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-rw-r--r--remote.c279
1 files changed, 221 insertions, 58 deletions
diff --git a/remote.c b/remote.c
index f61a3ab399..baa50aab65 100644
--- a/remote.c
+++ b/remote.c
@@ -4,6 +4,8 @@
#include "commit.h"
#include "diff.h"
#include "revision.h"
+#include "dir.h"
+#include "tag.h"
static struct refspec s_tag_refspec = {
0,
@@ -37,6 +39,7 @@ static int branches_nr;
static struct branch *current_branch;
static const char *default_remote_name;
+static int explicit_default_remote_name;
static struct rewrite **rewrite;
static int rewrite_alloc;
@@ -69,7 +72,7 @@ static const char *alias_url(const char *url)
if (!longest)
return url;
- ret = malloc(rewrite[longest_i]->baselen +
+ ret = xmalloc(rewrite[longest_i]->baselen +
(strlen(url) - longest->len) + 1);
strcpy(ret, rewrite[longest_i]->base);
strcpy(ret + rewrite[longest_i]->baselen, url + longest->len);
@@ -152,7 +155,7 @@ static struct branch *make_branch(const char *name, int len)
ret->name = xstrndup(name, len);
else
ret->name = xstrdup(name);
- refname = malloc(strlen(name) + strlen("refs/heads/") + 1);
+ refname = xmalloc(strlen(name) + strlen("refs/heads/") + 1);
strcpy(refname, "refs/heads/");
strcpy(refname + strlen("refs/heads/"), ret->name);
ret->refname = refname;
@@ -201,6 +204,7 @@ static void read_remotes_file(struct remote *remote)
if (!f)
return;
+ remote->origin = REMOTE_REMOTES;
while (fgets(buffer, BUF_SIZE, f)) {
int value_list;
char *s, *p;
@@ -245,7 +249,7 @@ static void read_branches_file(struct remote *remote)
{
const char *slash = strchr(remote->name, '/');
char *frag;
- struct strbuf branch;
+ struct strbuf branch = STRBUF_INIT;
int n = slash ? slash - remote->name : 1000;
FILE *f = fopen(git_path("branches/%.*s", n, remote->name), "r");
char *s, *p;
@@ -261,6 +265,7 @@ static void read_branches_file(struct remote *remote)
s++;
if (!*s)
return;
+ remote->origin = REMOTE_BRANCHES;
p = s + strlen(s);
while (isspace(p[-1]))
*--p = 0;
@@ -283,7 +288,6 @@ static void read_branches_file(struct remote *remote)
* #branch specified. The "master" (or specified) branch is
* fetched and stored in the local branch of the same name.
*/
- strbuf_init(&branch, 0);
frag = strchr(p, '#');
if (frag) {
*(frag++) = '\0';
@@ -298,6 +302,17 @@ static void read_branches_file(struct remote *remote)
}
add_url_alias(remote, p);
add_fetch_refspec(remote, strbuf_detach(&branch, 0));
+ /*
+ * Cogito compatible push: push current HEAD to remote #branch
+ * (master if missing)
+ */
+ strbuf_init(&branch, 0);
+ strbuf_addstr(&branch, "HEAD");
+ if (frag)
+ strbuf_addf(&branch, ":refs/heads/%s", frag);
+ else
+ strbuf_addstr(&branch, ":refs/heads/master");
+ add_push_refspec(remote, strbuf_detach(&branch, 0));
remote->fetch_tags = 1; /* always auto-follow */
}
@@ -317,8 +332,10 @@ static int handle_config(const char *key, const char *value, void *cb)
if (!value)
return config_error_nonbool(key);
branch->remote_name = xstrdup(value);
- if (branch == current_branch)
+ if (branch == current_branch) {
default_remote_name = branch->remote_name;
+ explicit_default_remote_name = 1;
+ }
} else if (!strcmp(subkey, ".merge")) {
if (!value)
return config_error_nonbool(key);
@@ -342,14 +359,16 @@ static int handle_config(const char *key, const char *value, void *cb)
if (prefixcmp(key, "remote."))
return 0;
name = key + 7;
+ if (*name == '/') {
+ warning("Config remote shorthand cannot begin with '/': %s",
+ name);
+ return 0;
+ }
subkey = strrchr(name, '.');
if (!subkey)
return error("Config with no key for remote %s", name);
- if (*subkey == '/') {
- warning("Config remote shorthand cannot begin with '/': %s", name);
- return 0;
- }
remote = make_remote(name, subkey - name);
+ remote->origin = REMOTE_CONFIG;
if (!strcmp(subkey, ".mirror"))
remote->mirror = git_config_bool(key, value);
else if (!strcmp(subkey, ".skipdefaultupdate"))
@@ -449,6 +468,26 @@ static int verify_refname(char *name, int is_glob)
return result;
}
+/*
+ * This function frees a refspec array.
