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-rw-r--r--remote.c1961
1 files changed, 1479 insertions, 482 deletions
diff --git a/remote.c b/remote.c
index d7079c6dd8..af72727d76 100644
--- a/remote.c
+++ b/remote.c
@@ -5,13 +5,20 @@
#include "diff.h"
#include "revision.h"
#include "dir.h"
+#include "tag.h"
+#include "string-list.h"
+#include "mergesort.h"
+#include "argv-array.h"
+
+enum map_direction { FROM_SRC, FROM_DST };
static struct refspec s_tag_refspec = {
0,
1,
0,
- "refs/tags/",
- "refs/tags/"
+ 0,
+ "refs/tags/*",
+ "refs/tags/*"
};
const struct refspec *tag_refspec = &s_tag_refspec;
@@ -27,42 +34,48 @@ 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;
static int remotes_nr;
+static struct hashmap remotes_hash;
static struct branch **branches;
static int branches_alloc;
static int branches_nr;
static struct branch *current_branch;
-static const char *default_remote_name;
+static const char *pushremote_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 int valid_remote(const struct remote *remote)
+{
+ return (!!remote->url) || (!!remote->foreign_vcs);
+}
-static const char *alias_url(const char *url)
+static const char *alias_url(const char *url, struct rewrites *r)
{
int i, j;
- char *ret;
struct counted_string *longest;
int longest_i;
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 (starts_with(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;
}
}
@@ -70,11 +83,7 @@ static const char *alias_url(const char *url)
if (!longest)
return url;
- 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);
- return ret;
+ return xstrfmt("%s%s", r->rewrite[longest_i]->base, url + longest->len);
}
static void add_push_refspec(struct remote *remote, const char *ref)
@@ -99,30 +108,70 @@ 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);
+}
+
+struct remotes_hash_key {
+ const char *str;
+ int len;
+};
+
+static int remotes_hash_cmp(const struct remote *a, const struct remote *b, const struct remotes_hash_key *key)
+{
+ if (key)
+ return strncmp(a->name, key->str, key->len) || a->name[key->len];
+ else
+ return strcmp(a->name, b->name);
+}
+
+static inline void init_remotes_hash(void)
+{
+ if (!remotes_hash.cmpfn)
+ hashmap_init(&remotes_hash, (hashmap_cmp_fn)remotes_hash_cmp, 0);
}
static struct remote *make_remote(const char *name, int len)
{
- struct remote *ret;
- int i;
+ struct remote *ret, *replaced;
+ struct remotes_hash_key lookup;
+ struct hashmap_entry lookup_entry;
- for (i = 0; i < remotes_nr; i++) {
- if (len ? (!strncmp(name, remotes[i]->name, len) &&
- !remotes[i]->name[len]) :
- !strcmp(name, remotes[i]->name))
- return remotes[i];
- }
+ if (!len)
+ len = strlen(name);
+
+ init_remotes_hash();
+ lookup.str = name;
+ lookup.len = len;
+ hashmap_entry_init(&lookup_entry, memhash(name, len));
+
+ if ((ret = hashmap_get(&remotes_hash, &lookup_entry, &lookup)) != NULL)
+ return ret;
ret = xcalloc(1, sizeof(struct remote));
+ ret->prune = -1; /* unspecified */
ALLOC_GROW(remotes, remotes_nr + 1, remotes_alloc);
remotes[remotes_nr++] = ret;
- if (len)
- ret->name = xstrndup(name, len);
- else
- ret->name = xstrdup(name);
+ ret->name = xstrndup(name, len);
+
+ hashmap_entry_init(ret, lookup_entry.hash);
+ replaced = hashmap_put(&remotes_hash, ret);
+ assert(replaced == NULL); /* no previous entry overwritten */
return ret;
}
@@ -137,7 +186,6 @@ 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) &&
@@ -153,30 +201,27 @@ 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;
}
-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;
@@ -196,196 +241,169 @@ static void add_instead_of(struct rewrite *rewrite, const char *instead_of)
rewrite->instead_of_nr++;
}
+static const char *skip_spaces(const char *s)
+{
+ while (isspace(*s))
+ s++;
+ return s;
+}
+
static void read_remotes_file(struct remote *remote)
{
+ struct strbuf buf = STRBUF_INIT;
FILE *f = fopen(git_path("remotes/%s", remote->name), "r");
if (!f)
return;
+ remote->configured_in_repo = 1;
remote->origin = REMOTE_REMOTES;
- while (fgets(buffer, BUF_SIZE, f)) {
- int value_list;
- char *s, *p;
-
- if (!prefixcmp(buffer, "URL:")) {
- value_list = 0;
- s = buffer + 4;
- } else if (!prefixcmp(buffer, "Push:")) {
- value_list = 1;
- s = buffer + 5;
- } else if (!prefixcmp(buffer, "Pull:")) {
- value_list = 2;
- s = buffer + 5;
- } else
- continue;
-
- while (isspace(*s))
- s++;
- if (!*s)
- continue;
+ while (strbuf_getline(&buf, f) != EOF) {
+ const char *v;
- p = s + strlen(s);
- while (isspace(p[-1]))
