Show changes to setup.c +98 −57
diff --git a/setup.c b/setup.c
index 324a235dd1..f713d024f7 100644
--- a/setup.c
+++ b/setup.c
@@ -1090,14 +1090,47 @@ static void apply_and_export_relative_gitdir(struct repository *repo, const char
strbuf_release(&realpath);
}
-static const char *setup_explicit_git_dir(struct repository *repo,
- const char *gitdirenv,
- struct strbuf *cwd,
- struct repository_format *repo_fmt,
- int *nongit_ok)
+struct repo_discovery {
+ char *gitdir;
+ char *worktree;
+};
+
+#define REPO_DISCOVERY_INIT { 0 }
+
+static void repo_discovery_release(struct repo_discovery *r)
+{
+ free(r->gitdir);
+ free(r->worktree);
+}
+
+static void repo_discovery_set_gitdir(struct repo_discovery *r,
+ const char *gitdir,
+ int make_realpath)
+{
+ free(r->gitdir);
+ if (make_realpath) {
+ struct strbuf realpath = STRBUF_INIT;
+ strbuf_realpath(&realpath, gitdir, 1);
+ r->gitdir = strbuf_detach(&realpath, NULL);
+ } else {
+ r->gitdir = xstrdup(gitdir);
+ }
+}
+
+static void repo_discovery_set_worktree(struct repo_discovery *r,
+ const char *worktree)
+{
+ free(r->worktree);
+ r->worktree = real_pathdup(worktree, 1);
+}
+
+static const char *repo_discover_explicit_gitdir(struct repo_discovery *discovery,
+ const char *gitdirenv,
+ struct strbuf *cwd,
+ struct repository_format *repo_fmt,
+ int *nongit_ok)
{
const char *work_tree_env = getenv(GIT_WORK_TREE_ENVIRONMENT);
- const char *worktree;
char *gitfile;
int offset;
@@ -1133,15 +1166,15 @@ static const char *setup_explicit_git_dir(struct repository *repo,
* we have to explicitly unset the configuration.
*/
FREE_AND_NULL(repo_fmt->work_tree);
- set_git_work_tree(repo, work_tree_env);
+ repo_discovery_set_worktree(discovery, work_tree_env);
} else if (repo_fmt->is_bare > 0) {
/* #18, #26 */
- apply_and_export_relative_gitdir(repo, gitdirenv, 0);
+ repo_discovery_set_gitdir(discovery, gitdirenv, 0);
free(gitfile);
return NULL;
} else if (repo_fmt->work_tree) { /* #6, #14 */
if (is_absolute_path(repo_fmt->work_tree)) {
- set_git_work_tree(repo, repo_fmt->work_tree);
+ repo_discovery_set_worktree(discovery, repo_fmt->work_tree);
} else {
char *core_worktree;
if (chdir(gitdirenv))
@@ -1151,49 +1184,46 @@ static const char *setup_explicit_git_dir(struct repository *repo,
core_worktree = xgetcwd();
if (chdir(cwd->buf))
die_errno(_("cannot come back to cwd"));
- set_git_work_tree(repo, core_worktree);
+ repo_discovery_set_worktree(discovery, core_worktree);
free(core_worktree);
}
} else if (!git_env_bool(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, 1)) {
/* #16d */
- apply_and_export_relative_gitdir(repo, gitdirenv, 0);
+ repo_discovery_set_gitdir(discovery, gitdirenv, 0);
free(gitfile);
return NULL;
} else { /* #2, #10 */
- set_git_work_tree(repo, ".");
+ repo_discovery_set_worktree(discovery, ".");
}
- /* set_git_work_tree() must have been called by now */
- worktree = repo_get_work_tree(repo);
-
- /* both repo_get_work_tree() and cwd are already normalized */
- if (!strcmp(cwd->buf, worktree)) { /* cwd == worktree */
- apply_and_export_relative_gitdir(repo, gitdirenv, 0);
+ /* both the worktree and cwd are already normalized */
+ if (!strcmp(cwd->buf, discovery->worktree)) { /* cwd == worktree */
+ repo_discovery_set_gitdir(discovery, gitdirenv, 0);
free(gitfile);
return NULL;
}
- offset = dir_inside_of(cwd->buf, worktree);
- if (offset >= 0) { /* cwd inside worktree? */
- apply_and_export_relative_gitdir(repo, gitdirenv, 1);
- if (chdir(worktree))
- die_errno(_("cannot chdir to '%s'"), worktree);
