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-rw-r--r--remote.c330
1 files changed, 226 insertions, 104 deletions
diff --git a/remote.c b/remote.c
index 9f1a8aa2c4..3d6c86a36f 100644
--- a/remote.c
+++ b/remote.c
@@ -49,6 +49,7 @@ static int branches_nr;
static struct branch *current_branch;
static const char *default_remote_name;
+static const char *branch_pushremote_name;
static const char *pushremote_name;
static int explicit_default_remote_name;
@@ -76,7 +77,7 @@ static const char *alias_url(const char *url, struct rewrites *r)
if (!r->rewrite[i])
continue;
for (j = 0; j < r->rewrite[i]->instead_of_nr; j++) {
- if (!prefixcmp(url, r->rewrite[i]->instead_of[j].s) &&
+ if (starts_with(url, r->rewrite[i]->instead_of[j].s) &&
(!longest ||
longest->len < r->rewrite[i]->instead_of[j].len)) {
longest = &(r->rewrite[i]->instead_of[j]);
@@ -169,7 +170,6 @@ static struct branch *make_branch(const char *name, int len)
{
struct branch *ret;
int i;
- char *refname;
for (i = 0; i < branches_nr; i++) {
if (len ? (!strncmp(name, branches[i]->name, len) &&
@@ -185,10 +185,7 @@ static struct branch *make_branch(const char *name, int len)
ret->name = xstrndup(name, len);
else
ret->name = xstrdup(name);
- refname = xmalloc(strlen(name) + strlen("refs/heads/") + 1);
- strcpy(refname, "refs/heads/");
- strcpy(refname + strlen("refs/heads/"), ret->name);
- ret->refname = refname;
+ ret->refname = xstrfmt("refs/heads/%s", ret->name);
return ret;
}
@@ -239,13 +236,13 @@ static void read_remotes_file(struct remote *remote)
int value_list;
char *s, *p;
- if (!prefixcmp(buffer, "URL:")) {
+ if (starts_with(buffer, "URL:")) {
value_list = 0;
s = buffer + 4;
- } else if (!prefixcmp(buffer, "Push:")) {
+ } else if (starts_with(buffer, "Push:")) {
value_list = 1;
s = buffer + 5;
- } else if (!prefixcmp(buffer, "Pull:")) {
+ } else if (starts_with(buffer, "Pull:")) {
value_list = 2;
s = buffer + 5;
} else
@@ -337,7 +334,7 @@ static int handle_config(const char *key, const char *value, void *cb)
const char *subkey;
struct remote *remote;
struct branch *branch;
- if (!prefixcmp(key, "branch.")) {
+ if (starts_with(key, "branch.")) {
name = key + 7;
subkey = strrchr(name, '.');
if (!subkey)
@@ -352,7 +349,7 @@ static int handle_config(const char *key, const char *value, void *cb)
}
} else if (!strcmp(subkey, ".pushremote")) {
if (branch == current_branch)
- if (git_config_string(&pushremote_name, key, value))
+ if (git_config_string(&branch_pushremote_name, key, value))
return -1;
} else if (!strcmp(subkey, ".merge")) {
if (!value)
@@ -361,7 +358,7 @@ static int handle_config(const char *key, const char *value, void *cb)
}
return 0;
}
- if (!prefixcmp(key, "url.")) {
+ if (starts_with(key, "url.")) {
struct rewrite *rewrite;
name = key + 4;
subkey = strrchr(name, '.');
@@ -380,7 +377,7 @@ static int handle_config(const char *key, const char *value, void *cb)
}
}
- if (prefixcmp(key, "remote."))
