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builtin-blame.c: move prepare_final() into a separate function.

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After parsing the command line, we have a long loop to compute the commit
object to start annotating from.  Move the logic to a separate function,
so that later patches become easier to read.

It also makes fill_origin_blob() return void; the check is always done
on !file->ptr, and nobody looks at the return value from the function.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2008-04-02 22:17:53 -07:00
parent 72276a3ecb
commit f6c07d7d47
1 changed files with 33 additions and 23 deletions
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56
builtin-blame.c
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@ -91,7 +91,7 @@ struct origin {
* Given an origin, prepare mmfile_t structure to be used by the
* diff machinery
*/
static char *fill_origin_blob(struct origin *o, mmfile_t *file)
static void fill_origin_blob(struct origin *o, mmfile_t *file)
{
if (!o->file.ptr) {
enum object_type type;
@ -106,7 +106,6 @@ static char *fill_origin_blob(struct origin *o, mmfile_t *file)
}
else
*file = o->file;
return file->ptr;
}
/*
@ -2006,6 +2005,10 @@ static int git_blame_config(const char *var, const char *value)
return git_default_config(var, value);
}
/*
* Prepare a dummy commit that represents the work tree (or staged) item.
* Note that annotating work tree item never works in the reverse.
*/
static struct commit *fake_working_tree_commit(const char *path, const char *contents_from)
{
struct commit *commit;
@ -2122,6 +2125,33 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con
return commit;
}
static const char *prepare_final(struct scoreboard *sb, struct rev_info *revs)
{
int i;
const char *final_commit_name = NULL;
/*
* There must be one and only one positive commit in the
* revs->pending array.
*/
for (i = 0; i < revs->pending.nr; i++) {
struct object *obj = revs->pending.objects[i].item;
if (obj->flags & UNINTERESTING)
continue;
while (obj->type == OBJ_TAG)
obj = deref_tag(obj, NULL, 0);
if (obj->type != OBJ_COMMIT)
die("Non commit %s?", revs->pending.objects[i].name);
if (sb->final)
die("More than one commit to dig from %s and %s?",
revs->pending.objects[i].name,
final_commit_name);
sb->final = (struct commit *) obj;
final_commit_name = revs->pending.objects[i].name;
}
return final_commit_name;
}
int cmd_blame(int argc, const char **argv, const char *prefix)
{
struct rev_info revs;
@ -2327,27 +2357,7 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
setup_revisions(unk, argv, &revs, NULL);
memset(&sb, 0, sizeof(sb));
/*
* There must be one and only one positive commit in the
* revs->pending array.
*/
for (i = 0; i < revs.pending.nr; i++) {
struct object *obj = revs.pending.objects[i].item;
if (obj->flags & UNINTERESTING)
continue;
while (obj->type == OBJ_TAG)
obj = deref_tag(obj, NULL, 0);
if (obj->type != OBJ_COMMIT)
die("Non commit %s?",
revs.pending.objects[i].name);
if (sb.final)
die("More than one commit to dig from %s and %s?",
revs.pending.objects[i].name,
final_commit_name);
sb.final = (struct commit *) obj;
final_commit_name = revs.pending.objects[i].name;
}
final_commit_name = prepare_final(&sb, &revs);
if (!sb.final) {
/*
* "--not A B -- path" without anything positive;