Merge git://ozlabs.org/~paulus/gitk

diff --git a/rerere.c b/rerere.c
index 6a517aa383b75512ba77592616e084d74647b491..d90057b7695918e260e1778a522011dabaa3a37b 100644 (file)
--- a/rerere.c
+++ b/rerere.c
@@ -409,6 +409,8 @@ static int find_conflict(struct string_list *conflict)
 int rerere_remaining(struct string_list *merge_rr)
 {
        int i;
+       if (setup_rerere(merge_rr, RERERE_READONLY))
+               return 0;
        if (read_cache() < 0)
                return error("Could not read index");
 
@@ -603,8 +605,11 @@ int setup_rerere(struct string_list *merge_rr, int flags)
 
        if (flags & (RERERE_AUTOUPDATE|RERERE_NOAUTOUPDATE))
                rerere_autoupdate = !!(flags & RERERE_AUTOUPDATE);
-       fd = hold_lock_file_for_update(&write_lock, git_path_merge_rr(),
-                                      LOCK_DIE_ON_ERROR);
+       if (flags & RERERE_READONLY)
+               fd = 0;
+       else
+               fd = hold_lock_file_for_update(&write_lock, git_path_merge_rr(),
+                                              LOCK_DIE_ON_ERROR);
        read_rr(merge_rr);
        return fd;
 }
@@ -701,6 +706,9 @@ void rerere_gc(struct string_list *rr)
        int cutoff_noresolve = 15;
        int cutoff_resolve = 60;
 
+       if (setup_rerere(rr, 0) < 0)
+               return;
+
        git_config_get_int("gc.rerereresolved", &cutoff_resolve);
        git_config_get_int("gc.rerereunresolved", &cutoff_noresolve);
        git_config(git_default_config, NULL);
@@ -727,16 +735,21 @@ void rerere_gc(struct string_list *rr)
        for (i = 0; i < to_remove.nr; i++)
                unlink_rr_item(to_remove.items[i].string);
        string_list_clear(&to_remove, 0);
+       rollback_lock_file(&write_lock);
 }
 
 void rerere_clear(struct string_list *merge_rr)
 {
        int i;
 
+       if (setup_rerere(merge_rr, 0) < 0)
+               return;
+
        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());
+       rollback_lock_file(&write_lock);
 }