tvl-depot/third_party/git/oidset.c
Vincent Ambo f4609b896f merge(3p/git): Merge git subtree at v2.29.2
This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb
2020-11-21 19:45:56 +01:00

84 lines
1.8 KiB
C

#include "cache.h"
#include "oidset.h"
void oidset_init(struct oidset *set, size_t initial_size)
{
memset(&set->set, 0, sizeof(set->set));
if (initial_size)
kh_resize_oid_set(&set->set, initial_size);
}
int oidset_contains(const struct oidset *set, const struct object_id *oid)
{
khiter_t pos = kh_get_oid_set(&set->set, *oid);
return pos != kh_end(&set->set);
}
int oidset_insert(struct oidset *set, const struct object_id *oid)
{
int added;
kh_put_oid_set(&set->set, *oid, &added);
return !added;
}
int oidset_remove(struct oidset *set, const struct object_id *oid)
{
khiter_t pos = kh_get_oid_set(&set->set, *oid);
if (pos == kh_end(&set->set))
return 0;
kh_del_oid_set(&set->set, pos);
return 1;
}
void oidset_clear(struct oidset *set)
{
kh_release_oid_set(&set->set);
oidset_init(set, 0);
}
int oidset_size(struct oidset *set)
{
return kh_size(&set->set);
}
void oidset_parse_file(struct oidset *set, const char *path)
{
oidset_parse_file_carefully(set, path, NULL, NULL);
}
void oidset_parse_file_carefully(struct oidset *set, const char *path,
oidset_parse_tweak_fn fn, void *cbdata)
{
FILE *fp;
struct strbuf sb = STRBUF_INIT;
struct object_id oid;
fp = fopen(path, "r");
if (!fp)
die("could not open object name list: %s", path);
while (!strbuf_getline(&sb, fp)) {
const char *p;
const char *name;
/*
* Allow trailing comments, leading whitespace
* (including before commits), and empty or whitespace
* only lines.
*/
name = strchr(sb.buf, '#');
if (name)
strbuf_setlen(&sb, name - sb.buf);
strbuf_trim(&sb);
if (!sb.len)
continue;
if (parse_oid_hex(sb.buf, &oid, &p) || *p != '\0' ||
(fn && fn(&oid, cbdata)))
die("invalid object name: %s", sb.buf);
oidset_insert(set, &oid);
}
if (ferror(fp))
die_errno("Could not read '%s'", path);
fclose(fp);
strbuf_release(&sb);
}