R Under development (unstable) (2023-11-25 r85635 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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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

> 
> 
> ## 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 = "alice@example.org")
> 
> ## 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")
[559981c] 2023-11-26: Commit message
> 
> ## Traverse tree entries and its subtrees.
> ## Various approaches that give identical result.
> stopifnot(identical(ls_tree(tree = tree(last_commit(path))),
+                     ls_tree(tree = tree(last_commit(repo)))))
> stopifnot(identical(ls_tree(repo = path), ls_tree(repo = repo)))
> 
> ## ls_tree(repo = repo) should match `git ls-tree -lr HEAD`
> ls_tree_result <- ls_tree(repo = repo)
> stopifnot(identical(ls_tree_result$name,
+                     c("example-1.txt", "example-3.txt", "example-2.txt")))
> 
> # Argument `tree` can be a  'character that identifies a tree in the repository'
> ls_tree(tree = tree(last_commit(path))$sha, repo = repo)
    mode type                                      sha       path          name
1 100644 blob 4ef78b159f921a9b82457084dd837d4bbd874e50            example-1.txt
2 100644 blob 1d778cd00040ab2ecd483e3a9013b2d5cca5764d            example-3.txt
3 100644 blob 85ded04863858cb7e99523989aca2384922e9f03 subfolder/ example-2.txt
  len
1  12
2  12
3  13
> 
> ## Skip content in subfolder
> ls_tree_toplevel <- ls_tree(repo = repo, recursive = FALSE)
> stopifnot(nrow(ls_tree_toplevel) == 3)
> stopifnot(identical(ls_tree_toplevel$name,
+                     c("example-1.txt", "example-3.txt", "subfolder")))
> 
> ## Start in subfolder
> ls_tree_subfolder <- ls_tree(tree = "HEAD:subfolder", repo = repo)
> stopifnot(nrow(ls_tree_subfolder) == 1)
> stopifnot(identical(ls_tree_subfolder$name, "example-2.txt"))
> 
> ## Cleanup
> unlink(path, recursive = TRUE)
> 
> proc.time()
   user  system elapsed 
   0.21    0.04    0.25