- *--p = 0;
+ strbuf_rtrim(&buf);
- switch (value_list) {
- case 0:
- add_url_alias(remote, xstrdup(s));
- break;
- case 1:
- add_push_refspec(remote, xstrdup(s));
- break;
- case 2:
- add_fetch_refspec(remote, xstrdup(s));
- break;
- }
+ if (skip_prefix(buf.buf, "URL:", &v))
+ add_url_alias(remote, xstrdup(skip_spaces(v)));
+ else if (skip_prefix(buf.buf, "Push:", &v))
+ add_push_refspec(remote, xstrdup(skip_spaces(v)));
+ else if (skip_prefix(buf.buf, "Pull:", &v))
+ add_fetch_refspec(remote, xstrdup(skip_spaces(v)));
}
+ strbuf_release(&buf);
fclose(f);
}
static void read_branches_file(struct remote *remote)
{
- const char *slash = strchr(remote->name, '/');
char *frag;
- 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;
- int len;
+ struct strbuf buf = STRBUF_INIT;
+ FILE *f = fopen(git_path("branches/%s", remote->name), "r");
if (!f)
return;
- s = fgets(buffer, BUF_SIZE, f);
+
+ strbuf_getline_lf(&buf, f);
fclose(f);
- if (!s)
- return;
- while (isspace(*s))
- s++;
- if (!*s)
+ strbuf_trim(&buf);
+ if (!buf.len) {
+ strbuf_release(&buf);
return;
+ }
+
+ remote->configured_in_repo = 1;
remote->origin = REMOTE_BRANCHES;
- p = s + strlen(s);
- while (isspace(p[-1]))
- *--p = 0;
- len = p - s;
- if (slash)
- len += strlen(slash);
- p = xmalloc(len + 1);
- strcpy(p, s);
- if (slash)
- strcat(p, slash);
/*
- * With "slash", e.g. "git fetch jgarzik/netdev-2.6" when
- * reading from $GIT_DIR/branches/jgarzik fetches "HEAD" from
- * the partial URL obtained from the branches file plus
- * "/netdev-2.6" and does not store it in any tracking ref.
- * #branch specifier in the file is ignored.
- *
- * Otherwise, the branches file would have URL and optionally
+ * The branches file would have URL and optionally
* #branch specified. The "master" (or specified) branch is
- * fetched and stored in the local branch of the same name.
+ * fetched and stored in the local branch matching the
+ * remote name.
*/
- frag = strchr(p, '#');
- if (frag) {
+ frag = strchr(buf.buf, '#');
+ if (frag)
*(frag++) = '\0';
- strbuf_addf(&branch, "refs/heads/%s", frag);
- } else
- strbuf_addstr(&branch, "refs/heads/master");
- if (!slash) {
- strbuf_addf(&branch, ":refs/heads/%s", remote->name);
- } else {
- strbuf_reset(&branch);
- strbuf_addstr(&branch, "HEAD:");
- }
- add_url_alias(remote, p);
- add_fetch_refspec(remote, strbuf_detach(&branch, 0));
+ else
+ frag = "master";
+
+ add_url_alias(remote, strbuf_detach(&buf, NULL));
+ add_fetch_refspec(remote, xstrfmt("refs/heads/%s:refs/heads/%s",
+ frag, remote->name));
+
/*
* 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));
+ add_push_refspec(remote, xstrfmt("HEAD:refs/heads/%s", frag));
remote->fetch_tags = 1; /* always auto-follow */
}
static int handle_config(const char *key, const char *value, void *cb)
{
const char *name;
+ int namelen;
const char *subkey;
struct remote *remote;
struct branch *branch;
- if (!prefixcmp(key, "branch.")) {
- name = key + 7;
- subkey = strrchr(name, '.');
- if (!subkey)
+ if (parse_config_key(key, "branch", &name, &namelen, &subkey) >= 0) {
+ if (!name)
return 0;
- branch = make_branch(name, subkey - name);
- if (!strcmp(subkey, ".remote")) {
- if (!value)
- return config_error_nonbool(key);
- branch->remote_name = xstrdup(value);
- if (branch == current_branch)
- default_remote_name = branch->remote_name;
- } else if (!strcmp(subkey, ".merge")) {
+ branch = make_branch(name, namelen);
+ if (!strcmp(subkey, "remote")) {
+ return git_config_string(&branch->remote_name, key, value);
+ } else if (!strcmp(subkey, "pushremote")) {
+ return git_config_string(&branch->pushremote_name, key, value);
+ } else if (!strcmp(subkey, "merge")) {
if (!value)
return config_error_nonbool(key);
add_merge(branch, xstrdup(value));
}
return 0;
}
- if (!prefixcmp(key, "url.")) {
+ if (parse_config_key(key, "url", &name, &namelen, &subkey) >= 0) {
struct rewrite *rewrite;
- name = key + 4;
- subkey = strrchr(name, '.');
- if (!subkey)
+ if (!name)
return 0;
- rewrite = make_rewrite(name, subkey - name);
- if (!strcmp(subkey, ".insteadof")) {
+ if (!strcmp(subkey, "insteadof")) {
+ rewrite = make_rewrite(&rewrites, name, namelen);
+ if (!value)
+ return config_error_nonbool(key);
+ add_instead_of(rewrite, xstrdup(value));
+ } else if (!strcmp(subkey, "pushinsteadof")) {
+ rewrite = make_rewrite(&rewrites_push, name, namelen);
if (!value)
return config_error_nonbool(key);
add_instead_of(rewrite, xstrdup(value));
}
}
- if (prefixcmp(key, "remote."))
