Package 'git2r'

Title: Provides Access to Git Repositories
Description: Interface to the 'libgit2' library, which is a pure C implementation of the 'Git' core methods. Provides access to 'Git' repositories to extract data and running some basic 'Git' commands.
Authors: Stefan Widgren [aut, cre] , Gabor Csardi [ctb], Gregory Jefferis [ctb], Jennifer Bryan [ctb], Jeroen Ooms [ctb], Jim Hester [ctb], John Blischak [ctb], Karthik Ram [ctb], Peter Carbonetto [ctb], Scott Chamberlain [ctb], Thomas Rosendal [ctb]
Maintainer: Stefan Widgren <[email protected]>
License: GPL-2
Version: 0.35.0.9000
Built: 2024-11-20 06:05:46 UTC
Source: https://github.com/ropensci/git2r

Help Index

Extract object from tree

Description

Lookup a tree entry by its position in the tree

Usage

## S3 method for class 'git_tree'
x[i]

Arguments

x

The tree object
i

The index (integer or logical) of the tree object to extract. If negative values, all elements except those indicated are selected. A character vector to match against the names of objects to extract.

Value

Git object

Examples

## Not run: 
##' Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
dir.create(file.path(path, "subfolder"))
repo <- init(path)

##' Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

##' Create three files and commit
writeLines("First file",  file.path(path, "example-1.txt"))
writeLines("Second file", file.path(path, "subfolder/example-2.txt"))
writeLines("Third file",  file.path(path, "example-3.txt"))
add(repo, c("example-1.txt", "subfolder/example-2.txt", "example-3.txt"))
new_commit <- commit(repo, "Commit message")

##' Pick a tree in the repository
tree_object <- tree(new_commit)

##' Display tree
tree_object

##' Select item by name
tree_object["example-1.txt"]

##' Select first item in tree
tree_object[1]

##' Select first three items in tree
tree_object[1:3]

##' Select all blobs in tree
tree_object[vapply(as(tree_object, 'list'), is_blob, logical(1))]

## End(Not run)

Add file(s) to index

Description

Add file(s) to index

Usage

add(repo = ".", path = NULL, force = FALSE)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
path

Character vector with file names or shell glob patterns that will matched against files in the repository's working directory. Each file that matches will be added to the index (either updating an existing entry or adding a new entry).
force

Add ignored files. Default is FALSE.

Value

invisible(NULL)

Examples

## Not run: 
## Initialize a repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file
writeLines("a", file.path(path, "a.txt"))

## Add file to repository and view status
add(repo, "a.txt")
status(repo)

## Add file with a leading './' when the repository working
## directory is the current working directory
setwd(path)
writeLines("b", file.path(path, "b.txt"))
add(repo, "./b.txt")
status(repo)

## Add a file in a sub-folder with sub-folder as the working
## directory. Create a file in the root of the repository
## working directory that will remain untracked.
dir.create(file.path(path, "sub_dir"))
setwd("./sub_dir")
writeLines("c", file.path(path, "c.txt"))
writeLines("c", file.path(path, "sub_dir/c.txt"))
add(repo, "c.txt")
status(repo)

## Add files with glob expansion when the current working
## directory is outside the repository's working directory.
setwd(tempdir())
dir.create(file.path(path, "glob_dir"))
writeLines("d", file.path(path, "glob_dir/d.txt"))
writeLines("e", file.path(path, "glob_dir/e.txt"))
writeLines("f", file.path(path, "glob_dir/f.txt"))
writeLines("g", file.path(path, "glob_dir/g.md"))
add(repo, "glob_dir/*txt")
status(repo)

## Add file with glob expansion with a relative path when
## the current working directory is inside the repository's
## working directory.
setwd(path)
add(repo, "./glob_dir/*md")
status(repo)

## End(Not run)

Ahead Behind

Description

Count the number of unique commits between two commit objects.

Usage

ahead_behind(local = NULL, upstream = NULL)

Arguments

local

a git_commit object. Can also be a tag or a branch, and in that case the commit will be the target of the tag or branch.
upstream

a git_commit object. Can also be a tag or a branch, and in that case the commit will be the target of the tag or branch.

Value

An integer vector of length 2 with number of commits that the upstream commit is ahead and behind the local commit

Examples

## Not run: 
## Create a directory in tempdir
path <- tempfile(pattern="git2r-")
dir.create(path)

## Initialize a repository
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "test.txt"))
add(repo, "test.txt")
commit_1 <- commit(repo, "Commit message 1")
tag_1 <- tag(repo, "Tagname1", "Tag message 1")

# Change file and commit
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path, "test.txt"))
add(repo, "test.txt")
commit_2 <- commit(repo, "Commit message 2")
tag_2 <- tag(repo, "Tagname2", "Tag message 2")

ahead_behind(commit_1, commit_2)
ahead_behind(tag_1, tag_2)

## End(Not run)

Coerce Git repository to a data.frame

Description

The commits in the repository are coerced to a data.frame

Usage

## S3 method for class 'git_repository'
as.data.frame(x, ...)

Arguments

x

The repository object
...

Additional arguments. Not used.

Details

The data.frame have the following columns:

sha

The 40 character hexadecimal string of the SHA-1

summary

the short "summary" of the git commit message.

message

the full message of a commit

author

full name of the author

email

email of the author

when

time when the commit happened

Value

data.frame

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create three files and commit
writeLines("First file",  file.path(path, "example-1.txt"))
writeLines("Second file", file.path(path, "example-2.txt"))
writeLines("Third file",  file.path(path, "example-3.txt"))
add(repo, "example-1.txt")
commit(repo, "Commit first file")
add(repo, "example-2.txt")
commit(repo, "Commit second file")
add(repo, "example-3.txt")
commit(repo, "Commit third file")

## Coerce commits to a data.frame
df <- as.data.frame(repo)
df

## End(Not run)

Coerce entries in a git_tree to a data.frame

Description

The entries in a tree are coerced to a data.frame

Usage

## S3 method for class 'git_tree'
as.data.frame(x, ...)

Arguments

x

The tree object
...

Additional arguments. Not used.

Details

The data.frame have the following columns:

filemode

The UNIX file attributes of a tree entry

type

String representation of the tree entry type

sha

The sha of a tree entry

name

The filename of a tree entry

Value

data.frame

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
dir.create(file.path(path, "subfolder"))
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create three files and commit
writeLines("First file",  file.path(path, "example-1.txt"))
writeLines("Second file", file.path(path, "subfolder/example-2.txt"))
writeLines("Third file",  file.path(path, "example-3.txt"))
add(repo, c("example-1.txt", "subfolder/example-2.txt", "example-3.txt"))
commit(repo, "Commit message")

## Display tree
tree(last_commit(repo))

## Coerce tree to a data.frame
df <- as.data.frame(tree(last_commit(repo)))
df

## End(Not run)

Coerce entries in a git_tree to a list of entry objects

Description

Coerce entries in a git_tree to a list of entry objects

Usage

## S3 method for class 'git_tree'
as.list(x, ...)

Arguments

x

The tree object
...

Unused

Value

list of entry objects

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
dir.create(file.path(path, "subfolder"))
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create three files and commit
writeLines("First file",  file.path(path, "example-1.txt"))
writeLines("Second file", file.path(path, "subfolder/example-2.txt"))
writeLines("Third file",  file.path(path, "example-3.txt"))
add(repo, c("example-1.txt", "subfolder/example-2.txt", "example-3.txt"))
commit(repo, "Commit message")

## Inspect size of each blob in tree
invisible(lapply(as(tree(last_commit(repo)), "list"),
  function(obj) {
    if (is_blob(obj))
      summary(obj)
    NULL
  }))

## End(Not run)

Get blame for file

Description

Get blame for file

Usage

blame(repo = ".", path = NULL)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
path

Path to the file to consider

Value

git_blame object with the following entries:

path

The path to the file of the blame

hunks

List of blame hunks

repo

The git_repository that contains the file

lines_in_hunk

The number of lines in this hunk

final_commit_id

The sha of the commit where this line was last changed

final_start_line_number

The 1-based line number where this hunk begins, in the final version of the file

final_signature

Final committer

orig_commit_id

The sha of the commit where this hunk was found. This will usually be the same as 'final_commit_id'.

orig_start_line_number

The 1-based line number where this hunk begins in the file named by 'orig_path' in the commit specified by 'orig_commit_id'.

orig_signature

Origin committer

orig_path

The path to the file where this hunk originated, as of the commit specified by 'orig_commit_id'

boundary

TRUE iff the hunk has been tracked to a boundary commit.

repo

The git_repository object that contains the blame hunk

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a first user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Create a second user and change the file
config(repo, user.name = "Bob", user.email = "[email protected]")
writeLines(c("Hello world!", "HELLO WORLD!", "HOLA"),
           file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "Second commit message")

## Check blame
blame(repo, "example.txt")

## End(Not run)

Create blob from file on disk

Description

Read a file from the filesystem and write its content to the Object Database as a loose blob. The method is vectorized and accepts a vector of files to create blobs from.

Usage

blob_create(repo = ".", path = NULL, relative = TRUE)

Arguments

repo

The repository where the blob(s) will be written. Can be a bare repository. A git_repository object, or a path to a repository, or NULL. If the repo argument is NULL, the repository is searched for with discover_repository in the current working directory.
path

The file(s) from which the blob will be created.
relative

TRUE if the file(s) from which the blob will be created is relative to the repository's working dir. Default is TRUE.

Value

list of S3 class git_blob objects

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create blobs from files relative to workdir
writeLines("Hello, world!", file.path(path, "example-1.txt"))
writeLines("test content", file.path(path, "example-2.txt"))
blob_list_1 <- blob_create(repo, c("example-1.txt",
                                   "example-2.txt"))

## Create blobs from files not relative to workdir
temp_file_1 <- tempfile()
temp_file_2 <- tempfile()
writeLines("Hello, world!", temp_file_1)
writeLines("test content", temp_file_2)
blob_list_2 <- blob_create(repo, c(temp_file_1, temp_file_2),
                           relative = FALSE)

## End(Not run)

Create a branch

Description

Create a branch

Usage

branch_create(commit = last_commit(), name = NULL, force = FALSE)

Arguments

commit

Commit to which the branch should point. The default is to use the last_commit() function to determine the commit to which the branch should point.
name

Name for the branch
force

Overwrite existing branch. Default = FALSE

Value

invisible git_branch object

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
lines <- "Hello world!"
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit_1 <- commit(repo, "First commit message")

## Create a branch
branch_1 <- branch_create(commit_1, name = "test-branch")

## Add one more commit
lines <- c("Hello world!", "HELLO WORLD!")
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit_2 <- commit(repo, "Another commit message")

## Create a branch with the same name should fail
try(branch_create(commit_2, name = "test-branch"), TRUE)

## Force it
branch_2 <- branch_create(commit_2, name = "test-branch", force = TRUE)

## End(Not run)

Delete a branch

Description

Delete a branch

Usage

branch_delete(branch = NULL)

Arguments

branch

The branch

Value

invisible NULL

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit_1 <- commit(repo, "First commit message")

## Create a 'dev' branch
dev <- branch_create(commit_1, name = "dev")
branches(repo)

## Delete 'dev' branch
branch_delete(dev)
branches(repo)

## End(Not run)

Get remote tracking branch

Description

Get remote tracking branch, given a local branch.

Usage

branch_get_upstream(branch = NULL)

Arguments

branch

The branch

Value

git_branch object or NULL if no remote tracking branch.

Examples

## Not run: 
## Initialize two temporary repositories
path_bare <- tempfile(pattern="git2r-")
path_repo <- tempfile(pattern="git2r-")
dir.create(path_bare)
dir.create(path_repo)
repo_bare <- init(path_bare, bare = TRUE)
repo <- clone(path_bare, path_repo)

## Config user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path_repo, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Push commits from repository to bare repository
## Adds an upstream tracking branch to branch 'master'
push(repo, "origin", "refs/heads/master")

## Get remote tracking branch
branch_get_upstream(repository_head(repo))

## End(Not run)

Remote name of a branch

Description

The name of remote that the remote tracking branch belongs to

Usage

branch_remote_name(branch = NULL)

Arguments

branch

The branch

Value

character string with remote name

Examples

## Not run: 
## Initialize two temporary repositories
path_bare <- tempfile(pattern="git2r-")
path_repo <- tempfile(pattern="git2r-")
dir.create(path_bare)
dir.create(path_repo)
repo_bare <- init(path_bare, bare = TRUE)
repo <- clone(path_bare, path_repo)

## Config user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path_repo, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Push commits from repository to bare repository
## Adds an upstream tracking branch to branch 'master'
push(repo, "origin", "refs/heads/master")

## Get remote name
branch_remote_name(branches(repo)[[2]])

## End(Not run)

Remote url of a branch

Description

Remote url of a branch

Usage

branch_remote_url(branch = NULL)

Arguments

branch

The branch

Value

character string with remote url

Examples

## Not run: 
## Initialize two temporary repositories
path_bare <- tempfile(pattern="git2r-")
path_repo <- tempfile(pattern="git2r-")
dir.create(path_bare)
dir.create(path_repo)
repo_bare <- init(path_bare, bare = TRUE)
repo <- clone(path_bare, path_repo)

## Config user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path_repo, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Push commits from repository to bare repository
## Adds an upstream tracking branch to branch 'master'
push(repo, "origin", "refs/heads/master")

## Get remote url of tracking branch to branch 'master'
branch_remote_url(branch_get_upstream(repository_head(repo)))

## End(Not run)

Rename a branch

Description

Rename a branch

Usage

branch_rename(branch = NULL, name = NULL, force = FALSE)

Arguments

branch

Branch to rename
name

The new name for the branch
force

Overwrite existing branch. Default is FALSE

Value

invisible renamed git_branch object

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Config user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Rename 'master' branch to 'dev'
branches(repo)
branch_rename(repository_head(repo), "dev")
branches(repo)

## End(Not run)

Set remote tracking branch

Description

Set the upstream configuration for a given local branch

Usage

branch_set_upstream(branch = NULL, name)

Arguments

branch

The branch to configure
name

remote-tracking or local branch to set as upstream. Pass NULL to unset.

