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[PATCH v2 6/9] init-db: handle config errors

From
Patrick Steinhardt <ps@pks.im>
Date
Jan 28, 2016, 09:00 UTC
Message-ID
<1453971637-22273-7-git-send-email-ps@pks.im>
In-Reply-To
<1453971637-22273-1-git-send-email-ps@pks.im>

When creating default files we do not check for error codes returned by `git_config_set` functions. This may cause the user to end up with an inconsistent repository without any indication for the user.

Fix this problem by dying with an error message when we are unable to write the configuration files to disk.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
---
 builtin/init-db.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/builtin/init-db.c b/builtin/init-db.c
index 07229d6..ef19048 100644
--- a/builtin/init-db.c
+++ b/builtin/init-db.c
@@ -227,7 +227,7 @@ static int create_default_files(const char *template_path)
 	/* This forces creation of new config file */
 	xsnprintf(repo_version_string, sizeof(repo_version_string),
 		  "%d", GIT_REPO_VERSION);
-	git_config_set("core.repositoryformatversion", repo_version_string);
+	git_config_set_or_die("core.repositoryformatversion", repo_version_string);
 
 	/* Check filemode trustability */
 	path = git_path_buf(&buf, "config");
@@ -241,18 +241,18 @@ static int create_default_files(const char *template_path)
 		if (filemode && !reinit && (st1.st_mode & S_IXUSR))
 			filemode = 0;
 	}
-	git_config_set("core.filemode", filemode ? "true" : "false");
+	git_config_set_or_die("core.filemode", filemode ? "true" : "false");
 
 	if (is_bare_repository())
-		git_config_set("core.bare", "true");
+		git_config_set_or_die("core.bare", "true");
 	else {
 		const char *work_tree = get_git_work_tree();
-		git_config_set("core.bare", "false");
+		git_config_set_or_die("core.bare", "false");
 		/* allow template config file to override the default */
 		if (log_all_ref_updates == -1)
-		    git_config_set("core.logallrefupdates", "true");
+			git_config_set_or_die("core.logallrefupdates", "true");
 		if (needs_work_tree_config(get_git_dir(), work_tree))
-			git_config_set("core.worktree", work_tree);
+			git_config_set_or_die("core.worktree", work_tree);
 	}
 
 	if (!reinit) {
@@ -265,12 +265,12 @@ static int create_default_files(const char *template_path)
 		    S_ISLNK(st1.st_mode))
 			unlink(path); /* good */
 		else
-			git_config_set("core.symlinks", "false");
+			git_config_set_or_die("core.symlinks", "false");
 
 		/* Check if the filesystem is case-insensitive */
 		path = git_path_buf(&buf, "CoNfIg");
 		if (!access(path, F_OK))
-			git_config_set("core.ignorecase", "true");
+			git_config_set_or_die("core.ignorecase", "true");
 		probe_utf8_pathname_composition();
 	}
 
@@ -386,8 +386,8 @@ int init_db(const char *template_dir, unsigned int flags)
 			xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_EVERYBODY);
 		else
 			die("BUG: invalid value for shared_repository");
-		git_config_set("core.sharedrepository", buf);
-		git_config_set("receive.denyNonFastforwards", "true");
+		git_config_set_or_die("core.sharedrepository", buf);
+		git_config_set_or_die("receive.denyNonFastforwards", "true");
 	}
 
 	if (!(flags & INIT_DB_QUIET)) {
-- 
2.7.0
Previous: Patrick SteinhardtNext: Patrick Steinhardt
Message 7 of 13 in “Handle errors when setting configs”
  1. 0/9 Handle errors when setting configsPatrick Steinhardt, Jan 28, 2016
  2. 1/9 config: introduce set_or_die wrappersPatrick Steinhardt, Jan 28, 2016
  3. 2/9 branch: return error code for install_branch_configPatrick Steinhardt, Jan 28, 2016
  4. 3/9 remote: handle config errors in set_urlPatrick Steinhardt, Jan 28, 2016
  5. 4/9 clone: handle config errors in cmd_clonePatrick Steinhardt, Jan 28, 2016
  6. 5/9 branch: handle config errors when unsetting upstreamPatrick Steinhardt, Jan 28, 2016
  7. 6/9 init-db: handle config errorsPatrick Steinhardt, Jan 28, 2016
  8. 7/9 sequencer: handle config errors when saving optsPatrick Steinhardt, Jan 28, 2016
  9. 8/9 submodule--helper: handle config errorsPatrick Steinhardt, Jan 28, 2016
  10. 9/9 compat: die when unable to set core.precomposeunicodePatrick Steinhardt, Jan 28, 2016
  11. Jeff KingJan 29, 2016
  12. Junio C HamanoJan 29, 2016
  13. Patrick SteinhardtJan 30, 2016

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