R Under development (unstable) (2023-11-25 r85635 ucrt) -- "Unsuffered Consequences"
Copyright (C) 2023 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> ## 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)
> config(repo, user.name = "Alice", user.email = "alice@example.org")
> 
> ## Create a file and commit
> writeLines("Hello world!", file.path(path, "test.txt"))
> add(repo, "test.txt")
> commit_1 <- commit(repo, "First commit message")
> tag_1 <- tag(repo, "Tagname1", "Tag message 1")
> 
> ## Change file and commit
> writeLines(c("Hello world!", "HELLO WORLD!"),
+            file.path(path, "test.txt"))
> add(repo, "test.txt")
> commit_2 <- commit(repo, "Second commit message")
> tag_2 <- tag(repo, "Tagname2", "Tag message 2")
> 
> ## Check ahead behind
> stopifnot(identical(ahead_behind(commit_1, commit_2), c(0L, 1L)))
> stopifnot(identical(ahead_behind(tag_1, tag_2), c(0L, 1L)))
> stopifnot(identical(ahead_behind(tag_2, tag_1), c(1L, 0L)))
> stopifnot(identical(ahead_behind(commit_1, branches(repo)[[1]]), c(0L, 1L)))
> stopifnot(identical(ahead_behind(branches(repo)[[1]], commit_1), c(1L, 0L)))
> 
> ## Cleanup
> unlink(path, recursive = TRUE)
> 
> proc.time()
   user  system elapsed 
   0.12    0.10    0.21