Value

invisible NULL

Examples

## Not run: 
## Initialize two temporary repositories
path_bare <- tempfile(pattern="git2r-")
path_repo <- tempfile(pattern="git2r-")
dir.create(path_bare)
dir.create(path_repo)
repo_bare <- init(path_bare, bare = TRUE)
repo <- clone(path_bare, path_repo)

## Config user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path_repo, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Push commits from repository to bare repository
## Adds an upstream tracking branch to branch 'master'
push(repo, "origin", "refs/heads/master")

## Unset remote remote tracking branch
branch_get_upstream(repository_head(repo))
branch_set_upstream(repository_head(repo), NULL)
branch_get_upstream(repository_head(repo))

## Set remote tracking branch
branch_set_upstream(repository_head(repo), "origin/master")
branch_get_upstream(repository_head(repo))

## End(Not run)

Get target (sha) pointed to by a branch

Description

Get target (sha) pointed to by a branch

Usage

branch_target(branch = NULL)

Arguments

branch

The branch

Value

sha or NA if not a direct reference

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Config user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Get target (sha) pointed to by 'master' branch
branch_target(repository_head(repo))

## End(Not run)

Branches

Description

List branches in repository

Usage

branches(repo = ".", flags = c("all", "local", "remote"))

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
flags

Filtering flags for the branch listing. Valid values are 'all', 'local' or 'remote'

Value

list of branches in repository

Examples

## Not run: 
## Initialize repositories
path_bare <- tempfile(pattern="git2r-")
path_repo <- tempfile(pattern="git2r-")
dir.create(path_bare)
dir.create(path_repo)
repo_bare <- init(path_bare, bare = TRUE)
repo <- clone(path_bare, path_repo)

## Config first user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path_repo, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Push commits from repository to bare repository
## Adds an upstream tracking branch to branch 'master'
push(repo, "origin", "refs/heads/master")

## List branches
branches(repo)

## End(Not run)

Bundle bare repo of package

Description

Clone the package git repository as a bare repository to pkg/inst/pkg.git

Usage

bundle_r_package(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

Invisible bundled git_repository object

Examples

## Not run: 
## Initialize repository
path <- tempfile()
dir.create(path)
path <- file.path(path, "git2r")
repo <- clone("https://github.com/ropensci/git2r.git", path)

## Bundle bare repository in package
bundle_r_package(repo)

## Build and install bundled package
wd <- setwd(dirname(path))
system(sprintf("R CMD build %s", path))
pkg <- list.files(".", pattern = "[.]tar[.]gz$")
system(sprintf("R CMD INSTALL %s", pkg))
setwd(wd)

## Reload package
detach("package:git2r", unload = TRUE)
library(git2r)

## Summarize last five commits of bundled repo
repo <- repository(system.file("git2r.git", package = "git2r"))
invisible(lapply(commits(repo, n = 5), summary))

## Plot content of bundled repo
plot(repo)

## End(Not run)

Checkout

Description

Update files in the index and working tree to match the content of the tree pointed at by the treeish object (commit, tag or tree). The default checkout strategy (force = FALSE) will only make modifications that will not lose changes. Use force = TRUE to force working directory to look like index.

Usage

checkout(
  object = NULL,
  branch = NULL,
  create = FALSE,
  force = FALSE,
  path = NULL,
  ...
)

Arguments

object

A path to a repository, or a git_repository object, or a git_commit object, or a git_tag object, or a git_tree object.
branch

name of the branch to check out. Only used if object is a path to a repository or a git_repository object.
create

create branch if it doesn't exist. Only used if object is a path to a repository or a git_repository object.
force

If TRUE, then make working directory match target. This will throw away local changes. Default is FALSE.
path

Limit the checkout operation to only certain paths. This argument is only used if branch is NULL. Default is NULL.
...

Additional arguments. Not used.

Value

invisible NULL

Examples

## Not run: 
## Create directories and initialize repositories
path_bare <- tempfile(pattern="git2r-")
path_repo_1 <- tempfile(pattern="git2r-")
path_repo_2 <- tempfile(pattern="git2r-")
dir.create(path_bare)
dir.create(path_repo_1)
dir.create(path_repo_2)
repo_bare <- init(path_bare, bare = TRUE)

## Clone to repo 1 and config user
repo_1 <- clone(path_bare, path_repo_1)
config(repo_1, user.name = "Alice", user.email = "[email protected]")

## Add changes to repo 1 and push to bare
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path_repo_1, "test.txt"))
add(repo_1, "test.txt")
commit(repo_1, "First commit message")
push(repo_1, "origin", "refs/heads/master")

## Create and checkout 'dev' branch in repo 1
checkout(repo_1, "dev", create = TRUE)

## Add changes to 'dev' branch in repo 1 and push to bare
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path_repo_1, "test.txt"))
add(repo_1, "test.txt")
commit(repo_1, "Second commit message")
push(repo_1, "origin", "refs/heads/dev")

## Clone to repo 2
repo_2 <- clone(path_bare, path_repo_2)
config(repo_2, user.name = "Bob", user.email = "[email protected]")

## Read content of 'test.txt'
readLines(file.path(path_repo_2, "test.txt"))

## Checkout dev branch
checkout(repo_2, "dev")

## Read content of 'test.txt'
readLines(file.path(path_repo_2, "test.txt"))

## Edit "test.txt" in repo_2
writeLines("Hello world!", con = file.path(path_repo_2, "test.txt"))

## Check status
status(repo_2)

## Checkout "test.txt"
checkout(repo_2, path = "test.txt")

## Check status
status(repo_2)

## End(Not run)

Clone a remote repository

Description

Clone a remote repository

Usage

clone(
  url = NULL,
  local_path = NULL,
  bare = FALSE,
  branch = NULL,
  checkout = TRUE,
  credentials = NULL,
  progress = TRUE
)

Arguments

url

The remote repository to clone
local_path

Local directory to clone to.
bare

Create a bare repository. Default is FALSE.
branch

The name of the branch to checkout. Default is NULL which means to use the remote's default branch.
checkout

Checkout HEAD after the clone is complete. Default is TRUE.
credentials

The credentials for remote repository access. Default is NULL. To use and query an ssh-agent for the ssh key credentials, let this parameter be NULL (the default).
progress

Show progress. Default is TRUE.

Value

A git_repository object.

See Also

repository, cred_user_pass, cred_ssh_key

Examples

## Not run: 
## Initialize repository
path_repo_1 <- tempfile(pattern="git2r-")
path_repo_2 <- tempfile(pattern="git2r-")
dir.create(path_repo_1)
dir.create(path_repo_2)
repo_1 <- init(path_repo_1)

## Config user and commit a file
config(repo_1, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
writeLines(
    "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
    file.path(path_repo_1, "example.txt"))
add(repo_1, "example.txt")
commit(repo_1, "First commit message")

## Change file and commit
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path_repo_1, "example.txt"))
add(repo_1, "example.txt")
commit(repo_1, "Second commit message")

## Change file again and commit.
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad",
  "minim veniam, quis nostrud exercitation ullamco laboris nisi ut")
writeLines(lines, file.path(path_repo_1, "example.txt"))
add(repo_1, "example.txt")
commit(repo_1, "Third commit message")

## Clone to second repository
repo_2 <- clone(path_repo_1, path_repo_2)

## List commits in repositories
commits(repo_1)
commits(repo_2)

## End(Not run)

Commit

Description

Commit

Usage

commit(
  repo = ".",
  message = NULL,
  all = FALSE,
  session = FALSE,
  author = NULL,
  committer = NULL
)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
message

The commit message.
all

Stage modified and deleted files. Files not added to Git are not affected.
session

Add sessionInfo to commit message. Default is FALSE.
author

Signature with author and author time of commit.
committer

Signature with committer and commit time of commit.

Value

A list of class git_commit with entries:

sha

The 40 character hexadecimal string of the SHA-1

author

An author signature

committer

The committer signature

summary

The short "summary" of a git commit message, comprising the first paragraph of the message with whitespace trimmed and squashed.

message

The message of a commit

repo

The git_repository object that contains the commit

Examples

## Not run: 
## Initialize a repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Config user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## End(Not run)

Commits

Description

Commits

Usage

commits(
  repo = ".",
  topological = TRUE,
  time = TRUE,
  reverse = FALSE,
  n = NULL,
  ref = NULL,
  path = NULL
)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
topological

Sort the commits in topological order (parents before children); can be combined with time sorting. Default is TRUE.
time

Sort the commits by commit time; Can be combined with topological sorting. Default is TRUE.
reverse

Sort the commits in reverse order; can be combined with topological and/or time sorting. Default is FALSE.
n

The upper limit of the number of commits to output. The default is NULL for unlimited number of commits.
ref

The name of a reference to list commits from e.g. a tag or a branch. The default is NULL for the current branch.
path

The path to a file. If not NULL, only commits modifying this file will be returned. Note that modifying commits that occurred before the file was given its present name are not returned; that is, the output of git log with --no-follow is reproduced.

Value

list of commits in repository

Examples

## Not run: 
## Initialize a repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Config user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Change file and commit
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "Second commit message")

## Create a tag
tag(repo, "Tagname", "Tag message")

## Change file again and commit
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad",
  "minim veniam, quis nostrud exercitation ullamco laboris nisi ut")
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "Third commit message")

## Create a new file containing R code, and commit.
writeLines(c("x <- seq(1,100)",
             "print(mean(x))"),
           file.path(path, "mean.R"))
add(repo, "mean.R")
commit(repo, "Fourth commit message")

## List the commits in the repository
commits(repo)

## List the commits starting from the tag
commits(repo, ref = "Tagname")

## List the commits modifying example.txt and mean.R.
commits(repo, path = "example.txt")
commits(repo, path = "mean.R")

## Create and checkout 'dev' branch in the repo
checkout(repo, "dev", create = TRUE)

## Add changes to the 'dev' branch
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "Commit message in dev branch")

## Checkout the 'master' branch again and list the commits
## starting from the 'dev' branch.
checkout(repo, "master")
commits(repo, ref = "dev")

## End(Not run)

Config

Description

Config file management. To display the configuration variables, call method config without the user.name, user.email or ... options.

Usage

config(repo = NULL, global = FALSE, user.name, user.email, ...)

Arguments

repo

The repository. Default is NULL.
global

Write option(s) to global configuration file. Default is FALSE.
user.name

The user name. Use NULL to delete the entry
user.email

The e-mail address. Use NULL to delete the entry
...

Additional options to write or delete from the configuration.

Details

There are two ways git2r can find the local repository when writing local options (1) Use the repo argument. (2) If the repo argument is NULL but the current working directory is inside the local repository, then git2r uses that repository.

Value

S3 class git_config. When writing options, the configuration is returned invisible.

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern = "git2r-")
dir.create(path)
repo <- init(path)

## Set user name and email.
config(repo, user.name = "Alice", user.email = "[email protected]")

## Display configuration
config(repo)

## Delete user email.
config(repo, user.email = NULL)

## Display configuration
config(repo)

## End(Not run)

Content of blob

Description

Content of blob

Usage

content(blob = NULL, split = TRUE, raw = FALSE)

Arguments

blob

The blob object.
split

Split blob content to text lines. Default TRUE.
raw

When TRUE, get the content of the blob as a raw vector, else as a character vector. Default is FALSE.

Value

The content of the blob. NA_character_ if the blob is binary and raw is FALSE.

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Display content of blob.
content(tree(commits(repo)[[1]])["example.txt"])

## End(Not run)

Contributions

Description

See contributions to a Git repo

Usage

contributions(
  repo = ".",
  breaks = c("month", "year", "quarter", "week", "day"),
  by = c("commits", "author")
)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
breaks

Default is month. Change to year, quarter, week or day as necessary.
by

Contributions by "commits" or "author". Default is "commits".

