From f0807e62b42df51a079c730dcf4868de9ad44ea5 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 13 Apr 2007 09:26:04 -0700 Subject: [PATCH] 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 Signed-off-by: Junio C Hamano --- entry.c | 45 ++++++++++++++++++++++++++++++++------------- 1 file changed, 32 insertions(+), 13 deletions(-) diff --git a/entry.c b/entry.c index d72f81158..50ffae40c 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); -- 2.26.2