+ offset = dir_inside_of(cwd->buf, discovery->worktree);
+ if (offset >= 0) { /* cwd inside discovery->worktree? */
+ repo_discovery_set_gitdir(discovery, gitdirenv, 1);
+ if (chdir(discovery->worktree))
+ die_errno(_("cannot chdir to '%s'"), discovery->worktree);
strbuf_addch(cwd, '/');
free(gitfile);
return cwd->buf + offset;
}
/* cwd outside worktree */
- apply_and_export_relative_gitdir(repo, gitdirenv, 0);
+ repo_discovery_set_gitdir(discovery, gitdirenv, 0);
free(gitfile);
return NULL;
}
-static const char *setup_discovered_git_dir(struct repository *repo,
- const char *gitdir,
- struct strbuf *cwd, int offset,
- struct repository_format *repo_fmt,
- int *nongit_ok)
+static const char *repo_discover_implicit_gitdir(struct repo_discovery *discovery,
+ const char *gitdir,
+ struct strbuf *cwd, int offset,
+ struct repository_format *repo_fmt,
+ int *nongit_ok)
{
if (read_and_verify_repository_format(repo_fmt, gitdir, nongit_ok))
return NULL;
@@ -1207,23 +1237,24 @@ static const char *setup_discovered_git_dir(struct repository *repo,
gitdir = to_free = real_pathdup(gitdir, 1);
if (chdir(cwd->buf))
die_errno(_("cannot come back to cwd"));
- ret = setup_explicit_git_dir(repo, gitdir, cwd, repo_fmt, nongit_ok);
+ ret = repo_discover_explicit_gitdir(discovery, gitdir, cwd,
+ repo_fmt, nongit_ok);
free(to_free);
return ret;
}
/* #16.2, #17.2, #20.2, #21.2, #24, #25, #28, #29 (see t1510) */
if (repo_fmt->is_bare > 0) {
- apply_and_export_relative_gitdir(repo, gitdir, (offset != cwd->len));
+ repo_discovery_set_gitdir(discovery, gitdir, (offset != cwd->len));
if (chdir(cwd->buf))
die_errno(_("cannot come back to cwd"));
return NULL;
}
/* #0, #1, #5, #8, #9, #12, #13 */
- set_git_work_tree(repo, ".");
+ repo_discovery_set_worktree(discovery, ".");
if (strcmp(gitdir, DEFAULT_GIT_DIR_ENVIRONMENT))
- apply_and_export_relative_gitdir(repo, gitdir, 0);
+ repo_discovery_set_gitdir(discovery, gitdir, 0);
if (offset >= cwd->len)
return NULL;
@@ -1236,10 +1267,10 @@ static const char *setup_discovered_git_dir(struct repository *repo,
}
/* #16.1, #17.1, #20.1, #21.1, #22.1 (see t1510) */
-static const char *setup_bare_git_dir(struct repository *repo,
- struct strbuf *cwd, int offset,
- struct repository_format *repo_fmt,
- int *nongit_ok)
+static const char *repo_discover_bare_gitdir(struct repo_discovery *discovery,
+ struct strbuf *cwd, int offset,
+ struct repository_format *repo_fmt,
+ int *nongit_ok)
{
int root_len;
@@ -1255,7 +1286,8 @@ static const char *setup_bare_git_dir(struct repository *repo,
gitdir = offset == cwd->len ? "." : xmemdupz(cwd->buf, offset);
if (chdir(cwd->buf))
die_errno(_("cannot come back to cwd"));
- return setup_explicit_git_dir(repo, gitdir, cwd, repo_fmt, nongit_ok);
+ return repo_discover_explicit_gitdir(discovery, gitdir, cwd,
+ repo_fmt, nongit_ok);
}
if (offset != cwd->len) {
@@ -1263,10 +1295,10 @@ static const char *setup_bare_git_dir(struct repository *repo,
die_errno(_("cannot come back to cwd"));
root_len = offset_1st_component(cwd->buf);
strbuf_setlen(cwd, offset > root_len ? offset : root_len);
- apply_and_export_relative_gitdir(repo, cwd->buf, 0);
+ repo_discovery_set_gitdir(discovery, cwd->buf, 0);
}
else
- apply_and_export_relative_gitdir(repo, ".", 0);
+ repo_discovery_set_gitdir(discovery, ".", 0);
return NULL;
}
@@ -1525,10 +1557,10 @@ static int is_implicit_bare_repo(const char *path)
* the discovered .git/ directory, if any. If `gitdir` is not absolute, it
* is relative to `dir` (i.e. *not* necessarily the cwd).