+
+ if (parse_config_key(key, "remote", &name, &namelen, &subkey) < 0)
return 0;
- name = key + 7;
+
+ /* Handle remote.* variables */
+ if (!name && !strcmp(subkey, "pushdefault"))
+ return git_config_string(&pushremote_name, key, value);
+
+ if (!name)
+ return 0;
+ /* Handle remote.<name>.* variables */
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);
- remote = make_remote(name, subkey - name);
+ remote = make_remote(name, namelen);
remote->origin = REMOTE_CONFIG;
- if (!strcmp(subkey, ".mirror"))
+ if (current_config_scope() == CONFIG_SCOPE_REPO)
+ remote->configured_in_repo = 1;
+ if (!strcmp(subkey, "mirror"))
remote->mirror = git_config_bool(key, value);
- else if (!strcmp(subkey, ".skipdefaultupdate"))
+ else if (!strcmp(subkey, "skipdefaultupdate"))
remote->skip_default_update = git_config_bool(key, value);
-
- else if (!strcmp(subkey, ".url")) {
+ else if (!strcmp(subkey, "skipfetchall"))
+ remote->skip_default_update = git_config_bool(key, value);
+ else if (!strcmp(subkey, "prune"))
+ remote->prune = 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, ".push")) {
+ } 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))
return -1;
add_push_refspec(remote, v);
- } else if (!strcmp(subkey, ".fetch")) {
+ } else if (!strcmp(subkey, "fetch")) {
const char *v;
if (git_config_string(&v, key, value))
return -1;
add_fetch_refspec(remote, v);
- } else if (!strcmp(subkey, ".receivepack")) {
+ } else if (!strcmp(subkey, "receivepack")) {
const char *v;
if (git_config_string(&v, key, value))
return -1;
@@ -393,7 +411,7 @@ static int handle_config(const char *key, const char *value, void *cb)
remote->receivepack = v;
else
error("more than one receivepack given, using the first");
- } else if (!strcmp(subkey, ".uploadpack")) {
+ } else if (!strcmp(subkey, "uploadpack")) {
const char *v;
if (git_config_string(&v, key, value))
return -1;
@@ -401,12 +419,19 @@ static int handle_config(const char *key, const char *value, void *cb)
remote->uploadpack = v;
else
error("more than one uploadpack given, using the first");
- } else if (!strcmp(subkey, ".tagopt")) {
+ } else if (!strcmp(subkey, "tagopt")) {
if (!strcmp(value, "--no-tags"))
remote->fetch_tags = -1;
- } else if (!strcmp(subkey, ".proxy")) {
+ 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, "proxyauthmethod")) {
+ return git_config_string((const char **)&remote->http_proxy_authmethod,
+ key, value);
+ } else if (!strcmp(subkey, "vcs")) {
+ return git_config_string(&remote->foreign_vcs, key, value);
}
return 0;
}
@@ -415,56 +440,44 @@ 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);
}
}
}
static void read_config(void)
{
- unsigned char sha1[20];
- const char *head_ref;
+ static int loaded;
+ struct object_id oid;
int flag;
- if (default_remote_name) // did this already
+
+ if (loaded)
return;
- default_remote_name = xstrdup("origin");
+ loaded = 1;
+
current_branch = NULL;
- head_ref = resolve_ref("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);
+ if (startup_info->have_repository) {
+ const char *head_ref = resolve_ref_unsafe("HEAD", 0, oid.hash, &flag);
+ if (head_ref && (flag & REF_ISSYMREF) &&
+ skip_prefix(head_ref, "refs/heads/", &head_ref)) {
+ current_branch = make_branch(head_ref, 0);
+ }
}
git_config(handle_config, NULL);
alias_all_urls();
}
/*
- * We need to make sure the tracking branches are well formed, but a
- * wildcard refspec in "struct refspec" must have a trailing slash. We
- * temporarily drop the trailing '/' while calling check_ref_format(),
- * and put it back. The caller knows that a CHECK_REF_FORMAT_ONELEVEL
- * error return is Ok for a wildcard refspec.
- */
-static int verify_refname(char *name, int is_glob)
-{
- int result, len = -1;
-
- if (is_glob) {
- len = strlen(name);
- assert(name[len - 1] == '/');
- name[len - 1] = '\0';
- }
- result = check_ref_format(name);
- if (is_glob)
- name[len - 1] = '/';
- 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
@@ -487,15 +500,15 @@ 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;
- int st;
- 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;
int is_glob;
const char *lhs, *rhs;
+ int flags;
- llen = is_glob = 0;
+ is_glob = 0;
lhs = refspec[i];
if (*lhs == '+') {
@@ -507,7 +520,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
/*
* Before going on, special case ":" (or "+:") as a refspec
- * for matching refs.
+ * for pushing matching refs.
*/
if (!fetch && rhs == lhs && rhs[1] == '\0') {
rs[i].matching = 1;
@@ -516,51 +529,44 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
if (rhs) {
size_t rlen = strlen(++rhs);
- is_glob = (2 <= rlen && !strcmp(rhs + rlen - 2, "/*"));
- rs[i].dst = xstrndup(rhs, rlen - is_glob);
+ 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--;
} 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) {
- /*
- * LHS
- * - empty is allowed; it means HEAD.
- * - otherwise it must be a valid looking ref.
