git_otype git_object_stringn2type(const char *str, size_t len)
{
size_t i;
if (!str || !len || !*str)
return GIT_OBJ_BAD;
for (i = 0; i < ARRAY_SIZE(git_objects_table); i++)
if (*git_objects_table[i].str &&
!git__prefixncmp(str, len, git_objects_table[i].str))
return (git_otype)i;
return GIT_OBJ_BAD;
}
int git_commit__parse_raw(void *_commit, const char *data, size_t size)
{
git_commit *commit = _commit;
const char *buffer_start = data, *buffer;
const char *buffer_end = buffer_start + size;
git_oid parent_id;
size_t header_len;
git_signature dummy_sig;
buffer = buffer_start;
/* Allocate for one, which will allow not to realloc 90% of the time */
git_array_init_to_size(commit->parent_ids, 1);
GITERR_CHECK_ARRAY(commit->parent_ids);
/* The tree is always the first field */
if (git_oid__parse(&commit->tree_id, &buffer, buffer_end, "tree ") < 0)
goto bad_buffer;
/*
* TODO: commit grafts!
*/
while (git_oid__parse(&parent_id, &buffer, buffer_end, "parent ") == 0) {
git_oid *new_id = git_array_alloc(commit->parent_ids);
GITERR_CHECK_ALLOC(new_id);
git_oid_cpy(new_id, &parent_id);
}
commit->author = git__malloc(sizeof(git_signature));
GITERR_CHECK_ALLOC(commit->author);
if (git_signature__parse(commit->author, &buffer, buffer_end, "author ", '\n') < 0)
return -1;
/* Some tools create multiple author fields, ignore the extra ones */
while (!git__prefixncmp(buffer, buffer_end - buffer, "author ")) {
if (git_signature__parse(&dummy_sig, &buffer, buffer_end, "author ", '\n') < 0)
return -1;
git__free(dummy_sig.name);
git__free(dummy_sig.email);
}
/* Always parse the committer; we need the commit time */
commit->committer = git__malloc(sizeof(git_signature));
GITERR_CHECK_ALLOC(commit->committer);
if (git_signature__parse(commit->committer, &buffer, buffer_end, "committer ", '\n') < 0)
return -1;
/* Parse add'l header entries */
while (buffer < buffer_end) {
const char *eoln = buffer;
if (buffer[-1] == '\n' && buffer[0] == '\n')
break;
while (eoln < buffer_end && *eoln != '\n')
++eoln;
if (git__prefixncmp(buffer, buffer_end - buffer, "encoding ") == 0) {
buffer += strlen("encoding ");
commit->message_encoding = git__strndup(buffer, eoln - buffer);
GITERR_CHECK_ALLOC(commit->message_encoding);
}
if (eoln < buffer_end && *eoln == '\n')
++eoln;
buffer = eoln;
}
header_len = buffer - buffer_start;
commit->raw_header = git__strndup(buffer_start, header_len);
GITERR_CHECK_ALLOC(commit->raw_header);
/* point "buffer" to data after header, +1 for the final LF */
buffer = buffer_start + header_len + 1;
/* extract commit message */
if (buffer <= buffer_end)
commit->raw_message = git__strndup(buffer, buffer_end - buffer);
else
commit->raw_message = git__strdup("");
GITERR_CHECK_ALLOC(commit->raw_message);
return 0;
bad_buffer:
giterr_set(GITERR_OBJECT, "failed to parse bad commit object");
return -1;
}
