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authorLinus Torvalds <torvalds@linux-foundation.org>2007-04-13 16:26:04 (GMT)
committerJunio C Hamano <junkio@cox.net>2007-04-14 10:14:16 (GMT)
commitf0807e62b42df51a079c730dcf4868de9ad44ea5 (patch)
tree7784f8d2ba414bb27dfc48a817091e5a6d31a441 /entry.c
parent6e2f441bd42c55c73b5e7ac1fdc2aded07901cb3 (diff)
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Teach "git-read-tree -u" to check out submodules as a directory
This actually allows us to check out a supermodule after cloning, although the submodules themselves will obviously not be checked out, and will just be empty directories. Checking out the submodules will be up to higher levels - we may not even want to! Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'entry.c')
-rw-r--r--entry.c45
1 files changed, 32 insertions, 13 deletions
diff --git a/entry.c b/entry.c
index d72f811..50ffae4 100644
--- a/entry.c
+++ b/entry.c
@@ -62,26 +62,33 @@ static int create_file(const char *path, unsigned int mode)
return open(path, O_WRONLY | O_CREAT | O_EXCL, mode);
}
+static void *read_blob_entry(struct cache_entry *ce, const char *path, unsigned long *size)
+{
+ enum object_type type;
+ void *new = read_sha1_file(ce->sha1, &type, size);
+
+ if (new) {
+ if (type == OBJ_BLOB)
+ return new;
+ free(new);
+ }
+ return NULL;
+}
+
static int write_entry(struct cache_entry *ce, char *path, struct checkout *state, int to_tempfile)
{
int fd;
- void *new;
- unsigned long size;
long wrote;
- enum object_type type;
- new = read_sha1_file(ce->sha1, &type, &size);
- if (!new || type != OBJ_BLOB) {
- if (new)
- free(new);
- return error("git-checkout-index: unable to read sha1 file of %s (%s)",
- path, sha1_to_hex(ce->sha1));
- }
switch (ntohl(ce->ce_mode) & S_IFMT) {
- char *buf;
- unsigned long nsize;
+ char *buf, *new;
+ unsigned long size, nsize;
case S_IFREG:
+ new = read_blob_entry(ce, path, &size);
+ if (!new)
+ return error("git-checkout-index: unable to read sha1 file of %s (%s)",
+ path, sha1_to_hex(ce->sha1));
if (to_tempfile) {
strcpy(path, ".merge_file_XXXXXX");
fd = mkstemp(path);
@@ -111,6 +118,10 @@ static int write_entry(struct cache_entry *ce, char *path, struct checkout *stat
return error("git-checkout-index: unable to write file %s", path);
break;
case S_IFLNK:
+ new = read_blob_entry(ce, path, &size);
+ if (!new)
+ return error("git-checkout-index: unable to read sha1 file of %s (%s)",
+ path, sha1_to_hex(ce->sha1));
if (to_tempfile || !has_symlinks) {
if (to_tempfile) {
strcpy(path, ".merge_link_XXXXXX");
@@ -136,8 +147,13 @@ static int write_entry(struct cache_entry *ce, char *path, struct checkout *stat
"symlink %s (%s)", path, strerror(errno));
}
break;
+ case S_IFDIRLNK:
+ if (to_tempfile)
+ return error("git-checkout-index: cannot create temporary subproject %s", path);
+ if (mkdir(path, 0777) < 0)
+ return error("git-checkout-index: cannot create subproject directory %s", path);
+ break;
default:
- free(new);
return error("git-checkout-index: unknown file mode for %s", path);
}
@@ -179,6 +195,9 @@ int checkout_entry(struct cache_entry *ce, struct checkout *state, char *topath)
*/
unlink(path);
if (S_ISDIR(st.st_mode)) {
+ /* If it is a gitlink, leave it alone! */
+ if (S_ISDIRLNK(ntohl(ce->ce_mode)))
+ return 0;
if (!state->force)
return error("%s is a directory", path);
remove_subtree(path);