X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=read-cache.c;h=248432af430d7e5b147898b2ac61f2ebbb468070;hb=9b0db33506ea9b1d968d719f2fce9c208c66cd95;hp=d9fb78bc559ac9de642833df5af63e33481cad52;hpb=7720c33f632c2d67b53169030a7ed2e0e6ae8fde;p=git-core%2Fgit.git

diff --git a/read-cache.c b/read-cache.c
index d9fb78bc5..248432af4 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -19,9 +19,6 @@
 #include "split-index.h"
 #include "utf8.h"
 
-static struct cache_entry *refresh_cache_entry(struct cache_entry *ce,
-					       unsigned int options);
-
 /* Mask for the name length in ce_flags in the on-disk index */
 
 #define CE_NAMEMASK  (0x0fff)
@@ -659,9 +656,10 @@ int add_to_index(struct index_state *istate, const char *path, struct stat *st,
 	else
 		ce->ce_flags |= CE_INTENT_TO_ADD;
 
-	if (trust_executable_bit && has_symlinks)
+
+	if (trust_executable_bit && has_symlinks) {
 		ce->ce_mode = create_ce_mode(st_mode);
-	else {
+	} else {
 		/* If there is an existing entry, pick the mode bits and type
 		 * from it, otherwise assume unexecutable regular file.
 		 */
@@ -756,6 +754,35 @@ struct cache_entry *make_cache_entry(unsigned int mode,
 	return ret;
 }
 
+/*
+ * Chmod an index entry with either +x or -x.
+ *
+ * Returns -1 if the chmod for the particular cache entry failed (if it's
+ * not a regular file), -2 if an invalid flip argument is passed in, 0
+ * otherwise.
+ */
+int chmod_index_entry(struct index_state *istate, struct cache_entry *ce,
+		      char flip)
+{
+	if (!S_ISREG(ce->ce_mode))
+		return -1;
+	switch (flip) {
+	case '+':
+		ce->ce_mode |= 0111;
+		break;
+	case '-':
+		ce->ce_mode &= ~0111;
+		break;
+	default:
+		return -2;
+	}
+	cache_tree_invalidate_path(istate, ce->name);
+	ce->ce_flags |= CE_UPDATE_IN_BASE;
+	istate->cache_changed |= CE_ENTRY_CHANGED;
+
+	return 0;
+}
+
 int ce_same_name(const struct cache_entry *a, const struct cache_entry *b)
 {
 	int len = ce_namelen(a);
@@ -1254,7 +1281,7 @@ int refresh_index(struct index_state *istate, unsigned int flags,
 	return has_errors;
 }
 
-static struct cache_entry *refresh_cache_entry(struct cache_entry *ce,
+struct cache_entry *refresh_cache_entry(struct cache_entry *ce,
 					       unsigned int options)
 {
 	return refresh_cache_ent(&the_index, ce, options, NULL, NULL);