+ if (!starts_with(key, "remote."))
return 0;
name = key + 7;
@@ -487,11 +484,14 @@ static void read_config(void)
current_branch = NULL;
head_ref = resolve_ref_unsafe("HEAD", sha1, 0, &flag);
if (head_ref && (flag & REF_ISSYMREF) &&
- !prefixcmp(head_ref, "refs/heads/")) {
- current_branch =
- make_branch(head_ref + strlen("refs/heads/"), 0);
+ skip_prefix(head_ref, "refs/heads/", &head_ref)) {
+ current_branch = make_branch(head_ref, 0);
}
git_config(handle_config, NULL);
+ if (branch_pushremote_name) {
+ free((char *)pushremote_name);
+ pushremote_name = branch_pushremote_name;
+ }
alias_all_urls();
}
@@ -518,7 +518,7 @@ static void free_refspecs(struct refspec *refspec, int nr_refspec)
static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify)
{
int i;
- struct refspec *rs = xcalloc(sizeof(*rs), nr_refspec);
+ struct refspec *rs = xcalloc(nr_refspec, sizeof(*rs));
for (i = 0; i < nr_refspec; i++) {
size_t llen;
@@ -745,35 +745,66 @@ int for_each_remote(each_remote_fn fn, void *priv)
return result;
}
-void ref_remove_duplicates(struct ref *ref_map)
+static void handle_duplicate(struct ref *ref1, struct ref *ref2)
+{
+ if (strcmp(ref1->name, ref2->name)) {
+ if (ref1->fetch_head_status != FETCH_HEAD_IGNORE &&
+ ref2->fetch_head_status != FETCH_HEAD_IGNORE) {
+ die(_("Cannot fetch both %s and %s to %s"),
+ ref1->name, ref2->name, ref2->peer_ref->name);
+ } else if (ref1->fetch_head_status != FETCH_HEAD_IGNORE &&
+ ref2->fetch_head_status == FETCH_HEAD_IGNORE) {
+ warning(_("%s usually tracks %s, not %s"),
+ ref2->peer_ref->name, ref2->name, ref1->name);
+ } else if (ref1->fetch_head_status == FETCH_HEAD_IGNORE &&
+ ref2->fetch_head_status == FETCH_HEAD_IGNORE) {
+ die(_("%s tracks both %s and %s"),
+ ref2->peer_ref->name, ref1->name, ref2->name);
+ } else {
+ /*
+ * This last possibility doesn't occur because
+ * FETCH_HEAD_IGNORE entries always appear at
+ * the end of the list.
+ */
+ die(_("Internal error"));
+ }
+ }
+ free(ref2->peer_ref);
+ free(ref2);
+}
+
+struct ref *ref_remove_duplicates(struct ref *ref_map)
{
struct string_list refs = STRING_LIST_INIT_NODUP;
- struct string_list_item *item = NULL;
- struct ref *prev = NULL, *next = NULL;
- for (; ref_map; prev = ref_map, ref_map = next) {
- next = ref_map->next;
- if (!ref_map->peer_ref)
- continue;
+ struct ref *retval = NULL;
+ struct ref **p = &retval;
- item = string_list_lookup(&refs, ref_map->peer_ref->name);
- if (item) {
- if (strcmp(((struct ref *)item->util)->name,
- ref_map->name))
- die("%s tracks both %s and %s",
- ref_map->peer_ref->name,
- ((struct ref *)item->util)->name,
- ref_map->name);
- prev->next = ref_map->next;
- free(ref_map->peer_ref);
- free(ref_map);
- ref_map = prev; /* skip this; we freed it */
- continue;
- }
+ while (ref_map) {
+ struct ref *ref = ref_map;
+
+ ref_map = ref_map->next;
+ ref->next = NULL;
- item = string_list_insert(&refs, ref_map->peer_ref->name);
- item->util = ref_map;
+ if (!ref->peer_ref) {
+ *p = ref;
+ p = &ref->next;
+ } else {
+ struct string_list_item *item =
+ string_list_insert(&refs, ref->peer_ref->name);
+
+ if (item->util) {
+ /* Entry already existed */
+ handle_duplicate((struct ref *)item->util, ref);
+ } else {
+ *p = ref;
+ p = &ref->next;
+ item->util = ref;
+ }
+ }
}
+
string_list_clear(&refs, 0);
+ return retval;
}
int remote_has_url(struct remote *remote, const char *url)
@@ -821,13 +852,13 @@ static int match_name_with_pattern(const char *key, const char *name,
return ret;
}
-static int query_refspecs(struct refspec *refs, int ref_count, struct refspec *query)
+static void query_refspecs_multiple(struct refspec *refs, int ref_count, struct refspec *query, struct string_list *results)
{
int i;
int find_src = !query->src;
if (find_src && !query->dst)
- return error("query_refspecs: need either src or dst");
+ error("query_refspecs_multiple: need either src or dst");
for (i = 0; i < ref_count; i++) {
struct refspec *refspec = &refs[i];
