xdl_merge(): fix a segmentation fault when refining conflicts

[git.git] / builtin-reflog.c

diff --git a/builtin-reflog.c b/builtin-reflog.c
index 4097c328ccdfc8c377ccf9c23a4330fe2020c5c8..d3f2f50d2bc7b4ef0f0e4801c70c5a15ff869f1f 100644 (file)
--- a/builtin-reflog.c
+++ b/builtin-reflog.c
@@ -5,6 +5,9 @@
 #include "dir.h"
 #include "tree-walk.h"
 
+static unsigned long default_reflog_expire;
+static unsigned long default_reflog_expire_unreachable;
+
 struct expire_reflog_cb {
        FILE *newlog;
        const char *ref;
@@ -80,7 +83,8 @@ static int expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1,
                goto prune;
 
        if ((timestamp < cb->expire_unreachable) &&
-           ((old && !in_merge_bases(old, cb->ref_commit)) ||
+           (!cb->ref_commit ||
+            (old && !in_merge_bases(old, cb->ref_commit)) ||
             (new && !in_merge_bases(new, cb->ref_commit))))
                goto prune;
 
@@ -126,10 +130,9 @@ static int expire_reflog(const char *ref, const unsigned char *sha1, int unused,
        }
 
        cb.ref_commit = lookup_commit_reference_gently(sha1, 1);
-       if (!cb.ref_commit) {
-               status = error("ref '%s' does not point at a commit", ref);
-               goto finish;
-       }
+       if (!cb.ref_commit)
+               fprintf(stderr,
+                       "warning: ref '%s' does not point at a commit\n", ref);
        cb.ref = ref;
        cb.expire_total = cmd->expire_total;
        cb.expire_unreachable = cmd->expire_unreachable;
@@ -150,6 +153,17 @@ static int expire_reflog(const char *ref, const unsigned char *sha1, int unused,
        return status;
 }
 
+static int reflog_expire_config(const char *var, const char *value)
+{
+       if (!strcmp(var, "gc.reflogexpire"))
+               default_reflog_expire = approxidate(value);
+       else if (!strcmp(var, "gc.reflogexpireunreachable"))
+               default_reflog_expire_unreachable = approxidate(value);
+       else
+               return git_default_config(var, value);
+       return 0;
+}
+
 static const char reflog_expire_usage[] =
 "git-reflog expire [--dry-run] [--expire=<time>] [--expire-unreachable=<time>] [--all] <refs>...";
 
@@ -159,11 +173,18 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
        unsigned long now = time(NULL);
        int i, status, do_all;
 
+       git_config(reflog_expire_config);
+
        save_commit_buffer = 0;
        do_all = status = 0;
        memset(&cb, 0, sizeof(cb));
-       cb.expire_total = now - 90 * 24 * 3600;
-       cb.expire_unreachable = now - 30 * 24 * 3600;
+
+       if (!default_reflog_expire_unreachable)
+               default_reflog_expire_unreachable = now - 30 * 24 * 3600;
+       if (!default_reflog_expire)
+               default_reflog_expire = now - 90 * 24 * 3600;
+       cb.expire_total = default_reflog_expire;
+       cb.expire_unreachable = default_reflog_expire_unreachable;
 
        for (i = 1; i < argc; i++) {
                const char *arg = argv[i];