builtin-blame: Reencode commit messages according to git-log rules.

diff --git a/log-tree.c b/log-tree.c
index bd8b9e45ab46b8664c8b7016b33bee22f86c9e0d..cec3c061360e9d33068fdb6c2555b69cc11f6771 100644 (file)
--- a/log-tree.c
+++ b/log-tree.c
@@ -1,12 +1,48 @@
 #include "cache.h"
 #include "diff.h"
 #include "commit.h"
+#include "tag.h"
 #include "graph.h"
 #include "log-tree.h"
 #include "reflog-walk.h"
+#include "refs.h"
 
 struct decoration name_decoration = { "object names" };
 
+static void add_name_decoration(const char *prefix, const char *name, struct object *obj)
+{
+       int plen = strlen(prefix);
+       int nlen = strlen(name);
+       struct name_decoration *res = xmalloc(sizeof(struct name_decoration) + plen + nlen);
+       memcpy(res->name, prefix, plen);
+       memcpy(res->name + plen, name, nlen + 1);
+       res->next = add_decoration(&name_decoration, obj, res);
+}
+
+static int add_ref_decoration(const char *refname, const unsigned char *sha1, int flags, void *cb_data)
+{
+       struct object *obj = parse_object(sha1);
+       if (!obj)
+               return 0;
+       add_name_decoration("", refname, obj);
+       while (obj->type == OBJ_TAG) {
+               obj = ((struct tag *)obj)->tagged;
+               if (!obj)
+                       break;
+               add_name_decoration("tag: ", refname, obj);
+       }
+       return 0;
+}
+
+void load_ref_decorations(void)
+{
+       static int loaded;
+       if (!loaded) {
+               loaded = 1;
+               for_each_ref(add_ref_decoration, NULL);
+       }
+}
+
 static void show_parents(struct commit *commit, int abbrev)
 {
        struct commit_list *p;
@@ -216,7 +252,7 @@ void log_write_email_headers(struct rev_info *opt, const char *name,
 
 void show_log(struct rev_info *opt)
 {
-       struct strbuf msgbuf;
+       struct strbuf msgbuf = STRBUF_INIT;
        struct log_info *log = opt->loginfo;
        struct commit *commit = log->commit, *parent = log->parent;
        int abbrev = opt->diffopt.abbrev;
@@ -345,7 +381,6 @@ void show_log(struct rev_info *opt)
        /*
         * And then the pretty-printed message itself
         */
-       strbuf_init(&msgbuf, 0);
        if (need_8bit_cte >= 0)
                need_8bit_cte = has_non_ascii(opt->add_signoff);
        pretty_print_commit(opt->commit_format, commit, &msgbuf,
@@ -432,7 +467,7 @@ static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log
        struct commit_list *parents;
        unsigned const char *sha1 = commit->object.sha1;
 
-       if (!opt->diff)
+       if (!opt->diff && !DIFF_OPT_TST(&opt->diffopt, EXIT_WITH_STATUS))
                return 0;
 
        /* Root commit? */