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Diffstat (limited to 'remote.c')
-rw-r--r--remote.c997
1 files changed, 771 insertions, 226 deletions
diff --git a/remote.c b/remote.c
index ff2c802167..6833538829 100644
--- a/remote.c
+++ b/remote.c
@@ -1,13 +1,22 @@
#include "cache.h"
#include "remote.h"
#include "refs.h"
+#include "commit.h"
+#include "diff.h"
+#include "revision.h"
+#include "dir.h"
+#include "tag.h"
+#include "string-list.h"
+#include "mergesort.h"
+
+enum map_direction { FROM_SRC, FROM_DST };
static struct refspec s_tag_refspec = {
0,
1,
0,
- "refs/tags/",
- "refs/tags/"
+ "refs/tags/*",
+ "refs/tags/*"
};
const struct refspec *tag_refspec = &s_tag_refspec;
@@ -23,6 +32,11 @@ struct rewrite {
int instead_of_nr;
int instead_of_alloc;
};
+struct rewrites {
+ struct rewrite **rewrite;
+ int rewrite_alloc;
+ int rewrite_nr;
+};
static struct remote **remotes;
static int remotes_alloc;
@@ -34,15 +48,20 @@ 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;
-static int rewrite_nr;
+static struct rewrites rewrites;
+static struct rewrites rewrites_push;
#define BUF_SIZE (2048)
static char buffer[BUF_SIZE];
-static const char *alias_url(const char *url)
+static int valid_remote(const struct remote *remote)
+{
+ return (!!remote->url) || (!!remote->foreign_vcs);
+}
+
+static const char *alias_url(const char *url, struct rewrites *r)
{
int i, j;
char *ret;
@@ -51,14 +70,14 @@ static const char *alias_url(const char *url)
longest = NULL;
longest_i = -1;
- for (i = 0; i < rewrite_nr; i++) {
- if (!rewrite[i])
+ for (i = 0; i < r->rewrite_nr; i++) {
+ if (!r->rewrite[i])
continue;
- for (j = 0; j < rewrite[i]->instead_of_nr; j++) {
- if (!prefixcmp(url, rewrite[i]->instead_of[j].s) &&
+ for (j = 0; j < r->rewrite[i]->instead_of_nr; j++) {
+ if (!prefixcmp(url, r->rewrite[i]->instead_of[j].s) &&
(!longest ||
- longest->len < rewrite[i]->instead_of[j].len)) {
- longest = &(rewrite[i]->instead_of[j]);
+ longest->len < r->rewrite[i]->instead_of[j].len)) {
+ longest = &(r->rewrite[i]->instead_of[j]);
longest_i = i;
}
}
@@ -66,10 +85,10 @@ static const char *alias_url(const char *url)
if (!longest)
return url;
- ret = malloc(rewrite[longest_i]->baselen +
+ ret = xmalloc(r->rewrite[longest_i]->baselen +
(strlen(url) - longest->len) + 1);
- strcpy(ret, rewrite[longest_i]->base);
- strcpy(ret + rewrite[longest_i]->baselen, url + longest->len);
+ strcpy(ret, r->rewrite[longest_i]->base);
+ strcpy(ret + r->rewrite[longest_i]->baselen, url + longest->len);
return ret;
}
@@ -95,9 +114,23 @@ static void add_url(struct remote *remote, const char *url)
remote->url[remote->url_nr++] = url;
}
+static void add_pushurl(struct remote *remote, const char *pushurl)
+{
+ ALLOC_GROW(remote->pushurl, remote->pushurl_nr + 1, remote->pushurl_alloc);
+ remote->pushurl[remote->pushurl_nr++] = pushurl;
+}
+
+static void add_pushurl_alias(struct remote *remote, const char *url)
+{
+ const char *pushurl = alias_url(url, &rewrites_push);
+ if (pushurl != url)
+ add_pushurl(remote, pushurl);
+}
+
static void add_url_alias(struct remote *remote, const char *url)
{
- add_url(remote, alias_url(url));
+ add_url(remote, alias_url(url, &rewrites));
+ add_pushurl_alias(remote, url);
}
static struct remote *make_remote(const char *name, int len)
@@ -149,7 +182,7 @@ 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;
@@ -157,22 +190,22 @@ static struct branch *make_branch(const char *name, int len)
return ret;
}
-static struct rewrite *make_rewrite(const char *base, int len)
+static struct rewrite *make_rewrite(struct rewrites *r, const char *base, int len)
{
struct rewrite *ret;
int i;
- for (i = 0; i < rewrite_nr; i++) {
+ for (i = 0; i < r->rewrite_nr; i++) {
if (len
- ? (len == rewrite[i]->baselen &&
- !strncmp(base, rewrite[i]->base, len))
- : !strcmp(base, rewrite[i]->base))
- return rewrite[i];
+ ? (len == r->rewrite[i]->baselen &&
+ !strncmp(base, r->rewrite[i]->base, len))
+ : !strcmp(base, r->rewrite[i]->base))
+ return r->rewrite[i];
}
- ALLOC_GROW(rewrite, rewrite_nr + 1, rewrite_alloc);