- */
+ struct object_id unused;
+
+ /* LHS */
if (!*rs[i].src)
- ; /* empty is ok */
- else {
- st = verify_refname(rs[i].src, is_glob);
- if (st && st != CHECK_REF_FORMAT_ONELEVEL)
- 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) {
- ; /* ok */
- } else if (!*rs[i].dst) {
- ; /* ok */
- } else {
- st = verify_refname(rs[i].dst, is_glob);
- if (st && st != CHECK_REF_FORMAT_ONELEVEL)
- goto invalid;
- }
+ ; /* 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 {
/*
* LHS
@@ -572,8 +578,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
if (!*rs[i].src)
; /* empty is ok */
else if (is_glob) {
- st = verify_refname(rs[i].src, is_glob);
- if (st && st != CHECK_REF_FORMAT_ONELEVEL)
+ if (check_refname_format(rs[i].src, flags))
goto invalid;
}
else
@@ -586,14 +591,12 @@ 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 = verify_refname(rs[i].src, is_glob);
- 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 = verify_refname(rs[i].dst, is_glob);
- if (st && st != CHECK_REF_FORMAT_ONELEVEL)
+ if (check_refname_format(rs[i].dst, flags))
goto invalid;
}
}
@@ -615,10 +618,9 @@ 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);
+ refspec = parse_refspec_internal(1, &fetch_refspec_str, 1, 1);
free_refspecs(refspec, 1);
return !!refspec;
}
@@ -633,6 +635,16 @@ 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] || is_dot_or_dotdot(name))
@@ -640,29 +652,81 @@ static int valid_remote_nick(const char *name)
return !strchr(name, '/'); /* no slash */
}
-struct remote *remote_get(const char *name)
+const char *remote_for_branch(struct branch *branch, int *explicit)
+{
+ if (branch && branch->remote_name) {
+ if (explicit)
+ *explicit = 1;
+ return branch->remote_name;
+ }
+ if (explicit)
+ *explicit = 0;
+ return "origin";
+}
+
+const char *pushremote_for_branch(struct branch *branch, int *explicit)
+{
+ if (branch && branch->pushremote_name) {
+ if (explicit)
+ *explicit = 1;
+ return branch->pushremote_name;
+ }
+ if (pushremote_name) {
+ if (explicit)
+ *explicit = 1;
+ return pushremote_name;
+ }
+ return remote_for_branch(branch, explicit);
+}
+
+static struct remote *remote_get_1(const char *name,
+ const char *(*get_default)(struct branch *, int *))
{
struct remote *ret;
+ int name_given = 0;
read_config();
- if (!name)
- name = default_remote_name;
+
+ if (name)
+ name_given = 1;
+ else
+ name = get_default(current_branch, &name_given);
+
ret = make_remote(name, 0);
- if (valid_remote_nick(name)) {
- if (!ret->url)
+ if (valid_remote_nick(name) && have_git_dir()) {
+ 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;
}
+struct remote *remote_get(const char *name)
+{
+ return remote_get_1(name, remote_for_branch);
+}
+
+struct remote *pushremote_get(const char *name)
+{
+ return remote_get_1(name, pushremote_for_branch);
+}
+
+int remote_is_configured(struct remote *remote, int in_repo)
+{
+ if (!remote)
+ return 0;
+ if (in_repo)
+ return remote->configured_in_repo;
+ return !!remote->origin;
+}
+
int for_each_remote(each_remote_fn fn, void *priv)
{
int i, result = 0;
@@ -682,31 +746,66 @@ 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)
{
- struct ref **posn;
- struct ref *next;
- for (; ref_map; ref_map = 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;
+ 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 ref *retval = NULL;
+ struct ref **p = &retval;
+
+ while (ref_map) {
+ struct ref *ref = ref_map;
+
+ ref_map = ref_map->next;
+ ref->next = NULL;
+
+ 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 {
- posn = &(*posn)->next;
+ *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)
@@ -719,53 +818,115 @@ 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) {
+ struct strbuf sb = STRBUF_INIT;
+ const char *vstar = strchr(value, '*');
+ if (!vstar)
+ die("Value '%s' of pattern has no '*'", value);
+ strbuf_add(&sb, value, vstar - value);
+ strbuf_add(&sb, name + klen, namelen - klen - ksuffixlen);
+ strbuf_addstr(&sb, vstar + 1);
+ *result = strbuf_detach(&sb, NULL);
+ }
+ return ret;
+}
+
+static void query_refspecs_multiple(struct refspec *refs, int ref_count, struct refspec *query, struct string_list *results)
{
- int find_src = refspec->src == NULL;
- char *needle, **result;
int i;
+ int find_src = !query->src;
+
+ if (find_src && !query->dst)
+ error("query_refspecs_multiple: 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;
- 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;
+ 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 < 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)
+ 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 (fetch->pattern) {
- if (!prefixcmp(needle, 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;
}
+char *apply_refspecs(struct refspec *refspecs, int nr_refspec,
+ const char *name)
+{
+ 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;
+}
+
+int remote_find_tracking(struct remote *remote, struct refspec *refspec)
+{
+ return query_refspecs(remote->fetch, remote->fetch_refspec_nr, refspec);
+}
+
static struct ref *alloc_ref_with_prefix(const char *prefix, size_t prefixlen,
const char *name)
{
size_t len = strlen(name);
- struct ref *ref = xcalloc(1, sizeof(struct ref) + prefixlen + len + 1);
+ struct ref *ref = xcalloc(1, st_add4(sizeof(*ref), prefixlen, len, 1));
memcpy(ref->name, prefix, prefixlen);
memcpy(ref->name + prefixlen, name, len);
return ref;
@@ -776,12 +937,20 @@ struct ref *alloc_ref(const char *name)
return alloc_ref_with_prefix("", 0, name);
}
-static struct ref *copy_ref(const struct ref *ref)
+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 = st_add3(sizeof(struct ref), strlen(ref->name), 1);
+ cpy = xmalloc(len);
