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sha1_name: convert disambiguate_hint_fn to take object_id

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Convert this function pointer type and the functions that implement it
to take a struct object_id.  Introduce a temporary in
show_ambiguous_object to avoid having to convert for_each_abbrev at this
point.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
brian m. carlson 2017-03-26 16:01:34 +00:00 committed by Junio C Hamano
parent d2ee11859c
commit d2b7d9c7ed
1 changed files with 34 additions and 30 deletions
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64
sha1_name.c
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@ -11,7 +11,7 @@
static int get_sha1_oneline(const char *, unsigned char *, struct commit_list *);
typedef int (*disambiguate_hint_fn)(const unsigned char *, void *);
typedef int (*disambiguate_hint_fn)(const struct object_id *, void *);
struct disambiguate_state {
int len; /* length of prefix in hex chars */
@ -29,7 +29,7 @@ struct disambiguate_state {
unsigned always_call_fn:1;
};
static void update_candidates(struct disambiguate_state *ds, const unsigned char *current)
static void update_candidates(struct disambiguate_state *ds, const struct object_id *current)
{
if (ds->always_call_fn) {
ds->ambiguous = ds->fn(current, ds->cb_data) ? 1 : 0;
@ -37,10 +37,10 @@ static void update_candidates(struct disambiguate_state *ds, const unsigned char
}
if (!ds->candidate_exists) {
/* this is the first candidate */
hashcpy(ds->candidate.hash, current);
oidcpy(&ds->candidate, current);
ds->candidate_exists = 1;
return;
} else if (!hashcmp(ds->candidate.hash, current)) {
} else if (!oidcmp(&ds->candidate, current)) {
/* the same as what we already have seen */
return;
}
@ -52,14 +52,14 @@ static void update_candidates(struct disambiguate_state *ds, const unsigned char
}
if (!ds->candidate_checked) {
ds->candidate_ok = ds->fn(ds->candidate.hash, ds->cb_data);
ds->candidate_ok = ds->fn(&ds->candidate, ds->cb_data);
ds->disambiguate_fn_used = 1;
ds->candidate_checked = 1;
}
if (!ds->candidate_ok) {
/* discard the candidate; we know it does not satisfy fn */
hashcpy(ds->candidate.hash, current);
oidcpy(&ds->candidate, current);
ds->candidate_checked = 0;
return;
}
@ -107,15 +107,15 @@ static void find_short_object_filename(struct disambiguate_state *ds)
continue;
while (!ds->ambiguous && (de = readdir(dir)) != NULL) {
unsigned char sha1[20];
struct object_id oid;
if (strlen(de->d_name) != 38)
if (strlen(de->d_name) != GIT_SHA1_HEXSZ - 2)
continue;
if (memcmp(de->d_name, ds->hex_pfx + 2, ds->len - 2))
continue;
memcpy(hex + 2, de->d_name, 38);
if (!get_sha1_hex(hex, sha1))
update_candidates(ds, sha1);
memcpy(hex + 2, de->d_name, GIT_SHA1_HEXSZ - 2);
if (!get_oid_hex(hex, &oid))
update_candidates(ds, &oid);
}
closedir(dir);
}
@ -140,7 +140,7 @@ static void unique_in_pack(struct packed_git *p,
struct disambiguate_state *ds)
{
uint32_t num, last, i, first = 0;
const unsigned char *current = NULL;
const struct object_id *current = NULL;
open_pack_index(p);
num = p->num_objects;
@ -169,8 +169,9 @@ static void unique_in_pack(struct packed_git *p,
* 0, 1 or more objects that actually match(es).
*/
for (i = first; i < num && !ds->ambiguous; i++) {
current = nth_packed_object_sha1(p, i);
if (!match_sha(ds->len, ds->bin_pfx.hash, current))
struct object_id oid;
current = nth_packed_object_oid(&oid, p, i);
if (!match_sha(ds->len, ds->bin_pfx.hash, current->hash))
break;
update_candidates(ds, current);
}
@ -213,7 +214,7 @@ static int finish_object_disambiguation(struct disambiguate_state *ds,
* same repository!