+ ALLOC_GROW(r->rewrite, r->rewrite_nr + 1, r->rewrite_alloc);
ret = xcalloc(1, sizeof(struct rewrite));
- rewrite[rewrite_nr++] = ret;
+ r->rewrite[r->rewrite_nr++] = ret;
if (len) {
ret->base = xstrndup(base, len);
ret->baselen = len;
@@ -198,6 +231,7 @@ 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;
@@ -242,7 +276,7 @@ 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;
@@ -258,6 +292,7 @@ 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;
@@ -280,7 +315,6 @@ 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';
@@ -294,7 +328,18 @@ static void read_branches_file(struct remote *remote)
strbuf_addstr(&branch, "HEAD:");
}
add_url_alias(remote, p);
- add_fetch_refspec(remote, strbuf_detach(&branch, 0));
+ add_fetch_refspec(remote, strbuf_detach(&branch, NULL));
+ /*
+ * 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, NULL));
remote->fetch_tags = 1; /* always auto-follow */
}
@@ -314,8 +359,10 @@ 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);
@@ -329,8 +376,13 @@ static int handle_config(const char *key, const char *value, void *cb)
subkey = strrchr(name, '.');
if (!subkey)
return 0;
- rewrite = make_rewrite(name, subkey - name);
if (!strcmp(subkey, ".insteadof")) {
+ rewrite = make_rewrite(&rewrites, name, subkey - name);
+ if (!value)
+ return config_error_nonbool(key);
+ add_instead_of(rewrite, xstrdup(value));
+ } else if (!strcmp(subkey, ".pushinsteadof")) {
+ rewrite = make_rewrite(&rewrites_push, name, subkey - name);
if (!value)
return config_error_nonbool(key);
add_instead_of(rewrite, xstrdup(value));
@@ -339,24 +391,32 @@ 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"))
remote->skip_default_update = git_config_bool(key, value);
-
+ else if (!strcmp(subkey, ".skipfetchall"))
+ remote->skip_default_update = git_config_bool(key, value);
else if (!strcmp(subkey, ".url")) {
const char *v;
if (git_config_string(&v, key, value))
return -1;
add_url(remote, v);
+ } else if (!strcmp(subkey, ".pushurl")) {
+ const char *v;
+ if (git_config_string(&v, key, value))
+ return -1;
+ add_pushurl(remote, v);
} else if (!strcmp(subkey, ".push")) {
const char *v;
if (git_config_string(&v, key, value))
@@ -386,9 +446,13 @@ static int handle_config(const char *key, const char *value, void *cb)
} else if (!strcmp(subkey, ".tagopt")) {
if (!strcmp(value, "--no-tags"))
remote->fetch_tags = -1;
+ else if (!strcmp(value, "--tags"))
+ remote->fetch_tags = 2;
} else if (!strcmp(subkey, ".proxy")) {
return git_config_string((const char **)&remote->http_proxy,
key, value);
+ } else if (!strcmp(subkey, ".vcs")) {
+ return git_config_string(&remote->foreign_vcs, key, value);
}
return 0;
}
@@ -397,10 +461,17 @@ static void alias_all_urls(void)
{
int i, j;
for (i = 0; i < remotes_nr; i++) {
+ int add_pushurl_aliases;
if (!remotes[i])
continue;
+ for (j = 0; j < remotes[i]->pushurl_nr; j++) {
+ remotes[i]->pushurl[j] = alias_url(remotes[i]->pushurl[j], &rewrites);
+ }
+ add_pushurl_aliases = remotes[i]->pushurl_nr == 0;
for (j = 0; j < remotes[i]->url_nr; j++) {
- remotes[i]->url[j] = alias_url(remotes[i]->url[j]);
+ if (add_pushurl_aliases)
+ add_pushurl_alias(remotes[i], remotes[i]->url[j]);
+ remotes[i]->url[j] = alias_url(remotes[i]->url[j], &rewrites);
}
}
}
@@ -410,11 +481,11 @@ static void read_config(void)
unsigned char sha1[20];
const char *head_ref;
int flag;
- if (default_remote_name) // did this already
+ if (default_remote_name) /* did this already */
return;
default_remote_name = xstrdup("origin");
current_branch = NULL;
- head_ref = resolve_ref("HEAD", sha1, 0, &flag);
+ head_ref = resolve_ref_unsafe("HEAD", sha1, 0, &flag);
if (head_ref && (flag & REF_ISSYMREF) &&
!prefixcmp(head_ref, "refs/heads/")) {
current_branch =
@@ -424,18 +495,38 @@ static void read_config(void)
alias_all_urls();
}
+/*
+ * 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;
- int st;
struct refspec *rs = xcalloc(sizeof(*rs), nr_refspec);
for (i = 0; i < nr_refspec; i++) {
- size_t llen, rlen;
+ size_t llen;
int is_glob;
const char *lhs, *rhs;
+ int flags;
- llen = rlen = is_glob = 0;
+ is_glob = 0;