+ memcpy(cpy, ref, len);
+ cpy->next = NULL;
+ cpy->symref = xstrdup_or_null(ref->symref);
+ cpy->remote_status = xstrdup_or_null(ref->remote_status);
+ cpy->peer_ref = copy_ref(ref->peer_ref);
+ return cpy;
}
struct ref *copy_ref_list(const struct ref *ref)
@@ -800,6 +969,7 @@ static void free_ref(struct ref *ref)
{
if (!ref)
return;
+ free_ref(ref->peer_ref);
free(ref->remote_status);
free(ref->symref);
free(ref);
@@ -810,15 +980,35 @@ void free_refs(struct ref *ref)
struct ref *next;
while (ref) {
next = ref->next;
- free(ref->peer_ref);
free_ref(ref);
ref = next;
}
}
-static int count_refspec_match(const char *pattern,
- struct ref *refs,
- struct ref **matched_ref)
+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);
+}
+
+int count_refspec_match(const char *pattern,
+ struct ref *refs,
+ struct ref **matched_ref)
{
int patlen = strlen(pattern);
struct ref *matched_weak = NULL;
@@ -830,7 +1020,7 @@ 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
@@ -843,8 +1033,8 @@ 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
@@ -861,11 +1051,13 @@ 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;
}
}
@@ -878,21 +1070,32 @@ static void tail_link_ref(struct ref *ref, struct ref ***tail)
*tail = &ref->next;
}
-static struct ref *try_explicit_object_name(const char *name)
+static struct ref *alloc_delete_ref(void)
{
- unsigned char sha1[20];
- struct ref *ref;
+ struct ref *ref = alloc_ref("(delete)");
+ oidclr(&ref->new_oid);
+ return ref;
+}
+
+static int try_explicit_object_name(const char *name,
+ struct ref **match)
+{
+ struct object_id oid;
if (!*name) {
- ref = alloc_ref("(delete)");
- hashclr(ref->new_sha1);
- return ref;
+ 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;
+
+ if (get_sha1(name, oid.hash))
+ return -1;
+
+ if (match) {
+ *match = alloc_ref(name);
+ oidcpy(&(*match)->new_oid, &oid);
+ }
+ return 0;
}
static struct ref *make_linked_ref(const char *name, struct ref ***tail)
@@ -905,15 +1108,16 @@ static struct ref *make_linked_ref(const char *name, struct ref ***tail)
static char *guess_ref(const char *name, struct ref *peer)
{
struct strbuf buf = STRBUF_INIT;
- unsigned char sha1[20];
+ struct object_id oid;
- const char *r = resolve_ref(peer->name, sha1, 1, NULL);
+ const char *r = resolve_ref_unsafe(peer->name, RESOLVE_REF_READING,
+ oid.hash, NULL);
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;
@@ -922,11 +1126,37 @@ 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 allocated_src;
const char *dst_value = rs->dst;
char *dst_guess;
@@ -935,30 +1165,19 @@ 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:
- 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);
- 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];
+ struct object_id oid;
int flag;
- dst_value = resolve_ref(matched_src->name, sha1, 1, &flag);
+ dst_value = resolve_ref_unsafe(matched_src->name,
+ RESOLVE_REF_READING,
+ oid.hash, &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);
}
@@ -967,9 +1186,12 @@ 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((dst_guess = guess_ref(dst_value, matched_src)))
+ else if (is_null_oid(&matched_src->new_oid))
+ error("unable to delete '%s': remote ref does not exist",
+ dst_value);
+ 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"
@@ -991,7 +1213,9 @@ 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 = matched_src;
+ matched_dst->peer_ref = allocated_src ?
+ matched_src :
+ copy_ref(matched_src);
matched_dst->force = rs->force;
}
return 0;
@@ -1007,10 +1231,11 @@ 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++) {
@@ -1020,93 +1245,401 @@ static const struct refspec *check_pattern_match(const struct refspec *rs,
continue;
}
- if (rs[i].pattern && !prefixcmp(src->name, 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 && !starts_with(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;
+}
+
+struct tips {
+ struct commit **tip;
+ int nr, alloc;
+};
+
+static void add_to_tips(struct tips *tips, const struct object_id *oid)
+{
+ struct commit *commit;
+
+ if (is_null_oid(oid))
+ return;
+ commit = lookup_commit_reference_gently(oid->hash, 1);
+ if (!commit || (commit->object.flags & TMP_MARK))
+ return;
+ commit->object.flags |= TMP_MARK;
+ ALLOC_GROW(tips->tip, tips->nr + 1, tips->alloc);
+ tips->tip[tips->nr++] = commit;
+}
+
+static void add_missing_tags(struct ref *src, struct ref **dst, struct ref ***dst_tail)
+{
+ struct string_list dst_tag = STRING_LIST_INIT_NODUP;
+ struct string_list src_tag = STRING_LIST_INIT_NODUP;
+ struct string_list_item *item;
+ struct ref *ref;
+ struct tips sent_tips;
+
+ /*
+ * Collect everything we know they would have at the end of
+ * this push, and collect all tags they have.
+ */
+ memset(&sent_tips, 0, sizeof(sent_tips));
+ for (ref = *dst; ref; ref = ref->next) {
+ if (ref->peer_ref &&
+ !is_null_oid(&ref->peer_ref->new_oid))
+ add_to_tips(&sent_tips, &ref->peer_ref->new_oid);
+ else
+ add_to_tips(&sent_tips, &ref->old_oid);
+ 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);
+
+ string_list_sort(&dst_tag);
+
+ /* Collect tags they do not have. */
+ for (ref = src; ref; ref = ref->next) {
+ 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 */
+ if (sha1_object_info(ref->new_oid.hash, NULL) != OBJ_TAG)
+ continue; /* be conservative */
+ item = string_list_append(&src_tag, ref->name);
+ item->util = ref;
+ }
+ string_list_clear(&dst_tag, 0);
+
+ /*
+ * At this point, src_tag lists tags that are missing from
+ * dst, and sent_tips lists the tips we are pushing or those
+ * that we know they already have. An element in the src_tag
+ * that is an ancestor of any of the sent_tips needs to be
+ * sent to the other side.