+ * Warning: code paths should be checked to ensure that the src
+ * and dst pointers are always freeable pointers as well
+ * as the refspec pointer itself.
+ */
+static void free_refspecs(struct refspec *refspec, int nr_refspec)
+{
+ int i;
+
+ if (!refspec)
+ return;
+
+ for (i = 0; i < nr_refspec; i++) {
+ free(refspec[i].src);
+ free(refspec[i].dst);
+ }
+ free(refspec);
+}
+
static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify)
{
int i;
@@ -460,7 +499,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
int is_glob;
const char *lhs, *rhs;
- llen = is_glob = 0;
+ is_glob = 0;
lhs = refspec[i];
if (*lhs == '+') {
@@ -567,7 +606,12 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
invalid:
if (verify) {
- free(rs);
+ /*
+ * 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_refspecs(rs, i+1);
return NULL;
}
die("Invalid refspec '%s'", refspec[i]);
@@ -579,8 +623,7 @@ int valid_fetch_refspec(const char *fetch_refspec_str)
struct refspec *refspec;
refspec = parse_refspec_internal(1, fetch_refspec, 1, 1);
- if (refspec)
- free(refspec);
+ free_refspecs(refspec, 1);
return !!refspec;
}
@@ -589,17 +632,14 @@ struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec)
return parse_refspec_internal(nr_refspec, refspec, 1, 0);
}
-struct refspec *parse_push_refspec(int nr_refspec, const char **refspec)
+static struct refspec *parse_push_refspec(int nr_refspec, const char **refspec)
{
return parse_refspec_internal(nr_refspec, refspec, 0, 0);
}
static int valid_remote_nick(const char *name)
{
- if (!name[0] || /* not empty */
- (name[0] == '.' && /* not "." */
- (!name[1] || /* not ".." */
- (name[1] == '.' && !name[2]))))
+ if (!name[0] || is_dot_or_dotdot(name))
return 0;
return !strchr(name, '/'); /* no slash */
}
@@ -607,10 +647,16 @@ static int valid_remote_nick(const char *name)
struct remote *remote_get(const char *name)
{
struct remote *ret;
+ int name_given = 0;
read_config();
- if (!name)
+ if (name)
+ name_given = 1;
+ else {
name = default_remote_name;
+ name_given = explicit_default_remote_name;
+ }
+
ret = make_remote(name, 0);
if (valid_remote_nick(name)) {
if (!ret->url)
@@ -618,7 +664,7 @@ struct remote *remote_get(const char *name)
if (!ret->url)
read_branches_file(ret);
}
- if (!ret->url)
+ if (name_given && !ret->url)
add_url_alias(ret, name);
if (!ret->url)
return NULL;
@@ -725,26 +771,35 @@ int remote_find_tracking(struct remote *remote, struct refspec *refspec)
return -1;
}
-struct ref *alloc_ref(unsigned namelen)
+static struct ref *alloc_ref_with_prefix(const char *prefix, size_t prefixlen,
+ const char *name)
{
- struct ref *ret = xmalloc(sizeof(struct ref) + namelen);
- memset(ret, 0, sizeof(struct ref) + namelen);
- return ret;
+ size_t len = strlen(name);
+ struct ref *ref = xcalloc(1, sizeof(struct ref) + prefixlen + len + 1);
+ memcpy(ref->name, prefix, prefixlen);
+ memcpy(ref->name + prefixlen, name, len);
+ return ref;
}
-struct ref *alloc_ref_from_str(const char* str)
+struct ref *alloc_ref(const char *name)
{
- struct ref *ret = alloc_ref(strlen(str) + 1);
- strcpy(ret->name, str);
- return ret;
+ return alloc_ref_with_prefix("", 0, name);
}
static struct ref *copy_ref(const struct ref *ref)
{
- struct ref *ret = xmalloc(sizeof(struct ref) + strlen(ref->name) + 1);
- memcpy(ret, ref, sizeof(struct ref) + strlen(ref->name) + 1);
- ret->next = NULL;
- return ret;
+ struct ref *cpy;
+ size_t len;
+ if (!ref)
+ return NULL;
+ len = strlen(ref->name);
+ cpy = xmalloc(sizeof(struct ref) + len + 1);
+ memcpy(cpy, ref, sizeof(struct ref) + len + 1);
