const char *name;
struct stat st;
+ if (is_inside_git_dir())
+ return;
if (*arg == '-')
return; /* flag */
name = prefix ? prefix_filename(prefix, strlen(prefix), arg) : arg;
}
/*
- * Test if it looks like we're at the top level git directory.
+ * Test if it looks like we're at a git directory.
* We want to see:
*
- * - either a .git/objects/ directory _or_ the proper
+ * - either a objects/ directory _or_ the proper
* GIT_OBJECT_DIRECTORY environment variable
- * - a refs/ directory under ".git"
+ * - a refs/ directory
* - either a HEAD symlink or a HEAD file that is formatted as
- * a proper "ref:".
+ * a proper "ref:", or a regular file HEAD that has a properly
+ * formatted sha1 object name.
*/
-static int is_toplevel_directory(void)
+static int is_git_directory(const char *suspect)
{
- if (access(".git/refs/", X_OK) ||
- access(getenv(DB_ENVIRONMENT) ?
- getenv(DB_ENVIRONMENT) : ".git/objects/", X_OK) ||
- validate_symref(".git/HEAD"))
+ char path[PATH_MAX];
+ size_t len = strlen(suspect);
+
+ strcpy(path, suspect);
+ if (getenv(DB_ENVIRONMENT)) {
+ if (access(getenv(DB_ENVIRONMENT), X_OK))
+ return 0;
+ }
+ else {
+ strcpy(path + len, "/objects");
+ if (access(path, X_OK))
+ return 0;
+ }
+
+ strcpy(path + len, "/refs");
+ if (access(path, X_OK))
return 0;
+
+ strcpy(path + len, "/HEAD");
+ if (validate_headref(path))
+ return 0;
+
return 1;
}
+static int inside_git_dir = -1;
+
+int is_inside_git_dir(void)
+{
+ if (inside_git_dir < 0) {
+ char buffer[1024];
+
+ if (is_bare_repository())
+ return (inside_git_dir = 1);
+ if (getcwd(buffer, sizeof(buffer))) {
+ const char *git_dir = get_git_dir(), *cwd = buffer;
+ while (*git_dir && *git_dir == *cwd) {
+ git_dir++;
+ cwd++;
+ }
+ inside_git_dir = !*git_dir;
+ } else
+ inside_git_dir = 0;
+ }
+ return inside_git_dir;
+}
+
const char *setup_git_directory_gently(int *nongit_ok)
{
static char cwd[PATH_MAX+1];
+ const char *gitdirenv;
int len, offset;
/*
* to do any discovery, but we still do repository
* validation.
*/
- if (getenv(GIT_DIR_ENVIRONMENT)) {
- char path[PATH_MAX];
- int len = strlen(getenv(GIT_DIR_ENVIRONMENT));
- if (sizeof(path) - 40 < len)
+ gitdirenv = getenv(GIT_DIR_ENVIRONMENT);
+ if (gitdirenv) {
+ if (PATH_MAX - 40 < strlen(gitdirenv))
die("'$%s' too big", GIT_DIR_ENVIRONMENT);
- memcpy(path, getenv(GIT_DIR_ENVIRONMENT), len);
-
- strcpy(path + len, "/refs");
- if (access(path, X_OK))
- goto bad_dir_environ;
- strcpy(path + len, "/HEAD");
- if (validate_symref(path))
- goto bad_dir_environ;
- if (getenv(DB_ENVIRONMENT)) {
- if (access(getenv(DB_ENVIRONMENT), X_OK))
- goto bad_dir_environ;
- }
- else {
- strcpy(path + len, "/objects");
- if (access(path, X_OK))
- goto bad_dir_environ;
- }
- return NULL;
- bad_dir_environ:
+ if (is_git_directory(gitdirenv))
+ return NULL;
if (nongit_ok) {
*nongit_ok = 1;
return NULL;
}
- path[len] = 0;
- die("Not a git repository: '%s'", path);
+ die("Not a git repository: '%s'", gitdirenv);
}
if (!getcwd(cwd, sizeof(cwd)) || cwd[0] != '/')
offset = len = strlen(cwd);
for (;;) {
- if (is_toplevel_directory())
+ if (is_git_directory(".git"))
break;
chdir("..");
do {
if (!offset) {
+ if (is_git_directory(cwd)) {
+ if (chdir(cwd))
+ die("Cannot come back to cwd");
+ setenv(GIT_DIR_ENVIRONMENT, cwd, 1);
+ inside_git_dir = 1;
+ return NULL;
+ }
if (nongit_ok) {
if (chdir(cwd))
die("Cannot come back to cwd");
offset++;
cwd[len++] = '/';
cwd[len] = 0;
+ inside_git_dir = !prefixcmp(cwd + offset, ".git/");
return cwd + offset;
}
repository_format_version = git_config_int(var, value);
else if (strcmp(var, "core.sharedrepository") == 0)
shared_repository = git_config_perm(var, value);
- else if (strcmp(var, "receive.denynonfastforwards") == 0)
- deny_non_fast_forwards = git_config_bool(var, value);
return 0;
}