@@ -839,6 +870,32 @@ static int query_refspecs(struct refspec *refs, int ref_count, struct refspec *q
if (!refspec->dst)
continue;
if (refspec->pattern) {
+ if (match_name_with_pattern(key, needle, value, result))
+ string_list_append_nodup(results, *result);
+ } else if (!strcmp(needle, key)) {
+ string_list_append(results, value);
+ }
+ }
+}
+
+int query_refspecs(struct refspec *refs, int ref_count, struct refspec *query)
+{
+ int i;
+ int find_src = !query->src;
+ const char *needle = find_src ? query->dst : query->src;
+ char **result = find_src ? &query->src : &query->dst;
+
+ if (find_src && !query->dst)
+ return error("query_refspecs: need either src or dst");
+
+ for (i = 0; i < ref_count; i++) {
+ struct refspec *refspec = &refs[i];
+ const char *key = find_src ? refspec->dst : refspec->src;
+ const char *value = find_src ? refspec->src : refspec->dst;
+
+ if (!refspec->dst)
+ continue;
+ if (refspec->pattern) {
if (match_name_with_pattern(key, needle, value, result)) {
query->force = refspec->force;
return 0;
@@ -955,9 +1012,9 @@ void sort_ref_list(struct ref **l, int (*cmp)(const void *, const void *))
*l = llist_mergesort(*l, ref_list_get_next, ref_list_set_next, cmp);
}
-static int count_refspec_match(const char *pattern,
- struct ref *refs,
- struct ref **matched_ref)
+int count_refspec_match(const char *pattern,
+ struct ref *refs,
+ struct ref **matched_ref)
{
int patlen = strlen(pattern);
struct ref *matched_weak = NULL;
@@ -969,7 +1026,7 @@ static int count_refspec_match(const char *pattern,
char *name = refs->name;
int namelen = strlen(name);
- if (!refname_match(pattern, name, ref_rev_parse_rules))
+ if (!refname_match(pattern, name))
continue;
/* A match is "weak" if it is with refs outside
@@ -982,8 +1039,8 @@ static int count_refspec_match(const char *pattern,
*/
if (namelen != patlen &&
patlen != namelen - 5 &&
- prefixcmp(name, "refs/heads/") &&
- prefixcmp(name, "refs/tags/")) {
+ !starts_with(name, "refs/heads/") &&
+ !starts_with(name, "refs/tags/")) {
/* We want to catch the case where only weak
* matches are found and there are multiple
* matches, and where more than one strong
@@ -1000,11 +1057,13 @@ static int count_refspec_match(const char *pattern,
}
}
if (!matched) {
- *matched_ref = matched_weak;
+ if (matched_ref)
+ *matched_ref = matched_weak;
return weak_match;
}
else {
- *matched_ref = matched;
+ if (matched_ref)
+ *matched_ref = matched;
return match;
}
}
@@ -1024,18 +1083,25 @@ static struct ref *alloc_delete_ref(void)
return ref;
}
-static struct ref *try_explicit_object_name(const char *name)
+static int try_explicit_object_name(const char *name,
+ struct ref **match)
{
unsigned char sha1[20];
- struct ref *ref;
- if (!*name)
- return alloc_delete_ref();
+ if (!*name) {
+ if (match)
+ *match = alloc_delete_ref();
+ return 0;
+ }
+
if (get_sha1(name, sha1))
- return NULL;
- ref = alloc_ref(name);
- hashcpy(ref->new_sha1, sha1);
- return ref;
+ return -1;
+
+ if (match) {
+ *match = alloc_ref(name);
+ hashcpy((*match)->new_sha1, sha1);
+ }
+ return 0;
}
static struct ref *make_linked_ref(const char *name, struct ref ***tail)
@@ -1054,9 +1120,9 @@ static char *guess_ref(const char *name, struct ref *peer)
if (!r)
return NULL;
- if (!prefixcmp(r, "refs/heads/"))
+ if (starts_with(r, "refs/heads/"))
strbuf_addstr(&buf, "refs/heads/");
- else if (!prefixcmp(r, "refs/tags/"))
+ else if (starts_with(r, "refs/tags/"))
strbuf_addstr(&buf, "refs/tags/");
else
return NULL;
@@ -1065,12 +1131,37 @@ static char *guess_ref(const char *name, struct ref *peer)
return strbuf_detach(&buf, NULL);
}
+static int match_explicit_lhs(struct ref *src,
+ struct refspec *rs,
+ struct ref **match,
+ int *allocated_match)
+{
+ switch (count_refspec_match(rs->src, src, match)) {
+ case 1:
+ if (allocated_match)
+ *allocated_match = 0;
+ return 0;
+ case 0:
+ /* The source could be in the get_sha1() format
+ * not a reference name. :refs/other is a
+ * way to delete 'other' ref at the remote end.
