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Move refspec pattern matching to match_refs().

This means that send-pack and http-push will support pattern refspecs,
so builtin-push.c doesn't have to expand them, and also git push can
just turn --tags into "refs/tags/*", further simplifying
builtin-push.c

check_ref_format() gets a third "conditionally okay" result for
something that's valid as a pattern but not as a particular ref.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Daniel Barkalow Junio C Hamano
Daniel Barkalow authored and Junio C Hamano committed May 25, 2007
1 parent b516968 commit 8558fd9ece4c8250a037a6d5482a8040d600ef47
Showing with 70 additions and 122 deletions.
  1. +22 −111 builtin-push.c
  2. +19 −8 refs.c
  3. +28 −3 remote.c
  4. +1 −0 send-pack.c
View
@@ -9,7 +9,7 @@
static const char push_usage[] = "git-push [--all] [--tags] [--receive-pack=<git-receive-pack>] [--repo=all] [-f | --force] [-v] [<repository> <refspec>...]";
-static int all, tags, force, thin = 1, verbose;
+static int all, force, thin = 1, verbose;
static const char *receivepack;
static const char **refspec;
@@ -23,114 +23,24 @@ static void add_refspec(const char *ref)
refspec_nr = nr;
}
-static int expand_one_ref(const char *ref, const unsigned char *sha1, int flag, void *cb_data)
-{
- /* Ignore the "refs/" at the beginning of the refname */
- ref += 5;
-
- if (!prefixcmp(ref, "tags/"))
- add_refspec(xstrdup(ref));
- return 0;
-}
-
-static void expand_refspecs(void)
-{
- if (all) {
- if (refspec_nr)
- die("cannot mix '--all' and a refspec");
-
- /*
- * No need to expand "--all" - we'll just use
- * the "--all" flag to send-pack
- */
- return;
- }
- if (!tags)
- return;
- for_each_ref(expand_one_ref, NULL);
-}
-
-struct wildcard_cb {
- const char *from_prefix;
- int from_prefix_len;
- const char *to_prefix;
- int to_prefix_len;
- int force;
-};
-
-static int expand_wildcard_ref(const char *ref, const unsigned char *sha1, int flag, void *cb_data)
-{
- struct wildcard_cb *cb = cb_data;
- int len = strlen(ref);
- char *expanded, *newref;
-
- if (len < cb->from_prefix_len ||
- memcmp(cb->from_prefix, ref, cb->from_prefix_len))
- return 0;
- expanded = xmalloc(len * 2 + cb->force +
- (cb->to_prefix_len - cb->from_prefix_len) + 2);
- newref = expanded + cb->force;
- if (cb->force)
- expanded[0] = '+';
- memcpy(newref, ref, len);
- newref[len] = ':';
- memcpy(newref + len + 1, cb->to_prefix, cb->to_prefix_len);
- strcpy(newref + len + 1 + cb->to_prefix_len,
- ref + cb->from_prefix_len);
- add_refspec(expanded);
- return 0;
-}
-
-static int wildcard_ref(const char *ref)
-{
- int len;
- const char *colon;
- struct wildcard_cb cb;
-
- memset(&cb, 0, sizeof(cb));
- if (ref[0] == '+') {
- cb.force = 1;
- ref++;
- }
- len = strlen(ref);
- colon = strchr(ref, ':');
- if (! (colon && ref < colon &&
- colon[-2] == '/' && colon[-1] == '*' &&
- /* "<mine>/<asterisk>:<yours>/<asterisk>" is at least 7 bytes */
- 7 <= len &&
- ref[len-2] == '/' && ref[len-1] == '*') )
- return 0 ;
- cb.from_prefix = ref;
- cb.from_prefix_len = colon - ref - 1;
- cb.to_prefix = colon + 1;
- cb.to_prefix_len = len - (colon - ref) - 2;
- for_each_ref(expand_wildcard_ref, &cb);
- return 1;
-}
-
static void set_refspecs(const char **refs, int nr)
{
- if (nr) {
- int i;
- for (i = 0; i < nr; i++) {
- const char *ref = refs[i];
- if (!strcmp("tag", ref)) {
- char *tag;
- int len;
- if (nr <= ++i)
- die("tag shorthand without <tag>");
- len = strlen(refs[i]) + 11;
- tag = xmalloc(len);
- strcpy(tag, "refs/tags/");
- strcat(tag, refs[i]);
- ref = tag;
- }
- else if (wildcard_ref(ref))
- continue;
- add_refspec(ref);
+ int i;
+ for (i = 0; i < nr; i++) {
+ const char *ref = refs[i];
+ if (!strcmp("tag", ref)) {
+ char *tag;
+ int len;
+ if (nr <= ++i)
+ die("tag shorthand without <tag>");
+ len = strlen(refs[i]) + 11;
+ tag = xmalloc(len);
+ strcpy(tag, "refs/tags/");
+ strcat(tag, refs[i]);
+ ref = tag;
}
+ add_refspec(ref);
}
- expand_refspecs();
}
static int do_push(const char *repo)
