X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=read-cache.c;h=747b50a99a5009e64594fe4e8da11c827a8db336;hb=7da3bf372cfcd25ea44164afb90c306836b62e23;hp=605b35239674c72a272e1c0fc1fb886c4b75be46;hpb=5ead60e61987ec7a9ca18050838bb47aa51d3665;p=git.git

diff --git a/read-cache.c b/read-cache.c
index 605b35239..747b50a99 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -24,8 +24,6 @@ unsigned int active_nr, active_alloc, active_cache_changed;
 
 struct cache_tree *active_cache_tree;
 
-int cache_errno;
-
 static void *cache_mmap;
 static size_t cache_mmap_size;
 
@@ -59,20 +57,20 @@ static int ce_compare_data(struct cache_entry *ce, struct stat *st)
 
 	if (fd >= 0) {
 		unsigned char sha1[20];
-		if (!index_fd(sha1, fd, st, 0, NULL))
+		if (!index_fd(sha1, fd, st, 0, OBJ_BLOB, ce->name))
 			match = hashcmp(sha1, ce->sha1);
 		/* index_fd() closed the file descriptor already */
 	}
 	return match;
 }
 
-static int ce_compare_link(struct cache_entry *ce, unsigned long expected_size)
+static int ce_compare_link(struct cache_entry *ce, size_t expected_size)
 {
 	int match = -1;
 	char *target;
 	void *buffer;
 	unsigned long size;
-	char type[10];
+	enum object_type type;
 	int len;
 
 	target = xmalloc(expected_size);
@@ -81,7 +79,7 @@ static int ce_compare_link(struct cache_entry *ce, unsigned long expected_size)
 		free(target);
 		return -1;
 	}
-	buffer = read_sha1_file(ce->sha1, type, &size);
+	buffer = read_sha1_file(ce->sha1, &type, &size);
 	if (!buffer) {
 		free(target);
 		return -1;
@@ -101,7 +99,7 @@ static int ce_modified_check_fs(struct cache_entry *ce, struct stat *st)
 			return DATA_CHANGED;
 		break;
 	case S_IFLNK:
-		if (ce_compare_link(ce, st->st_size))
+		if (ce_compare_link(ce, xsize_t(st->st_size)))
 			return DATA_CHANGED;
 		break;
 	default:
@@ -125,7 +123,9 @@ static int ce_match_stat_basic(struct cache_entry *ce, struct stat *st)
 			changed |= MODE_CHANGED;
 		break;
 	case S_IFLNK:
-		changed |= !S_ISLNK(st->st_mode) ? TYPE_CHANGED : 0;
+		if (!S_ISLNK(st->st_mode) &&
+		    (has_symlinks || !S_ISREG(st->st_mode)))
+			changed |= TYPE_CHANGED;
 		break;
 	default:
 		die("internal error: ce_mode is %o", ntohl(ce->ce_mode));
@@ -344,11 +344,11 @@ int add_file_to_index(const char *path, int verbose)
 	ce->ce_flags = htons(namelen);
 	fill_stat_cache_info(ce, &st);
 
-	if (trust_executable_bit)
+	if (trust_executable_bit && has_symlinks)
 		ce->ce_mode = create_ce_mode(st.st_mode);
 	else {
-		/* If there is an existing entry, pick the mode bits
-		 * from it, otherwise assume unexecutable.
+		/* If there is an existing entry, pick the mode bits and type
+		 * from it, otherwise assume unexecutable regular file.
 		 */
 		struct cache_entry *ent;
 		int pos = cache_name_pos(path, namelen);
@@ -641,14 +641,15 @@ int add_cache_entry(struct cache_entry *ce, int option)
  * For example, you'd want to do this after doing a "git-read-tree",
  * to link up the stat cache details with the proper files.
  */
-struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really)
+static struct cache_entry *refresh_cache_ent(struct cache_entry *ce, int really, int *err)
 {
 	struct stat st;
 	struct cache_entry *updated;
 	int changed, size;
 
 	if (lstat(ce->name, &st) < 0) {
-		cache_errno = errno;
+		if (err)
+			*err = errno;
 		return NULL;
 	}
 
@@ -662,7 +663,8 @@ struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really)
 	}
 
 	if (ce_modified(ce, &st, really)) {
-		cache_errno = EINVAL;
+		if (err)
+			*err = EINVAL;
 		return NULL;
 	}
 
@@ -694,6 +696,8 @@ int refresh_cache(unsigned int flags)
 
 	for (i = 0; i < active_nr; i++) {
 		struct cache_entry *ce, *new;
+		int cache_errno = 0;
+
 		ce = active_cache[i];
 		if (ce_stage(ce)) {
 			while ((i < active_nr) &&
@@ -707,7 +711,7 @@ int refresh_cache(unsigned int flags)
 			continue;
 		}
 
-		new = refresh_cache_entry(ce, really);
+		new = refresh_cache_ent(ce, really, &cache_errno);
 		if (new == ce)
 			continue;
 		if (!new) {
@@ -735,6 +739,11 @@ int refresh_cache(unsigned int flags)
 	return has_errors;
 }
 
+struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really)
+{
+	return refresh_cache_ent(ce, really, NULL);
+}
+
 static int verify_hdr(struct cache_header *hdr, unsigned long size)
 {
 	SHA_CTX c;
@@ -795,7 +804,7 @@ int read_cache_from(const char *path)
 	}
 
 	if (!fstat(fd, &st)) {
-		cache_mmap_size = st.st_size;
+		cache_mmap_size = xsize_t(st.st_size);
 		errno = EINVAL;
 		if (cache_mmap_size >= sizeof(struct cache_header) + 20)
 			cache_mmap = xmmap(NULL, cache_mmap_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);