+ */
+ if (sent_tips.nr) {
+ for_each_string_list_item(item, &src_tag) {
+ struct ref *ref = item->util;
+ struct ref *dst_ref;
+ struct commit *commit;
+
+ if (is_null_oid(&ref->new_oid))
+ continue;
+ commit = lookup_commit_reference_gently(ref->new_oid.hash, 1);
+ if (!commit)
+ /* not pushing a commit, which is not an error */
+ continue;
+
+ /*
+ * Is this tag, which they do not have, reachable from
+ * any of the commits we are sending?
+ */
+ if (!in_merge_bases_many(commit, sent_tips.nr, sent_tips.tip))
+ continue;
+
+ /* Add it in */
+ dst_ref = make_linked_ref(ref->name, dst_tail);
+ oidcpy(&dst_ref->new_oid, &ref->new_oid);
+ dst_ref->peer_ref = copy_ref(ref);
+ }
+ }
+ string_list_clear(&src_tag, 0);
+ free(sent_tips.tip);
+}
+
+struct ref *find_ref_by_name(const struct ref *list, const char *name)
+{
+ for ( ; list; list = list->next)
+ if (!strcmp(list->name, name))
+ return (struct ref *)list;
+ return NULL;
+}
+
+static void prepare_ref_index(struct string_list *ref_index, struct ref *ref)
+{
+ for ( ; ref; ref = ref->next)
+ string_list_append_nodup(ref_index, ref->name)->util = ref;
+
+ string_list_sort(ref_index);
+}
+
+/*
+ * 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;
}
/*
- * 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);
+ struct string_list dst_ref_index = STRING_LIST_INIT_NODUP;
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 string_list_item *dst_item;
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)
+ dst_name = get_ref_match(rs, nr_refspec, ref, send_mirror, FROM_SRC, &pat);
+ if (!dst_name)
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);
+ if (!dst_ref_index.nr)
+ prepare_ref_index(&dst_ref_index, *dst);
- } 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_item = string_list_lookup(&dst_ref_index, dst_name);
+ dst_peer = dst_item ? dst_item->util : NULL;
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))
/*
* 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;
/* 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);
+ oidcpy(&dst_peer->new_oid, &ref->new_oid);
+ string_list_insert(&dst_ref_index,
+ dst_peer->name)->util = dst_peer;
}
- dst_peer->peer_ref = src;
+ dst_peer->peer_ref = copy_ref(ref);
dst_peer->force = pat->force;
free_name:
free(dst_name);
}
+
+ string_list_clear(&dst_ref_index, 0);
+
+ if (flags & MATCH_REFS_FOLLOW_TAGS)
+ add_missing_tags(src, dst, &dst_tail);
+
+ if (send_prune) {
+ struct string_list src_ref_index = STRING_LIST_INIT_NODUP;
+ /* 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 (!src_ref_index.nr)
+ prepare_ref_index(&src_ref_index, src);
+ if (!string_list_has_string(&src_ref_index,
+ src_name))
+ ref->peer_ref = alloc_delete_ref();
+ free(src_name);
+ }
+ }
+ string_list_clear(&src_ref_index, 0);
+ }
+ 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) {
+ int force_ref_update = ref->force || force_update;
+ int reject_reason = 0;
+
+ if (ref->peer_ref)
+ oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
+ else if (!send_mirror)
+ continue;
+
+ ref->deletion = is_null_oid(&ref->new_oid);
+ if (!ref->deletion &&
+ !oidcmp(&ref->old_oid, &ref->new_oid)) {
+ ref->status = REF_STATUS_UPTODATE;
+ continue;
+ }
+
+ /*
+ * If the remote ref has moved and is now different
+ * from what we expect, reject any push.
+ *
+ * It also is an error if the user told us to check
+ * with the remote-tracking branch to find the value
+ * to expect, but we did not have such a tracking
+ * branch.
+ */
+ if (ref->expect_old_sha1) {
+ if (oidcmp(&ref->old_oid, &ref->old_oid_expect))
+ reject_reason = REF_STATUS_REJECT_STALE;
+ else
+ /* If the ref isn't stale then force the update. */
+ force_ref_update = 1;
+ }
+
+ /*
+ * If the update isn't already rejected then check
+ * the usual "must fast-forward" rules.
+ *
+ * Decide whether an individual refspec A:B can be
+ * pushed. The push will succeed if any of the
+ * following are true:
+ *
+ * (1) the remote reference B does not exist
+ *
+ * (2) the remote reference B is being removed (i.e.,
+ * pushing :B where no source is specified)
+ *
+ * (3) the destination is not under refs/tags/, and
+ * if the old and new value is a commit, the new
+ * is a descendant of the old.