+ */
+ if (try_explicit_object_name(rs->src, match) < 0)
+ return error("src refspec %s does not match any.", rs->src);
+ if (allocated_match)
+ *allocated_match = 1;
+ return 0;
+ default:
+ return error("src refspec %s matches more than one.", rs->src);
+ }
+}
+
static int match_explicit(struct ref *src, struct ref *dst,
struct ref ***dst_tail,
struct refspec *rs)
{
struct ref *matched_src, *matched_dst;
- int copy_src;
+ int allocated_src;
const char *dst_value = rs->dst;
char *dst_guess;
@@ -1079,23 +1170,8 @@ static int match_explicit(struct ref *src, struct ref *dst,
return 0;
matched_src = matched_dst = NULL;
- switch (count_refspec_match(rs->src, src, &matched_src)) {
- case 1:
- copy_src = 1;
- break;
- case 0:
- /* The source could be in the get_sha1() format
- * not a reference name. :refs/other is a
- * way to delete 'other' ref at the remote end.
- */
- matched_src = try_explicit_object_name(rs->src);
- if (!matched_src)
- return error("src refspec %s does not match any.", rs->src);
- copy_src = 0;
- break;
- default:
- return error("src refspec %s matches more than one.", rs->src);
- }
+ if (match_explicit_lhs(src, rs, &matched_src, &allocated_src) < 0)
+ return -1;
if (!dst_value) {
unsigned char sha1[20];
@@ -1104,7 +1180,7 @@ static int match_explicit(struct ref *src, struct ref *dst,
dst_value = resolve_ref_unsafe(matched_src->name, sha1, 1, &flag);
if (!dst_value ||
((flag & REF_ISSYMREF) &&
- prefixcmp(dst_value, "refs/heads/")))
+ !starts_with(dst_value, "refs/heads/")))
die("%s cannot be resolved to branch.",
matched_src->name);
}
@@ -1113,7 +1189,7 @@ static int match_explicit(struct ref *src, struct ref *dst,
case 1:
break;
case 0:
- if (!memcmp(dst_value, "refs/", 5))
+ if (starts_with(dst_value, "refs/"))
matched_dst = make_linked_ref(dst_value, dst_tail);
else if (is_null_sha1(matched_src->new_sha1))
error("unable to delete '%s': remote ref does not exist",
@@ -1140,7 +1216,9 @@ static int match_explicit(struct ref *src, struct ref *dst,
return error("dst ref %s receives from more than one src.",
matched_dst->name);
else {
- matched_dst->peer_ref = copy_src ? copy_ref(matched_src) : matched_src;
+ matched_dst->peer_ref = allocated_src ?
+ matched_src :
+ copy_ref(matched_src);
matched_dst->force = rs->force;
}
return 0;
@@ -1193,7 +1271,7 @@ static char *get_ref_match(const struct refspec *rs, int rs_nr, const struct ref
* including refs outside refs/heads/ hierarchy, but
* that does not make much sense these days.