Value

A data.frame with contributions.

Examples

## Not run: 
## Create directories and initialize repositories
path_bare <- tempfile(pattern="git2r-")
path_repo_1 <- tempfile(pattern="git2r-")
path_repo_2 <- tempfile(pattern="git2r-")
dir.create(path_bare)
dir.create(path_repo_1)
dir.create(path_repo_2)
repo_bare <- init(path_bare, bare = TRUE)

## Clone to repo 1 and config user
repo_1 <- clone(path_bare, path_repo_1)
config(repo_1, user.name = "Alice", user.email = "[email protected]")

## Add changes to repo 1 and push to bare
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path_repo_1, "test.txt"))
add(repo_1, "test.txt")
commit(repo_1, "First commit message")

## Add more changes to repo 1
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path_repo_1, "test.txt"))
add(repo_1, "test.txt")
commit(repo_1, "Second commit message")

## Push to bare
push(repo_1, "origin", "refs/heads/master")

## Clone to repo 2
repo_2 <- clone(path_bare, path_repo_2)
config(repo_2, user.name = "Bob", user.email = "[email protected]")

## Add changes to repo 2
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad",
  "minim veniam, quis nostrud exercitation ullamco laboris nisi ut")
writeLines(lines, file.path(path_repo_2, "test.txt"))
add(repo_2, "test.txt")
commit(repo_2, "Third commit message")

## Push to bare
push(repo_2, "origin", "refs/heads/master")

## Pull changes to repo 1
pull(repo_1)

## View contributions by day
contributions(repo_1)

## View contributions by author and day
contributions(repo_1, by = "author")

## End(Not run)

Create a new environmental credential object

Description

Environmental variables can be written to the file .Renviron. This file is read by R during startup, see Startup.

Usage

cred_env(username = NULL, password = NULL)

Arguments

username

The name of the environmental variable that holds the username for the authentication.
password

The name of the environmental variable that holds the password for the authentication.

Value

A list of class cred_env with entries:

username

The name of the environmental variable that holds the username for the authentication.

password

The name of the environmental variable that holds the password for the authentication.

See Also

Other git credential functions: cred_ssh_key(), cred_token(), cred_user_pass()

Examples

## Not run: 
## Create an environmental credential object for the username and
## password.
cred <- cred_env("NAME_OF_ENV_VARIABLE_WITH_USERNAME",
                 "NAME_OF_ENV_VARIABLE_WITH_PASSWORD")
repo <- repository("git2r")
push(repo, credentials = cred)

## End(Not run)

Create a new passphrase-protected ssh key credential object

Description

Create a new passphrase-protected ssh key credential object

Usage

cred_ssh_key(
  publickey = ssh_path("id_rsa.pub"),
  privatekey = ssh_path("id_rsa"),
  passphrase = character(0)
)

Arguments

publickey

The path to the public key of the credential. Default is ssh_path("id_rsa.pub")
privatekey

The path to the private key of the credential. Default is ssh_path("id_rsa")
passphrase

The passphrase of the credential. Default is character(0). If getPass is installed and private key is passphrase protected getPass::getPass() will be called to allow for interactive and obfuscated interactive input of the passphrase.

Value

A list of class cred_ssh_key with entries:

publickey

The path to the public key of the credential

privatekey

The path to the private key of the credential

passphrase

The passphrase of the credential

See Also

Other git credential functions: cred_env(), cred_token(), cred_user_pass()

Examples

## Not run: 
## Create a ssh key credential object. It can optionally be
## passphrase-protected
cred <- cred_ssh_key(ssh_path("id_rsa.pub"), ssh_path("id_rsa"))
repo <- repository("git2r")
push(repo, credentials = cred)

## End(Not run)

Create a new personal access token credential object

Description

The personal access token is stored in an envrionmental variable. Environmental variables can be written to the file .Renviron. This file is read by R during startup, see Startup. On GitHub, personal access tokens function like ordinary OAuth access tokens. They can be used instead of a password for Git over HTTPS, see the “Creating a personal access token” article on GitHub Docs.

Usage

cred_token(token = "GITHUB_PAT")

Arguments

token

The name of the environmental variable that holds the personal access token for the authentication. Default is GITHUB_PAT.

Value

A list of class cred_token with entry:

token

The name of the environmental variable that holds the personal access token for the authentication.

See Also

Other git credential functions: cred_env(), cred_ssh_key(), cred_user_pass()

Examples

## Not run: 
## Create a personal access token credential object.
## This example assumes that the token is stored in
## the 'GITHUB_PAT' environmental variable.
repo <- repository("git2r")
cred <- cred_token()
push(repo, credentials = cred)

## End(Not run)

Create a new plain-text username and password credential object

Description

Create a new plain-text username and password credential object

Usage

cred_user_pass(username = NULL, password = NULL)

Arguments

username

The username of the credential
password

The password of the credential. If getPass is installed and the only input is username, getPass::getPass() will be called to allow for interactive and obfuscated interactive input of the password.

Value

A list of class cred_user_pass with entries:

username

The username of the credential

password

The password of the credential

See Also

Other git credential functions: cred_env(), cred_ssh_key(), cred_token()

Examples

## Not run: 
## Create a plain-text username and password credential object
cred_user_pass("Random Developer", "SecretPassword")

## End(Not run)

Get the signature

Description

Get the signature according to the repository's configuration

Usage

default_signature(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

A git_signature object with entries:

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Get the default signature
default_signature(repo)

## Change user
config(repo, user.name = "Bob", user.email = "[email protected]")

## Get the default signature
default_signature(repo)

## End(Not run)

Descendant

Description

Determine if a commit is the descendant of another commit

Usage

descendant_of(commit = NULL, ancestor = NULL)

Arguments

commit

a git_commit object. Can also be a tag or a branch, and in that case the commit will be the target of the tag or branch.
ancestor

a git_commit object to check if ancestor to commit. Can also be a tag or a branch, and in that case the commit will be the target of the tag or branch.

Value

TRUE if commit is descendant of ancestor, else FALSE

Examples

## Not run: 
## Create a directory in tempdir
path <- tempfile(pattern="git2r-")
dir.create(path)

## Initialize a repository
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "test.txt"))
add(repo, "test.txt")
commit_1 <- commit(repo, "Commit message 1")
tag_1 <- tag(repo, "Tagname1", "Tag message 1")

# Change file and commit
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path, "test.txt"))
add(repo, "test.txt")
commit_2 <- commit(repo, "Commit message 2")
tag_2 <- tag(repo, "Tagname2", "Tag message 2")

descendant_of(commit_1, commit_2)
descendant_of(commit_2, commit_1)
descendant_of(tag_1, tag_2)
descendant_of(tag_2, tag_1)

## End(Not run)

Changes between commits, trees, working tree, etc.

Description

Changes between commits, trees, working tree, etc.

Usage

## S3 method for class 'git_repository'
diff(
  x,
  index = FALSE,
  as_char = FALSE,
  filename = NULL,
  context_lines = 3,
  interhunk_lines = 0,
  old_prefix = "a",
  new_prefix = "b",
  id_abbrev = NULL,
  path = NULL,
  max_size = NULL,
  ...
)

## S3 method for class 'git_tree'
diff(
  x,
  new_tree = NULL,
  index = FALSE,
  as_char = FALSE,
  filename = NULL,
  context_lines = 3,
  interhunk_lines = 0,
  old_prefix = "a",
  new_prefix = "b",
  id_abbrev = NULL,
  path = NULL,
  max_size = NULL,
  ...
)

Arguments

x

A git_repository object or the old git_tree object to compare to.
index
When object equals a git_repository

Whether to compare the index to HEAD. If FALSE (the default), then the working tree is compared to the index.

When object equals a git_tree

Whether to use the working directory (by default), or the index (if set to TRUE) in the comparison to object.

as_char

logical: should the result be converted to a character string?. Default is FALSE.
filename

If as_char is TRUE, then the diff can be written to a file with name filename (the file is overwritten if it exists). Default is NULL.
context_lines

The number of unchanged lines that define the boundary of a hunk (and to display before and after). Defaults to 3.
interhunk_lines

The maximum number of unchanged lines between hunk boundaries before the hunks will be merged into one. Defaults to 0.
old_prefix

The virtual "directory" prefix for old file names in hunk headers. Default is "a".
new_prefix

The virtual "directory" prefix for new file names in hunk headers. Defaults to "b".
id_abbrev

The abbreviation length to use when formatting object ids. Defaults to the value of 'core.abbrev' from the config, or 7 if NULL.
path

A character vector of paths / fnmatch patterns to constrain diff. Default is NULL which include all paths.
max_size

A size (in bytes) above which a blob will be marked as binary automatically; pass a negative value to disable. Defaults to 512MB when max_size is NULL.
...

Not used.
new_tree

The new git_tree object to compare, or NULL. If NULL, then we use the working directory or the index (see the index argument).

Value

A git_diff object if as_char is FALSE. If as_char is TRUE and filename is NULL, a character string, else NULL.

Line endings

Different operating systems handle line endings differently. Windows uses both a carriage-return character and a linefeed character to represent a newline in a file. While Linux and macOS use only the linefeed character for a newline in a file. To avoid problems in your diffs, you can configure Git to properly handle line endings using the ⁠core.autocrlf⁠ setting in the Git config file, see the Git documentation (https://git-scm.com/).

Examples

## Not run: 
## Initialize a repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Config user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add, commit
writeLines("Hello world!", file.path(path, "test.txt"))
add(repo, "test.txt")
commit(repo, "Commit message")

## Change the file
writeLines(c("Hello again!", "Here is a second line", "And a third"),
           file.path(path, "test.txt"))

## diff between index and workdir
diff_1 <- diff(repo)
summary(diff_1)
cat(diff(repo, as_char=TRUE))

## Diff between index and HEAD is empty
diff_2 <- diff(repo, index=TRUE)
summary(diff_2)
cat(diff(repo, index=TRUE, as_char=TRUE))

## Diff between tree and working dir, same as diff_1
diff_3 <- diff(tree(commits(repo)[[1]]))
summary(diff_3)
cat(diff(tree(commits(repo)[[1]]), as_char=TRUE))

## Add changes, diff between index and HEAD is the same as diff_1
add(repo, "test.txt")
diff_4 <- diff(repo, index=TRUE)
summary(diff_4)
cat(diff(repo, index=TRUE, as_char=TRUE))

## Diff between tree and index
diff_5 <- diff(tree(commits(repo)[[1]]), index=TRUE)
summary(diff_5)
cat(diff(tree(commits(repo)[[1]]), index=TRUE, as_char=TRUE))

## Diff between two trees
commit(repo, "Second commit")
tree_1 <- tree(commits(repo)[[2]])
tree_2 <- tree(commits(repo)[[1]])
diff_6 <- diff(tree_1, tree_2)
summary(diff_6)
cat(diff(tree_1, tree_2, as_char=TRUE))

## Binary files
set.seed(42)
writeBin(as.raw((sample(0:255, 1000, replace=TRUE))),
         con=file.path(path, "test.bin"))
add(repo, "test.bin")
diff_7 <- diff(repo, index=TRUE)
summary(diff_7)
cat(diff(repo, index=TRUE, as_char=TRUE))

## End(Not run)

Find path to repository for any file

Description

Find path to repository for any file

Usage

discover_repository(path = ".", ceiling = NULL)

Arguments

path

A character vector specifying the path to a file or folder
ceiling

The default is to not use the ceiling argument and start the lookup from path and walk across parent directories. When ceiling is 0, the lookup is only in path. When ceiling is 1, the lookup is in both the path and the parent to path.

Value

Character vector with path (terminated by a file separator) to repository or NULL if this cannot be established.

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "example-1.txt"))
add(repo, "example-1.txt")
commit(repo, "First commit message")

## Create a second file. The file is not added for version control
## in the repository.
dir.create(file.path(path, "example"))
file_2 <- file.path(path, "example/example-2.txt")
writeLines("Not under version control", file_2)

## Find the path to the repository using the path to the second file
discover_repository(file_2)

## Demonstrate the 'ceiling' argument
wd <- workdir(repo)
dir.create(file.path(wd, "temp"))

## Lookup repository in 'file.path(wd, "temp")'. Should return NULL
discover_repository(file.path(wd, "temp"), ceiling = 0)

## Lookup repository in parent to 'file.path(wd, "temp")'.
## Should not return NULL
discover_repository(file.path(wd, "temp"), ceiling = 1)

## End(Not run)

Fetch new data and update tips

Description

Fetch new data and update tips

Usage

fetch(
  repo = ".",
  name = NULL,
  credentials = NULL,
  verbose = TRUE,
  refspec = NULL
)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
name

the remote's name
credentials

The credentials for remote repository access. Default is NULL. To use and query an ssh-agent for the ssh key credentials, let this parameter be NULL (the default).
verbose

Print information each time a reference is updated locally. Default is TRUE.
refspec

The refs to fetch and which local refs to update, see examples. Pass NULL to use the remote.<repository>.fetch variable. Default is NULL.