lhs = refspec[i];
if (*lhs == '+') {
@@ -455,26 +546,23 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
}
if (rhs) {
- rhs++;
- rlen = strlen(rhs);
- is_glob = (2 <= rlen && !strcmp(rhs + rlen - 2, "/*"));
- if (is_glob)
- rlen -= 2;
+ 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 (2 <= llen && !memcmp(lhs + llen - 2, "/*", 2)) {
+ if (1 <= llen && memchr(lhs, '*', llen)) {
if ((rhs && !is_glob) || (!rhs && fetch))
goto invalid;
is_glob = 1;
- llen -= 2;
} else if (rhs && is_glob) {
goto invalid;
}
rs[i].pattern = is_glob;
rs[i].src = xstrndup(lhs, llen);
+ flags = REFNAME_ALLOW_ONELEVEL | (is_glob ? REFNAME_REFSPEC_PATTERN : 0);
if (fetch) {
/*
@@ -484,26 +572,20 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
*/
if (!*rs[i].src)
; /* empty is ok */
- else {
- st = check_ref_format(rs[i].src);
- if (st && st != CHECK_REF_FORMAT_ONELEVEL)
- goto invalid;
- }
+ else if (check_refname_format(rs[i].src, flags))
+ goto invalid;
/*
* RHS
* - missing is ok, and is same as empty.
* - empty is ok; it means not to store.
* - otherwise it must be a valid looking ref.
*/
- if (!rs[i].dst) {
+ if (!rs[i].dst)
; /* ok */
- } else if (!*rs[i].dst) {
+ else if (!*rs[i].dst)
; /* ok */
- } else {
- st = check_ref_format(rs[i].dst);
- if (st && st != CHECK_REF_FORMAT_ONELEVEL)
- goto invalid;
- }
+ else if (check_refname_format(rs[i].dst, flags))
+ goto invalid;
} else {
/*
* LHS
@@ -515,8 +597,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
if (!*rs[i].src)
; /* empty is ok */
else if (is_glob) {
- st = check_ref_format(rs[i].src);
- if (st && st != CHECK_REF_FORMAT_ONELEVEL)
+ if (check_refname_format(rs[i].src, flags))
goto invalid;
}
else
@@ -529,14 +610,12 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
* - otherwise it must be a valid looking ref.
*/
if (!rs[i].dst) {
- st = check_ref_format(rs[i].src);
- if (st && st != CHECK_REF_FORMAT_ONELEVEL)
+ if (check_refname_format(rs[i].src, flags))
goto invalid;
} else if (!*rs[i].dst) {
goto invalid;
} else {
- st = check_ref_format(rs[i].dst);
- if (st && st != CHECK_REF_FORMAT_ONELEVEL)
+ if (check_refname_format(rs[i].dst, flags))
goto invalid;
}
}
@@ -545,7 +624,12 @@ 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]);
@@ -553,12 +637,10 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
int valid_fetch_refspec(const char *fetch_refspec_str)
{
- const char *fetch_refspec[] = { fetch_refspec_str };
struct refspec *refspec;
- refspec = parse_refspec_internal(1, fetch_refspec, 1, 1);
- if (refspec)
- free(refspec);
+ refspec = parse_refspec_internal(1, &fetch_refspec_str, 1, 1);
+ free_refspecs(refspec, 1);
return !!refspec;
}
@@ -567,17 +649,24 @@ 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);
}
+void free_refspec(int nr_refspec, struct refspec *refspec)
+{
+ int i;
+ for (i = 0; i < nr_refspec; i++) {
+ free(refspec[i].src);
+ free(refspec[i].dst);
+ }
+ free(refspec);
+}
+
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 */
}
@@ -585,26 +674,43 @@ 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)
+ if (!valid_remote(ret))
read_remotes_file(ret);
- if (!ret->url)
+ if (!valid_remote(ret))
read_branches_file(ret);
}
- if (!ret->url)
+ if (name_given && !valid_remote(ret))
add_url_alias(ret, name);
- if (!ret->url)
+ if (!valid_remote(ret))
return NULL;
ret->fetch = parse_fetch_refspec(ret->fetch_refspec_nr, ret->fetch_refspec);
ret->push = parse_push_refspec(ret->push_refspec_nr, ret->push_refspec);
return ret;
}
+int remote_is_configured(const char *name)
+{
+ int i;
+ read_config();
+
+ for (i = 0; i < remotes_nr; i++)
+ if (!strcmp(name, remotes[i]->name))
+ return 1;
+ return 0;
+}
+
int for_each_remote(each_remote_fn fn, void *priv)
{
int i, result = 0;
@@ -626,29 +732,33 @@ int for_each_remote(each_remote_fn fn, void *priv)
void ref_remove_duplicates(struct ref *ref_map)
{
- struct ref **posn;
- struct ref *next;
- for (; ref_map; ref_map = ref_map->next) {
+ 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;
- posn = &ref_map->next;
- while (*posn) {
- if ((*posn)->peer_ref &&