+ *
+ * (4) it is forced using the +A:B notation, or by
+ * passing the --force argument
+ */
+
+ if (!reject_reason && !ref->deletion && !is_null_oid(&ref->old_oid)) {
+ if (starts_with(ref->name, "refs/tags/"))
+ reject_reason = REF_STATUS_REJECT_ALREADY_EXISTS;
+ else if (!has_object_file(&ref->old_oid))
+ reject_reason = REF_STATUS_REJECT_FETCH_FIRST;
+ else if (!lookup_commit_reference_gently(ref->old_oid.hash, 1) ||
+ !lookup_commit_reference_gently(ref->new_oid.hash, 1))
+ reject_reason = REF_STATUS_REJECT_NEEDS_FORCE;
+ else if (!ref_newer(&ref->new_oid, &ref->old_oid))
+ reject_reason = REF_STATUS_REJECT_NONFASTFORWARD;
+ }
+
+ /*
+ * "--force" will defeat any rejection implemented
+ * by the rules above.
+ */
+ if (!force_ref_update)
+ ref->status = reject_reason;
+ else if (reject_reason)
+ ref->forced_update = 1;
+ }
+}
+
+static void set_merge(struct branch *ret)
+{
+ struct remote *remote;
+ char *ref;
+ struct object_id oid;
+ int i;
+
+ if (!ret)
+ return; /* no branch */
+ if (ret->merge)
+ return; /* already run */
+ if (!ret->remote_name || !ret->merge_nr) {
+ /*
+ * no merge config; let's make sure we don't confuse callers
+ * with a non-zero merge_nr but a NULL merge
+ */
+ ret->merge_nr = 0;
+ return;
+ }
+
+ remote = remote_get(ret->remote_name);
+
+ ret->merge = xcalloc(ret->merge_nr, sizeof(*ret->merge));
+ 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]);
+ if (!remote_find_tracking(remote, ret->merge[i]) ||
+ strcmp(ret->remote_name, "."))
+ continue;
+ if (dwim_ref(ret->merge_name[i], strlen(ret->merge_name[i]),
+ oid.hash, &ref) == 1)
+ ret->merge[i]->dst = ref;
+ else
+ ret->merge[i]->dst = xstrdup(ret->merge_name[i]);
+ }
+}
+
struct branch *branch_get(const char *name)
{
struct branch *ret;
@@ -1116,20 +1649,7 @@ struct branch *branch_get(const char *name)
ret = current_branch;
else
ret = make_branch(name, 0);
- if (ret && ret->remote_name) {
- ret->remote = remote_get(ret->remote_name);
- if (ret->merge_nr) {
- int i;
- ret->merge = xcalloc(sizeof(*ret->merge),
- ret->merge_nr);
- 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]);
- }
- }
- }
+ set_merge(ret);
return ret;
}
@@ -1144,9 +1664,150 @@ 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);
+}
+
+__attribute__((format (printf,2,3)))
+static const char *error_buf(struct strbuf *err, const char *fmt, ...)
+{
+ if (err) {
+ va_list ap;
+ va_start(ap, fmt);
+ strbuf_vaddf(err, fmt, ap);
+ va_end(ap);
+ }
+ return NULL;
+}
+
+const char *branch_get_upstream(struct branch *branch, struct strbuf *err)
+{
+ if (!branch)
+ return error_buf(err, _("HEAD does not point to a branch"));
+
+ if (!branch->merge || !branch->merge[0]) {
+ /*
+ * no merge config; is it because the user didn't define any,
+ * or because it is not a real branch, and get_branch
+ * auto-vivified it?
+ */
+ if (!ref_exists(branch->refname))
+ return error_buf(err, _("no such branch: '%s'"),
+ branch->name);
+ return error_buf(err,
+ _("no upstream configured for branch '%s'"),
+ branch->name);
+ }
+
+ if (!branch->merge[0]->dst)
+ return error_buf(err,
+ _("upstream branch '%s' not stored as a remote-tracking branch"),
+ branch->merge[0]->src);
+
+ return branch->merge[0]->dst;
+}
+
+static const char *tracking_for_push_dest(struct remote *remote,
+ const char *refname,
+ struct strbuf *err)
+{
+ char *ret;
+
+ ret = apply_refspecs(remote->fetch, remote->fetch_refspec_nr, refname);
+ if (!ret)
+ return error_buf(err,
+ _("push destination '%s' on remote '%s' has no local tracking branch"),
+ refname, remote->name);
+ return ret;
}
+static const char *branch_get_push_1(struct branch *branch, struct strbuf *err)
+{
+ struct remote *remote;
+
+ remote = remote_get(pushremote_for_branch(branch, NULL));
+ if (!remote)
+ return error_buf(err,
+ _("branch '%s' has no remote for pushing"),
+ branch->name);
+
+ if (remote->push_refspec_nr) {
+ char *dst;
+ const char *ret;
+
+ dst = apply_refspecs(remote->push, remote->push_refspec_nr,
+ branch->refname);
+ if (!dst)
+ return error_buf(err,
+ _("push refspecs for '%s' do not include '%s'"),
+ remote->name, branch->name);
+
+ ret = tracking_for_push_dest(remote, dst, err);
+ free(dst);
+ return ret;
+ }
+
+ if (remote->mirror)
+ return tracking_for_push_dest(remote, branch->refname, err);
+
+ switch (push_default) {
+ case PUSH_DEFAULT_NOTHING:
+ return error_buf(err, _("push has no destination (push.default is 'nothing')"));
+
+ case PUSH_DEFAULT_MATCHING:
+ case PUSH_DEFAULT_CURRENT:
+ return tracking_for_push_dest(remote, branch->refname, err);
+
+ case PUSH_DEFAULT_UPSTREAM:
+ return branch_get_upstream(branch, err);
+
+ case PUSH_DEFAULT_UNSPECIFIED:
+ case PUSH_DEFAULT_SIMPLE:
+ {
+ const char *up, *cur;
+
+ up = branch_get_upstream(branch, err);
+ if (!up)
+ return NULL;
