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Merge branch 'ph/transport-with-gitfile'

* ph/transport-with-gitfile:
  Fix is_gitfile() for files too small or larger than PATH_MAX to be a gitfile
  Add test showing git-fetch groks gitfiles
  Teach transport about the gitfile mechanism
  Learn to handle gitfiles in enter_repo
  enter_repo: do not modify input
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gitster committed Oct 21, 2011
2 parents 8963314 + 3ac6437 commit afd6284a7fdbb479b5c99a87f64d7496f6fe8a27
Showing with 58 additions and 20 deletions.
  1. +1 −1 cache.h
  2. +2 −2 daemon.c
  3. +18 −16 path.c
  4. +14 −0 t/t5601-clone.sh
  5. +23 −1 transport.c
View
@@ -736,7 +736,7 @@ int safe_create_leading_directories(char *path);
int safe_create_leading_directories_const(const char *path);
int mkdir_in_gitdir(const char *path);
extern char *expand_user_path(const char *path);
-char *enter_repo(char *path, int strict);
+const char *enter_repo(const char *path, int strict);
static inline int is_absolute_path(const char *path)
{
return is_dir_sep(path[0]) || has_dos_drive_prefix(path);
View
@@ -108,11 +108,11 @@ static void NORETURN daemon_die(const char *err, va_list params)
exit(1);
}
-static char *path_ok(char *directory)
+static const char *path_ok(char *directory)
{
static char rpath[PATH_MAX];
static char interp_path[PATH_MAX];
- char *path;
+ const char *path;
char *dir;
dir = directory;
View
34 path.c
@@ -283,7 +283,7 @@ char *expand_user_path(const char *path)
* links. User relative paths are also returned as they are given,
* except DWIM suffixing.
*/
-char *enter_repo(char *path, int strict)
+const char *enter_repo(const char *path, int strict)
{
static char used_path[PATH_MAX];
static char validated_path[PATH_MAX];
@@ -295,16 +295,19 @@ char *enter_repo(char *path, int strict)
static const char *suffix[] = {
".git/.git", "/.git", ".git", "", NULL,
};
+ const char *gitfile;
int len = strlen(path);
int i;
- while ((1 < len) && (path[len-1] == '/')) {
- path[len-1] = 0;
+ while ((1 < len) && (path[len-1] == '/'))
len--;
- }
+
if (PATH_MAX <= len)
return NULL;
- if (path[0] == '~') {
- char *newpath = expand_user_path(path);
+ strncpy(used_path, path, len); used_path[len] = 0 ;
+ strcpy(validated_path, used_path);
+
+ if (used_path[0] == '~') {
+ char *newpath = expand_user_path(used_path);
if (!newpath || (PATH_MAX - 10 < strlen(newpath))) {
free(newpath);
return NULL;
@@ -316,24 +319,23 @@ char *enter_repo(char *path, int strict)
* anyway.
*/
strcpy(used_path, newpath); free(newpath);
- strcpy(validated_path, path);
- path = used_path;
}
else if (PATH_MAX - 10 < len)
return NULL;
- else {
- path = strcpy(used_path, path);
- strcpy(validated_path, path);
- }
- len = strlen(path);
+ len = strlen(used_path);
for (i = 0; suffix[i]; i++) {
- strcpy(path + len, suffix[i]);
- if (!access(path, F_OK)) {
+ strcpy(used_path + len, suffix[i]);
+ if (!access(used_path, F_OK)) {
strcat(validated_path, suffix[i]);
break;
}
}
- if (!suffix[i] || chdir(path))
+ if (!suffix[i])
+ return NULL;
+ gitfile = read_gitfile(used_path) ;
+ if (gitfile)
+ strcpy(used_path, gitfile);
+ if (chdir(used_path))
return NULL;
path = validated_path;
}
View
@@ -206,6 +206,20 @@ test_expect_success 'clone from .git file' '
git clone dst/.git dst2
'
+test_expect_success 'fetch from .git gitfile' '
+ (
+ cd dst2 &&
+ git fetch ../dst/.git
+ )
+'
+
+test_expect_success 'fetch from gitfile parent' '
+ (
+ cd dst2 &&
+ git fetch ../dst
+ )
+'
+
test_expect_success 'clone separate gitdir where target already exists' '
rm -rf dst &&
test_must_fail git clone --separate-git-dir realgitdir src dst
View
@@ -859,6 +859,28 @@ static int is_local(const char *url)
has_dos_drive_prefix(url);
}
+static int is_gitfile(const char *url)
+{
+ struct stat st;
+ char buf[9];
+ int fd, len;
+ if (stat(url, &st))
+ return 0;
+ if (!S_ISREG(st.st_mode))
+ return 0;
+ if (st.st_size < 10 || st.st_size > 9 + PATH_MAX)
+ return 0;
+
+ fd = open(url, O_RDONLY);
+ if (fd < 0)
+ die_errno("Error opening '%s'", url);
+ len = read_in_full(fd, buf, sizeof(buf));
+ close(fd);
+ if (len != sizeof(buf))
+ die("Error reading %s", url);
+ return !prefixcmp(buf, "gitdir: ");
+}
+
static int is_file(const char *url)
{
struct stat buf;
@@ -907,7 +929,7 @@ struct transport *transport_get(struct remote *remote, const char *url)
ret->fetch = fetch_objs_via_rsync;
ret->push = rsync_transport_push;
ret->smart_options = NULL;
- } else if (is_local(url) && is_file(url)) {
+ } else if (is_local(url) && is_file(url) && !is_gitfile(url)) {
struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
ret->data = data;
ret->get_refs_list = get_refs_from_bundle;

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