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Diffstat (limited to 'sha1_name.c')
-rw-r--r--sha1_name.c192
1 files changed, 103 insertions, 89 deletions
diff --git a/sha1_name.c b/sha1_name.c
index 26ceec1d79..74fcb6d788 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -1,4 +1,5 @@
#include "cache.h"
+#include "config.h"
#include "tag.h"
#include "commit.h"
#include "tree.h"
@@ -11,16 +12,16 @@
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 */
- char hex_pfx[GIT_SHA1_HEXSZ + 1];
- unsigned char bin_pfx[GIT_SHA1_RAWSZ];
+ char hex_pfx[GIT_MAX_HEXSZ + 1];
+ struct object_id bin_pfx;
disambiguate_hint_fn fn;
void *cb_data;
- unsigned char candidate[GIT_SHA1_RAWSZ];
+ struct object_id candidate;
unsigned candidate_exists:1;
unsigned candidate_checked:1;
unsigned candidate_ok:1;
@@ -29,7 +30,7 @@ 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 +38,10 @@ static void update_candidates(struct disambiguate_state *ds, const unsigned char
}
if (!ds->candidate_exists) {
/* this is the first candidate */
- hashcpy(ds->candidate, current);
+ oidcpy(&ds->candidate, current);
ds->candidate_exists = 1;
return;
- } else if (!hashcmp(ds->candidate, current)) {
+ } else if (!oidcmp(&ds->candidate, current)) {
/* the same as what we already have seen */
return;
}
@@ -52,14 +53,14 @@ static void update_candidates(struct disambiguate_state *ds, const unsigned char
}
if (!ds->candidate_checked) {
- ds->candidate_ok = ds->fn(ds->candidate, 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, current);
+ oidcpy(&ds->candidate, current);
ds->candidate_checked = 0;
return;
}
@@ -77,10 +78,19 @@ static void update_candidates(struct disambiguate_state *ds, const unsigned char
/* otherwise, current can be discarded and candidate is still good */
}
+static int append_loose_object(const struct object_id *oid, const char *path,
+ void *data)
+{
+ oid_array_append(data, oid);
+ return 0;
+}
+
+static int match_sha(unsigned, const unsigned char *, const unsigned char *);
+
static void find_short_object_filename(struct disambiguate_state *ds)
{
+ int subdir_nr = ds->bin_pfx.hash[0];
struct alternate_object_database *alt;
- char hex[GIT_SHA1_HEXSZ];
static struct alternate_object_database *fakeent;
if (!fakeent) {
@@ -95,29 +105,29 @@ static void find_short_object_filename(struct disambiguate_state *ds)
}
fakeent->next = alt_odb_list;
- xsnprintf(hex, sizeof(hex), "%.2s", ds->hex_pfx);
for (alt = fakeent; alt && !ds->ambiguous; alt = alt->next) {
- struct strbuf *buf = alt_scratch_buf(alt);
- struct dirent *de;
- DIR *dir;
-
- strbuf_addf(buf, "%.2s/", ds->hex_pfx);
- dir = opendir(buf->buf);
- if (!dir)
- continue;
+ int pos;
- while (!ds->ambiguous && (de = readdir(dir)) != NULL) {
- unsigned char sha1[20];
+ if (!alt->loose_objects_subdir_seen[subdir_nr]) {
+ struct strbuf *buf = alt_scratch_buf(alt);
+ for_each_file_in_obj_subdir(subdir_nr, buf,
+ append_loose_object,
+ NULL, NULL,
+ &alt->loose_objects_cache);
+ alt->loose_objects_subdir_seen[subdir_nr] = 1;
+ }
- if (strlen(de->d_name) != 38)
- 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);
+ pos = oid_array_lookup(&alt->loose_objects_cache, &ds->bin_pfx);
+ if (pos < 0)
+ pos = -1 - pos;
+ while (!ds->ambiguous && pos < alt->loose_objects_cache.nr) {
+ const struct object_id *oid;
+ oid = alt->loose_objects_cache.oid + pos;
+ if (!match_sha(ds->len, ds->bin_pfx.hash, oid->hash))
+ break;
+ update_candidates(ds, oid);
+ pos++;
}
- closedir(dir);
}
}
@@ -140,7 +150,7 @@ 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;
@@ -151,7 +161,7 @@ static void unique_in_pack(struct packed_git *p,
int cmp;
current = nth_packed_object_sha1(p, mid);
- cmp = hashcmp(ds->bin_pfx, current);
+ cmp = hashcmp(ds->bin_pfx.hash, current);
if (!cmp) {
first = mid;
break;
@@ -169,8 +179,9 @@ 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, 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);
}
@@ -213,66 +224,66 @@ static int finish_object_disambiguation(struct disambiguate_state *ds,
* same repository!
