A new helper function, `write_worktree_linking_files()`, centralizes
the logic for computing and writing either relative or absolute
paths, based on the provided configuration. This function accepts
`strbuf` pointers to both the worktree’s `.git` link and the
repository’s `gitdir`, and then writes the appropriate path to each.
The `relativeWorktrees` extension is automatically set when a worktree
is linked with relative paths.
Signed-off-by: Caleb White <cdwhite3@xxxxx>
---
worktree.c | 36 ++++++++++++++++++++++++++++++++++++
worktree.h | 14 ++++++++++++++
2 files changed, 50 insertions(+)
diff --git a/worktree.c b/worktree.c
index 9346d51c438cbd029e9e57591edd8c9f30cc7638..ab6f1e036fa019285a1a5152decb9aed5202909f 100644
--- a/worktree.c
+++ b/worktree.c
@@ -1032,3 +1032,39 @@ int init_worktree_config(struct repository *r)
free(main_worktree_file);
return res;
}
+
+void write_worktree_linking_files(struct strbuf dotgit,
+ struct strbuf gitdir,
+ int use_relative_paths)
+{
+ struct strbuf path = STRBUF_INIT;
+ struct strbuf repo = STRBUF_INIT;
+ struct strbuf tmp = STRBUF_INIT;
+
+ strbuf_addbuf(&path, &dotgit);
+ strbuf_strip_suffix(&path, "/.git");
+ strbuf_realpath(&path, path.buf, 1);
+ strbuf_addbuf(&repo, &gitdir);
+ strbuf_strip_suffix(&repo, "/gitdir");
+ strbuf_realpath(&repo, repo.buf, 1);
+
+ if (use_relative_paths && !the_repository->repository_format_relative_worktrees) {
+ if (upgrade_repository_format(1) < 0)
+ die(_("unable to upgrade repository format to support relative worktrees"));
+ if (git_config_set_gently("extensions.relativeWorktrees", "true"))
+ die(_("unable to set extensions.relativeWorktrees setting"));
+ the_repository->repository_format_relative_worktrees = 1;
+ }
+
+ if (use_relative_paths) {
+ write_file(gitdir.buf, "%s/.git", relative_path(path.buf, repo.buf, &tmp));
+ write_file(dotgit.buf, "gitdir: %s", relative_path(repo.buf, path.buf, &tmp));
+ } else {
+ write_file(gitdir.buf, "%s/.git", path.buf);
+ write_file(dotgit.buf, "gitdir: %s", repo.buf);
+ }
+
+ strbuf_release(&path);
+ strbuf_release(&repo);
+ strbuf_release(&tmp);
+}
diff --git a/worktree.h b/worktree.h
index e96118621638667d87c5d7e0452ed10bd1ddf606..4786aa545ca1fa12bb16a55ddf5a59c06503b2c5 100644
--- a/worktree.h
+++ b/worktree.h
@@ -215,4 +215,18 @@ void strbuf_worktree_ref(const struct worktree *wt,
*/
int init_worktree_config(struct repository *r);
+/**
+ * Write the .git file and gitdir file that links the worktree to the repository.
+ *
+ * The `dotgit` parameter is the path to the worktree's .git file, and `gitdir`
+ * is the path to the repository's `gitdir` file.
+ *
+ * Example
+ * dotgit: "/path/to/foo/.git"
+ * gitdir: "/path/to/repo/worktrees/foo/gitdir"
+ */
+void write_worktree_linking_files(struct strbuf dotgit,
+ struct strbuf gitdir,
+ int use_relative_paths);
+
#endif
--
2.47.0