- !strcmp((*posn)->peer_ref->name,
- ref_map->peer_ref->name)) {
- if (strcmp((*posn)->name, ref_map->name))
- die("%s tracks both %s and %s",
- ref_map->peer_ref->name,
- (*posn)->name, ref_map->name);
- next = (*posn)->next;
- free((*posn)->peer_ref);
- free(*posn);
- *posn = next;
- } else {
- posn = &(*posn)->next;
- }
+
+ 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;
}
+
+ item = string_list_insert(&refs, ref_map->peer_ref->name);
+ item->util = ref_map;
}
+ string_list_clear(&refs, 0);
}
int remote_has_url(struct remote *remote, const char *url)
@@ -661,69 +771,120 @@ int remote_has_url(struct remote *remote, const char *url)
return 0;
}
-int remote_find_tracking(struct remote *remote, struct refspec *refspec)
+static int match_name_with_pattern(const char *key, const char *name,
+ const char *value, char **result)
+{
+ const char *kstar = strchr(key, '*');
+ size_t klen;
+ size_t ksuffixlen;
+ size_t namelen;
+ int ret;
+ if (!kstar)
+ die("Key '%s' of pattern had no '*'", key);
+ klen = kstar - key;
+ ksuffixlen = strlen(kstar + 1);
+ namelen = strlen(name);
+ ret = !strncmp(name, key, klen) && namelen >= klen + ksuffixlen &&
+ !memcmp(name + namelen - ksuffixlen, kstar + 1, ksuffixlen);
+ if (ret && value) {
+ const char *vstar = strchr(value, '*');
+ size_t vlen;
+ size_t vsuffixlen;
+ if (!vstar)
+ die("Value '%s' of pattern has no '*'", value);
+ vlen = vstar - value;
+ vsuffixlen = strlen(vstar + 1);
+ *result = xmalloc(vlen + vsuffixlen +
+ strlen(name) -
+ klen - ksuffixlen + 1);
+ strncpy(*result, value, vlen);
+ strncpy(*result + vlen,
+ name + klen, namelen - klen - ksuffixlen);
+ strcpy(*result + vlen + namelen - klen - ksuffixlen,
+ vstar + 1);
+ }
+ return ret;
+}
+
+static int query_refspecs(struct refspec *refs, int ref_count, struct refspec *query)
{
- int find_src = refspec->src == NULL;
- char *needle, **result;
int i;
+ int find_src = !query->src;
- if (find_src) {
- if (!refspec->dst)
- return error("find_tracking: need either src or dst");
- needle = refspec->dst;
- result = &refspec->src;
- } else {
- needle = refspec->src;
- result = &refspec->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;
+ const char *needle = find_src ? query->dst : query->src;
+ char **result = find_src ? &query->src : &query->dst;
- for (i = 0; i < remote->fetch_refspec_nr; i++) {
- struct refspec *fetch = &remote->fetch[i];
- const char *key = find_src ? fetch->dst : fetch->src;
- const char *value = find_src ? fetch->src : fetch->dst;
- if (!fetch->dst)
+ if (!refspec->dst)
continue;
- if (fetch->pattern) {
- if (!prefixcmp(needle, key) &&
- needle[strlen(key)] == '/') {
- *result = xmalloc(strlen(value) +
- strlen(needle) -
- strlen(key) + 1);
- strcpy(*result, value);
- strcpy(*result + strlen(value),
- needle + strlen(key));
- refspec->force = fetch->force;
+ if (refspec->pattern) {
+ if (match_name_with_pattern(key, needle, value, result)) {
+ query->force = refspec->force;
return 0;
}
} else if (!strcmp(needle, key)) {
*result = xstrdup(value);
- refspec->force = fetch->force;
+ query->force = refspec->force;
return 0;
}
}
return -1;
}
-struct ref *alloc_ref(unsigned namelen)
+char *apply_refspecs(struct refspec *refspecs, int nr_refspec,
+ const char *name)
{
- struct ref *ret = xmalloc(sizeof(struct ref) + namelen);
- memset(ret, 0, sizeof(struct ref) + namelen);
- return ret;
+ struct refspec query;
+
+ memset(&query, 0, sizeof(struct refspec));
+ query.src = (char *)name;
+
+ if (query_refspecs(refspecs, nr_refspec, &query))
+ return NULL;
+
+ return query.dst;
}
-struct ref *alloc_ref_from_str(const char* str)
+int remote_find_tracking(struct remote *remote, struct refspec *refspec)
{
- struct ref *ret = alloc_ref(strlen(str) + 1);
- strcpy(ret->name, str);
- return ret;
+ return query_refspecs(remote->fetch, remote->fetch_refspec_nr, refspec);
}
-static struct ref *copy_ref(const struct ref *ref)
+static struct ref *alloc_ref_with_prefix(const char *prefix, size_t prefixlen,
+ const char *name)
{
- 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;
