blame: create scoreboard setup function

Create function that completes setting up blame_scoreboard structure.

Signed-off-by: Jeff Smith <whydoubt@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff Smith 2017-05-24 00:15:30 -05:00 committed by Junio C Hamano
parent 6e4c9b5bcf
commit d0d0ef1f67

View file

@ -2544,6 +2544,105 @@ void init_scoreboard(struct blame_scoreboard *sb)
sb->copy_score = BLAME_DEFAULT_COPY_SCORE;
}
void setup_scoreboard(struct blame_scoreboard *sb, const char *path, struct blame_origin **orig)
{
const char *final_commit_name = NULL;
struct blame_origin *o;
struct commit *final_commit = NULL;
enum object_type type;
if (sb->reverse && sb->contents_from)
die(_("--contents and --reverse do not blend well."));
if (!sb->reverse) {
sb->final = find_single_final(sb->revs, &final_commit_name);
sb->commits.compare = compare_commits_by_commit_date;
} else {
sb->final = find_single_initial(sb->revs, &final_commit_name);
sb->commits.compare = compare_commits_by_reverse_commit_date;
}
if (sb->final && sb->contents_from)
die(_("cannot use --contents with final commit object name"));
if (sb->reverse && sb->revs->first_parent_only)
sb->revs->children.name = NULL;
if (!sb->final) {
/*
* "--not A B -- path" without anything positive;
* do not default to HEAD, but use the working tree
* or "--contents".
*/
setup_work_tree();
sb->final = fake_working_tree_commit(&sb->revs->diffopt,
path, sb->contents_from);
add_pending_object(sb->revs, &(sb->final->object), ":");
}
if (sb->reverse && sb->revs->first_parent_only) {
final_commit = find_single_final(sb->revs, NULL);
if (!final_commit)
die(_("--reverse and --first-parent together require specified latest commit"));
}
/*
* If we have bottom, this will mark the ancestors of the
* bottom commits we would reach while traversing as
* uninteresting.
*/
if (prepare_revision_walk(sb->revs))
die(_("revision walk setup failed"));
if (sb->reverse && sb->revs->first_parent_only) {
struct commit *c = final_commit;
sb->revs->children.name = "children";
while (c->parents &&
oidcmp(&c->object.oid, &sb->final->object.oid)) {
struct commit_list *l = xcalloc(1, sizeof(*l));
l->item = c;
if (add_decoration(&sb->revs->children,
&c->parents->item->object, l))
die("BUG: not unique item in first-parent chain");
c = c->parents->item;
}
if (oidcmp(&c->object.oid, &sb->final->object.oid))
die(_("--reverse --first-parent together require range along first-parent chain"));
}
if (is_null_oid(&sb->final->object.oid)) {
o = sb->final->util;
sb->final_buf = xmemdupz(o->file.ptr, o->file.size);
sb->final_buf_size = o->file.size;
}
else {
o = get_origin(sb->final, path);
if (fill_blob_sha1_and_mode(o))
die(_("no such path %s in %s"), path, final_commit_name);
if (DIFF_OPT_TST(&sb->revs->diffopt, ALLOW_TEXTCONV) &&
textconv_object(path, o->mode, &o->blob_oid, 1, (char **) &sb->final_buf,
&sb->final_buf_size))
;
else
sb->final_buf = read_sha1_file(o->blob_oid.hash, &type,
&sb->final_buf_size);
if (!sb->final_buf)
die(_("cannot read blob %s for path %s"),
oid_to_hex(&o->blob_oid),
path);
}
sb->num_read_blob++;
prepare_lines(sb);
if (orig)
*orig = o;
}
int cmd_blame(int argc, const char **argv, const char *prefix)
{
struct rev_info revs;
@ -2552,9 +2651,6 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
struct blame_origin *o;
struct blame_entry *ent = NULL;
long dashdash_pos, lno;
const char *final_commit_name = NULL;
enum object_type type;
struct commit *final_commit = NULL;
struct progress_info pi = { NULL, 0 };
struct string_list range_list = STRING_LIST_INIT_NODUP;
@ -2759,92 +2855,8 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
sb.revs = &revs;
sb.contents_from = contents_from;
sb.reverse = reverse;
if (!reverse) {
sb.final = find_single_final(&revs, &final_commit_name);
sb.commits.compare = compare_commits_by_commit_date;
}
else if (contents_from)
die(_("--contents and --reverse do not blend well."));
else {
sb.final = find_single_initial(&revs, &final_commit_name);
sb.commits.compare = compare_commits_by_reverse_commit_date;
if (revs.first_parent_only)
revs.children.name = NULL;
}
if (!sb.final) {
/*
* "--not A B -- path" without anything positive;
* do not default to HEAD, but use the working tree
* or "--contents".
*/
setup_work_tree();
sb.final = fake_working_tree_commit(&sb.revs->diffopt,
path, contents_from);
add_pending_object(&revs, &(sb.final->object), ":");
}
else if (contents_from)
die(_("cannot use --contents with final commit object name"));
if (reverse && revs.first_parent_only) {
final_commit = find_single_final(sb.revs, NULL);
if (!final_commit)
die(_("--reverse and --first-parent together require specified latest commit"));
}
/*
* If we have bottom, this will mark the ancestors of the
* bottom commits we would reach while traversing as
* uninteresting.
*/
if (prepare_revision_walk(&revs))
die(_("revision walk setup failed"));
if (reverse && revs.first_parent_only) {
struct commit *c = final_commit;
sb.revs->children.name = "children";
while (c->parents &&
oidcmp(&c->object.oid, &sb.final->object.oid)) {
struct commit_list *l = xcalloc(1, sizeof(*l));
l->item = c;
if (add_decoration(&sb.revs->children,
&c->parents->item->object, l))
die("BUG: not unique item in first-parent chain");
c = c->parents->item;
}
if (oidcmp(&c->object.oid, &sb.final->object.oid))
die(_("--reverse --first-parent together require range along first-parent chain"));
}
if (is_null_oid(&sb.final->object.oid)) {
o = sb.final->util;
sb.final_buf = xmemdupz(o->file.ptr, o->file.size);
sb.final_buf_size = o->file.size;
}
else {
o = get_origin(sb.final, path);
if (fill_blob_sha1_and_mode(o))
die(_("no such path %s in %s"), path, final_commit_name);
if (DIFF_OPT_TST(&sb.revs->diffopt, ALLOW_TEXTCONV) &&
textconv_object(path, o->mode, &o->blob_oid, 1, (char **) &sb.final_buf,
&sb.final_buf_size))
;
else
sb.final_buf = read_sha1_file(o->blob_oid.hash, &type,
&sb.final_buf_size);
if (!sb.final_buf)
die(_("cannot read blob %s for path %s"),
oid_to_hex(&o->blob_oid),
path);
}
sb.num_read_blob++;
lno = prepare_lines(&sb);
setup_scoreboard(&sb, path, &o);
lno = sb.num_lines;
if (lno && !range_list.nr)
string_list_append(&range_list, "1");