#include "tree.h"
#include "blob.h"
#include "tree-walk.h"
+#include "refs.h"
static int find_short_object_filename(int len, const char *name, unsigned char *sha1)
{
int cmp;
nth_packed_object_sha1(p, mid, now);
- cmp = memcmp(match, now, 20);
+ cmp = hashcmp(match, now);
if (!cmp) {
first = mid;
break;
!match_sha(len, match, next)) {
/* unique within this pack */
if (!found) {
- memcpy(found_sha1, now, 20);
+ hashcpy(found_sha1, now);
found++;
}
- else if (memcmp(found_sha1, now, 20)) {
+ else if (hashcmp(found_sha1, now)) {
found = 2;
break;
}
}
}
if (found == 1)
- memcpy(sha1, found_sha1, 20);
+ hashcpy(sha1, found_sha1);
return found;
}
if (1 < has_unpacked || 1 < has_packed)
return SHORT_NAME_AMBIGUOUS;
if (has_unpacked != has_packed) {
- memcpy(sha1, (has_packed ? packed_sha1 : unpacked_sha1), 20);
+ hashcpy(sha1, (has_packed ? packed_sha1 : unpacked_sha1));
return 0;
}
/* Both have unique ones -- do they match? */
- if (memcmp(packed_sha1, unpacked_sha1, 20))
+ if (hashcmp(packed_sha1, unpacked_sha1))
return SHORT_NAME_AMBIGUOUS;
- memcpy(sha1, packed_sha1, 20);
+ hashcpy(sha1, packed_sha1);
return 0;
}
if (len < MINIMUM_ABBREV)
return -1;
- memset(res, 0, 20);
+ hashclr(res);
memset(canonical, 'x', 40);
for (i = 0; i < len ;i++) {
unsigned char c = name[i];
int status, is_null;
static char hex[41];
- is_null = !memcmp(sha1, null_sha1, 20);
+ is_null = is_null_sha1(sha1);
memcpy(hex, sha1_to_hex(sha1), 40);
- if (len == 40)
+ if (len == 40 || !len)
return hex;
while (len < 40) {
unsigned char sha1_ret[20];
"refs/remotes/%.*s/HEAD",
NULL
};
- const char **p;
- const char *warning = "warning: refname '%.*s' is ambiguous.\n";
- char *pathname;
- int already_found = 0;
+ static const char *warning = "warning: refname '%.*s' is ambiguous.\n";
+ const char **p, *pathname;
+ char *real_path = NULL;
+ int refs_found = 0, am;
+ unsigned long at_time = (unsigned long)-1;
unsigned char *this_result;
unsigned char sha1_from_ref[20];
if (len == 40 && !get_sha1_hex(str, sha1))
return 0;
+ /* At a given period of time? "@{2 hours ago}" */
+ for (am = 1; am < len - 1; am++) {
+ if (str[am] == '@' && str[am+1] == '{' && str[len-1] == '}') {
+ int date_len = len - am - 3;
+ char *date_spec = xmalloc(date_len + 1);
+ strlcpy(date_spec, str + am + 2, date_len + 1);
+ at_time = approxidate(date_spec);
+ free(date_spec);
+ len = am;
+ break;
+ }
+ }
+
/* Accept only unambiguous ref paths. */
if (ambiguous_path(str, len))
return -1;
for (p = fmt; *p; p++) {
- this_result = already_found ? sha1_from_ref : sha1;
- pathname = git_path(*p, len, str);
- if (!read_ref(pathname, this_result)) {
- if (warn_ambiguous_refs) {
- if (already_found)
- fprintf(stderr, warning, len, str);
- already_found++;
- }
- else
- return 0;
+ this_result = refs_found ? sha1_from_ref : sha1;
+ pathname = resolve_ref(git_path(*p, len, str), this_result, 1);
+ if (pathname) {
+ if (!refs_found++)
+ real_path = strdup(pathname);
+ if (!warn_ambiguous_refs)
+ break;
}
}
- if (already_found)
- return 0;
- return -1;
+
+ if (!refs_found)
+ return -1;
+