*/
ds->candidate_ok = (!ds->disambiguate_fn_used ||
- ds->fn(ds->candidate, ds->cb_data));
+ ds->fn(&ds->candidate, ds->cb_data));
if (!ds->candidate_ok)
return SHORT_NAME_AMBIGUOUS;
- hashcpy(sha1, ds->candidate);
+ hashcpy(sha1, ds->candidate.hash);
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), 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), 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;
}
@@ -332,7 +343,7 @@ static int init_object_disambiguation(const char *name, int len,
ds->hex_pfx[i] = c;
if (!(i & 1))
val <<= 4;
- ds->bin_pfx[i >> 1] |= val;
+ ds->bin_pfx.hash[i >> 1] |= val;
}
ds->len = len;
@@ -341,31 +352,32 @@ static int init_object_disambiguation(const char *name, int len,
return 0;
}
-static int show_ambiguous_object(const unsigned char *sha1, void *data)
+static int show_ambiguous_object(const struct object_id *oid, void *data)
{
const struct disambiguate_state *ds = data;
struct strbuf desc = STRBUF_INIT;
int type;
- if (ds->fn && !ds->fn(sha1, ds->cb_data))
+
+ if (ds->fn && !ds->fn(oid, ds->cb_data))
return 0;
- type = sha1_object_info(sha1, NULL);
+ type = sha1_object_info(oid->hash, NULL);
if (type == OBJ_COMMIT) {
- struct commit *commit = lookup_commit(sha1);
+ struct commit *commit = lookup_commit(oid);
if (commit) {
struct pretty_print_context pp = {0};
pp.date_mode.type = DATE_SHORT;
format_commit_message(commit, " %ad - %s", &desc, &pp);
}
} else if (type == OBJ_TAG) {
- struct tag *tag = lookup_tag(sha1);
+ struct tag *tag = lookup_tag(oid);
if (!parse_tag(tag) && tag->tag)
strbuf_addf(&desc, " %s", tag->tag);
}
advise(" %s %s%s",
- find_unique_abbrev(sha1, DEFAULT_ABBREV),
+ find_unique_abbrev(oid->hash, DEFAULT_ABBREV),
typename(type) ? typename(type) : "unknown type",
desc.buf);
@@ -422,15 +434,15 @@ 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);
+ oid_array_append(data, oid);
return 0;
}
int for_each_abbrev(const char *prefix, each_abbrev_fn fn, void *cb_data)
{
- struct sha1_array collect = SHA1_ARRAY_INIT;
+ struct oid_array collect = OID_ARRAY_INIT;
struct disambiguate_state ds;
int ret;
@@ -443,8 +455,8 @@ int for_each_abbrev(const char *prefix, each_abbrev_fn fn, void *cb_data)
find_short_object_filename(&ds);
find_short_packed_object(&ds);
- ret = sha1_array_for_each_unique(&collect, fn, cb_data);
- sha1_array_clear(&collect);
+ ret = oid_array_for_each_unique(&collect, fn, cb_data);
+ oid_array_clear(&collect);
return ret;
}
@@ -477,10 +489,9 @@ int find_unique_abbrev_r(char *hex, const unsigned char *sha1, int len)
* We now know we have on the order of 2^len objects, which
* expects a collision at 2^(len/2). But we also care about hex
* chars, not bits, and there are 4 bits per hex. So all
- * together we need to divide by 2; but we also want to round
- * odd numbers up, hence adding one before dividing.
+ * together we need to divide by 2 and round up.
*/
- len = (len + 1) / 2;
+ len = DIV_ROUND_UP(len, 2);
/*
* For very small repos, we stick with our regular fallback.