@@ -149,11 +59,9 @@ static int do_push(const char *repo)
sprintf(rp, "--receive-pack=%s", remote->receivepack);
receivepack = rp;
}
- if (!refspec && !all && !tags && remote->push_refspec_nr) {
- for (i = 0; i < remote->push_refspec_nr; i++) {
- if (!wildcard_ref(remote->push_refspec[i]))
- add_refspec(remote->push_refspec[i]);
- }
+ if (!refspec && !all && remote->push_refspec_nr) {
+ refspec = remote->push_refspec;
+ refspec_nr = remote->push_refspec_nr;
}
argv = xmalloc((refspec_nr + 10) * sizeof(char *));
@@ -240,7 +148,7 @@ int cmd_push(int argc, const char **argv, const char *prefix)
continue;
}
if (!strcmp(arg, "--tags")) {
- tags = 1;
+ add_refspec("refs/tags/*");
continue;
}
if (!strcmp(arg, "--force") || !strcmp(arg, "-f")) {
@@ -266,5 +174,8 @@ int cmd_push(int argc, const char **argv, const char *prefix)
usage(push_usage);
}
set_refspecs(argv + i, argc - i);
+ if (all && refspec)
+ usage(push_usage);
+
return do_push(repo);
}
View
27 refs.c
@@ -603,15 +603,20 @@ int get_ref_sha1(const char *ref, unsigned char *sha1)
static inline int bad_ref_char(int ch)
{
- return (((unsigned) ch) <= ' ' ||
- ch == '~' || ch == '^' || ch == ':' ||
- /* 2.13 Pattern Matching Notation */
- ch == '?' || ch == '*' || ch == '[');
+ if (((unsigned) ch) <= ' ' ||
+ ch == '~' || ch == '^' || ch == ':')
+ return 1;
+ /* 2.13 Pattern Matching Notation */
+ if (ch == '?' || ch == '[') /* Unsupported */
+ return 1;
+ if (ch == '*') /* Supported at the end */
+ return 2;
+ return 0;
}
int check_ref_format(const char *ref)
{
- int ch, level;
+ int ch, level, bad_type;
const char *cp = ref;
level = 0;
@@ -622,13 +627,19 @@ int check_ref_format(const char *ref)
return -1; /* should not end with slashes */
/* we are at the beginning of the path component */
- if (ch == '.' || bad_ref_char(ch))
+ if (ch == '.')
return -1;
+ bad_type = bad_ref_char(ch);
+ if (bad_type) {
+ return (bad_type == 2 && !*cp) ? -3 : -1;
+ }
/* scan the rest of the path component */
while ((ch = *cp++) != 0) {
- if (bad_ref_char(ch))
- return -1;
+ bad_type = bad_ref_char(ch);
+ if (bad_type) {
+ return (bad_type == 2 && !*cp) ? -3 : -1;
+ }
if (ch == '/')
break;
if (ch == '.' && *cp == '.')
View
@@ -415,6 +415,10 @@ static int match_explicit_refs(struct ref *src, struct ref *dst,
struct ref *matched_src, *matched_dst;
const char *dst_value = rs[i].dst;
+
+ if (rs[i].pattern)
+ continue;
+
if (dst_value == NULL)
dst_value = rs[i].src;
@@ -497,22 +501,43 @@ static struct ref *find_ref_by_name(struct ref *list, const char *name)
return NULL;
}
+static int check_pattern_match(struct refspec *rs, int rs_nr, struct ref *src)
+{
+ int i;
+ if (!rs_nr)
+ return 1;
+ for (i = 0; i < rs_nr; i++) {
+ if (rs[i].pattern && !prefixcmp(src->name, rs[i].src))
+ return 1;
+ }
+ return 0;
+}
+
int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail,
int nr_refspec, char **refspec, int all)
{
struct refspec *rs =
parse_ref_spec(nr_refspec, (const char **) refspec);
- if (nr_refspec)
- return match_explicit_refs(src, dst, dst_tail, rs, nr_refspec);
+ if (match_explicit_refs(src, dst, dst_tail, rs, nr_refspec))
+ return -1;
/* pick the remainder */
for ( ; src; src = src->next) {
struct ref *dst_peer;
if (src->peer_ref)
continue;
+ if (!check_pattern_match(rs, nr_refspec, src))
+ continue;
+
dst_peer = find_ref_by_name(dst, src->name);
- if ((dst_peer && dst_peer->peer_ref) || (!dst_peer && !all))
+ if (dst_peer && dst_peer->peer_ref)
+ /* We're already sending something to this ref. */
+ continue;
+ if (!dst_peer && !nr_refspec && !all)
+ /* Remote doesn't have it, and we have no
+ * explicit pattern, and we don't have
+ * --all. */
continue;
if (!dst_peer) {
/* Create a new one and link it */
View
@@ -354,6 +354,7 @@ static void verify_remote_names(int nr_heads, char **heads)
case -2: /* ok but a single level -- that is fine for
* a match pattern.
*/
+ case -3: /* ok but ends with a pattern-match character */
continue;
}
die("remote part of refspec is not a valid name in %s",

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