+ cpy->next = NULL;
+ cpy->symref = ref->symref ? xstrdup(ref->symref) : NULL;
+ cpy->remote_status = ref->remote_status ? xstrdup(ref->remote_status) : NULL;
+ cpy->peer_ref = copy_ref(ref->peer_ref);
+ return cpy;
}
struct ref *copy_ref_list(const struct ref *ref)
@@ -759,10 +814,11 @@ struct ref *copy_ref_list(const struct ref *ref)
return ret;
}
-void free_ref(struct ref *ref)
+static void free_ref(struct ref *ref)
{
if (!ref)
return;
+ free_ref(ref->peer_ref);
free(ref->remote_status);
free(ref->symref);
free(ref);
@@ -773,7 +829,6 @@ void free_refs(struct ref *ref)
struct ref *next;
while (ref) {
next = ref->next;
- free(ref->peer_ref);
free_ref(ref);
ref = next;
}
@@ -847,21 +902,20 @@ static struct ref *try_explicit_object_name(const char *name)
struct ref *ref;
if (!*name) {
- ref = alloc_ref(20);
- strcpy(ref->name, "(delete)");
+ ref = alloc_ref("(delete)");
hashclr(ref->new_sha1);
return ref;
}
if (get_sha1(name, sha1))
return NULL;
- ref = alloc_ref_from_str(name);
+ ref = alloc_ref(name);
hashcpy(ref->new_sha1, sha1);
return ref;
}
static struct ref *make_linked_ref(const char *name, struct ref ***tail)
{
- struct ref *ret = alloc_ref_from_str(name);
+ struct ref *ret = alloc_ref(name);
tail_link_ref(ret, tail);
return ret;
}
@@ -891,6 +945,7 @@ static int match_explicit(struct ref *src, struct ref *dst,
struct refspec *rs)
{
struct ref *matched_src, *matched_dst;
+ int copy_src;
const char *dst_value = rs->dst;
char *dst_guess;
@@ -901,6 +956,7 @@ static int match_explicit(struct ref *src, struct ref *dst,
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
@@ -910,6 +966,7 @@ static int match_explicit(struct ref *src, struct ref *dst,
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);
@@ -955,7 +1012,7 @@ 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 = matched_src;
+ matched_dst->peer_ref = copy_src ? copy_ref(matched_src) : matched_src;
matched_dst->force = rs->force;
}
return 0;
@@ -1004,6 +1061,7 @@ int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail,
struct refspec *rs;
int send_all = flags & MATCH_REFS_ALL;
int send_mirror = flags & MATCH_REFS_MIRROR;
+ int errs;
static const char *default_refspec[] = { ":", 0 };
if (!nr_refspec) {
@@ -1011,8 +1069,7 @@ int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail,
refspec = default_refspec;
}
rs = parse_push_refspec(nr_refspec, (const char **) refspec);
- if (match_explicit_refs(src, dst, dst_tail, rs, nr_refspec))
- return -1;
+ errs = match_explicit_refs(src, dst, dst_tail, rs, nr_refspec);
/* pick the remainder */
for ( ; src; src = src->next) {
@@ -1063,11 +1120,13 @@ int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail,
dst_peer = make_linked_ref(dst_name, dst_tail);
hashcpy(dst_peer->new_sha1, src->new_sha1);
}
- dst_peer->peer_ref = src;
+ dst_peer->peer_ref = copy_ref(src);
dst_peer->force = pat->force;
free_name:
free(dst_name);
}
+ if (errs)
+ return -1;
return 0;
}
@@ -1129,10 +1188,8 @@ static struct ref *get_expanded_map(const struct ref *remote_refs,
struct ref *cpy = copy_ref(ref);
match = ref->name + remote_prefix_len;
- cpy->peer_ref = alloc_ref(local_prefix_len +
- strlen(match) + 1);
- sprintf(cpy->peer_ref->name, "%s%s",
- refspec->dst, match);
+ cpy->peer_ref = alloc_ref_with_prefix(refspec->dst,
+ local_prefix_len, match);
if (refspec->force)
cpy->peer_ref->force = 1;
*tail = cpy;
@@ -1165,25 +1222,18 @@ struct ref *get_remote_ref(const struct ref *remote_refs, const char *name)
static struct ref *get_local_ref(const char *name)
{
- struct ref *ret;
if (!name)
return NULL;
- if (!prefixcmp(name, "refs/")) {
- return alloc_ref_from_str(name);
- }
+ if (!prefixcmp(name, "refs/"))
+ return alloc_ref(name);
if (!prefixcmp(name, "heads/") ||
!prefixcmp(name, "tags/") ||
- !prefixcmp(name, "remotes/")) {
- ret = alloc_ref(strlen(name) + 6);
- sprintf(ret->name, "refs/%s", name);
- return ret;
- }
+ !prefixcmp(name, "remotes/"))
+ return alloc_ref_with_prefix("refs/", 5, name);
- ret = alloc_ref(strlen(name) + 12);
- sprintf(ret->name, "refs/heads/%s", name);
- return ret;
+ return alloc_ref_with_prefix("refs/heads/", 11, name);
}
int get_fetch_map(const struct ref *remote_refs,
@@ -1242,6 +1292,54 @@ int resolve_remote_symref(struct ref *ref, struct ref *list)
return 1;
}
+static void unmark_and_free(struct commit_list *list, unsigned int mark)
+{
+ while (list) {
+ struct commit_list *temp = list;
+ temp->item->object.flags &= ~mark;
+ list = temp->next;
+ free(temp);
+ }
+}
+
+int ref_newer(const unsigned char *new_sha1, const unsigned char *old_sha1)
+{
+ struct object *o;
+ struct commit *old, *new;
+ struct commit_list *list, *used;
+ int found = 0;
+
+ /* Both new and old must be commit-ish and new is descendant of
+ * old. Otherwise we require --force.
+ */
+ o = deref_tag(parse_object(old_sha1), NULL, 0);
+ if (!o || o->type != OBJ_COMMIT)
+ return 0;
+ old = (struct commit *) o;
+
+ o = deref_tag(parse_object(new_sha1), NULL, 0);
+ if (!o || o->type != OBJ_COMMIT)
+ return 0;
+ new = (struct commit *) o;
+
+ if (parse_commit(new) < 0)
+ return 0;
+
+ used = list = NULL;
+ commit_list_insert(new, &list);
+ while (list) {
+ new = pop_most_recent_commit(&list, TMP_MARK);
+ commit_list_insert(new, &used);
+ if (new == old) {
+ found = 1;
+ break;
+ }
+ }
+ unmark_and_free(list, TMP_MARK);
+ unmark_and_free(used, TMP_MARK);
+ return found;
+}
+
/*
* Return true if there is anything to report, otherwise false.
*/
@@ -1349,3 +1447,68 @@ int format_tracking_info(struct branch *branch, struct strbuf *sb)
base, num_ours, num_theirs);
return 1;
}
+
+static int one_local_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
+{
+ struct ref ***local_tail = cb_data;
+ struct ref *ref;
+ int len;
+
+ /* we already know it starts with refs/ to get here */
+ if (check_ref_format(refname + 5))
+ return 0;
+
+ len = strlen(refname) + 1;
+ ref = xcalloc(1, sizeof(*ref) + len);
+ hashcpy(ref->new_sha1, sha1);
+ memcpy(ref->name, refname, len);
+ **local_tail = ref;
+ *local_tail = &ref->next;
+ return 0;
+}
+
+struct ref *get_local_heads(void)
+{
+ struct ref *local_refs, **local_tail = &local_refs;
+ for_each_ref(one_local_ref, &local_tail);
+ return local_refs;
+}
+
+struct ref *guess_remote_head(const struct ref *head,
+ const struct ref *refs,
+ int all)
+{
+ const struct ref *r;
+ struct ref *list = NULL;
+ struct ref **tail = &list;
+
+ if (!head)
+ return NULL;
+
+ /*
+ * Some transports support directly peeking at
+ * where HEAD points; if that is the case, then
+ * we don't have to guess.
+ */
+ if (head->symref)
+ return copy_ref(find_ref_by_name(refs, head->symref));
+
+ /* If refs/heads/master could be right, it is. */
+ if (!all) {
+ r = find_ref_by_name(refs, "refs/heads/master");
+ if (r && !hashcmp(r->old_sha1, head->old_sha1))
+ return copy_ref(r);
+ }
+
+ /* Look for another ref that points there */
+ for (r = refs; r; r = r->next) {
+ if (r != head && !hashcmp(r->old_sha1, head->old_sha1)) {
+ *tail = copy_ref(r);
+ tail = &((*tail)->next);
+ if (!all)
+ break;
+ }
+ }
+
+ return list;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-17 12:49:22 +0000