+ 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(const char *name)
+{
+ return alloc_ref_with_prefix("", 0, name);
+}
+
+struct ref *copy_ref(const struct ref *ref)
+{
+ 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)
@@ -738,10 +899,11 @@ 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);
@@ -752,12 +914,32 @@ void free_refs(struct ref *ref)
struct ref *next;
while (ref) {
next = ref->next;
- free(ref->peer_ref);
free_ref(ref);
ref = next;
}
}
+int ref_compare_name(const void *va, const void *vb)
+{
+ const struct ref *a = va, *b = vb;
+ return strcmp(a->name, b->name);
+}
+
+static void *ref_list_get_next(const void *a)
+{
+ return ((const struct ref *)a)->next;
+}
+
+static void ref_list_set_next(void *a, void *next)
+{
+ ((struct ref *)a)->next = next;
+}
+
+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)
@@ -820,27 +1002,30 @@ static void tail_link_ref(struct ref *ref, struct ref ***tail)
*tail = &ref->next;
}
+static struct ref *alloc_delete_ref(void)
+{
+ struct ref *ref = alloc_ref("(delete)");
+ hashclr(ref->new_sha1);
+ return ref;
+}
+
static struct ref *try_explicit_object_name(const char *name)
{
unsigned char sha1[20];
struct ref *ref;
- if (!*name) {
- ref = alloc_ref(20);
- strcpy(ref->name, "(delete)");
- hashclr(ref->new_sha1);
- return ref;
- }
+ if (!*name)
+ return alloc_delete_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;
}
@@ -850,7 +1035,7 @@ static char *guess_ref(const char *name, struct ref *peer)
struct strbuf buf = STRBUF_INIT;
unsigned char sha1[20];
- const char *r = resolve_ref(peer->name, sha1, 1, NULL);
+ const char *r = resolve_ref_unsafe(peer->name, sha1, 1, NULL);
if (!r)
return NULL;
@@ -870,6 +1055,7 @@ 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;
@@ -880,6 +1066,7 @@ 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
@@ -889,6 +1076,7 @@ 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);
@@ -898,7 +1086,7 @@ static int match_explicit(struct ref *src, struct ref *dst,
unsigned char sha1[20];
int flag;
- dst_value = resolve_ref(matched_src->name, sha1, 1, &flag);
+ dst_value = resolve_ref_unsafe(matched_src->name, sha1, 1, &flag);
if (!dst_value ||
((flag & REF_ISSYMREF) &&
prefixcmp(dst_value, "refs/heads/")))
@@ -912,7 +1100,7 @@ static int match_explicit(struct ref *src, struct ref *dst,
case 0:
if (!memcmp(dst_value, "refs/", 5))
matched_dst = make_linked_ref(dst_value, dst_tail);
- else if((dst_guess = guess_ref(dst_value, matched_src)))
+ else if ((dst_guess = guess_ref(dst_value, matched_src)))
matched_dst = make_linked_ref(dst_guess, dst_tail);
else
error("unable to push to unqualified destination: %s\n"
@@ -934,7 +1122,7 @@ 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;
@@ -950,10 +1138,11 @@ static int match_explicit_refs(struct ref *src, struct ref *dst,
return errs;
}
-static const struct refspec *check_pattern_match(const struct refspec *rs,
- int rs_nr,
- const struct ref *src)
+static char *get_ref_match(const struct refspec *rs, int rs_nr, const struct ref *ref,
+ int send_mirror, int direction, const struct refspec **ret_pat)
{
+ const struct refspec *pat;
+ char *name;
int i;
int matching_refs = -1;
for (i = 0; i < rs_nr; i++) {
@@ -963,74 +1152,90 @@ static const struct refspec *check_pattern_match(const struct refspec *rs,
continue;
}
- if (rs[i].pattern &&
- !prefixcmp(src->name, rs[i].src) &&
- src->name[strlen(rs[i].src)] == '/')
- return rs + i;
+ if (rs[i].pattern) {
+ const char *dst_side = rs[i].dst ? rs[i].dst : rs[i].src;
+ int match;
+ if (direction == FROM_SRC)
+ match = match_name_with_pattern(rs[i].src, ref->name, dst_side, &name);
+ else
+ match = match_name_with_pattern(dst_side, ref->name, rs[i].src, &name);
+ if (match) {
+ matching_refs = i;
+ break;
+ }
+ }
}
- if (matching_refs != -1)
- return rs + matching_refs;
- else
+ if (matching_refs == -1)
return NULL;
+
+ pat = rs + matching_refs;
+ if (pat->matching) {
+ /*
+ * "matching refs"; traditionally we pushed everything
+ * including refs outside refs/heads/ hierarchy, but
+ * that does not make much sense these days.
+ */
+ if (!send_mirror && prefixcmp(ref->name, "refs/heads/"))
+ return NULL;
+ name = xstrdup(ref->name);
+ }
+ if (ret_pat)
+ *ret_pat = pat;
+ return name;
+}
+
+static struct ref **tail_ref(struct ref **head)
+{
+ struct ref **tail = head;
+ while (*tail)
+ tail = &((*tail)->next);
+ return tail;
}
/*
- * Note. This is used only by "push"; refspec matching rules for
- * push and fetch are subtly different, so do not try to reuse it
- * without thinking.
+ * 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
+ * peer_ref (which object is being pushed) and force (if the push is
+ * forced) in elements of "dst". The function may add new elements to
+ * dst (e.g. pushing to a new branch, done in match_explicit_refs).
*/
-int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail,
- int nr_refspec, const char **refspec, int flags)
+int match_push_refs(struct ref *src, struct ref **dst,
+ int nr_refspec, const char **refspec, int flags)
{
struct refspec *rs;
int send_all = flags & MATCH_REFS_ALL;
int send_mirror = flags & MATCH_REFS_MIRROR;
- static const char *default_refspec[] = { ":", 0 };
+ int send_prune = flags & MATCH_REFS_PRUNE;
+ int errs;
+ static const char *default_refspec[] = { ":", NULL };
+ struct ref *ref, **dst_tail = tail_ref(dst);
if (!nr_refspec) {
nr_refspec = 1;
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) {
+ for (ref = src; ref; ref = ref->next) {
struct ref *dst_peer;
const struct refspec *pat = NULL;
char *dst_name;
- if (src->peer_ref)
- continue;
- pat = check_pattern_match(rs, nr_refspec, src);
- if (!pat)
+ if (ref->peer_ref)
continue;
- if (pat->matching) {
- /*
- * "matching refs"; traditionally we pushed everything
- * including refs outside refs/heads/ hierarchy, but
- * that does not make much sense these days.
- */
- if (!send_mirror && prefixcmp(src->name, "refs/heads/"))
- continue;
- dst_name = xstrdup(src->name);
+ dst_name = get_ref_match(rs, nr_refspec, ref, send_mirror, FROM_SRC, &pat);
+ if (!dst_name)
+ continue;
- } else {
- const char *dst_side = pat->dst ? pat->dst : pat->src;
- dst_name = xmalloc(strlen(dst_side) +
- strlen(src->name) -
- strlen(pat->src) + 2);
- strcpy(dst_name, dst_side);
- strcat(dst_name, src->name + strlen(pat->src));
- }
- dst_peer = find_ref_by_name(dst, dst_name);
+ dst_peer = find_ref_by_name(*dst, dst_name);
if (dst_peer) {
if (dst_peer->peer_ref)
/* We're already sending something to this ref. */
goto free_name;
-
} else {
if (pat->matching && !(send_all || send_mirror))
/*
@@ -1041,17 +1246,86 @@ int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail,
goto free_name;
/* Create a new one and link it */
- dst_peer = make_linked_ref(dst_name, dst_tail);
- hashcpy(dst_peer->new_sha1, src->new_sha1);
+ dst_peer = make_linked_ref(dst_name, &dst_tail);
+ hashcpy(dst_peer->new_sha1, ref->new_sha1);
}
- dst_peer->peer_ref = src;
+ dst_peer->peer_ref = copy_ref(ref);
dst_peer->force = pat->force;
free_name:
free(dst_name);
}
+ if (send_prune) {
+ /* check for missing refs on the remote */
+ for (ref = *dst; ref; ref = ref->next) {
+ char *src_name;
+
+ if (ref->peer_ref)
+ /* We're already sending something to this ref. */
+ continue;
+
+ src_name = get_ref_match(rs, nr_refspec, ref, send_mirror, FROM_DST, NULL);
+ if (src_name) {
+ if (!find_ref_by_name(src, src_name))
+ ref->peer_ref = alloc_delete_ref();
+ free(src_name);
+ }
+ }
+ }
+ if (errs)
+ return -1;
return 0;
}
+void set_ref_status_for_push(struct ref *remote_refs, int send_mirror,
+ int force_update)
+{
+ struct ref *ref;
+
+ for (ref = remote_refs; ref; ref = ref->next) {
+ if (ref->peer_ref)
+ hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
+ else if (!send_mirror)
+ continue;
+
+ ref->deletion = is_null_sha1(ref->new_sha1);
+ if (!ref->deletion &&
+ !hashcmp(ref->old_sha1, ref->new_sha1)) {
+ ref->status = REF_STATUS_UPTODATE;
+ continue;
+ }
+
+ /* This part determines what can overwrite what.