*/
@@ -509,7 +520,7 @@ int find_unique_abbrev_r(char *hex, const unsigned char *sha1, int len)
const char *find_unique_abbrev(const unsigned char *sha1, int len)
{
static int bufno;
- static char hexbuffer[4][GIT_SHA1_HEXSZ + 1];
+ static char hexbuffer[4][GIT_MAX_HEXSZ + 1];
char *hex = hexbuffer[bufno];
bufno = (bufno + 1) % ARRAY_SIZE(hexbuffer);
find_unique_abbrev_r(hex, sha1, len);
@@ -549,7 +560,7 @@ static inline int at_mark(const char *string, int len,
for (i = 0; i < nr; i++) {
int suffix_len = strlen(suffix[i]);
if (suffix_len <= len
- && !memcmp(string, suffix[i], suffix_len))
+ && !strncasecmp(string, suffix[i], suffix_len))
return suffix_len;
}
return 0;
@@ -658,8 +669,8 @@ static int get_sha1_basic(const char *str, int len, unsigned char *sha1,
if (reflog_len) {
int nth, i;
- unsigned long at_time;
- unsigned long co_time;
+ timestamp_t at_time;
+ timestamp_t co_time;
int co_tz, co_cnt;
/* Is it asking for N-th entry, or approxidate? */
@@ -720,14 +731,14 @@ static int get_sha1_basic(const char *str, int len, unsigned char *sha1,
static int get_parent(const char *name, int len,
unsigned char *result, int idx)
{
- unsigned char sha1[20];
- int ret = get_sha1_1(name, len, sha1, GET_SHA1_COMMITTISH);
+ struct object_id oid;
+ int ret = get_sha1_1(name, len, oid.hash, GET_SHA1_COMMITTISH);
struct commit *commit;
struct commit_list *p;
if (ret)
return ret;
- commit = lookup_commit_reference(sha1);
+ commit = lookup_commit_reference(&oid);
if (parse_commit(commit))
return -1;
if (!idx) {
@@ -748,14 +759,14 @@ static int get_parent(const char *name, int len,
static int get_nth_ancestor(const char *name, int len,
unsigned char *result, int generation)
{
- unsigned char sha1[20];
+ struct object_id oid;
struct commit *commit;
int ret;
- ret = get_sha1_1(name, len, sha1, GET_SHA1_COMMITTISH);
+ ret = get_sha1_1(name, len, oid.hash, GET_SHA1_COMMITTISH);
if (ret)
return ret;
- commit = lookup_commit_reference(sha1);
+ commit = lookup_commit_reference(&oid);
if (!commit)
return -1;
@@ -774,7 +785,7 @@ struct object *peel_to_type(const char *name, int namelen,
if (name && !namelen)
namelen = strlen(name);
while (1) {
- if (!o || (!o->parsed && !parse_object(o->oid.hash)))
+ if (!o || (!o->parsed && !parse_object(&o->oid)))
return NULL;
if (expected_type == OBJ_ANY || o->type == expected_type)
return o;
@@ -796,7 +807,7 @@ struct object *peel_to_type(const char *name, int namelen,
static int peel_onion(const char *name, int len, unsigned char *sha1,
unsigned lookup_flags)
{
- unsigned char outer[20];
+ struct object_id outer;
const char *sp;
unsigned int expected_type = 0;
struct object *o;
@@ -844,15 +855,15 @@ static int peel_onion(const char *name, int len, unsigned char *sha1,
else if (expected_type == OBJ_TREE)
lookup_flags |= GET_SHA1_TREEISH;
- if (get_sha1_1(name, sp - name - 2, outer, lookup_flags))
+ if (get_sha1_1(name, sp - name - 2, outer.hash, lookup_flags))
return -1;
- o = parse_object(outer);
+ o = parse_object(&outer);
if (!o)
return -1;
if (!expected_type) {
o = deref_tag(o, name, sp - name - 2);
- if (!o || (!o->parsed && !parse_object(o->oid.hash)))
+ if (!o || (!o->parsed && !parse_object(&o->oid)))
return -1;
hashcpy(sha1, o->oid.hash);
return 0;
@@ -979,7 +990,7 @@ static int handle_one_ref(const char *path, const struct object_id *oid,
int flag, void *cb_data)
{
struct commit_list **list = cb_data;
