R Under development (unstable) (2023-11-25 r85635 ucrt) -- "Unsuffered Consequences"
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> ## git2r, R bindings to the libgit2 library.
> ## Copyright (C) 2013-2023 The git2r contributors
> ##
> ## This program is free software; you can redistribute it and/or modify
> ## it under the terms of the GNU General Public License, version 2,
> ## as published by the Free Software Foundation.
> ##
> ## git2r is distributed in the hope that it will be useful,
> ## but WITHOUT ANY WARRANTY; without even the implied warranty of
> ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> ## GNU General Public License for more details.
> ##
> ## You should have received a copy of the GNU General Public License along
> ## with this program; if not, write to the Free Software Foundation, Inc.,
> ## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> 
> library(git2r)
> 
> ## For debugging
> sessionInfo()
R Under development (unstable) (2023-11-25 r85635 ucrt)
Platform: x86_64-w64-mingw32/x64
Running under: Windows Server 2022 x64 (build 20348)

Matrix products: default


locale:
[1] LC_COLLATE=C                 LC_CTYPE=German_Germany.utf8
[3] LC_MONETARY=C                LC_NUMERIC=C                
[5] LC_TIME=C                   

time zone: Europe/Berlin
tzcode source: internal

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] git2r_0.33.0

loaded via a namespace (and not attached):
[1] compiler_4.4.0
> libgit2_version()
$major
[1] 1

$minor
[1] 7

$rev
[1] 1

> libgit2_features()
$threads
[1] TRUE

$https
[1] TRUE

$ssh
[1] FALSE

> 
> 
> ## Create a directory in tempdir
> path <- tempfile(pattern = "git2r-")
> dir.create(path)
> 
> ## Initialize a repository
> repo <- init(path, branch = "main")
> config(repo, user.name = "Alice", user.email = "alice@example.org")
> 
> ## Create first commit
> writeLines("Hello world!", file.path(path, "test.txt"))
> add(repo, "test.txt")
> commit_1 <- commit(repo, "First commit message")
> 
> ## Edit file and checkout
> writeLines(c("Hello world!", "Hello world!"), file.path(path, "test.txt"))
> status_exp_1 <- structure(list(staged = structure(list(),
+                                    .Names = character(0)),
+                                unstaged = structure(list(modified = "test.txt"),
+                                    .Names = "modified"),
+                                untracked = structure(list(),
+                                    .Names = character(0))),
+                           .Names = c("staged", "unstaged", "untracked"),
+                           class = "git_status")
> status_obs_1 <- status(repo)
> str(status_exp_1)
List of 3
 $ staged   : Named list()
 $ unstaged :List of 1
  ..$ modified: chr "test.txt"
 $ untracked: Named list()
 - attr(*, "class")= chr "git_status"
> str(status_obs_1)
List of 3
 $ staged   : Named list()
 $ unstaged :List of 1
  ..$ modified: chr "test.txt"
 $ untracked: Named list()
 - attr(*, "class")= chr "git_status"
> stopifnot(identical(status_obs_1, status_exp_1))
> checkout(repo, path = "test.txt")
> status_exp_2 <- structure(list(staged = structure(list(),
+                                    .Names = character(0)),
+                                unstaged = structure(list(),
+                                    .Names = character(0)),
+                                untracked = structure(list(),
+                                    .Names = character(0))),
+                           .Names = c("staged", "unstaged", "untracked"),
+                           class = "git_status")
> status_obs_2 <- status(repo)
> str(status_exp_2)
List of 3
 $ staged   : Named list()
 $ unstaged : Named list()
 $ untracked: Named list()
 - attr(*, "class")= chr "git_status"
> str(status_obs_2)
List of 3
 $ staged   : Named list()
 $ unstaged : Named list()
 $ untracked: Named list()
 - attr(*, "class")= chr "git_status"
> stopifnot(identical(status_obs_2, status_exp_2))
> 
> ## Create second commit
> writeLines(c("Hello world!", "HELLO WORLD!"), file.path(path, "test.txt"))
> add(repo, "test.txt")
> commit_2 <- commit(repo, "Second commit message")
> tag(repo, "commit_2", "Tag message")
> 
> ## Create third commit
> writeLines(c("Hello world!", "HELLO WORLD!", "HeLlO wOrLd!"),
+            file.path(path, "test.txt"))
> add(repo, "test.txt")
> commit_3 <- commit(repo, "Third commit message")
> 
> ## Check HEAD
> stopifnot(identical(is_detached(repo), FALSE))
> stopifnot(identical(repository_head(repo)$name, "main"))
> 
> ## Check show and summary
> repo
Local:    main D:/temp/RtmpQNXgzW/git2r-23b0024442642
Head:     [a78b087] 2023-11-26: Third commit message
> summary(repo)
Local:    main D:/temp/RtmpQNXgzW/git2r-23b0024442642
Head:     [a78b087] 2023-11-26: Third commit message

Branches:        1
Tags:            1
Commits:         3
Contributors:    1
Stashes:         0
Ignored files:   0
Untracked files: 0
Unstaged files:  0
Staged files:    0

Latest commits:
[a78b087] 2023-11-26: Third commit message
[211f7df] 2023-11-26: Second commit message
[317c11b] 2023-11-26: First commit message
> 
> ## Checkout first commit
> checkout(commit_1, TRUE)
> stopifnot(identical(is_detached(repo), TRUE))
> stopifnot(identical(repository_head(repo), commit_1))
> stopifnot(identical(readLines(file.path(path, "test.txt")), "Hello world!"))
> 
> ## Check show and summary
> repo
Local:    (detached) D:/temp/RtmpQNXgzW/git2r-23b0024442642
Head:     [317c11b] 2023-11-26: First commit message
> summary(repo)
Local:    (detached) D:/temp/RtmpQNXgzW/git2r-23b0024442642
Head:     [317c11b] 2023-11-26: First commit message

Branches:        1
Tags:            1
Commits:         1
Contributors:    1
Stashes:         0
Ignored files:   0
Untracked files: 0
Unstaged files:  0
Staged files:    0

Latest commits:
[317c11b] 2023-11-26: First commit message
> 
> ## Checkout tag
> checkout(tags(repo)[[1]], TRUE)
> stopifnot(identical(is_detached(repo), TRUE))
> stopifnot(identical(readLines(file.path(path, "test.txt")),
+                     c("Hello world!", "HELLO WORLD!")))
> 
> ## Check is_detached with missing repo argument
> wd <- setwd(path)
> stopifnot(identical(is_detached(), TRUE))
> if (!is.null(wd))
+     setwd(wd)
> 
> ## Cleanup
> unlink(path, recursive = TRUE)
> 
> proc.time()
   user  system elapsed 
   0.20    0.09    0.29