*/
ds->candidate_ok = (!ds->disambiguate_fn_used ||
ds->fn(ds->candidate.hash, ds->cb_data));
ds->fn(&ds->candidate, ds->cb_data));
if (!ds->candidate_ok)
return SHORT_NAME_AMBIGUOUS;
@ -222,57 +223,57 @@ static int finish_object_disambiguation(struct disambiguate_state *ds,
return 0;
}
static int disambiguate_commit_only(const unsigned char *sha1, void *cb_data_unused)
static int disambiguate_commit_only(const struct object_id *oid, void *cb_data_unused)
{
int kind = sha1_object_info(sha1, NULL);
int kind = sha1_object_info(oid->hash, NULL);
return kind == OBJ_COMMIT;
}
static int disambiguate_committish_only(const unsigned char *sha1, void *cb_data_unused)
static int disambiguate_committish_only(const struct object_id *oid, void *cb_data_unused)
{
struct object *obj;
int kind;
kind = sha1_object_info(sha1, NULL);
kind = sha1_object_info(oid->hash, NULL);
if (kind == OBJ_COMMIT)
return 1;
if (kind != OBJ_TAG)
return 0;
/* We need to do this the hard way... */
obj = deref_tag(parse_object(sha1), NULL, 0);
obj = deref_tag(parse_object(oid->hash), NULL, 0);
if (obj && obj->type == OBJ_COMMIT)
return 1;
return 0;
}
static int disambiguate_tree_only(const unsigned char *sha1, void *cb_data_unused)
static int disambiguate_tree_only(const struct object_id *oid, void *cb_data_unused)
{
int kind = sha1_object_info(sha1, NULL);
int kind = sha1_object_info(oid->hash, NULL);
return kind == OBJ_TREE;
}
static int disambiguate_treeish_only(const unsigned char *sha1, void *cb_data_unused)
static int disambiguate_treeish_only(const struct object_id *oid, void *cb_data_unused)
{
struct object *obj;
int kind;
kind = sha1_object_info(sha1, NULL);
kind = sha1_object_info(oid->hash, NULL);
if (kind == OBJ_TREE || kind == OBJ_COMMIT)
return 1;
if (kind != OBJ_TAG)
return 0;
/* We need to do this the hard way... */
obj = deref_tag(parse_object(sha1), NULL, 0);
obj = deref_tag(parse_object(oid->hash), NULL, 0);
if (obj && (obj->type == OBJ_TREE || obj->type == OBJ_COMMIT))
return 1;
return 0;
}
static int disambiguate_blob_only(const unsigned char *sha1, void *cb_data_unused)
static int disambiguate_blob_only(const struct object_id *oid, void *cb_data_unused)
{
int kind = sha1_object_info(sha1, NULL);
int kind = sha1_object_info(oid->hash, NULL);
return kind == OBJ_BLOB;
}
@ -344,10 +345,13 @@ static int init_object_disambiguation(const char *name, int len,
static int show_ambiguous_object(const unsigned char *sha1, void *data)
{
const struct disambiguate_state *ds = data;
struct object_id oid;
struct strbuf desc = STRBUF_INIT;
int type;
if (ds->fn && !ds->fn(sha1, ds->cb_data))
hashcpy(oid.hash, sha1);
if (ds->fn && !ds->fn(&oid, ds->cb_data))
return 0;
type = sha1_object_info(sha1, NULL);
@ -422,9 +426,9 @@ static int get_short_sha1(const char *name, int len, unsigned char *sha1,
return status;
}
static int collect_ambiguous(const unsigned char *sha1, void *data)
static int collect_ambiguous(const struct object_id *oid, void *data)
{
sha1_array_append(data, sha1);
sha1_array_append(data, oid->hash);
return 0;
}