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From: "Nguyễn Thái Ngọc Duy" <pclouds@gmail•com>
To: git@vger•kernel.org
Cc: "Nguyễn Thái Ngọc Duy" <pclouds@gmail•com>
Subject: [PATCH 06/16] Use git_config_early() instead of git_config() during repo setup
Date: Thu, 11 Mar 2010 20:22:24 +0700	[thread overview]
Message-ID: <1268313754-28179-7-git-send-email-pclouds@gmail.com> (raw)
In-Reply-To: <1268313754-28179-1-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..b8f88db 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(gitfile_dir, 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)
-- 
1.7.0.1.384.g6abcaa

  parent reply	other threads:[~2010-03-11 13:23 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-11 13:22 [PATCH 00/16] nd/setup part two Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` [PATCH 01/16] Move enter_repo() to setup.c Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` [PATCH 02/16] enter_repo(): initialize other variables as setup_git_directory_gently() does Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` [PATCH 03/16] rev-parse --git-dir: print relative gitdir correctly Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` [PATCH 04/16] worktree setup: call set_git_dir explicitly Nguyễn Thái Ngọc Duy
2010-03-11 21:24   ` Junio C Hamano
     [not found]     ` <fcaeb9bf1003111645p54f42aaetbb622f8bde0ec8ad@mail.gmail.com>
2010-03-20  8:10       ` Nguyen Thai Ngoc Duy
2010-03-11 13:22 ` [PATCH 05/16] Add git_config_early() Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` Nguyễn Thái Ngọc Duy [this message]
2010-03-12  3:35   ` [PATCH 06/16] Use git_config_early() instead of git_config() during repo setup Nguyen Thai Ngoc Duy
2010-03-11 13:22 ` [PATCH 07/16] worktree setup: restore original state when things go wrong Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` [PATCH 08/16] init/clone: turn on startup->have_repository properly Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` [PATCH 09/16] git_config(): do not read .git/config if there is no repository Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` [PATCH 10/16] Do not read .git/info/exclude " Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` [PATCH 11/16] Do not read .git/info/attributes " Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` [PATCH 12/16] apply: do not check sha1 when repository has not been found Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` [PATCH 13/16] config: do not read .git/config if there is no repository Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` [PATCH 14/16] Allow to undo setup_git_directory_gently() gracefully (and fix alias code) Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` [PATCH 15/16] alias: keep repository found while collecting aliases as long as possible Nguyễn Thái Ngọc Duy
2010-03-11 13:22 ` [PATCH 16/16] Guard unallowed access to repository when it's not set up Nguyễn Thái Ngọc Duy

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