do not overwrite files in leading path

diff --git a/builtin/rerere.c b/builtin/rerere.c
index 67793fa2c795777b02c340551a5c4cee152ff68b..642bf35587ed994948d3eeac0a189ae29e39bf11 100644 (file)
--- a/builtin/rerere.c
+++ b/builtin/rerere.c
@@ -1,13 +1,16 @@
 #include "builtin.h"
 #include "cache.h"
 #include "dir.h"
+#include "parse-options.h"
 #include "string-list.h"
 #include "rerere.h"
 #include "xdiff/xdiff.h"
 #include "xdiff-interface.h"
 
-static const char git_rerere_usage[] =
-"git rerere [clear | status | diff | gc]";
+static const char * const rerere_usage[] = {
+       "git rerere [clear | status | diff | gc]",
+       NULL,
+};
 
 /* these values are days */
 static int cutoff_noresolve = 15;
@@ -114,25 +117,26 @@ static int diff_two(const char *file1, const char *label1,
 int cmd_rerere(int argc, const char **argv, const char *prefix)
 {
        struct string_list merge_rr = STRING_LIST_INIT_DUP;
-       int i, fd, flags = 0;
-
-       if (2 < argc) {
-               if (!strcmp(argv[1], "-h"))
-                       usage(git_rerere_usage);
-               if (!strcmp(argv[1], "--rerere-autoupdate"))
-                       flags = RERERE_AUTOUPDATE;
-               else if (!strcmp(argv[1], "--no-rerere-autoupdate"))
-                       flags = RERERE_NOAUTOUPDATE;
-               if (flags) {
-                       argc--;
-                       argv++;
-               }
-       }
-       if (argc < 2)
+       int i, fd, autoupdate = -1, flags = 0;
+
+       struct option options[] = {
+               OPT_SET_INT(0, "rerere-autoupdate", &autoupdate,
+                       "register clean resolutions in index", 1),
+               OPT_END(),
+       };
+
+       argc = parse_options(argc, argv, prefix, options, rerere_usage, 0);
+
+       if (autoupdate == 1)
+               flags = RERERE_AUTOUPDATE;
+       if (autoupdate == 0)
+               flags = RERERE_NOAUTOUPDATE;
+
+       if (argc < 1)
                return rerere(flags);
 
-       if (!strcmp(argv[1], "forget")) {
-               const char **pathspec = get_pathspec(prefix, argv + 2);
+       if (!strcmp(argv[0], "forget")) {
+               const char **pathspec = get_pathspec(prefix, argv + 1);
                return rerere_forget(pathspec);
        }
 
@@ -140,26 +144,26 @@ int cmd_rerere(int argc, const char **argv, const char *prefix)
        if (fd < 0)
                return 0;
 
-       if (!strcmp(argv[1], "clear")) {
+       if (!strcmp(argv[0], "clear")) {
                for (i = 0; i < merge_rr.nr; i++) {
                        const char *name = (const char *)merge_rr.items[i].util;
                        if (!has_rerere_resolution(name))
                                unlink_rr_item(name);
                }
                unlink_or_warn(git_path("MERGE_RR"));
-       } else if (!strcmp(argv[1], "gc"))
+       } else if (!strcmp(argv[0], "gc"))
                garbage_collect(&merge_rr);
-       else if (!strcmp(argv[1], "status"))
+       else if (!strcmp(argv[0], "status"))
                for (i = 0; i < merge_rr.nr; i++)
                        printf("%s\n", merge_rr.items[i].string);
-       else if (!strcmp(argv[1], "diff"))
+       else if (!strcmp(argv[0], "diff"))
                for (i = 0; i < merge_rr.nr; i++) {
                        const char *path = merge_rr.items[i].string;
                        const char *name = (const char *)merge_rr.items[i].util;
                        diff_two(rerere_path(name, "preimage"), path, path, path);
                }
        else
-               usage(git_rerere_usage);
+               usage_with_options(rerere_usage, options);
 
        string_list_clear(&merge_rr, 1);
        return 0;