Value

invisible list of class git_transfer_progress with statistics from the fetch operation:

total_objects

Number of objects in the packfile being downloaded

indexed_objects

Received objects that have been hashed

received_objects

Objects which have been downloaded

total_deltas

Total number of deltas in the pack

indexed_deltas

Deltas which have been indexed

local_objects

Locally-available objects that have been injected in order to fix a thin pack

received_bytes

Size of the packfile received up to now

Examples

## Not run: 
## Initialize three temporary repositories
path_bare <- tempfile(pattern="git2r-")
path_repo_1 <- tempfile(pattern="git2r-")
path_repo_2 <- tempfile(pattern="git2r-")

dir.create(path_bare)
dir.create(path_repo_1)
dir.create(path_repo_2)

bare_repo <- init(path_bare, bare = TRUE)
repo_1 <- clone(path_bare, path_repo_1)
repo_2 <- clone(path_bare, path_repo_2)

config(repo_1, user.name = "Alice", user.email = "[email protected]")
config(repo_2, user.name = "Bob", user.email = "[email protected]")

## Add changes to repo 1
writeLines("Lorem ipsum dolor sit amet",
           con = file.path(path_repo_1, "example.txt"))
add(repo_1, "example.txt")
commit(repo_1, "Commit message")

## Push changes from repo 1 to origin (bare_repo)
push(repo_1, "origin", "refs/heads/master")

## Fetch changes from origin (bare_repo) to repo 2
fetch(repo_2, "origin")

## List updated heads
fetch_heads(repo_2)

## Checking out GitHub pull requests locally
path <- tempfile(pattern="ghit-")
repo <- clone("https://github.com/leeper/ghit", path)
fetch(repo, "origin", refspec = "pull/13/head:refs/heads/BRANCHNAME")
checkout(repo, "BRANCHNAME")
summary(repo)

## End(Not run)

Get updated heads during the last fetch.

Description

Get updated heads during the last fetch.

Usage

fetch_heads(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

list with git_fetch_head entries. NULL if there is no FETCH_HEAD file.

Examples

## Not run: 
## Initialize three temporary repositories
path_bare <- tempfile(pattern="git2r-")
path_repo_1 <- tempfile(pattern="git2r-")
path_repo_2 <- tempfile(pattern="git2r-")

dir.create(path_bare)
dir.create(path_repo_1)
dir.create(path_repo_2)

bare_repo <- init(path_bare, bare = TRUE)
repo_1 <- clone(path_bare, path_repo_1)
repo_2 <- clone(path_bare, path_repo_2)

config(repo_1, user.name = "Alice", user.email = "[email protected]")
config(repo_2, user.name = "Bob", user.email = "[email protected]")

## Add changes to repo 1
writeLines("Lorem ipsum dolor sit amet",
           con = file.path(path_repo_1, "example.txt"))
add(repo_1, "example.txt")
commit(repo_1, "Commit message")

## Push changes from repo 1 to origin (bare_repo)
push(repo_1, "origin", "refs/heads/master")

## Fetch changes from origin (bare_repo) to repo 2
fetch(repo_2, "origin")

## List updated heads
fetch_heads(repo_2)

## End(Not run)

Locate the path to configuration files

Description

Potential configuration files:

system

Locate the path to the system configuration file. If '/etc/gitconfig' doesn't exist, it will look for '%PROGRAMFILES%'.

xdg

Locate the path to the global xdg compatible configuration file. The xdg compatible configuration file is usually located in '$HOME/.config/git/config'. This method will try to guess the full path to that file, if the file exists.

global

The user or global configuration file is usually located in '$HOME/.gitconfig'. This method will try to guess the full path to that file, if the file exists.

local

Locate the path to the repository specific configuration file, if the file exists.

Usage

git_config_files(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

a data.frame with one row per potential configuration file where NA means not found.

Time

Description

The class git_time stores the time a Git object was created.

Usage

## S3 method for class 'git_time'
as.character(x, tz = "GMT", origin = "1970-01-01", usetz = TRUE, ...)

## S3 method for class 'git_time'
format(x, tz = "GMT", origin = "1970-01-01", usetz = TRUE, ...)

## S3 method for class 'git_time'
as.POSIXct(x, tz = "GMT", origin = "1970-01-01", ...)

## S3 method for class 'git_time'
print(x, tz = "GMT", origin = "1970-01-01", usetz = TRUE, ...)

Arguments

x

R object to be converted.
tz

a character string. The time zone specification to be used for the conversion, if one is required. System-specific (see time zones), but "" is the current time zone, and "GMT" is UTC (Universal Time, Coordinated). Invalid values are most commonly treated as UTC, on some platforms with a warning.
origin

a date-time object, or something which can be coerced by as.POSIXct(tz = "GMT") to such an object. Optional since R 4.3.0, where the equivalent of "1970-01-01" is used.
usetz

logical. Should the time zone abbreviation be appended to the output? This is used in printing times, and more reliable than using "%Z".
...

further arguments to be passed to or from other methods.

Details

The default is to use tz = "GMT" and origin = "1970-01-01". To use your local timezone, set tz = Sys.timezone().

See Also

when

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a first user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Create tag
tag(repo, "Tagname", "Tag message")

as.POSIXct(commits(repo)[[1]]$author$when)
as.POSIXct(tags(repo)[[1]]$tagger$when)
as.POSIXct(tags(repo)[[1]]$tagger$when, tz = Sys.timezone())

## End(Not run)

git2r: R bindings to the libgit2 library

Description

git2r: R bindings to the libgit2 library.

Author(s)

Maintainer: Stefan Widgren [email protected] (ORCID)

Other contributors:

  • Gabor Csardi [contributor]

  • Gregory Jefferis [contributor]

  • Jennifer Bryan [contributor]

  • Jeroen Ooms [contributor]

  • Jim Hester [contributor]

  • John Blischak [contributor]

  • Karthik Ram [contributor]

  • Peter Carbonetto [contributor]

  • Scott Chamberlain [contributor]

  • Thomas Rosendal [contributor]

See Also

Useful links:

Determine the sha from a blob string

Description

The blob is not written to the object database.

Usage

hash(data = NULL)

Arguments

data

The string vector to hash.

Value

A string vector with the sha for each string in data.

Examples

## Not run: 
identical(hash(c("Hello, world!\n",
                 "test content\n")),
               c("af5626b4a114abcb82d63db7c8082c3c4756e51b",
                 "d670460b4b4aece5915caf5c68d12f560a9fe3e4"))

## End(Not run)

Determine the sha from a blob in a file

Description

The blob is not written to the object database.

Usage

hashfile(path = NULL)

Arguments

path

The path vector with files to hash.

Value

A vector with the sha for each file in path.

Examples

## Not run: 
## Create a file. NOTE: The line endings from writeLines gives
## LF (line feed) on Unix/Linux and CRLF (carriage return, line feed)
## on Windows. The example use writeChar to have more control.
path <- tempfile()
f <- file(path, "wb")
writeChar("Hello, world!\n", f, eos = NULL)
close(f)

## Generate hash
hashfile(path)
identical(hashfile(path), hash("Hello, world!\n"))

## End(Not run)

Get HEAD for a repository

Description

Get HEAD for a repository

Usage

## S3 method for class 'git_repository'
head(x, ...)

Arguments

x

The repository x to check head
...

Additional arguments. Unused.

Value

NULL if unborn branch or not found. A git_branch if not a detached head. A git_commit if detached head

Examples

## Not run: 
## Create and initialize a repository in a temporary directory
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "Commit message")

## Get HEAD of repository
repository_head(repo)

## End(Not run)

Determine if a directory is in a git repository

Description

The lookup start from path and walk across parent directories if nothing has been found.

Usage

in_repository(path = ".")

Arguments

path

The path to the directory.

Value

TRUE if directory is in a git repository else FALSE

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Check if path is in a git repository
in_repository(path)

## Check if working directory is in a git repository
setwd(path)
in_repository()

## End(Not run)

Remove an index entry corresponding to a file on disk

Description

Remove an index entry corresponding to a file on disk

Usage

index_remove_bypath(repo = ".", path = NULL)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
path

character vector with filenames to remove. The path must be relative to the repository's working folder. It may exist. If this file currently is the result of a merge conflict, this file will no longer be marked as conflicting. The data about the conflict will be moved to the "resolve undo" (REUC) section.

Value

invisible(NULL)

Examples

## Not run: 
## Initialize a repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file
writeLines("Hello world!", file.path(path, "file-to-remove.txt"))

## Add file to repository
add(repo, "file-to-remove.txt")

## View status of repository
status(repo)

## Remove file
index_remove_bypath(repo, "file-to-remove.txt")

## View status of repository
status(repo)

## End(Not run)

Init a repository

Description

Init a repository

Usage

init(path = ".", bare = FALSE, branch = NULL)

Arguments

path

A path to where to init a git repository
bare

If TRUE, a Git repository without a working directory is created at the pointed path. If FALSE, provided path will be considered as the working directory into which the .git directory will be created.
branch

Use the specified name for the initial branch in the newly created repository. If branch=NULL, fall back to the default name.

Value

A git_repository object

See Also

repository

Examples

## Not run: 
## Initialize a repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)
is_bare(repo)

## Initialize a bare repository
path_bare <- tempfile(pattern="git2r-")
dir.create(path_bare)
repo_bare <- init(path_bare, bare = TRUE)
is_bare(repo_bare)

## End(Not run)

Check if repository is bare

Description

Check if repository is bare

Usage

is_bare(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

TRUE if bare repository, else FALSE

See Also

init

Examples

## Not run: 
## Initialize a repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)
is_bare(repo)

## Initialize a bare repository
path_bare <- tempfile(pattern="git2r-")
dir.create(path_bare)
repo_bare <- init(path_bare, bare = TRUE)
is_bare(repo_bare)

## End(Not run)

Is blob binary

Description

Is blob binary

Usage

is_binary(blob = NULL)

Arguments

blob

The blob object.

Value

TRUE if binary data, FALSE if not.

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Commit a text file
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit_1 <- commit(repo, "First commit message")

## Check if binary
b_text <- tree(commit_1)["example.txt"]
is_binary(b_text)

## Commit plot file (binary)
x <- 1:100
y <- x^2
png(file.path(path, "plot.png"))
plot(y ~ x, type = "l")
dev.off()
add(repo, "plot.png")
commit_2 <- commit(repo, "Second commit message")

## Check if binary
b_png <- tree(commit_2)["plot.png"]
is_binary(b_png)

## End(Not run)

Check if object is S3 class git_blob

Description

Check if object is S3 class git_blob

Usage

is_blob(object)

Arguments

object

Check if object is S3 class git_blob

Value

TRUE if object is S3 class git_blob, else FALSE

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Commit a text file
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit_1 <- commit(repo, "First commit message")
blob_1 <- tree(commit_1)["example.txt"]

## Check if blob
is_blob(commit_1)
is_blob(blob_1)

## End(Not run)

Check if object is git_branch

Description

Check if object is git_branch

Usage

is_branch(object)

Arguments

object

Check if object is of class git_branch

Value

TRUE if object is class git_branch, else FALSE

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Commit a text file
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

branch <- branches(repo)[[1]]

## Check if branch
is_branch(branch)

## End(Not run)

Check if object is a git_commit object

Description

Check if object is a git_commit object

Usage

is_commit(object)

Arguments

object

Check if object is a git_commit object

Value

TRUE if object is a git_commit, else FALSE

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Commit a text file
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit_1 <- commit(repo, "First commit message")

## Check if commit
is_commit(commit_1)

## End(Not run)

Check if HEAD of repository is detached

Description

Check if HEAD of repository is detached

Usage

is_detached(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

TRUE if repository HEAD is detached, else FALSE.

Examples

## Not run: 
## Create and initialize a repository in a temporary directory
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit_1 <- commit(repo, "Commit message 1")

## Change file, add and commit
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "Commit message 2")

## HEAD of repository is not detached
is_detached(repo)

## Checkout first commit
checkout(commit_1)

## HEAD of repository is detached
is_detached(repo)

## End(Not run)

Check if repository is empty

Description

Check if repository is empty

Usage

is_empty(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

TRUE if repository is empty else FALSE.

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Check if it's an empty repository
is_empty(repo)

## Commit a file
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Check if it's an empty repository
is_empty(repo)

## End(Not run)

Check if branch is head

Description

Check if branch is head

Usage

is_head(branch = NULL)

Arguments

branch

The branch object to check if it's head.

Value

TRUE if branch is head, else FALSE.

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## List branches
branches(repo)

## Check that 'master' is_head
master <- branches(repo)[[1]]
is_head(master)

## Create and checkout 'dev' branch
checkout(repo, "dev", create = TRUE)

## List branches
branches(repo)

## Check that 'master' is no longer head
is_head(master)

## End(Not run)

Check if branch is local

Description

Check if branch is local

Usage

is_local(branch)

Arguments

branch

The branch object to check if it's local

Value

TRUE if branch is local, else FALSE.

Examples

## Not run: 
## Initialize repositories
path_bare <- tempfile(pattern="git2r-")
path_repo <- tempfile(pattern="git2r-")
dir.create(path_bare)
dir.create(path_repo)
repo_bare <- init(path_bare, bare = TRUE)
repo <- clone(path_bare, path_repo)

## Config first user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path_repo, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Push commits from repository to bare repository
## Adds an upstream tracking branch to branch 'master'
push(repo, "origin", "refs/heads/master")

## List branches
branches(repo)

## Check if first branch is_local
is_local(branches(repo)[[1]])

## Check if second branch is_local
is_local(branches(repo)[[2]])

## End(Not run)

Is merge

Description

Determine if a commit is a merge commit, i.e. has more than one parent.

Usage

is_merge(commit = NULL)

Arguments

commit

a git_commit object.

Value

TRUE if commit has more than one parent, else FALSE

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
writeLines(c("First line in file 1.", "Second line in file 1."),
           file.path(path, "example-1.txt"))
add(repo, "example-1.txt")
commit(repo, "First commit message")

## Create and add one more file
writeLines(c("First line in file 2.", "Second line in file 2."),
           file.path(path, "example-2.txt"))
add(repo, "example-2.txt")
commit(repo, "Second commit message")

## Create a new branch 'fix'
checkout(repo, "fix", create = TRUE)

## Update 'example-1.txt' (swap words in first line) and commit
writeLines(c("line First in file 1.", "Second line in file 1."),
           file.path(path, "example-1.txt"))
add(repo, "example-1.txt")
commit(repo, "Third commit message")

checkout(repo, "master")

## Update 'example-2.txt' (swap words in second line) and commit
writeLines(c("First line in file 2.", "line Second in file 2."),
           file.path(path, "example-2.txt"))
add(repo, "example-2.txt")
commit(repo, "Fourth commit message")

## Merge 'fix'
merge(repo, "fix")

## Display parents of last commit
parents(lookup(repo, branch_target(repository_head(repo))))

## Check that last commit is a merge
is_merge(lookup(repo, branch_target(repository_head(repo))))

## End(Not run)

Determine if the repository is a shallow clone

Description

Determine if the repository is a shallow clone

Usage

is_shallow(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

TRUE if shallow clone, else FALSE

Examples

## Not run: 
## Initialize repository
path_repo_1 <- tempfile(pattern="git2r-")
path_repo_2 <- tempfile(pattern="git2r-")
dir.create(path_repo_1)
dir.create(path_repo_2)
repo_1 <- init(path_repo_1)

## Config user and commit a file
config(repo_1, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path_repo_1, "example.txt"))
add(repo_1, "example.txt")
commit(repo_1, "First commit message")

## Change file and commit
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path_repo_1, "example.txt"))
add(repo_1, "example.txt")
commit(repo_1, "Second commit message")

## Change file again and commit.
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad",
  "minim veniam, quis nostrud exercitation ullamco laboris nisi ut")
writeLines(lines, file.path(path_repo_1, "example.txt"))
add(repo_1, "example.txt")
commit(repo_1, "Third commit message")

## Clone to second repository
repo_2 <- clone(path_repo_1, path_repo_2)

## Check if it's a shallow clone
is_shallow(repo_2)

## End(Not run)

Check if object is a git_tag object

Description

Check if object is a git_tag object

Usage

is_tag(object)

Arguments

object

Check if object is a git_tag object

Value

TRUE if object is a git_tag, else FALSE

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Commit a text file
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Create tag
tag(repo, "Tagname", "Tag message")

is_tag(tags(repo)[[1]])
is_tag(last_commit(repo))

## End(Not run)

Check if object is S3 class git_tree

Description

Check if object is S3 class git_tree

Usage

is_tree(object)

Arguments

object

Check if object is S3 class git_tree

Value

TRUE if object is S3 class git_tree, else FALSE

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Commit a text file
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit_1 <- commit(repo, "First commit message")
tree_1 <- tree(commit_1)

## Check if tree
is_tree(commit_1)
is_tree(tree_1)

## End(Not run)

Last commit

Description

Get last commit in the current branch.

Usage

last_commit(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Examples

## Not run: 
## Initialize a repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Config user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Get last commit
last_commit(repo)
last_commit(path)

## Coerce the last commit to a data.frame
as.data.frame(last_commit(path), "data.frame")

## Summary of last commit in repository
summary(last_commit(repo))

## End(Not run)

Size in bytes of the contents of a blob

Description

Size in bytes of the contents of a blob

Usage

## S3 method for class 'git_blob'
length(x)

Arguments

x

The blob object

Value

a non-negative integer

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Commit a text file
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit_1 <- commit(repo, "First commit message")
blob_1 <- tree(commit_1)["example.txt"]

## Get length in size of bytes of the content of the blob
length(blob_1)

## End(Not run)

Number of files in git_diff object

Description

Number of files in git_diff object

Usage

## S3 method for class 'git_diff'
length(x)

Arguments

x

The git_diff object

Value

a non-negative integer

Number of entries in tree

Description

Number of entries in tree

Usage

## S3 method for class 'git_tree'
length(x)

Arguments

x

The tree object

Value

a non-negative integer or double (which will be rounded down)

Compile time options for libgit2.

Description

Compile time options for libgit2.

Usage

libgit2_features()

Value

A list with threads, https and ssh set to TRUE/FALSE.

Examples

libgit2_features()

Version of the libgit2 library

Description

Version of the libgit2 library that the bundled source code is based on

Usage

libgit2_version()

Value

A list with major, minor and rev

Examples

libgit2_version()

Lookup

Description

Lookup one object in a repository.

Usage

lookup(repo = ".", sha = NULL)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
sha

The identity of the object to lookup. Must be 4 to 40 characters long.

Value

a git_blob or git_commit or git_tag or git_tree object

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit_1 <- commit(repo, "First commit message")

## Create tag
tag(repo, "Tagname", "Tag message")

## First, get SHAs to lookup in the repository
sha_commit <- sha(commit_1)
sha_tree <- sha(tree(commit_1))
sha_blob <- sha(tree(commit_1)["example.txt"])
sha_tag <- sha(tags(repo)[[1]])

## SHAs
sha_commit
sha_tree
sha_blob
sha_tag

## Lookup objects
lookup(repo, sha_commit)
lookup(repo, sha_tree)
lookup(repo, sha_blob)
lookup(repo, sha_tag)

## Lookup objects, using only the first seven characters
lookup(repo, substr(sha_commit, 1, 7))
lookup(repo, substr(sha_tree, 1, 7))
lookup(repo, substr(sha_blob, 1, 7))
lookup(repo, substr(sha_tag, 1, 7))

## End(Not run)

Lookup the commit related to a git object

Description

Lookup the commit related to a git_reference, git_tag or git_branch object.

Usage

lookup_commit(object)

## S3 method for class 'git_branch'
lookup_commit(object)

## S3 method for class 'git_commit'
lookup_commit(object)

## S3 method for class 'git_tag'
lookup_commit(object)

## S3 method for class 'git_reference'
lookup_commit(object)

Arguments

object

a git object to get the related commit from.

Value

A git commit object.

Examples

## Not run: 
## Create a directory in tempdir
path <- tempfile(pattern="git2r-")
dir.create(path)

## Initialize a repository
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, con = file.path(path, "test.txt"))
add(repo, "test.txt")
commit(repo, "Commit message 1")

## Get the commit pointed to by the 'master' branch
lookup_commit(repository_head(repo))

## Create a tag
a_tag <- tag(repo, "Tagname", "Tag message")

## Get the commit pointed to by 'a_tag'
lookup_commit(a_tag)

## End(Not run)

List the contents of a tree object

Description

Traverse the entries in a tree and its subtrees. Akin to the 'git ls-tree' command.

Usage

ls_tree(tree = NULL, repo = ".", recursive = TRUE)

Arguments

tree

default (NULL) is the tree of the last commit in repo. Can also be a git_tree object or a character that identifies a tree in the repository (see ‘Examples’).
repo

never used if tree is a git_tree object. A git_repository object, or a path (default = '.') to a repository.
recursive

default is to recurse into sub-trees.

Value

A data.frame with the following columns:

mode

UNIX file attribute of the tree entry

type

type of object

sha

sha of the object

path

path relative to the root tree

name

filename of the tree entry

len

object size of blob (file) entries. NA for other objects.

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
dir.create(file.path(path, "subfolder"))
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create three files and commit
writeLines("First file",  file.path(path, "example-1.txt"))
writeLines("Second file", file.path(path, "subfolder/example-2.txt"))
writeLines("Third file",  file.path(path, "example-3.txt"))
add(repo, c("example-1.txt", "subfolder/example-2.txt", "example-3.txt"))
commit(repo, "Commit message")

## Traverse tree entries and its subtrees.
## Various approaches that give identical result.
ls_tree(tree = tree(last_commit(path)))
ls_tree(tree = tree(last_commit(repo)))
ls_tree(repo = path)
ls_tree(repo = repo)

## Skip content in subfolder
ls_tree(repo = repo, recursive = FALSE)

## Start in subfolder
ls_tree(tree = "HEAD:subfolder", repo = repo)

## End(Not run)

Find a merge base between two commits

Description

Find a merge base between two commits

Usage

merge_base(one = NULL, two = NULL)

Arguments

one

One of the commits
two

The other commit

Value

git_commit

Examples

## Not run: 
## Create a directory in tempdir
path <- tempfile(pattern="git2r-")
dir.create(path)

## Initialize a repository
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
writeLines("Master branch", file.path(path, "master_branch.txt"))
add(repo, "master_branch.txt")
commit_1 <- commit(repo, "Commit message 1")

## Create first branch, checkout, add file and commit
branch_1 <- branch_create(commit_1, "branch_1")
checkout(branch_1)
writeLines("Branch 1", file.path(path, "branch_1.txt"))
add(repo, "branch_1.txt")
commit_2 <- commit(repo, "Commit message branch_1")

## Create second branch, checkout, add file and commit
branch_2 <- branch_create(commit_1, "branch_2")
checkout(branch_2)
writeLines("Branch 2", file.path(path, "branch_2.txt"))
add(repo, "branch_2.txt")
commit_3 <- commit(repo, "Commit message branch_2")

## Check that merge base equals commit_1
stopifnot(identical(merge_base(commit_2, commit_3), commit_1))

## End(Not run)

Merge a branch into HEAD

Description

Merge a branch into HEAD

Usage

## S3 method for class 'git_branch'
merge(x, y = NULL, commit_on_success = TRUE, merger = NULL, fail = FALSE, ...)

## S3 method for class 'git_repository'
merge(x, y = NULL, commit_on_success = TRUE, merger = NULL, fail = FALSE, ...)

## S3 method for class 'character'
merge(
  x = ".",
  y = NULL,
  commit_on_success = TRUE,
  merger = NULL,
  fail = FALSE,
  ...
)

Arguments

x

A path (default '.') to a repository, or a git_repository object, or a git_branch.
y

If x is a git_repository, the name of the branch to merge into HEAD. Not used if x is a git_branch.
commit_on_success

If there are no conflicts written to the index, the merge commit will be committed. Default is TRUE.
merger

Who made the merge. The default (NULL) is to use default_signature for the repository.
fail

If a conflict occurs, exit immediately instead of attempting to continue resolving conflicts. Default is FALSE.
...

Additional arguments (unused).

Value

A list of class git_merge_result with entries:

up_to_date

TRUE if the merge is already up-to-date, else FALSE.

fast_forward

TRUE if a fast-forward merge, else FALSE.

conflicts

TRUE if the index contain entries representing file conflicts, else FALSE.

sha

If the merge created a merge commit, the sha of the merge commit. NA if no merge commit created.

