diff options
Diffstat (limited to 'third_party/git/refspec.c')
-rw-r--r-- | third_party/git/refspec.c | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/third_party/git/refspec.c b/third_party/git/refspec.c deleted file mode 100644 index 8af357a0a35d..000000000000 --- a/third_party/git/refspec.c +++ /dev/null @@ -1,276 +0,0 @@ -#include "cache.h" -#include "strvec.h" -#include "refs.h" -#include "refspec.h" - -static struct refspec_item s_tag_refspec = { - 0, - 1, - 0, - 0, - 0, - "refs/tags/*", - "refs/tags/*" -}; - -/* See TAG_REFSPEC for the string version */ -const struct refspec_item *tag_refspec = &s_tag_refspec; - -/* - * Parses the provided refspec 'refspec' and populates the refspec_item 'item'. - * Returns 1 if successful and 0 if the refspec is invalid. - */ -static int parse_refspec(struct refspec_item *item, const char *refspec, int fetch) -{ - size_t llen; - int is_glob; - const char *lhs, *rhs; - int flags; - - is_glob = 0; - - lhs = refspec; - if (*lhs == '+') { - item->force = 1; - lhs++; - } else if (*lhs == '^') { - item->negative = 1; - lhs++; - } - - rhs = strrchr(lhs, ':'); - - /* negative refspecs only have one side */ - if (item->negative && rhs) - return 0; - - /* - * Before going on, special case ":" (or "+:") as a refspec - * for pushing matching refs. - */ - if (!fetch && rhs == lhs && rhs[1] == '\0') { - item->matching = 1; - return 1; - } - - if (rhs) { - size_t rlen = strlen(++rhs); - is_glob = (1 <= rlen && strchr(rhs, '*')); - item->dst = xstrndup(rhs, rlen); - } else { - item->dst = NULL; - } - - llen = (rhs ? (rhs - lhs - 1) : strlen(lhs)); - if (1 <= llen && memchr(lhs, '*', llen)) { - if ((rhs && !is_glob) || (!rhs && !item->negative && fetch)) - return 0; - is_glob = 1; - } else if (rhs && is_glob) { - return 0; - } - - item->pattern = is_glob; - item->src = xstrndup(lhs, llen); - flags = REFNAME_ALLOW_ONELEVEL | (is_glob ? REFNAME_REFSPEC_PATTERN : 0); - - if (item->negative) { - struct object_id unused; - - /* - * Negative refspecs only have a LHS, which indicates a ref - * (or pattern of refs) to exclude from other matches. This - * can either be a simple ref, or a glob pattern. Exact sha1 - * match is not currently supported. - */ - if (!*item->src) - return 0; /* negative refspecs must not be empty */ - else if (llen == the_hash_algo->hexsz && !get_oid_hex(item->src, &unused)) - return 0; /* negative refpsecs cannot be exact sha1 */ - else if (!check_refname_format(item->src, flags)) - ; /* valid looking ref is ok */ - else - return 0; - - /* the other rules below do not apply to negative refspecs */ - return 1; - } - - if (fetch) { - struct object_id unused; - - /* LHS */ - if (!*item->src) - ; /* empty is ok; it means "HEAD" */ - else if (llen == the_hash_algo->hexsz && !get_oid_hex(item->src, &unused)) - item->exact_sha1 = 1; /* ok */ - else if (!check_refname_format(item->src, flags)) - ; /* valid looking ref is ok */ - else - return 0; - /* RHS */ - if (!item->dst) - ; /* missing is ok; it is the same as empty */ - else if (!*item->dst) - ; /* empty is ok; it means "do not store" */ - else if (!check_refname_format(item->dst, flags)) - ; /* valid looking ref is ok */ - else - return 0; - } else { - /* - * LHS - * - empty is allowed; it means delete. - * - when wildcarded, it must be a valid looking ref. - * - otherwise, it must be an extended SHA-1, but - * there is no existing way to validate this. - */ - if (!