+ * The rules are:
+ *
+ * (0) you can always use --force or +A:B notation to
+ * selectively force individual ref pairs.
+ *
+ * (1) if the old thing does not exist, it is OK.
+ *
+ * (2) if you do not have the old thing, you are not allowed
+ * to overwrite it; you would not know what you are losing
+ * otherwise.
+ *
+ * (3) if both new and old are commit-ish, and new is a
+ * descendant of old, it is OK.
+ *
+ * (4) regardless of all of the above, removing :B is
+ * always allowed.
+ */
+
+ ref->nonfastforward =
+ !ref->deletion &&
+ !is_null_sha1(ref->old_sha1) &&
+ (!has_sha1_file(ref->old_sha1)
+ || !ref_newer(ref->new_sha1, ref->old_sha1));
+
+ if (ref->nonfastforward && !ref->force && !force_update) {
+ ref->status = REF_STATUS_REJECT_NONFASTFORWARD;
+ continue;
+ }
+ }
+}
+
struct branch *branch_get(const char *name)
{
struct branch *ret;
@@ -1070,8 +1344,9 @@ struct branch *branch_get(const char *name)
for (i = 0; i < ret->merge_nr; i++) {
ret->merge[i] = xcalloc(1, sizeof(**ret->merge));
ret->merge[i]->src = xstrdup(ret->merge_name[i]);
- remote_find_tracking(ret->remote,
- ret->merge[i]);
+ if (remote_find_tracking(ret->remote, ret->merge[i])
+ && !strcmp(ret->remote_name, "."))
+ ret->merge[i]->dst = xstrdup(ret->merge_name[i]);
}
}
}
@@ -1099,21 +1374,17 @@ static struct ref *get_expanded_map(const struct ref *remote_refs,
struct ref *ret = NULL;
struct ref **tail = &ret;
- int remote_prefix_len = strlen(refspec->src);
- int local_prefix_len = strlen(refspec->dst);
+ char *expn_name;
for (ref = remote_refs; ref; ref = ref->next) {
if (strchr(ref->name, '^'))
continue; /* a dereference item */
- if (!prefixcmp(ref->name, refspec->src)) {
- const char *match;
+ if (match_name_with_pattern(refspec->src, ref->name,
+ refspec->dst, &expn_name)) {
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(expn_name);
+ free(expn_name);
if (refspec->force)
cpy->peer_ref->force = 1;
*tail = cpy;
@@ -1146,25 +1417,18 @@ 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)
+ if (!name || name[0] == '\0')
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,
@@ -1191,8 +1455,8 @@ int get_fetch_map(const struct ref *remote_refs,
for (rmp = &ref_map; *rmp; ) {
if ((*rmp)->peer_ref) {
- int st = check_ref_format((*rmp)->peer_ref->name + 5);
- if (st && st != CHECK_REF_FORMAT_ONELEVEL) {
+ if (check_refname_format((*rmp)->peer_ref->name + 5,
+ REFNAME_ALLOW_ONELEVEL)) {
struct ref *ignore = *rmp;
error("* Ignoring funny ref '%s' locally",
(*rmp)->peer_ref->name);
@@ -1222,3 +1486,284 @@ 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.
+ */
+int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs)
+{
+ unsigned char sha1[20];
+ struct commit *ours, *theirs;
+ char symmetric[84];
+ struct rev_info revs;
+ const char *rev_argv[10], *base;
+ int rev_argc;
+
+ /*
+ * Nothing to report unless we are marked to build on top of
+ * somebody else.
+ */
+ if (!branch ||
+ !branch->merge || !branch->merge[0] || !branch->merge[0]->dst)
+ return 0;
+
+ /*
+ * If what we used to build on no longer exists, there is
+ * nothing to report.
+ */
+ base = branch->merge[0]->dst;
+ if (read_ref(base, sha1))
+ return 0;
+ theirs = lookup_commit_reference(sha1);
+ if (!theirs)
+ return 0;
+
+ if (read_ref(branch->refname, sha1))
+ return 0;
+ ours = lookup_commit_reference(sha1);
+ if (!ours)
+ return 0;
+
+ /* are we the same? */
+ if (theirs == ours)
+ return 0;
+
+ /* Run "rev-list --left-right ours...theirs" internally... */
+ rev_argc = 0;
+ rev_argv[rev_argc++] = NULL;
+ rev_argv[rev_argc++] = "--left-right";
+ rev_argv[rev_argc++] = symmetric;
+ rev_argv[rev_argc++] = "--";
+ rev_argv[rev_argc] = NULL;
+
+ strcpy(symmetric, sha1_to_hex(ours->object.sha1));
+ strcpy(symmetric + 40, "...");
+ strcpy(symmetric + 43, sha1_to_hex(theirs->object.sha1));
+
+ init_revisions(&revs, NULL);
+ setup_revisions(rev_argc, rev_argv, &revs, NULL);
+ prepare_revision_walk(&revs);
+
+ /* ... and count the commits on each side. */
+ *num_ours = 0;
+ *num_theirs = 0;
+ while (1) {
+ struct commit *c = get_revision(&revs);
+ if (!c)
+ break;
+ if (c->object.flags & SYMMETRIC_LEFT)
+ (*num_ours)++;
+ else
+ (*num_theirs)++;
+ }
+
+ /* clear object flags smudged by the above traversal */
+ clear_commit_marks(ours, ALL_REV_FLAGS);
+ clear_commit_marks(theirs, ALL_REV_FLAGS);
+ return 1;
+}
+
+/*
+ * Return true when there is anything to report, otherwise false.
+ */
+int format_tracking_info(struct branch *branch, struct strbuf *sb)
+{
+ int num_ours, num_theirs;
+ const char *base;
+
+ if (!stat_tracking_info(branch, &num_ours, &num_theirs))
+ return 0;
+
+ base = branch->merge[0]->dst;
+ base = shorten_unambiguous_ref(base, 0);
+ if (!num_theirs)
+ strbuf_addf(sb,
+ Q_("Your branch is ahead of '%s' by %d commit.\n",
+ "Your branch is ahead of '%s' by %d commits.\n",
+ num_ours),
+ base, num_ours);
+ else if (!num_ours)
+ strbuf_addf(sb,
+ Q_("Your branch is behind '%s' by %d commit, "
+ "and can be fast-forwarded.\n",
+ "Your branch is behind '%s' by %d commits, "
+ "and can be fast-forwarded.\n",
+ num_theirs),
+ base, num_theirs);
+ else
+ strbuf_addf(sb,
+ Q_("Your branch and '%s' have diverged,\n"
+ "and have %d and %d different commit each, "
+ "respectively.\n",
+ "Your branch and '%s' have diverged,\n"
+ "and have %d and %d different commits each, "
+ "respectively.\n",
+ num_theirs),
+ 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_refname_format(refname + 5, 0))
+ 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 = NULL, **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 &&
+ !prefixcmp(r->name, "refs/heads/") &&
+ !hashcmp(r->old_sha1, head->old_sha1)) {
+ *tail = copy_ref(r);
+ tail = &((*tail)->next);
+ if (!all)
+ break;
+ }
+ }
+
+ return list;
+}
+
+struct stale_heads_info {
+ struct string_list *ref_names;
+ struct ref **stale_refs_tail;
+ struct refspec *refs;
+ int ref_count;
+};
+
+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 refspec query;
+ memset(&query, 0, sizeof(struct refspec));
+ query.dst = (char *)refname;
+
+ if (query_refspecs(info->refs, info->ref_count, &query))
+ return 0; /* 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.
+ */
+ if (!((flags & REF_ISSYMREF) ||
+ string_list_has_string(info->ref_names, query.src))) {
+ struct ref *ref = make_linked_ref(refname, &info->stale_refs_tail);
+ hashcpy(ref->new_sha1, sha1);
+ }
+
+ free(query.src);
+ return 0;
+}
+
+struct ref *get_stale_heads(struct refspec *refs, int ref_count, struct ref *fetch_map)
+{
+ struct ref *ref, *stale_refs = NULL;
+ struct string_list ref_names = STRING_LIST_INIT_NODUP;
+ struct stale_heads_info info;
+ info.ref_names = &ref_names;
+ info.stale_refs_tail = &stale_refs;
+ info.refs = refs;
+ info.ref_count = ref_count;
+ for (ref = fetch_map; ref; ref = ref->next)
+ string_list_append(&ref_names, ref->name);
+ sort_string_list(&ref_names);
+ for_each_ref(get_stale_heads_cb, &info);
+ string_list_clear(&ref_names, 0);
+ return stale_refs;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-17 22:54:21 +0000