#include "cache.h"
+#include "argv-array.h"
#include "refs.h"
#include "refspec.h"
-static struct refspec s_tag_refspec = {
+static struct refspec_item s_tag_refspec = {
0,
1,
0,
};
/* See TAG_REFSPEC for the string version */
-const struct refspec *tag_refspec = &s_tag_refspec;
+const struct refspec_item *tag_refspec = &s_tag_refspec;
-static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify)
+/*
+ * 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)
{
- int i;
- struct refspec *rs = xcalloc(nr_refspec, sizeof(*rs));
+ size_t llen;
+ int is_glob;
+ const char *lhs, *rhs;
+ int flags;
- for (i = 0; i < nr_refspec; i++) {
- size_t llen;
- int is_glob;
- const char *lhs, *rhs;
- int flags;
+ is_glob = 0;
- is_glob = 0;
+ lhs = refspec;
+ if (*lhs == '+') {
+ item->force = 1;
+ lhs++;
+ }
- lhs = refspec[i];
- if (*lhs == '+') {
- rs[i].force = 1;
- lhs++;
- }
+ rhs = strrchr(lhs, ':');
- rhs = strrchr(lhs, ':');
+ /*
+ * 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;
+ }
- /*
- * Before going on, special case ":" (or "+:") as a refspec
- * for pushing matching refs.
- */
- if (!fetch && rhs == lhs && rhs[1] == '\0') {
- rs[i].matching = 1;
- continue;
- }
+ if (rhs) {
+ size_t rlen = strlen(++rhs);
+ is_glob = (1 <= rlen && strchr(rhs, '*'));
+ item->dst = xstrndup(rhs, rlen);
+ } else {
+ item->dst = NULL;
+ }
- if (rhs) {
- size_t rlen = strlen(++rhs);
- is_glob = (1 <= rlen && strchr(rhs, '*'));
- rs[i].dst = xstrndup(rhs, rlen);
- }
+ llen = (rhs ? (rhs - lhs - 1) : strlen(lhs));
+ if (1 <= llen && memchr(lhs, '*', llen)) {
+ if ((rhs && !is_glob) || (!rhs && fetch))
+ return 0;
+ is_glob = 1;
+ } else if (rhs && is_glob) {
+ return 0;
+ }
- llen = (rhs ? (rhs - lhs - 1) : strlen(lhs));
- if (1 <= llen && memchr(lhs, '*', llen)) {
- if ((rhs && !is_glob) || (!rhs && fetch))
- goto invalid;
- is_glob = 1;
- } else if (rhs && is_glob) {
- goto invalid;
+ item->pattern = is_glob;
+ item->src = xstrndup(lhs, llen);
+ flags = REFNAME_ALLOW_ONELEVEL | (is_glob ? REFNAME_REFSPEC_PATTERN : 0);
+
+ if (fetch) {
+ struct object_id unused;
+
+ /* LHS */
+ if (!*item->src)
+ ; /* empty is ok; it means "HEAD" */
+ else if (llen == GIT_SHA1_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;
}
-
- rs[i].pattern = is_glob;
- rs[i].src = xstrndup(lhs, llen);
- flags = REFNAME_ALLOW_ONELEVEL | (is_glob ? REFNAME_REFSPEC_PATTERN : 0);
-
- if (fetch) {
- struct object_id unused;
-
- /* LHS */
- if (!*rs[i].src)
- ; /* empty is ok; it means "HEAD" */
- else if (llen == GIT_SHA1_HEXSZ && !get_oid_hex(rs[i].src, &unused))
- rs[i].exact_sha1 = 1; /* ok */
- else if (!check_refname_format(rs[i].src, flags))
- ; /* valid looking ref is ok */
- else
- goto invalid;
- /* RHS */
- if (!rs[i].dst)
- ; /* missing is ok; it is the same as empty */
- else if (!*rs[i].dst)
- ; /* empty is ok; it means "do not store" */
- else if (!check_refname_format(rs[i].dst, flags))
- ; /* valid looking ref is ok */
- else
- goto invalid;
+ 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 {
- /*
- * 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 (!*rs[i].src)
- ; /* empty is ok */
- else if (is_glob) {
- if (check_refname_format(rs[i].src, flags))
- goto invalid;
- }
- 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 (!rs[i].dst) {
- if (check_refname_format(rs[i].src, flags))
- goto invalid;
- } else if (!*rs[i].dst) {
- goto invalid;
- } else {
- if (check_refname_format(rs[i].dst, flags))
- goto invalid;
- }
+ if (check_refname_format(item->dst, flags))
+ return 0;
}
}
- return rs;
- invalid:
- if (verify) {
- /*
- * nr_refspec must be greater than zero and i must be valid
- * since it is only possible to reach this point from within
- * the for loop above.
- */
- free_refspec(i+1, rs);
- return NULL;
- }
- die("Invalid refspec '%s'", refspec[i]);
+ return 1;
}
-int valid_fetch_refspec(const char *fetch_refspec_str)
+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)
{
- struct refspec *refspec;
+ if (!refspec_item_init(item, refspec, fetch))
+ die("invalid refspec '%s'", refspec);
+}
- refspec = parse_refspec_internal(1, &fetch_refspec_str, 1, 1);
- free_refspec(1, refspec);
- return !!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;
}
-struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec)
+void refspec_init(struct refspec *rs, int fetch)
{
- return parse_refspec_internal(nr_refspec, refspec, 1, 0);
+ memset(rs, 0, sizeof(*rs));
+ rs->fetch = fetch;
}
-struct refspec *parse_push_refspec(int nr_refspec, const char **refspec)
+void refspec_append(struct refspec *rs, const char *refspec)
{
- return parse_refspec_internal(nr_refspec, refspec, 0, 0);
+ 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++] = xstrdup(refspec);
}
-void free_refspec(int nr_refspec, struct refspec *refspec)
+void refspec_appendn(struct refspec *rs, const char **refspecs, int nr)
{
int i;
+ for (i = 0; i < nr; i++)
+ refspec_append(rs, refspecs[i]);
+}
- if (!refspec)
- return;
+void refspec_clear(struct refspec *rs)
+{
+ int i;
+
+ for (i = 0; i < rs->nr; i++)
+ refspec_item_clear(&rs->items[i]);
- for (i = 0; i < nr_refspec; i++) {
- free(refspec[i].src);
- free(refspec[i].dst);
+ 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 argv_array *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)
+ 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, '*');
+ argv_array_pushf(ref_prefixes, "%.*s",
+ (int)(glob - prefix),
+ prefix);
+ } else {
+ expand_ref_prefix(ref_prefixes, prefix);
+ }
+ }
}
- free(refspec);
}