*item->src) - ; /* empty is ok */ - else if (is_glob) { - if (check_refname_format(item->src, flags)) - return 0; - } - else - ; /* anything goes, for now */ - /* - * RHS - * - missing is allowed, but LHS then must be a - * valid looking ref. - * - empty is not allowed. - * - otherwise it must be a valid looking ref. - */ - if (!item->dst) { - if (check_refname_format(item->src, flags)) - return 0; - } else if (!*item->dst) { - return 0; - } else { - if (check_refname_format(item->dst, flags)) - return 0; - } - } - - return 1; -} - -int refspec_item_init(struct refspec_item *item, const char *refspec, int fetch) -{ - memset(item, 0, sizeof(*item)); - return parse_refspec(item, refspec, fetch); -} - -void refspec_item_init_or_die(struct refspec_item *item, const char *refspec, - int fetch) -{ - if (!refspec_item_init(item, refspec, fetch)) - die(_("invalid refspec '%s'"), refspec); -} - -void refspec_item_clear(struct refspec_item *item) -{ - FREE_AND_NULL(item->src); - FREE_AND_NULL(item->dst); - item->force = 0; - item->pattern = 0; - item->matching = 0; - item->exact_sha1 = 0; -} - -void refspec_init(struct refspec *rs, int fetch) -{ - memset(rs, 0, sizeof(*rs)); - rs->fetch = fetch; -} - -static void refspec_append_nodup(struct refspec *rs, char *refspec) -{ - struct refspec_item item; - - refspec_item_init_or_die(&item, refspec, rs->fetch); - - ALLOC_GROW(rs->items, rs->nr + 1, rs->alloc); - rs->items[rs->nr++] = item; - - ALLOC_GROW(rs->raw, rs->raw_nr + 1, rs->raw_alloc); - rs->raw[rs->raw_nr++] = refspec; -} - -void refspec_append(struct refspec *rs, const char *refspec) -{ - refspec_append_nodup(rs, xstrdup(refspec)); -} - -void refspec_appendf(struct refspec *rs, const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - refspec_append_nodup(rs, xstrvfmt(fmt, ap)); - va_end(ap); -} - -void refspec_appendn(struct refspec *rs, const char **refspecs, int nr) -{ - int i; - for (i = 0; i < nr; i++) - refspec_append(rs, refspecs[i]); -} - -void refspec_clear(struct refspec *rs) -{ - int i; - - for (i = 0; i < rs->nr; i++) - refspec_item_clear(&rs->items[i]); - - FREE_AND_NULL(rs->items); - rs->alloc = 0; - rs->nr = 0; - - for (i = 0; i < rs->raw_nr; i++) - free((char *)rs->raw[i]); - FREE_AND_NULL(rs->raw); - rs->raw_alloc = 0; - rs->raw_nr = 0; - - rs->fetch = 0; -} - -int valid_fetch_refspec(const char *fetch_refspec_str) -{ - struct refspec_item refspec; - int ret = refspec_item_init(&refspec, fetch_refspec_str, REFSPEC_FETCH); - refspec_item_clear(&refspec); - return ret; -} - -void refspec_ref_prefixes(const struct refspec *rs, - struct strvec *ref_prefixes) -{ - int i; - for (i = 0; i < rs->nr; i++) { - const struct refspec_item *item = &rs->items[i]; - const char *prefix = NULL; - - if (item->exact_sha1 || item->negative) - continue; - if (rs->fetch == REFSPEC_FETCH) - prefix = item->src; - else if (item->dst) - prefix = item->dst; - else if (item->src && !item->exact_sha1) - prefix = item->src; - - if (prefix) { - if (item->pattern) { - const char *glob = strchr(prefix, '*'); - strvec_pushf(ref_prefixes, "%.*s", - (int)(glob - prefix), - prefix); - } else { - expand_ref_prefix(ref_prefixes, prefix); - } - } - } -} |