- struct object *object = parse_object(oid->hash);
+ struct object *object = parse_object(oid);
if (!object)
return 0;
if (object->type == OBJ_TAG) {
@@ -1025,7 +1036,7 @@ static int get_sha1_oneline(const char *prefix, unsigned char *sha1,
int matches;
commit = pop_most_recent_commit(&list, ONELINE_SEEN);
- if (!parse_object(commit->object.oid.hash))
+ if (!parse_object(&commit->object.oid))
continue;
buf = get_commit_buffer(commit, NULL);
p = strstr(buf, "\n\n");
@@ -1051,8 +1062,8 @@ struct grab_nth_branch_switch_cbdata {
struct strbuf buf;
};
-static int grab_nth_branch_switch(unsigned char *osha1, unsigned char *nsha1,
- const char *email, unsigned long timestamp, int tz,
+static int grab_nth_branch_switch(struct object_id *ooid, struct object_id *noid,
+ const char *email, timestamp_t timestamp, int tz,
const char *message, void *cb_data)
{
struct grab_nth_branch_switch_cbdata *cb = cb_data;
@@ -1134,13 +1145,13 @@ int get_oid_mb(const char *name, struct object_id *oid)
}
if (st)
return st;
- one = lookup_commit_reference_gently(oid_tmp.hash, 0);
+ one = lookup_commit_reference_gently(&oid_tmp, 0);
if (!one)
return -1;
if (get_sha1_committish(dots[3] ? (dots + 3) : "HEAD", oid_tmp.hash))
return -1;
- two = lookup_commit_reference_gently(oid_tmp.hash, 0);
+ two = lookup_commit_reference_gently(&oid_tmp, 0);
if (!two)
return -1;
mbs = get_merge_bases(one, two);
@@ -1406,7 +1417,7 @@ static void diagnose_invalid_sha1_path(const char *prefix,
if (file_exists(filename))
die("Path '%s' exists on disk, but not in '%.*s'.",
filename, object_name_len, object_name);
- if (errno == ENOENT || errno == ENOTDIR) {
+ if (is_missing_file_error(errno)) {
char *fullname = xstrfmt("%s%s", prefix, filename);
if (!get_tree_entry(tree_sha1, fullname,
@@ -1471,7 +1482,7 @@ static void diagnose_invalid_index_path(int stage,
if (file_exists(filename))
die("Path '%s' exists on disk, but not in the index.", filename);
- if (errno == ENOENT || errno == ENOTDIR)
+ if (is_missing_file_error(errno))
die("Path '%s' does not exist (neither on disk nor in the index).",
filename);
@@ -1509,6 +1520,7 @@ static int get_sha1_with_context_1(const char *name,
memset(oc, 0, sizeof(*oc));
oc->mode = S_IFINVALID;
+ strbuf_init(&oc->symlink_path, 0);
ret = get_sha1_1(name, namelen, sha1, flags);
if (!ret)
return ret;
@@ -1547,7 +1559,8 @@ static int get_sha1_with_context_1(const char *name,
namelen = strlen(cp);
}
- strlcpy(oc->path, cp, sizeof(oc->path));
+ if (flags & GET_SHA1_RECORD_PATH)
+ oc->path = xstrdup(cp);
if (!active_cache)
read_cache();
@@ -1610,7 +1623,8 @@ static int get_sha1_with_context_1(const char *name,
}
}
hashcpy(oc->tree, tree_sha1);
- strlcpy(oc->path, filename, sizeof(oc->path));
+ if (flags & GET_SHA1_RECORD_PATH)
+ oc->path = xstrdup(filename);
free(new_filename);
return ret;
@@ -1636,9 +1650,9 @@ void maybe_die_on_misspelt_object_name(const char *name, const char *prefix)
get_sha1_with_context_1(name, GET_SHA1_ONLY_TO_DIE, prefix, sha1, &oc);
}
-int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *orc)
+int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *oc)
{
if (flags & GET_SHA1_FOLLOW_SYMLINKS && flags & GET_SHA1_ONLY_TO_DIE)
die("BUG: incompatible flags for get_sha1_with_context");
- return get_sha1_with_context_1(str, flags, NULL, sha1, orc);
+ return get_sha1_with_context_1(str, flags, NULL, sha1, oc);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 02:35:27 +0000