*/
- if (!send_mirror && prefixcmp(ref->name, "refs/heads/"))
+ if (!send_mirror && !starts_with(ref->name, "refs/heads/"))
return NULL;
name = xstrdup(ref->name);
}
@@ -1248,7 +1326,7 @@ static void add_missing_tags(struct ref *src, struct ref **dst, struct ref ***ds
add_to_tips(&sent_tips, ref->peer_ref->new_sha1);
else
add_to_tips(&sent_tips, ref->old_sha1);
- if (!prefixcmp(ref->name, "refs/tags/"))
+ if (starts_with(ref->name, "refs/tags/"))
string_list_append(&dst_tag, ref->name);
}
clear_commit_marks_many(sent_tips.nr, sent_tips.tip, TMP_MARK);
@@ -1257,7 +1335,7 @@ static void add_missing_tags(struct ref *src, struct ref **dst, struct ref ***ds
/* Collect tags they do not have. */
for (ref = src; ref; ref = ref->next) {
- if (prefixcmp(ref->name, "refs/tags/"))
+ if (!starts_with(ref->name, "refs/tags/"))
continue; /* not a tag */
if (string_list_has_string(&dst_tag, ref->name))
continue; /* they already have it */
@@ -1322,6 +1400,31 @@ static void prepare_ref_index(struct string_list *ref_index, struct ref *ref)
}
/*
+ * Given only the set of local refs, sanity-check the set of push
+ * refspecs. We can't catch all errors that match_push_refs would,
+ * but we can catch some errors early before even talking to the
+ * remote side.
+ */
+int check_push_refs(struct ref *src, int nr_refspec, const char **refspec_names)
+{
+ struct refspec *refspec = parse_push_refspec(nr_refspec, refspec_names);
+ int ret = 0;
+ int i;
+
+ for (i = 0; i < nr_refspec; i++) {
+ struct refspec *rs = refspec + i;
+
+ if (rs->pattern || rs->matching)
+ continue;
+
+ ret |= match_explicit_lhs(src, rs, NULL, NULL);
+ }
+
+ free_refspec(nr_refspec, refspec);
+ return ret;
+}
+
+/*
* Given the set of refs the local repository has, the set of refs the
* remote repository has, and the refspec used for push, determine
* what remote refs we will update and with what value by setting
@@ -1373,7 +1476,7 @@ int match_push_refs(struct ref *src, struct ref **dst,
/*
* Remote doesn't have it, and we have no
* explicit pattern, and we don't have
- * --all nor --mirror.
+ * --all or --mirror.
*/
goto free_name;
@@ -1481,7 +1584,7 @@ void set_ref_status_for_push(struct ref *remote_refs, int send_mirror,
*/
else if (!ref->deletion && !is_null_sha1(ref->old_sha1)) {
- if (!prefixcmp(ref->name, "refs/tags/"))
+ if (starts_with(ref->name, "refs/tags/"))
reject_reason = REF_STATUS_REJECT_ALREADY_EXISTS;
else if (!has_sha1_file(ref->old_sha1))
reject_reason = REF_STATUS_REJECT_FETCH_FIRST;
@@ -1540,7 +1643,7 @@ int branch_merge_matches(struct branch *branch,
{
if (!branch || i < 0 || i >= branch->merge_nr)
return 0;
- return refname_match(branch->merge[i]->src, refname, ref_fetch_rules);
+ return refname_match(branch->merge[i]->src, refname);
}
static int ignore_symref_update(const char *refname)
@@ -1553,6 +1656,13 @@ static int ignore_symref_update(const char *refname)
return (flag & REF_ISSYMREF);
}
+/*
+ * Create and return a list of (struct ref) consisting of copies of
+ * each remote_ref that matches refspec. refspec must be a pattern.
+ * Fill in the copies' peer_ref to describe the local tracking refs to
+ * which they map. Omit any references that would map to an existing
+ * local symbolic ref.