Examples

## Not run: 
## Create a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)
config(repo, user.name="Alice", user.email = "[email protected]")

## Create a file, add and commit
writeLines("Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
           con = file.path(path, "test.txt"))
add(repo, "test.txt")
commit_1 <- commit(repo, "Commit message 1")

## Create first branch, checkout, add file and commit
checkout(repo, "branch1", create = TRUE)
writeLines("Branch 1", file.path(path, "branch-1.txt"))
add(repo, "branch-1.txt")
commit(repo, "Commit message branch 1")

## Create second branch, checkout, add file and commit
b_2 <- branch_create(commit_1, "branch2")
checkout(b_2)
writeLines("Branch 2", file.path(path, "branch-2.txt"))
add(repo, "branch-2.txt")
commit(repo, "Commit message branch 2")

## Make a change to 'test.txt'
writeLines(c("Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
             "eiusmod tempor incididunt ut labore et dolore magna aliqua."),
           con = file.path(path, "test.txt"))
add(repo, "test.txt")
commit(repo, "Second commit message branch 2")

## Checkout master
checkout(repo, "master", force = TRUE)

## Merge branch 1
merge(repo, "branch1")

## Merge branch 2
merge(repo, "branch2")

## Create third branch, checkout, change file and commit
checkout(repo, "branch3", create=TRUE)
writeLines(c("Lorem ipsum dolor amet sit, consectetur adipisicing elit, sed do",
             "eiusmod tempor incididunt ut labore et dolore magna aliqua."),
           con = file.path(path, "test.txt"))
add(repo, "test.txt")
commit(repo, "Commit message branch 3")

## Checkout master and create a change that creates a merge conflict
checkout(repo, "master", force=TRUE)
writeLines(c("Lorem ipsum dolor sit amet, adipisicing consectetur elit, sed do",
             "eiusmod tempor incididunt ut labore et dolore magna aliqua."),
           con = file.path(path, "test.txt"))
add(repo, "test.txt")
commit(repo, "Some commit message branch 1")

## Merge branch 3
merge(repo, "branch3")

## Check status; Expect to have one unstaged unmerged conflict.
status(repo)

## End(Not run)

Add note for a object

Description

Add note for a object

Usage

note_create(
  object = NULL,
  message = NULL,
  ref = NULL,
  author = NULL,
  committer = NULL,
  force = FALSE
)

Arguments

object

The object to annotate (git_blob, git_commit or git_tree).
message

Content of the note to add
ref

Canonical name of the reference to use. Default is note_default_ref.
author

Signature of the notes note author
committer

Signature of the notes note committer
force

Overwrite existing note. Default is FALSE

Value

git_note

Examples

## Not run: 
## Create and initialize a repository in a temporary directory
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit_1 <- commit(repo, "Commit message 1")

## Create another commit
writeLines(c("Hello world!",
             "HELLO WORLD!"),
           file.path(path, "example.txt"))
add(repo, "example.txt")
commit_2 <- commit(repo, "Commit message 2")

## Check that notes is an empty list
notes(repo)

## Create note in default namespace
note_create(commit_1, "Note-1")

## Create note in named (review) namespace
note_create(commit_1, "Note-2", ref="refs/notes/review")
note_create(commit_2, "Note-3", ref="review")

## Create note on blob and tree
note_create(tree(commit_1), "Note-4")
note_create(tree(commit_1)["example.txt"], "Note-5")

## End(Not run)

Default notes reference

Description

Get the default notes reference for a repository

Usage

note_default_ref(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

Character vector of length one with name of default notes reference

Examples

## Not run: 
## Create and initialize a repository in a temporary directory
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## View default notes reference
note_default_ref(repo)

## End(Not run)

Remove the note for an object

Description

Remove the note for an object

Usage

note_remove(note = NULL, author = NULL, committer = NULL)

Arguments

note

The note to remove
author

Signature of the notes commit author.
committer

Signature of the notes commit committer.

Value

invisible NULL

Examples

## Not run: 
## Create and initialize a repository in a temporary directory
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit_1 <- commit(repo, "Commit message 1")


## Create note in default namespace
note_1 <- note_create(commit_1, "Note-1")

## Create note in named (review) namespace
note_2 <- note_create(commit_1, "Note-2", ref="refs/notes/review")

## List notes in default namespace
notes(repo)

## List notes in 'review' namespace
notes(repo, "review")

## Remove notes
note_remove(note_1)
note_remove(note_2)

## List notes in default namespace
notes(repo)

## List notes in 'review' namespace
notes(repo, "review")

## End(Not run)

List notes

Description

List all the notes within a specified namespace.

Usage

notes(repo = ".", ref = NULL)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
ref

Reference to read from. Default (ref = NULL) is to call note_default_ref.

Value

list with git_note objects

Examples

## Not run: 
## Create and initialize a repository in a temporary directory
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit_1 <- commit(repo, "Commit message 1")

## Create another commit
writeLines(c("Hello world!",
             "HELLO WORLD!"),
           file.path(path, "example.txt"))
add(repo, "example.txt")
commit_2 <- commit(repo, "Commit message 2")

## Create note in default namespace
note_create(commit_1, "Note-1")
note_create(commit_1, "Note-2", force = TRUE)

## Create note in named (review) namespace
note_create(commit_1, "Note-3", ref="refs/notes/review")
note_create(commit_2, "Note-4", ref="review")

## Create note on blob and tree
note_create(tree(commit_1), "Note-5")
note_create(tree(commit_1)["example.txt"], "Note-6")

## List notes in default namespace
notes(repo)

## List notes in 'review' namespace
notes(repo, "review")

## End(Not run)

Blobs in the object database

Description

List all blobs reachable from the commits in the object database. For each commit, list blob's in the commit tree and sub-trees.

Usage

odb_blobs(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

A data.frame with the following columns:

sha

The sha of the blob

path

The path to the blob from the tree and sub-trees

name

The name of the blob from the tree that contains the blob

len

The length of the blob

commit

The sha of the commit

author

The author of the commit

when

The timestamp of the author signature in the commit

Note

A blob sha can have several entries

Examples

## Not run: 
## Create a directory in tempdir
path <- tempfile(pattern="git2r-")
dir.create(path)

## Initialize a repository
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "test.txt"))
add(repo, "test.txt")
commit(repo, "Commit message 1")

## Change file and commit
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path, "test.txt"))
add(repo, "test.txt")
commit(repo, "Commit message 2")

## Commit same content under different name in a sub-directory
dir.create(file.path(path, "sub-directory"))
file.copy(file.path(path, "test.txt"),
          file.path(path, "sub-directory", "copy.txt"))
add(repo, "sub-directory/copy.txt")
commit(repo, "Commit message 3")

## List blobs
odb_blobs(repo)

## End(Not run)

List all objects available in the database

Description

List all objects available in the database

Usage

odb_objects(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

A data.frame with the following columns:

sha

The sha of the object

type

The type of the object

len

The length of the object

Examples

## Not run: 
## Create a directory in tempdir
path <- tempfile(pattern="git2r-")
dir.create(path)

## Initialize a repository
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "test.txt"))
add(repo, "test.txt")
commit(repo, "Commit message 1")

## Create tag
tag(repo, "Tagname", "Tag message")

## List objects in repository
odb_objects(repo)

## End(Not run)

Parents

Description

Get parents of a commit.

Usage

parents(object = NULL)

Arguments

object

a git_commit object.

Value

list of git_commit objects

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
writeLines("First line.",
           file.path(path, "example.txt"))
add(repo, "example.txt")
commit_1 <- commit(repo, "First commit message")

## commit_1 has no parents
parents(commit_1)

## Update 'example.txt' and commit
writeLines(c("First line.", "Second line."),
           file.path(path, "example.txt"))
add(repo, "example.txt")
commit_2 <- commit(repo, "Second commit message")

## commit_2 has commit_1 as parent
parents(commit_2)

## End(Not run)

Plot commits over time

Description

Plot commits over time

Usage

## S3 method for class 'git_repository'
plot(
  x,
  breaks = c("month", "year", "quarter", "week", "day"),
  main = NULL,
  ...
)

Arguments

x

The repository to plot
breaks

Default is month. Change to year, quarter, week or day as necessary.
main

Default title for the plot is "Commits on repo:" and repository workdir basename. Supply a new title if you desire one.
...

Additional arguments affecting the plot

Examples

## Not run: 
## Initialize repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- clone("https://github.com/ropensci/git2r.git", path)

## Plot commits
plot(repo)

## End(Not run)

Print a reflog entry

Description

Print a reflog entry

Usage

## S3 method for class 'git_reflog_entry'
print(x, ...)

Arguments

x

The reflog entry
...

Unused

Value

None (invisible 'NULL').

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## View repository HEAD reflog
reflog(repo)

## End(Not run)

Pull

Description

Pull

Usage

pull(repo = ".", credentials = NULL, merger = NULL)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
credentials

The credentials for remote repository access. Default is NULL. To use and query an ssh-agent for the ssh key credentials, let this parameter be NULL (the default).
merger

Who made the merge, if the merge is non-fast forward merge that creates a merge commit. The default_signature for repo is used if this parameter is NULL.

Value

A list of class git_merge_result with entries:

up_to_date

TRUE if the merge is already up-to-date, else FALSE.

fast_forward

TRUE if a fast-forward merge, else FALSE.

conflicts

TRUE if the index contain entries representing file conflicts, else FALSE.

sha

If the merge created a merge commit, the sha of the merge commit. NA if no merge commit created.

Examples

## Not run: 
## Initialize repositories
path_bare <- tempfile(pattern="git2r-")
path_repo_1 <- tempfile(pattern="git2r-")
path_repo_2 <- tempfile(pattern="git2r-")
dir.create(path_bare)
dir.create(path_repo_1)
dir.create(path_repo_2)
repo_bare <- init(path_bare, bare = TRUE)
repo_1 <- clone(path_bare, path_repo_1)

## Config first user and commit a file
config(repo_1, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path_repo_1, "example.txt"))
add(repo_1, "example.txt")
commit(repo_1, "First commit message")

## Push commits from first repository to bare repository
## Adds an upstream tracking branch to branch 'master'
push(repo_1, "origin", "refs/heads/master")

## Clone to second repository
repo_2 <- clone(path_bare, path_repo_2)
config(repo_2, user.name = "Bob", user.email = "[email protected]")

## Change file and commit
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path_repo_1, "example.txt"))
add(repo_1, "example.txt")
commit(repo_1, "Second commit message")

## Push commits from first repository to bare repository
push(repo_1)

## Pull changes to repo_2
pull(repo_2)

## Change file again and commit. This time in repository 2
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad",
  "minim veniam, quis nostrud exercitation ullamco laboris nisi ut")
writeLines(lines, file.path(path_repo_2, "example.txt"))
add(repo_2, "example.txt")
commit(repo_2, "Third commit message")

## Push commits from second repository to bare repository
push(repo_2)

## Pull changes to repo_1
pull(repo_1)

## List commits in repositories
commits(repo_1)
commits(repo_2)
commits(repo_bare)

## End(Not run)

Punch card

Description

Punch card

Usage

punch_card(repo = ".", main = NULL, ...)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
main

Default title for the plot is "Punch card on repo:" and repository workdir basename. Supply a new title if you desire one.
...

Additional arguments affecting the plot

Value

invisible NULL

Examples

## Not run: 
## Initialize repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- clone("https://github.com/ropensci/git2r.git", path)

## Plot
punch_card(repo)

## End(Not run)

Push

Description

Push

Usage

push(
  object = ".",
  name = NULL,
  refspec = NULL,
  force = FALSE,
  credentials = NULL,
  set_upstream = FALSE
)

Arguments

object

path to repository, or a git_repository or git_branch.
name

The remote's name. Default is NULL.
refspec

The refspec to be pushed. Default is NULL.
force

Force your local revision to the remote repo. Use it with care. Default is FALSE.
credentials

The credentials for remote repository access. Default is NULL. To use and query an ssh-agent for the ssh key credentials, let this parameter be NULL (the default).
set_upstream

Set the current local branch to track the remote branch. Default is FALSE.

Value

invisible(NULL)

See Also

cred_user_pass, cred_ssh_key

Examples

## Not run: 
## Initialize two temporary repositories
path_bare <- tempfile(pattern="git2r-")
path_repo <- tempfile(pattern="git2r-")
dir.create(path_bare)
dir.create(path_repo)
repo_bare <- init(path_bare, bare = TRUE)

## Clone the bare repository. This creates remote-tracking
## branches for each branch in the cloned repository.
repo <- clone(path_bare, path_repo)

## Config user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path_repo, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Push commits from repository to bare repository
push(repo, "origin", "refs/heads/master")

## Now, unset the remote-tracking branch to NULL to demonstrate
## the 'set_upstream' argument. Then push with 'set_upstream = TRUE'
## to add the upstream tracking branch to branch 'master' again.
branch_get_upstream(repository_head(repo))
branch_set_upstream(repository_head(repo), NULL)
branch_get_upstream(repository_head(repo))
push(repo, "origin", "refs/heads/master", set_upstream = TRUE)
branch_get_upstream(repository_head(repo))

## Change file and commit
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path_repo, "example.txt"))
add(repo, "example.txt")
commit(repo, "Second commit message")

## Push commits from repository to bare repository
push(repo)

## List commits in repository and bare repository
commits(repo)
commits(repo_bare)

## End(Not run)

Get all references that can be found in a repository.

Description

Get all references that can be found in a repository.

