update-index --index-info: adjust for funny-path quoting.

Although the sole current user uses -z to read this, we should be
prepared for somebody to feed non-z format to the command.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/update-index.c b/update-index.c
index ef82b86..a84836b 100644 (file)
--- a/update-index.c
+++ b/update-index.c
@@ -5,6 +5,7 @@
  */
 #include "cache.h"
 #include "strbuf.h"
+#include "quote.h"
 
 /*
  * Default to not allowing changes to the list of files. The
@@ -338,6 +339,7 @@ static void read_index_info(int line_termination)
        strbuf_init(&buf);
        while (1) {
                char *ptr;
+               char *path_name;
                unsigned char sha1[20];
                unsigned int mode;
 
@@ -352,14 +354,22 @@ static void read_index_info(int line_termination)
                        goto bad_line;
 
                ptr += 42;
-               if (!verify_path(ptr)) {
-                       fprintf(stderr, "Ignoring path %s\n", ptr);
+
+               if (line_termination && ptr[0] == '"')
+                       path_name = unquote_c_style(ptr, NULL);
+               else
+                       path_name = ptr;
+
+               if (!verify_path(path_name)) {
+                       fprintf(stderr, "Ignoring path %s\n", path_name);
+                       if (path_name != ptr)
+                               free(path_name);
                        continue;
                }
 
                if (!mode) {
                        /* mode == 0 means there is no such path -- remove */
-                       if (remove_file_from_cache(ptr))
+                       if (remove_file_from_cache(path_name))
                                die("git-update-index: unable to remove %s",
                                    ptr);
                }
@@ -369,10 +379,12 @@ static void read_index_info(int line_termination)
                         * ptr[-41] is at the beginning of sha1
                         */
                        ptr[-42] = ptr[-1] = 0;
-                       if (add_cacheinfo(buf.buf, ptr-41, ptr))
+                       if (add_cacheinfo(buf.buf, ptr-41, path_name))
                                die("git-update-index: unable to update %s",
-                                   ptr);
+                                   path_name);
                }
+               if (path_name != ptr)
+                       free(path_name);
                continue;
 
        bad_line: