static void name_rev(struct commit *commit,
const char *tip_name, int generation, int distance,
int deref)
{
struct rev_name *name = (struct rev_name *)commit->util;
struct commit_list *parents;
int parent_number = 1;
parse_commit(commit);
if (commit->date < cutoff)
return;
if (deref) {
tip_name = xstrfmt("%s^0", tip_name);
if (generation)
die("generation: %d, but deref?", generation);
}
if (name == NULL) {
name = xmalloc(sizeof(rev_name));
commit->util = name;
goto copy_data;
} else if (name->distance > distance) {
copy_data:
name->tip_name = tip_name;
name->generation = generation;
name->distance = distance;
} else
return;
for (parents = commit->parents;
parents;
parents = parents->next, parent_number++) {
if (parent_number > 1) {
int len = strlen(tip_name);
char *new_name = xmalloc(len +
1 + decimal_length(generation) + /* ~<n> */
1 + 2 + /* ^NN */
1);
if (len > 2 && !strcmp(tip_name + len - 2, "^0"))
len -= 2;
if (generation > 0)
sprintf(new_name, "%.*s~%d^%d", len, tip_name,
generation, parent_number);
else
sprintf(new_name, "%.*s^%d", len, tip_name,
parent_number);
name_rev(parents->item, new_name, 0,
distance + MERGE_TRAVERSAL_WEIGHT, 0);
} else {
name_rev(parents->item, tip_name, generation + 1,
distance + 1, 0);
}
}
}
static void name_rev(struct commit *commit,
const char *tip_name, int generation, int distance,
int deref)
{
struct rev_name *name = (struct rev_name *)commit->util;
struct commit_list *parents;
int parent_number = 1;
parse_commit(commit);
if (commit->date < cutoff)
return;
if (deref) {
tip_name = xstrfmt("%s^0", tip_name);
if (generation)
die("generation: %d, but deref?", generation);
}
if (name == NULL) {
name = xmalloc(sizeof(rev_name));
commit->util = name;
goto copy_data;
} else if (name->distance > distance) {
copy_data:
name->tip_name = tip_name;
name->generation = generation;
name->distance = distance;
} else
return;
for (parents = commit->parents;
parents;
parents = parents->next, parent_number++) {
if (parent_number > 1) {
size_t len;
char *new_name;
strip_suffix(tip_name, "^0", &len);
if (generation > 0)
new_name = xstrfmt("%.*s~%d^%d", (int)len, tip_name,
generation, parent_number);
else
new_name = xstrfmt("%.*s^%d", (int)len, tip_name,
parent_number);
name_rev(parents->item, new_name, 0,
distance + MERGE_TRAVERSAL_WEIGHT, 0);
} else {
name_rev(parents->item, tip_name, generation + 1,
distance + 1, 0);
}
}
}
static int name_ref(const char *path, const unsigned char *sha1, int flags, void *cb_data)
{
struct object *o = parse_object(sha1);
struct name_ref_data *data = cb_data;
int deref = 0;
if (data->tags_only && prefixcmp(path, "refs/tags/"))
return 0;
if (data->ref_filter && fnmatch(data->ref_filter, path, 0))
return 0;
while (o && o->type == OBJ_TAG) {
struct tag *t = (struct tag *) o;
if (!t->tagged)
break; /* broken repository */
o = parse_object(t->tagged->sha1);
deref = 1;
}
if (o && o->type == OBJ_COMMIT) {
struct commit *commit = (struct commit *)o;
if (!prefixcmp(path, "refs/heads/"))
path = path + 11;
else if (data->tags_only
&& data->name_only
&& !prefixcmp(path, "refs/tags/"))
path = path + 10;
else if (!prefixcmp(path, "refs/"))
path = path + 5;
name_rev(commit, xstrdup(path), 0, 0, deref);
}
return 0;
}
static int name_ref(const char *path, const struct object_id *oid, int flags, void *cb_data)
{
struct object *o = parse_object(oid->hash);
struct name_ref_data *data = cb_data;
int can_abbreviate_output = data->tags_only && data->name_only;
int deref = 0;
if (data->tags_only && !starts_with(path, "refs/tags/"))
return 0;
if (data->ref_filter) {
switch (subpath_matches(path, data->ref_filter)) {
case -1: /* did not match */
return 0;
case 0: /* matched fully */
break;
default: /* matched subpath */
can_abbreviate_output = 1;
break;
}
}
add_to_tip_table(oid->hash, path, can_abbreviate_output);
while (o && o->type == OBJ_TAG) {
struct tag *t = (struct tag *) o;
if (!t->tagged)
break; /* broken repository */
o = parse_object(t->tagged->oid.hash);
deref = 1;
}
if (o && o->type == OBJ_COMMIT) {
struct commit *commit = (struct commit *)o;
path = name_ref_abbrev(path, can_abbreviate_output);
name_rev(commit, xstrdup(path), 0, 0, deref);
}
return 0;
}