Usage

references(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

Character vector with references

Examples

## Not run: 
## Initialize two temporary repositories
path_bare <- tempfile(pattern="git2r-")
path_repo <- tempfile(pattern="git2r-")
dir.create(path_bare)
dir.create(path_repo)
repo_bare <- init(path_bare, bare = TRUE)
repo <- clone(path_bare, path_repo)

## Config user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path_repo, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Push commits from repository to bare repository
## Adds an upstream tracking branch to branch 'master'
push(repo, "origin", "refs/heads/master")

## Add tag to HEAD
tag(repo, "v1.0", "First version")

## Create a note
note_create(commits(repo)[[1]], "My note")

## List all references in repository
references(repo)

## End(Not run)

List and view reflog information

Description

List and view reflog information

Usage

reflog(repo = ".", refname = "HEAD")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
refname

The name of the reference to list. 'HEAD' by default.

Value

S3 class git_reflog with git_reflog_entry objects.

Examples

## Not run: 
## Initialize a repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Config user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Write to a file and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Change file and commit
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "Second commit message")

## Change file again and commit
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad",
  "minim veniam, quis nostrud exercitation ullamco laboris nisi ut")
writeLines(lines, file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "Third commit message")

## View reflog
reflog(repo)

## End(Not run)

Add a remote to a repo

Description

Add a remote to a repo

Usage

remote_add(repo = ".", name = NULL, url = NULL)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
name

Short name of the remote repository
url

URL of the remote repository

Value

NULL, invisibly

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name="Alice", user.email="[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Add a remote
remote_add(repo, "playground", "https://example.org/git2r/playground")
remotes(repo)
remote_url(repo, "playground")

## Rename a remote
remote_rename(repo, "playground", "foobar")
remotes(repo)
remote_url(repo, "foobar")

## Set remote url
remote_set_url(repo, "foobar", "https://example.org/git2r/foobar")
remotes(repo)
remote_url(repo, "foobar")

## Remove a remote
remote_remove(repo, "foobar")
remotes(repo)

## End(Not run)

List references in a remote repository

Description

Displays references available in a remote repository along with the associated commit IDs. Akin to the 'git ls-remote' command.

Usage

remote_ls(name = NULL, repo = NULL, credentials = NULL)

Arguments

name

Character vector with the "remote" repository URL to query or the name of the remote if a repo argument is given.
repo

an optional repository object used if remotes are specified by name.
credentials

The credentials for remote repository access. Default is NULL. To use and query an ssh-agent for the ssh key credentials, let this parameter be NULL (the default).

Value

Character vector for each reference with the associated commit IDs.

Examples

## Not run: 
remote_ls("https://github.com/ropensci/git2r")

## End(Not run)

Remove a remote

Description

All remote-tracking branches and configuration settings for the remote will be removed.

Usage

remote_remove(repo = ".", name = NULL)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
name

The name of the remote to remove

Value

NULL, invisibly

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name="Alice", user.email="[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Add a remote
remote_add(repo, "playground", "https://example.org/git2r/playground")
remotes(repo)
remote_url(repo, "playground")

## Rename a remote
remote_rename(repo, "playground", "foobar")
remotes(repo)
remote_url(repo, "foobar")

## Set remote url
remote_set_url(repo, "foobar", "https://example.org/git2r/foobar")
remotes(repo)
remote_url(repo, "foobar")

## Remove a remote
remote_remove(repo, "foobar")
remotes(repo)

## End(Not run)

Rename a remote

Description

Rename a remote

Usage

remote_rename(repo = ".", oldname = NULL, newname = NULL)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
oldname

Old name of the remote
newname

New name of the remote

Value

NULL, invisibly

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name="Alice", user.email="[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Add a remote
remote_add(repo, "playground", "https://example.org/git2r/playground")
remotes(repo)
remote_url(repo, "playground")

## Rename a remote
remote_rename(repo, "playground", "foobar")
remotes(repo)
remote_url(repo, "foobar")

## Set remote url
remote_set_url(repo, "foobar", "https://example.org/git2r/foobar")
remotes(repo)
remote_url(repo, "foobar")

## Remove a remote
remote_remove(repo, "foobar")
remotes(repo)

## End(Not run)

Set the remote's url in the configuration

Description

This assumes the common case of a single-url remote and will otherwise raise an error.

Usage

remote_set_url(repo = ".", name = NULL, url = NULL)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
name

The name of the remote
url

The url to set

Value

NULL, invisibly

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name="Alice", user.email="[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Add a remote
remote_add(repo, "playground", "https://example.org/git2r/playground")
remotes(repo)
remote_url(repo, "playground")

## Rename a remote
remote_rename(repo, "playground", "foobar")
remotes(repo)
remote_url(repo, "foobar")

## Set remote url
remote_set_url(repo, "foobar", "https://example.org/git2r/foobar")
remotes(repo)
remote_url(repo, "foobar")

## Remove a remote
remote_remove(repo, "foobar")
remotes(repo)

## End(Not run)

Get the remote url for remotes in a repo

Description

Get the remote url for remotes in a repo

Usage

remote_url(repo = ".", remote = NULL)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
remote

Character vector with the remotes to get the url from. Default is the remotes of the repository.

Value

Character vector with remote_url for each of the remote

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name="Alice", user.email="[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Add a remote
remote_add(repo, "playground", "https://example.org/git2r/playground")
remotes(repo)
remote_url(repo, "playground")

## Rename a remote
remote_rename(repo, "playground", "foobar")
remotes(repo)
remote_url(repo, "foobar")

## Set remote url
remote_set_url(repo, "foobar", "https://example.org/git2r/foobar")
remotes(repo)
remote_url(repo, "foobar")

## Remove a remote
remote_remove(repo, "foobar")
remotes(repo)

## End(Not run)

Get the configured remotes for a repo

Description

Get the configured remotes for a repo

Usage

remotes(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

Character vector with remotes

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name="Alice", user.email="[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Add a remote
remote_add(repo, "playground", "https://example.org/git2r/playground")
remotes(repo)
remote_url(repo, "playground")

## Rename a remote
remote_rename(repo, "playground", "foobar")
remotes(repo)
remote_url(repo, "foobar")

## Set remote url
remote_set_url(repo, "foobar", "https://example.org/git2r/foobar")
remotes(repo)
remote_url(repo, "foobar")

## Remove a remote
remote_remove(repo, "foobar")
remotes(repo)

## End(Not run)

Open a repository

Description

Open a repository

Usage

repository(path = ".", discover = TRUE)

Arguments

path

A path to an existing local git repository.
discover

Discover repository from path. Default is TRUE.

Value

A git_repository object with entries:

path

Path to a git repository

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

# Configure a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
writeLines("Hello world!", file.path(path, "test-1.txt"))
add(repo, 'test-1.txt')
commit_1 <- commit(repo, "Commit message")

## Make one more commit
writeLines(c("Hello world!", "HELLO WORLD!"),
           file.path(path, "test-1.txt"))
add(repo, 'test-1.txt')
commit(repo, "Next commit message")

## Create one more file
writeLines("Hello world!",
           file.path(path, "test-2.txt"))

## Brief summary of repository
repo

## Summary of repository
summary(repo)

## Workdir of repository
workdir(repo)

## Check if repository is bare
is_bare(repo)

## Check if repository is empty
is_empty(repo)

## Check if repository is a shallow clone
is_shallow(repo)

## List all references in repository
references(repo)

## List all branches in repository
branches(repo)

## Get HEAD of repository
repository_head(repo)

## Check if HEAD is head
is_head(repository_head(repo))

## Check if HEAD is local
is_local(repository_head(repo))

## List all tags in repository
tags(repo)

## End(Not run)

Get HEAD for a repository

Description

Get HEAD for a repository

Usage

repository_head(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

NULL if unborn branch or not found. A git_branch if not a detached head. A git_commit if detached head

Examples

## Not run: 
## Create and initialize a repository in a temporary directory
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "Commit message")

## Get HEAD of repository
repository_head(repo)

## End(Not run)

Reset current HEAD to the specified state

Description

Reset current HEAD to the specified state

Usage

reset(object, reset_type = c("soft", "mixed", "hard"), path = NULL)

Arguments

object

Either a git_commit, a git_repository or a character vector. If object is a git_commit, HEAD is moved to the git_commit. If object is a git_repository, resets the index entries in the path argument to their state at HEAD. If object is a character vector with paths, resets the index entries in object to their state at HEAD if the current working directory is in a repository.
reset_type

If object is a 'git_commit', the kind of reset operation to perform. 'soft' means the HEAD will be moved to the commit. 'mixed' reset will trigger a 'soft' reset, plus the index will be replaced with the content of the commit tree. 'hard' reset will trigger a 'mixed' reset and the working directory will be replaced with the content of the index.
path

If object is a 'git_repository', resets the index entries for all paths to their state at HEAD.

Value

invisible NULL

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

# Configure a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
writeLines("Hello world!", file.path(path, "test-1.txt"))
add(repo, "test-1.txt")
commit_1 <- commit(repo, "Commit message")

## Change and stage the file
writeLines(c("Hello world!", "HELLO WORLD!"), file.path(path, "test-1.txt"))
add(repo, "test-1.txt")
status(repo)

## Unstage file
reset(repo, path = "test-1.txt")
status(repo)

## Make one more commit
add(repo, "test-1.txt")
commit(repo, "Next commit message")

## Create one more file
writeLines("Hello world!", file.path(path, "test-2.txt"))

## 'soft' reset to first commit and check status
reset(commit_1)
status(repo)

## 'mixed' reset to first commit and check status
commit(repo, "Next commit message")
reset(commit_1, "mixed")
status(repo)

## 'hard' reset to first commit and check status
add(repo, "test-1.txt")
commit(repo, "Next commit message")
reset(commit_1, "hard")
status(repo)

## End(Not run)

Revparse

Description

Find object specified by revision.

Usage

revparse_single(repo = ".", revision = NULL)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
revision

The revision string, see http://git-scm.com/docs/git-rev-parse.html#_specifying_revisions

Value

a git_commit or git_tag or git_tree object

Examples

## Not run: 
## Create a directory in tempdir
path <- tempfile(pattern="git2r-")
dir.create(path)

## Initialize a repository
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "test.txt"))
add(repo, "test.txt")
commit(repo, "First commit message")

# Change file and commit
lines <- c(
  "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
  "eiusmod tempor incididunt ut labore et dolore magna aliqua.")
writeLines(lines, file.path(path, "test.txt"))
add(repo, "test.txt")
commit(repo, "Second commit message")

revparse_single(repo, "HEAD^")
revparse_single(repo, "HEAD:test.txt")

## End(Not run)

Remove files from the working tree and from the index

Description

Remove files from the working tree and from the index

Usage

rm_file(repo = ".", path = NULL)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
path

character vector with filenames to remove. Only files known to Git are removed.

Value

invisible(NULL)

Examples

## Not run: 
## Initialize a repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file
writeLines("Hello world!", file.path(path, "file-to-remove.txt"))

## Add file to repository
add(repo, "file-to-remove.txt")
commit(repo, "First commit message")

## Remove file
rm_file(repo, "file-to-remove.txt")

## View status of repository
status(repo)

## End(Not run)

Get the SHA-1 of a git object

Description

Get the 40 character hexadecimal string of the SHA-1.

Usage

sha(object)

## S3 method for class 'git_blob'
sha(object)

## S3 method for class 'git_branch'
sha(object)

## S3 method for class 'git_commit'
sha(object)

## S3 method for class 'git_note'
sha(object)

## S3 method for class 'git_reference'
sha(object)

## S3 method for class 'git_reflog_entry'
sha(object)

## S3 method for class 'git_tag'
sha(object)

## S3 method for class 'git_tree'
sha(object)

## S3 method for class 'git_fetch_head'
sha(object)

## S3 method for class 'git_merge_result'
sha(object)

Arguments

object

a git object to get the SHA-1 from.

Value

The 40 character hexadecimal string of the SHA-1.

Examples

## Not run: 
## Create a directory in tempdir
path <- tempfile(pattern="git2r-")
dir.create(path)

## Initialize a repository
repo <- init(path)
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file, add and commit
lines <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do"
writeLines(lines, file.path(path, "test.txt"))
add(repo, "test.txt")
commit(repo, "Commit message 1")

## Get the SHA-1 of the last commit
sha(last_commit(repo))

## End(Not run)

Compose usual path to ssh keys

Description

This function provides a consistent means across OS-types to access the .ssh directory.

Usage

ssh_path(file = "")

Arguments

file

basename of file for which path is requested

Details

On Windows-based systems, path.expand("~") returns "C:/Users/username/Documents", whereas the usual path to the .ssh directory is "C:/Users/username".

On other operating systems, path.expand("~") returns the usual path to the .ssh directory.

Calling ssh_path() with no arguments will return the usual path to the .ssh directory.

Value

Full path to the file

Examples

ssh_path()
ssh_path("is_rsa.pub")

Set the SSL certificate-authority locations

Description

Set the SSL certificate-authority locations

Usage

ssl_cert_locations(filename = NULL, path = NULL)

Arguments

filename

Location of a file containing several certificates concatenated together. Default NULL.
path

Location of a directory holding several certificates, one per file. Default NULL.

