init-db: die on config errors when initializing empty repo

When creating an empty repository with `git init-db` 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 early with an error message when we are unable to write the configuration files to disk. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Patrick Steinhardt committed Feb 22, 2016 at 12:23 UTC 695009bc09a667899d06cda44956fea00ab153ab
1 file changed +10 -10
builtin/init-db.c
+10 -10
@@ -227,7 +227,7 @@ static int create_default_files(const char *template_path)
227 /* This forces creation of new config file */
228 xsnprintf(repo_version_string, sizeof(repo_version_string),
229 "%d", GIT_REPO_VERSION);
230 - git_config_set("core.repositoryformatversion", repo_version_string);
230 + git_config_set_or_die("core.repositoryformatversion", repo_version_string);
231
232 /* Check filemode trustability */
233 path = git_path_buf(&buf, "config");
@@ -241,18 +241,18 @@ static int create_default_files(const char *template_path)
241 if (filemode && !reinit && (st1.st_mode & S_IXUSR))
242 filemode = 0;
243 }
244 - git_config_set("core.filemode", filemode ? "true" : "false");
244 + git_config_set_or_die("core.filemode", filemode ? "true" : "false");
245
246 if (is_bare_repository())
247 - git_config_set("core.bare", "true");
247 + git_config_set_or_die("core.bare", "true");
248 else {
249 const char *work_tree = get_git_work_tree();
250 - git_config_set("core.bare", "false");
250 + git_config_set_or_die("core.bare", "false");
251 /* allow template config file to override the default */
252 if (log_all_ref_updates == -1)
253 - git_config_set("core.logallrefupdates", "true");
253 + git_config_set_or_die("core.logallrefupdates", "true");
254 if (needs_work_tree_config(get_git_dir(), work_tree))
255 - git_config_set("core.worktree", work_tree);
255 + git_config_set_or_die("core.worktree", work_tree);
256 }
257
258 if (!reinit) {
@@ -265,12 +265,12 @@ static int create_default_files(const char *template_path)
265 S_ISLNK(st1.st_mode))
266 unlink(path); /* good */
267 else
268 - git_config_set("core.symlinks", "false");
268 + git_config_set_or_die("core.symlinks", "false");
269
270 /* Check if the filesystem is case-insensitive */
271 path = git_path_buf(&buf, "CoNfIg");
272 if (!access(path, F_OK))
273 - git_config_set("core.ignorecase", "true");
273 + git_config_set_or_die("core.ignorecase", "true");
274 probe_utf8_pathname_composition();
275 }
276
@@ -386,8 +386,8 @@ int init_db(const char *template_dir, unsigned int flags)
386 xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_EVERYBODY);
387 else
388 die("BUG: invalid value for shared_repository");
389 - git_config_set("core.sharedrepository", buf);
390 - git_config_set("receive.denyNonFastforwards", "true");
389 + git_config_set_or_die("core.sharedrepository", buf);
390 + git_config_set_or_die("receive.denyNonFastforwards", "true");
391 }
392
393 if (!(flags & INIT_DB_QUIET)) {