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 directories for repositories in tempdir
> 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)
> 
> ## Create bare repository
> bare_repo <- init(path_bare, bare = TRUE)
> 
> ## Clone to repo 1
> repo_1 <- clone(path_bare, path_repo_1)
cloning into 'D:\temp\Rtmp4Em1ah\git2r-18e2420f33943'...
> config(repo_1, user.name = "Alice", user.email = "alice@example.org")
> 
> ## Add changes to repo 1 and push to bare
> writeLines("Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do",
+            con = file.path(path_repo_1, "test-1.txt"))
> add(repo_1, "test-1.txt")
> commit_1 <- commit(repo_1, "First commit message")
> branch_name <- branches(repo_1)[[1]]$name
> push(repo_1, "origin", paste0("refs/heads/", branch_name))
> 
> ## Clone to repo 2
> repo_2 <- clone(path_bare, path_repo_2)
cloning into 'D:\temp\Rtmp4Em1ah\git2r-18e2442d848fe'...
> config(repo_2, user.name = "Bob", user.email = "bob@example.org")
> 
> ## Add more changes to repo 1 and push to bare
> 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_repo_1, "test-1.txt"))
> add(repo_1, "test-1.txt")
> commit_2 <- commit(repo_1, "Second commit message")
> push(repo_1, "origin", paste0("refs/heads/", branch_name))
> 
> ## Add changes to repo 2 and push to bare
> writeLines(
+     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"),
+     con = file.path(path_repo_2, "test-1.txt"))
> add(repo_2, "test-1.txt")
> commit_3 <- commit(repo_2, "Third commit message")
> 
> ## We are behind, so this should fail
> tools::assertError(push(repo_2))
> 
> ## Push with force = TRUE
> push(repo_2, force = TRUE)
> 
> ## Check commits
> stopifnot(identical(length(commits(bare_repo)), 2L))
> stopifnot(identical(sha(commits(repo_2)[[1]]), sha(commits(bare_repo)[[1]])))
> stopifnot(identical(sha(commits(repo_2)[[2]]), sha(commits(bare_repo)[[2]])))
> 
> ## Cleanup
> unlink(path_bare, recursive = TRUE)
> unlink(path_repo_1, recursive = TRUE)
> unlink(path_repo_2, recursive = TRUE)
> 
> proc.time()
   user  system elapsed 
   0.15    0.17    0.31