Value

invisible(NULL)

Note

Either parameter may be 'NULL', but not both.

Stash

Description

Stash

Usage

stash(
  repo = ".",
  message = as.character(Sys.time()),
  index = FALSE,
  untracked = FALSE,
  ignored = FALSE,
  stasher = NULL
)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
message

Optional description. Defaults to current time.
index

All changes already added to the index are left intact in the working directory. Default is FALSE
untracked

All untracked files are also stashed and then cleaned up from the working directory. Default is FALSE
ignored

All ignored files are also stashed and then cleaned up from the working directory. Default is FALSE
stasher

Signature with stasher and time of stash

Value

invisible git_stash object if anything to stash else NULL

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

# Configure a user
config(repo, user.name = "Alice", user.email = "[email protected]")

# Create a file, add and commit
writeLines("Hello world!", file.path(path, "test.txt"))
add(repo, 'test.txt')
commit(repo, "Commit message")

# Change file
writeLines(c("Hello world!", "HELLO WORLD!"), file.path(path, "test.txt"))

# Check status of repository
status(repo)

# Create stash in repository
stash(repo)

# Check status of repository
status(repo)

# View stash
stash_list(repo)

## End(Not run)

Apply stash

Description

Apply a single stashed state from the stash list.

Usage

stash_apply(object = ".", index = 1)

Arguments

object

path to a repository, or a git_repository object, or the stash object to pop. Default is a path = '.' to a reposiory.
index

The index to the stash to apply. Only used when object is a path to a repository or a git_repository object. Default is index = 1.

Details

If local changes in the working directory conflict with changes in the stash then an error will be raised. In this case, the index will always remain unmodified and all files in the working directory will remain unmodified. However, if you are restoring untracked files or ignored files and there is a conflict when applying the modified files, then those files will remain in the working directory.

Value

invisible NULL

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

# Configure a user
config(repo, user.name = "Alice", user.email = "[email protected]")

# Create a file, add and commit
writeLines("Hello world!", file.path(path, "test.txt"))
add(repo, 'test.txt')
commit(repo, "Commit message")

# Change file
writeLines(c("Hello world!", "HELLO WORLD!"), file.path(path, "test.txt"))

# Create stash in repository
stash(repo)

# Change file
writeLines(c("Hello world!", "HeLlO wOrLd!"), file.path(path, "test.txt"))

# Create stash in repository
stash(repo)

# View stashes
stash_list(repo)

# Read file
readLines(file.path(path, "test.txt"))

# Apply latest git_stash object in repository
stash_apply(stash_list(repo)[[1]])

# Read file
readLines(file.path(path, "test.txt"))

# View stashes
stash_list(repo)

## End(Not run)

Drop stash

Description

Drop stash

Usage

stash_drop(object = ".", index = 1)

Arguments

object

path to a repository, or a git_repository object, or the stash object to drop. Default is a path = '.' to a reposiory.
index

The index to the stash to drop. Only used when object is a path to a repository or a git_repository object. Default is index = 1.

Value

invisible NULL

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

# Configure a user
config(repo, user.name = "Alice", user.email = "[email protected]")

# Create a file, add and commit
writeLines("Hello world!", file.path(path, "test.txt"))
add(repo, 'test.txt')
commit(repo, "Commit message")

# Change file
writeLines(c("Hello world!", "HELLO WORLD!"), file.path(path, "test.txt"))

# Create stash in repository
stash(repo)

# Change file
writeLines(c("Hello world!", "HeLlO wOrLd!"), file.path(path, "test.txt"))

# Create stash in repository
stash(repo)

# View stashes
stash_list(repo)

# Drop git_stash object in repository
stash_drop(stash_list(repo)[[1]])

## Drop stash using an index to stash
stash_drop(repo, 1)

# View stashes
stash_list(repo)

## End(Not run)

List stashes in repository

Description

List stashes in repository

Usage

stash_list(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

list of stashes in repository

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

# Configure a user
config(repo, user.name = "Alice", user.email = "[email protected]")

# Create a file, add and commit
writeLines("Hello world!", file.path(path, "test-1.txt"))
add(repo, 'test-1.txt')
commit(repo, "Commit message")

# Make one more commit
writeLines(c("Hello world!", "HELLO WORLD!"), file.path(path, "test-1.txt"))
add(repo, 'test-1.txt')
commit(repo, "Next commit message")

# Create one more file
writeLines("Hello world!", file.path(path, "test-2.txt"))

# Check that there are no stashes
stash_list(repo)

# Stash
stash(repo)

# Only untracked changes, therefore no stashes
stash_list(repo)

# Stash and include untracked changes
stash(repo, "Stash message", untracked=TRUE)

# View stash
stash_list(repo)

## End(Not run)

Pop stash

Description

Apply a single stashed state from the stash list and remove it from the list if successful.

Usage

stash_pop(object = ".", index = 1)

Arguments

object

path to a repository, or a git_repository object, or the stash object to pop. Default is a path = '.' to a reposiory.
index

The index to the stash to pop. Only used when object is a path to a repository or a git_repository object. Default is index = 1.

Value

invisible NULL

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

# Configure a user
config(repo, user.name = "Alice", user.email = "[email protected]")

# Create a file, add and commit
writeLines("Hello world!", file.path(path, "test.txt"))
add(repo, 'test.txt')
commit(repo, "Commit message")

# Change file
writeLines(c("Hello world!", "HELLO WORLD!"), file.path(path, "test.txt"))

# Create stash in repository
stash(repo)

# Change file
writeLines(c("Hello world!", "HeLlO wOrLd!"), file.path(path, "test.txt"))

# Create stash in repository
stash(repo)

# View stashes
stash_list(repo)

# Read file
readLines(file.path(path, "test.txt"))

# Pop latest git_stash object in repository
stash_pop(stash_list(repo)[[1]])

# Read file
readLines(file.path(path, "test.txt"))

# View stashes
stash_list(repo)

## End(Not run)

Status

Description

Display state of the repository working directory and the staging area.

Usage

status(
  repo = ".",
  staged = TRUE,
  unstaged = TRUE,
  untracked = TRUE,
  ignored = FALSE,
  all_untracked = FALSE
)

Arguments

repo

a path to a repository or a git_repository object. Default is '.'
staged

Include staged files. Default TRUE.
unstaged

Include unstaged files. Default TRUE.
untracked

Include untracked files and directories. Default TRUE.
ignored

Include ignored files. Default FALSE.
all_untracked

Shows individual files in untracked directories if untracked is TRUE.

Value

git_status with repository status

Examples

## Not run: 
## Initialize a repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Config user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file
writeLines("Hello world!", file.path(path, "test.txt"))

## Check status; untracked file
status(repo)

## Add file
add(repo, "test.txt")

## Check status; staged file
status(repo)

## Commit
commit(repo, "First commit message")

## Check status; clean
status(repo)

## Change the file
writeLines(c("Hello again!", "Here is a second line", "And a third"),
           file.path(path, "test.txt"))

## Check status; unstaged file
status(repo)

## Add file and commit
add(repo, "test.txt")
commit(repo, "Second commit message")

## Check status; clean
status(repo)

## End(Not run)

Summary of repository

Description

Summary of repository

Usage

## S3 method for class 'git_repository'
summary(object, ...)

Arguments

object

The repository object
...

Additional arguments affecting the summary produced.

Value

None (invisible 'NULL').

Examples

## Not run: 
## Initialize a repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Config user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Create a file
writeLines("Hello world!", file.path(path, "test.txt"))
summary(repo)

## Add file
add(repo, "test.txt")
summary(repo)

## Commit
commit(repo, "First commit message")
summary(repo)

## Change the file
writeLines(c("Hello again!", "Here is a second line", "And a third"),
           file.path(path, "test.txt"))
summary(repo)

## Add file and commit
add(repo, "test.txt")
commit(repo, "Second commit message")
summary(repo)

## End(Not run)

Summary of a stash

Description

Summary of a stash

Usage

## S3 method for class 'git_stash'
summary(object, ...)

Arguments

object

The stash object
...

Additional arguments affecting the summary produced.

Value

None (invisible 'NULL').

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

# Configure a user
config(repo, user.name = "Alice", user.email = "[email protected]")

# Create a file, add and commit
writeLines("Hello world!", file.path(path, "test.txt"))
add(repo, 'test.txt')
commit(repo, "Commit message")

# Change file
writeLines(c("Hello world!", "HELLO WORLD!"), file.path(path, "test.txt"))

# Create stash in repository
stash(repo, "Stash message")

# View summary of stash
summary(stash_list(repo)[[1]])

## End(Not run)

Summary of tree

Description

Summary of tree

Usage

## S3 method for class 'git_tree'
summary(object, ...)

Arguments

object

The tree object
...

Additional arguments affecting the summary produced.

Value

None (invisible 'NULL').

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

summary(tree(last_commit(repo)))

## End(Not run)

Create tag targeting HEAD commit in repository

Description

Create tag targeting HEAD commit in repository

Usage

tag(
  object = ".",
  name = NULL,
  message = NULL,
  session = FALSE,
  tagger = NULL,
  force = FALSE
)

Arguments

object

The repository object.
name

Name for the tag.
message

The tag message. Specify a tag message to create an annotated tag. A lightweight tag is created if the message parameter is NULL.
session

Add sessionInfo to tag message. Default is FALSE.
tagger

The tagger (author) of the tag
force

Overwrite existing tag. Default = FALSE

Value

invisible(git_tag) object

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Commit a text file
filename <- file.path(path, "example.txt")
writeLines("Hello world!", filename)
add(repo, "example.txt")
commit(repo, "First commit message")

## Create an annotated tag
tag(repo, "v1.0", "Tag message")

## List tags
tags(repo)

## Make a change to the text file and commit.
writeLines(c("Hello world!", "HELLO WORLD!"), filename)
add(repo, "example.txt")
commit(repo, "Second commit message")

## Create a lightweight tag
tag(repo, "v2.0")

## List tags
tags(repo)

## End(Not run)

Delete an existing tag reference

Description

Delete an existing tag reference

Usage

tag_delete(object = ".", name = NULL)

Arguments

object

Can be either the path (default is ".") to a repository, or a git_repository object, or a git_tag object. or the tag name.
name

If the object argument is a path to a repository or a git_repository, the name of the tag to delete.

Value

invisible(NULL)

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Commit a text file
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Create two tags
tag(repo, "Tag1", "Tag message 1")
t2 <- tag(repo, "Tag2", "Tag message 2")

## List the two tags in the repository
tags(repo)

## Delete the two tags in the repository
tag_delete(repo, "Tag1")
tag_delete(t2)

## Show the empty list with tags in the repository
tags(repo)

## End(Not run)

Tags

Description

Tags

Usage

tags(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

list of tags in repository

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a user
config(repo, user.name = "Alice", user.email = "[email protected]")

## Commit a text file
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Create tag
tag(repo, "Tagname", "Tag message")

## List tags
tags(repo)

## End(Not run)

Tree

Description

Get the tree pointed to by a commit or stash.

Usage

tree(object = NULL)

Arguments

object

the commit or stash object

Value

A S3 class git_tree object

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a first user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

tree(last_commit(repo))

## End(Not run)

When

Description

Help method to extract the time as a character string from a git_commit, git_signature, git_tag and git_time object.

Usage

when(object, tz = "GMT", origin = "1970-01-01", usetz = TRUE)

Arguments

object

the object to extract the time slot from.
tz

a character string. The time zone specification to be used for the conversion, if one is required. System-specific (see time zones), but "" is the current time zone, and "GMT" is UTC (Universal Time, Coordinated). Invalid values are most commonly treated as UTC, on some platforms with a warning.
origin

a date-time object, or something which can be coerced by as.POSIXct(tz = "GMT") to such an object. Optional since R 4.3.0, where the equivalent of "1970-01-01" is used.
usetz

logical. Should the time zone abbreviation be appended to the output? This is used in printing times, and more reliable than using "%Z".

Value

A character vector of length one.

See Also

git_time

Examples

## Not run: 
## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
repo <- init(path)

## Create a first user and commit a file
config(repo, user.name = "Alice", user.email = "[email protected]")
writeLines("Hello world!", file.path(path, "example.txt"))
add(repo, "example.txt")
commit(repo, "First commit message")

## Create tag
tag(repo, "Tagname", "Tag message")

when(commits(repo)[[1]])
when(tags(repo)[[1]])
when(tags(repo)[[1]], tz = Sys.timezone())

## End(Not run)

Workdir of repository

Description

Workdir of repository

Usage

workdir(repo = ".")

Arguments

repo

a path to a repository or a git_repository object. Default is '.'

Value

Character vector with the path of the workdir. If the repository is bare, NULL will be returned.

Examples

## Not run: 
## Create a directory in tempdir
path <- tempfile(pattern="git2r-")
dir.create(path)

## Initialize a repository
repo <- init(path)

## Get the path of the workdir for repository
workdir(repo)

## End(Not run)