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[PATCH v2 06/19] Use git_config_early() instead of git_config() during repo setup

From
Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Date
Mar 21, 2010, 10:30 UTC
Message-ID
<1269167446-7799-7-git-send-email-pclouds@gmail.com>
In-Reply-To
<1269167446-7799-1-git-send-email-pclouds@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 setup.c |   30 ++++++++++++++++++++++--------
 1 files changed, 22 insertions(+), 8 deletions(-)
diff --git a/setup.c b/setup.c
index 43a8609..2c1b64f 100644
--- a/setup.c
+++ b/setup.c
@@ -241,9 +241,21 @@ void setup_work_tree(void)
 	initialized = 1;
 }
 
-static int check_repository_format_gently(int *nongit_ok)
+static int check_repository_format_gently(const char *gitdir, int *nongit_ok)
 {
-	git_config(check_repository_format_version, NULL);
+	char repo_config[PATH_MAX+1];
+
+	/*
+	 * git_config() can't be used here because it calls git_pathdup()
+	 * to get $GIT_CONFIG/config. That call will make setup_git_env()
+	 * set git_dir to ".git".
+	 *
+	 * We are in gitdir setup, no git dir has been found useable yet.
+	 * Use a gentler version of git_config() to check if this repo
+	 * is a good one.
+	 */
+	snprintf(repo_config, PATH_MAX, "%s/config", gitdir);
+	git_config_early(check_repository_format_version, NULL, repo_config);
 	if (GIT_REPO_VERSION < repository_format_version) {
 		if (!nongit_ok)
 			die ("Expected git repo version <= %d, found %d",
@@ -348,12 +360,12 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
 			if (!work_tree_env) {
 				retval = set_work_tree(gitdirenv);
 				/* config may override worktree */
-				if (check_repository_format_gently(nongit_ok))
+				if (check_repository_format_gently(gitdirenv, nongit_ok))
 					return NULL;
 				set_git_dir(gitdirenv);
 				return retval;
 			}
-			if (check_repository_format_gently(nongit_ok))
+			if (check_repository_format_gently(gitdirenv, nongit_ok))
 				return NULL;
 			retval = get_relative_cwd(buffer, sizeof(buffer) - 1,
 					get_git_work_tree());
@@ -403,6 +415,8 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
 			inside_git_dir = 0;
 			if (!work_tree_env)
 				inside_work_tree = 1;
+			if (check_repository_format_gently(gitfile_dir, nongit_ok))
+				return NULL;
 			root_len = offset_1st_component(cwd);
 			git_work_tree_cfg = xstrndup(cwd, offset > root_len ? offset : root_len);
 			break;
@@ -411,6 +425,8 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
 			inside_git_dir = 1;
 			if (!work_tree_env)
 				inside_work_tree = 0;
+			if (check_repository_format_gently(".", nongit_ok))
+				return NULL;
 			if (offset != len) {
 				root_len = offset_1st_component(cwd);
 				cwd[offset > root_len ? offset : root_len] = '\0';
@@ -433,8 +449,6 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
 			die_errno("Cannot change to '%s/..'", cwd);
 	}
 
-	if (check_repository_format_gently(nongit_ok))
-		return NULL;
 	if (offset == len)
 		return NULL;
 
@@ -542,7 +556,7 @@ char *enter_repo(char *path, int strict)
 	    validate_headref("HEAD") == 0) {
 		inside_work_tree = 0;
 		inside_git_dir = 1;
-		check_repository_format();
+		check_repository_format_gently(".", NULL);
 		set_git_dir(".");
 		if (startup_info) {
 			startup_info->prefix = NULL;
@@ -627,7 +641,7 @@ int check_repository_format_version(const char *var, const char *value, void *cb
 
 int check_repository_format(void)
 {
-	return check_repository_format_gently(NULL);
+	return check_repository_format_gently(get_git_dir(), NULL);
 }
 
 const char *setup_git_directory(void)
-- 
1.7.0.2.425.gb99f1
Previous: Nguyễn Thái Ngọc DuyNext: Nguyễn Thái Ngọc Duy
Message 7 of 20 in “nd/setup part two, second round”
  1. 00/19 nd/setup part two, second roundNguyễn Thái Ngọc Duy, Mar 21, 2010
  2. 01/19 Move enter_repo() to setup.cNguyễn Thái Ngọc Duy, Mar 21, 2010
  3. 02/19 enter_repo(): initialize other variables as setup_git_directory_gently() doesNguyễn Thái Ngọc Duy, Mar 21, 2010
  4. 03/19 rev-parse --git-dir: print relative gitdir correctlyNguyễn Thái Ngọc Duy, Mar 21, 2010
  5. 04/19 worktree setup: call set_git_dir explicitlyNguyễn Thái Ngọc Duy, Mar 21, 2010
  6. 05/19 Add git_config_early()Nguyễn Thái Ngọc Duy, Mar 21, 2010
  7. 06/19 Use git_config_early() instead of git_config() during repo setupNguyễn Thái Ngọc Duy, Mar 21, 2010
  8. 07/19 worktree setup: restore original state when things go wrongNguyễn Thái Ngọc Duy, Mar 21, 2010
  9. 08/19 init/clone: turn on startup->have_repository properlyNguyễn Thái Ngọc Duy, Mar 21, 2010
  10. 09/19 git_config(): do not read .git/config if there is no repositoryNguyễn Thái Ngọc Duy, Mar 21, 2010
  11. 10/19 Do not read .git/info/exclude if there is no repositoryNguyễn Thái Ngọc Duy, Mar 21, 2010
  12. 11/19 Do not read .git/info/attributes if there is no repositoryNguyễn Thái Ngọc Duy, Mar 21, 2010
  13. 12/19 apply: do not check sha1 when repository has not been foundNguyễn Thái Ngọc Duy, Mar 21, 2010
  14. 13/19 config: do not read .git/config if there is no repositoryNguyễn Thái Ngọc Duy, Mar 21, 2010
  15. 14/19 run_builtin(): save "-h" detection result for later useNguyễn Thái Ngọc Duy, Mar 21, 2010
  16. 15/19 builtins: utilize startup_info->help where possibleNguyễn Thái Ngọc Duy, Mar 21, 2010
  17. 16/19 builtins: check for startup_info->help, print and exit earlyNguyễn Thái Ngọc Duy, Mar 21, 2010
  18. 17/19 Allow to undo setup_git_directory_gently() gracefully (and fix alias code)Nguyễn Thái Ngọc Duy, Mar 21, 2010
  19. 18/19 alias: keep repository found while collecting aliases as long as possibleNguyễn Thái Ngọc Duy, Mar 21, 2010
  20. 19/19 Guard unallowed access to repository when it's not set upNguyễn Thái Ngọc Duy, Mar 21, 2010

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