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-rw-r--r--cache.h15
-rw-r--r--config.c10
-rw-r--r--setup.c17
3 files changed, 26 insertions, 16 deletions
diff --git a/cache.h b/cache.h
index 160ff81..82f39f7 100644
--- a/cache.h
+++ b/cache.h
@@ -525,12 +525,15 @@ extern void set_git_work_tree(const char *tree);
extern void setup_work_tree(void);
/*
- * Find GIT_DIR of the repository that contains the current working directory,
- * without changing the working directory or other global state. The result is
- * appended to gitdir. The return value is either NULL if no repository was
- * found, or pointing to the path inside gitdir's buffer.
- */
-extern const char *discover_git_directory(struct strbuf *gitdir);
+ * Find the commondir and gitdir of the repository that contains the current
+ * working directory, without changing the working directory or other global
+ * state. The result is appended to commondir and gitdir. If the discovered
+ * gitdir does not correspond to a worktree, then 'commondir' and 'gitdir' will
+ * both have the same result appended to the buffer. The return value is
+ * either 0 upon success and non-zero if no repository was found.
+ */
+extern int discover_git_directory(struct strbuf *commondir,
+ struct strbuf *gitdir);
extern const char *setup_git_directory_gently(int *);
extern const char *setup_git_directory(void);
extern char *prefix_path(const char *prefix, int len, const char *path);
diff --git a/config.c b/config.c
index eec7613..e8dbf9e 100644
--- a/config.c
+++ b/config.c
@@ -1639,7 +1639,8 @@ static void configset_iter(struct config_set *cs, config_fn_t fn, void *data)
void read_early_config(config_fn_t cb, void *data)
{
struct config_options opts = {0};
- struct strbuf buf = STRBUF_INIT;
+ struct strbuf commondir = STRBUF_INIT;
+ struct strbuf gitdir = STRBUF_INIT;
opts.respect_includes = 1;
@@ -1653,12 +1654,13 @@ void read_early_config(config_fn_t cb, void *data)
* notably, the current working directory is still the same after the
* call).
*/
- else if (discover_git_directory(&buf))
- opts.git_dir = buf.buf;
+ else if (!discover_git_directory(&commondir, &gitdir))
+ opts.git_dir = gitdir.buf;
git_config_with_options(cb, data, NULL, &opts);
- strbuf_release(&buf);
+ strbuf_release(&commondir);
+ strbuf_release(&gitdir);
}
static void git_config_check_init(void);
diff --git a/setup.c b/setup.c
index c45443f..4e38cf2 100644
--- a/setup.c
+++ b/setup.c
@@ -941,19 +941,21 @@ static enum discovery_result setup_git_directory_gently_1(struct strbuf *dir,
}
}
-const char *discover_git_directory(struct strbuf *gitdir)
+int discover_git_directory(struct strbuf *commondir,
+ struct strbuf *gitdir)
{
struct strbuf dir = STRBUF_INIT, err = STRBUF_INIT;
size_t gitdir_offset = gitdir->len, cwd_len;
+ size_t commondir_offset = commondir->len;
struct repository_format candidate;
if (strbuf_getcwd(&dir))
- return NULL;
+ return -1;
cwd_len = dir.len;
if (setup_git_directory_gently_1(&dir, gitdir, 0) <= 0) {
strbuf_release(&dir);
- return NULL;
+ return -1;
}
/*
@@ -969,8 +971,10 @@ const char *discover_git_directory(struct strbuf *gitdir)
strbuf_insert(gitdir, gitdir_offset, dir.buf, dir.len);
}
+ get_common_dir(commondir, gitdir->buf + gitdir_offset);
+
strbuf_reset(&dir);
- strbuf_addf(&dir, "%s/config", gitdir->buf + gitdir_offset);
+ strbuf_addf(&dir, "%s/config", commondir->buf + commondir_offset);
read_repository_format(&candidate, dir.buf);
strbuf_release(&dir);
@@ -978,11 +982,12 @@ const char *discover_git_directory(struct strbuf *gitdir)
warning("ignoring git dir '%s': %s",
gitdir->buf + gitdir_offset, err.buf);
strbuf_release(&err);
+ strbuf_setlen(commondir, commondir_offset);
strbuf_setlen(gitdir, gitdir_offset);
- return NULL;
+ return -1;
}
- return gitdir->buf + gitdir_offset;
+ return 0;
}
const char *setup_git_directory_gently(int *nongit_ok)