+ if (warn_ambiguous_refs && refs_found > 1)
+ fprintf(stderr, warning, len, str);
+
+ if (at_time != (unsigned long)-1) {
+ read_ref_at(
+ real_path + strlen(git_path(".")) - 1,
+ at_time,
+ sha1);
+ }
+
+ free(real_path);
+ return 0;
}
static int get_sha1_1(const char *name, int len, unsigned char *sha1);
if (parse_commit(commit))
return -1;
if (!idx) {
- memcpy(result, commit->object.sha1, 20);
+ hashcpy(result, commit->object.sha1);
return 0;
}
p = commit->parents;
while (p) {
if (!--idx) {
- memcpy(result, p->item->object.sha1, 20);
+ hashcpy(result, p->item->object.sha1);
return 0;
}
p = p->next;
if (!commit || parse_commit(commit) || !commit->parents)
return -1;
- memcpy(sha1, commit->parents->item->object.sha1, 20);
+ hashcpy(sha1, commit->parents->item->object.sha1);
}
- memcpy(result, sha1, 20);
+ hashcpy(result, sha1);
return 0;
}
{
unsigned char outer[20];
const char *sp;
- const char *type_string = NULL;
+ unsigned int expected_type = 0;
struct object *o;
/*
sp++; /* beginning of type name, or closing brace for empty */
if (!strncmp(commit_type, sp, 6) && sp[6] == '}')
- type_string = commit_type;
+ expected_type = OBJ_COMMIT;
else if (!strncmp(tree_type, sp, 4) && sp[4] == '}')
- type_string = tree_type;
+ expected_type = OBJ_TREE;
else if (!strncmp(blob_type, sp, 4) && sp[4] == '}')
- type_string = blob_type;
+ expected_type = OBJ_BLOB;
else if (sp[0] == '}')
- type_string = NULL;
+ expected_type = OBJ_NONE;
else
return -1;
o = parse_object(outer);
if (!o)
return -1;
- if (!type_string) {
+ if (!expected_type) {
o = deref_tag(o, name, sp - name - 2);
if (!o || (!o->parsed && !parse_object(o->sha1)))
return -1;
- memcpy(sha1, o->sha1, 20);
+ hashcpy(sha1, o->sha1);
}
else {
/* At this point, the syntax look correct, so
while (1) {
if (!o || (!o->parsed && !parse_object(o->sha1)))
return -1;
- if (o->type == type_string) {
- memcpy(sha1, o->sha1, 20);
+ if (o->type == expected_type) {
+ hashcpy(sha1, o->sha1);
return 0;
}
- if (o->type == tag_type)
+ if (o->type == OBJ_TAG)
o = ((struct tag*) o)->tagged;
- else if (o->type == commit_type)
+ else if (o->type == OBJ_COMMIT)
o = &(((struct commit *) o)->tree->object);
else
return error("%.*s: expected %s type, but the object dereferences to %s type",
- len, name, type_string,
- o->type);
+ len, name, typename(expected_type),
+ typename(o->type));
if (!o->parsed)
parse_object(o->sha1);
}
*/
int get_sha1(const char *name, unsigned char *sha1)
{
- int ret;
+ int ret, bracket_depth;
unsigned unused;
int namelen = strlen(name);
const char *cp;
memcmp(ce->name, cp, namelen))
break;
if (ce_stage(ce) == stage) {
- memcpy(sha1, ce->sha1, 20);
+ hashcpy(sha1, ce->sha1);
return 0;
}
pos++;
}
return -1;
}
- cp = strchr(name, ':');
- if (cp) {
+ for (cp = name, bracket_depth = 0; *cp; cp++) {
+ if (*cp == '{')
+ bracket_depth++;
+ else if (bracket_depth && *cp == '}')
+ bracket_depth--;
+ else if (!bracket_depth && *cp == ':')
+ break;
+ }
+ if (*cp == ':') {
unsigned char tree_sha1[20];
if (!get_sha1_1(name, cp-name, tree_sha1))
return get_tree_entry(tree_sha1, cp+1, sha1,