+ */
static struct ref *get_expanded_map(const struct ref *remote_refs,
const struct refspec *refspec)
{
@@ -1560,9 +1670,9 @@ static struct ref *get_expanded_map(const struct ref *remote_refs,
struct ref *ret = NULL;
struct ref **tail = &ret;
- char *expn_name;
-
for (ref = remote_refs; ref; ref = ref->next) {
+ char *expn_name = NULL;
+
if (strchr(ref->name, '^'))
continue; /* a dereference item */
if (match_name_with_pattern(refspec->src, ref->name,
@@ -1571,12 +1681,12 @@ static struct ref *get_expanded_map(const struct ref *remote_refs,
struct ref *cpy = copy_ref(ref);
cpy->peer_ref = alloc_ref(expn_name);
- free(expn_name);
if (refspec->force)
cpy->peer_ref->force = 1;
*tail = cpy;
tail = &cpy->next;
}
+ free(expn_name);
}
return ret;
@@ -1586,7 +1696,7 @@ static const struct ref *find_ref_by_name_abbrev(const struct ref *refs, const c
{
const struct ref *ref;
for (ref = refs; ref; ref = ref->next) {
- if (refname_match(name, ref->name, ref_fetch_rules))
+ if (refname_match(name, ref->name))
return ref;
}
return NULL;
@@ -1607,12 +1717,12 @@ static struct ref *get_local_ref(const char *name)
if (!name || name[0] == '\0')
return NULL;
- if (!prefixcmp(name, "refs/"))
+ if (starts_with(name, "refs/"))
return alloc_ref(name);
- if (!prefixcmp(name, "heads/") ||
- !prefixcmp(name, "tags/") ||
- !prefixcmp(name, "remotes/"))
+ if (starts_with(name, "heads/") ||
+ starts_with(name, "tags/") ||
+ starts_with(name, "remotes/"))
return alloc_ref_with_prefix("refs/", 5, name);
return alloc_ref_with_prefix("refs/heads/", 11, name);
@@ -1647,7 +1757,7 @@ int get_fetch_map(const struct ref *remote_refs,
for (rmp = &ref_map; *rmp; ) {
if ((*rmp)->peer_ref) {
- if (prefixcmp((*rmp)->peer_ref->name, "refs/") ||
+ if (!starts_with((*rmp)->peer_ref->name, "refs/") ||
check_refname_format((*rmp)->peer_ref->name, 0)) {
struct ref *ignore = *rmp;
error("* Ignoring funny ref '%s' locally",
@@ -1931,7 +2041,7 @@ struct ref *guess_remote_head(const struct ref *head,
/* Look for another ref that points there */
for (r = refs; r; r = r->next) {
if (r != head &&
- !prefixcmp(r->name, "refs/heads/") &&
+ starts_with(r->name, "refs/heads/") &&
!hashcmp(r->old_sha1, head->old_sha1)) {
*tail = copy_ref(r);
tail = &((*tail)->next);
@@ -1954,25 +2064,37 @@ static int get_stale_heads_cb(const char *refname,
const unsigned char *sha1, int flags, void *cb_data)
{
struct stale_heads_info *info = cb_data;
+ struct string_list matches = STRING_LIST_INIT_DUP;
struct refspec query;
+ int i, stale = 1;
memset(&query, 0, sizeof(struct refspec));
query.dst = (char *)refname;
- if (query_refspecs(info->refs, info->ref_count, &query))
- return 0; /* No matches */
+ query_refspecs_multiple(info->refs, info->ref_count, &query, &matches);
+ if (matches.nr == 0)
+ goto clean_exit; /* No matches */
/*
* If we did find a suitable refspec and it's not a symref and
* it's not in the list of refs that currently exist in that
- * remote we consider it to be stale.
+ * remote, we consider it to be stale. In order to deal with
+ * overlapping refspecs, we need to go over all of the
+ * matching refs.
*/
- if (!((flags & REF_ISSYMREF) ||
- string_list_has_string(info->ref_names, query.src))) {
+ if (flags & REF_ISSYMREF)
+ goto clean_exit;
+
+ for (i = 0; stale && i < matches.nr; i++)
+ if (string_list_has_string(info->ref_names, matches.items[i].string))
+ stale = 0;
+
+ if (stale) {
struct ref *ref = make_linked_ref(refname, &info->stale_refs_tail);
hashcpy(ref->new_sha1, sha1);
}
- free(query.src);
+clean_exit:
+ string_list_clear(&matches, 0);
return 0;
}
@@ -2083,7 +2205,7 @@ static void apply_cas(struct push_cas_option *cas,
/* Find an explicit --<option>=<name>[:<value>] entry */
for (i = 0; i < cas->nr; i++) {
struct push_cas *entry = &cas->entry[i];
- if (!refname_match(entry->refname, ref->name, ref_rev_parse_rules))
+ if (!refname_match(entry->refname, ref->name))
continue;
ref->expect_old_sha1 = 1;
if (!entry->use_tracking)