*/
-static enum discovery_result setup_git_directory_gently_1(struct strbuf *dir,
- struct strbuf *gitdir,
- struct strbuf *report,
- int die_on_error)
+static enum discovery_result repo_discovery_find_dir(struct strbuf *dir,
+ struct strbuf *gitdir,
+ struct strbuf *report,
+ int die_on_error)
{
const char *env_ceiling_dirs = getenv(CEILING_DIRECTORIES_ENVIRONMENT);
struct string_list ceiling_dirs = STRING_LIST_INIT_DUP;
@@ -1695,7 +1727,7 @@ enum discovery_result discover_git_directory_reason(struct strbuf *commondir,
return GIT_DIR_CWD_FAILURE;
cwd_len = dir.len;
- result = setup_git_directory_gently_1(&dir, gitdir, NULL, 0);
+ result = repo_discovery_find_dir(&dir, gitdir, NULL, 0);
if (result <= 0) {
strbuf_release(&dir);
return result;
@@ -1902,6 +1934,7 @@ const char *setup_git_directory_gently(struct repository *repo, int *nongit_ok)
{
static struct strbuf cwd = STRBUF_INIT;
struct strbuf dir = STRBUF_INIT, gitdir = STRBUF_INIT, report = STRBUF_INIT;
+ struct repo_discovery discovery = REPO_DISCOVERY_INIT;
const char *prefix = NULL;
struct repository_format repo_fmt = REPOSITORY_FORMAT_INIT;
@@ -1926,20 +1959,22 @@ const char *setup_git_directory_gently(struct repository *repo, int *nongit_ok)
die_errno(_("Unable to read current working directory"));
strbuf_addbuf(&dir, &cwd);
- switch (setup_git_directory_gently_1(&dir, &gitdir, &report, 1)) {
+ switch (repo_discovery_find_dir(&dir, &gitdir, &report, 1)) {
case GIT_DIR_EXPLICIT:
- prefix = setup_explicit_git_dir(repo, gitdir.buf, &cwd, &repo_fmt, nongit_ok);
+ prefix = repo_discover_explicit_gitdir(&discovery, gitdir.buf, &cwd,
+ &repo_fmt, nongit_ok);
break;
case GIT_DIR_DISCOVERED:
if (dir.len < cwd.len && chdir(dir.buf))
die(_("cannot change to '%s'"), dir.buf);
- prefix = setup_discovered_git_dir(repo, gitdir.buf, &cwd, dir.len,
- &repo_fmt, nongit_ok);
+ prefix = repo_discover_implicit_gitdir(&discovery, gitdir.buf, &cwd, dir.len,
+ &repo_fmt, nongit_ok);
break;
case GIT_DIR_BARE:
if (dir.len < cwd.len && chdir(dir.buf))
die(_("cannot change to '%s'"), dir.buf);
- prefix = setup_bare_git_dir(repo, &cwd, dir.len, &repo_fmt, nongit_ok);
+ prefix = repo_discover_bare_gitdir(&discovery, &cwd, dir.len,
+ &repo_fmt, nongit_ok);
break;
case GIT_DIR_HIT_CEILING:
if (!nongit_ok)
@@ -1980,13 +2015,13 @@ const char *setup_git_directory_gently(struct repository *repo, int *nongit_ok)
case GIT_DIR_CWD_FAILURE:
case GIT_DIR_INVALID_FORMAT:
/*
- * As a safeguard against setup_git_directory_gently_1 returning
+ * As a safeguard against repo_discovery_find_dir returning
* these values, fallthrough to BUG. Otherwise it is possible to
* set startup_info->have_repository to 1 when we did nothing to
* find a repository.
*/
default:
- BUG("unhandled setup_git_directory_gently_1() result");
+ BUG("unhandled repo_discovery_find_dir() result");
}
/*
@@ -2005,10 +2040,10 @@ const char *setup_git_directory_gently(struct repository *repo, int *nongit_ok)
startup_info->have_repository = 1;
/*
- * Not all paths through the setup code will call 'apply_and_export_relative_gitdir()' (which
- * directly sets up the environment) so in order to guarantee that the
- * environment is in a consistent state after setup, explicitly setup
- * the environment if we have a repository.
+ * Not all paths through the setup code will have recorded a gitdir
+ * above, so in order to guarantee that the environment is in a
+ * consistent state after setup, explicitly set up the gitdir and
+ * environment if we have a repository.
*
* NEEDSWORK: currently we allow bogus GIT_DIR values to be set in some
* code paths so we also need to explicitly setup the environment if
@@ -2019,7 +2054,12 @@ const char *setup_git_directory_gently(struct repository *repo, int *nongit_ok)
startup_info->have_repository ||
/* GIT_DIR_EXPLICIT */
getenv(GIT_DIR_ENVIRONMENT)) {
- if (!repo->gitdir) {
+ if (discovery.worktree)
+ set_git_work_tree(repo, discovery.worktree);
+
+ if (discovery.gitdir) {
+ apply_and_export_relative_gitdir(repo, discovery.gitdir, 0);
+ } else {
const char *gitdir = getenv(GIT_DIR_ENVIRONMENT);
if (!gitdir)
gitdir = DEFAULT_GIT_DIR_ENVIRONMENT;
@@ -2074,6 +2114,7 @@ const char *setup_git_directory_gently(struct repository *repo, int *nongit_ok)
setup_original_cwd(repo);
+ repo_discovery_release(&discovery);
strbuf_release(&dir);
strbuf_release(&gitdir);
strbuf_release(&report);