+ cur = tracking_for_push_dest(remote, branch->refname, err);
+ if (!cur)
+ return NULL;
+ if (strcmp(cur, up))
+ return error_buf(err,
+ _("cannot resolve 'simple' push to a single destination"));
+ return cur;
+ }
+ }
+
+ die("BUG: unhandled push situation");
+}
+
+const char *branch_get_push(struct branch *branch, struct strbuf *err)
+{
+ if (!branch)
+ return error_buf(err, _("HEAD does not point to a branch"));
+
+ if (!branch->push_tracking_ref)
+ branch->push_tracking_ref = branch_get_push_1(branch, err);
+ return branch->push_tracking_ref;
+}
+
+static int ignore_symref_update(const char *refname)
+{
+ struct object_id oid;
+ int flag;
+
+ if (!resolve_ref_unsafe(refname, 0, oid.hash, &flag))
+ return 0; /* non-existing refs are OK */
+ 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)
{
@@ -1154,24 +1815,23 @@ 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);
-
for (ref = remote_refs; ref; ref = ref->next) {
+ char *expn_name = NULL;
+
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) &&
+ !ignore_symref_update(expn_name)) {
struct ref *cpy = copy_ref(ref);
- match = ref->name + remote_prefix_len;
- cpy->peer_ref = alloc_ref_with_prefix(refspec->dst,
- local_prefix_len, match);
+ cpy->peer_ref = alloc_ref(expn_name);
if (refspec->force)
cpy->peer_ref->force = 1;
*tail = cpy;
tail = &cpy->next;
}
+ free(expn_name);
}
return ret;
@@ -1181,7 +1841,7 @@ 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;
@@ -1199,15 +1859,15 @@ struct ref *get_remote_ref(const struct ref *remote_refs, const char *name)
static struct ref *get_local_ref(const char *name)
{
- if (!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);
@@ -1225,7 +1885,12 @@ int get_fetch_map(const struct ref *remote_refs,
} else {
const char *name = refspec->src[0] ? refspec->src : "HEAD";
- ref_map = get_remote_ref(remote_refs, name);
+ if (refspec->exact_sha1) {
+ ref_map = alloc_ref(name);
+ get_oid_hex(name, &ref_map->old_oid);
+ } else {
+ ref_map = get_remote_ref(remote_refs, name);
+ }
if (!missing_ok && !ref_map)
die("Couldn't find remote ref %s", name);
if (ref_map) {
@@ -1237,8 +1902,8 @@ 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 (!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",
(*rmp)->peer_ref->name);
@@ -1263,68 +1928,115 @@ int resolve_remote_symref(struct ref *ref, struct ref *list)
return 0;
for (; list; list = list->next)
if (!strcmp(ref->symref, list->name)) {
- hashcpy(ref->old_sha1, list->old_sha1);
+ oidcpy(&ref->old_oid, &list->old_oid);
return 0;
}
return 1;
}
-/*
- * Return true if there is anything to report, otherwise false.
- */
-int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs)
+static void unmark_and_free(struct commit_list *list, unsigned int mark)
{
- unsigned char sha1[20];
- struct commit *ours, *theirs;
- char symmetric[84];
- struct rev_info revs;
- const char *rev_argv[10], *base;
- int rev_argc;
+ while (list) {
+ struct commit *commit = pop_commit(&list);
+ commit->object.flags &= ~mark;
+ }
+}
- /*
- * 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;
+int ref_newer(const struct object_id *new_oid, const struct object_id *old_oid)
+{
+ struct object *o;
+ struct commit *old, *new;
+ struct commit_list *list, *used;
+ int found = 0;
/*
- * If what we used to build on no longer exists, there is
- * nothing to report.
+ * Both new and old must be commit-ish and new is descendant of
+ * old. Otherwise we require --force.
*/
- base = branch->merge[0]->dst;
- if (!resolve_ref(base, sha1, 1, NULL))
+ o = deref_tag(parse_object(old_oid->hash), NULL, 0);
+ if (!o || o->type != OBJ_COMMIT)
return 0;
- theirs = lookup_commit(sha1);
- if (!theirs)
+ old = (struct commit *) o;
+
+ o = deref_tag(parse_object(new_oid->hash), NULL, 0);
+ if (!o || o->type != OBJ_COMMIT)
return 0;
+ new = (struct commit *) o;
- if (!resolve_ref(branch->refname, sha1, 1, NULL))
+ if (parse_commit(new) < 0)
return 0;
- ours = lookup_commit(sha1);
+
+ 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;
+}
+
+/*
+ * Compare a branch with its upstream, and save their differences (number
+ * of commits) in *num_ours and *num_theirs. The name of the upstream branch
+ * (or NULL if no upstream is defined) is returned via *upstream_name, if it
+ * is not itself NULL.
+ *
+ * Returns -1 if num_ours and num_theirs could not be filled in (e.g., no
+ * upstream defined, or ref does not exist), 0 otherwise.
+ */
+int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs,
+ const char **upstream_name)
+{
+ struct object_id oid;
+ struct commit *ours, *theirs;
+ struct rev_info revs;
+ const char *base;
+ struct argv_array argv = ARGV_ARRAY_INIT;
+
+ /* Cannot stat unless we are marked to build on top of somebody else. */
+ base = branch_get_upstream(branch, NULL);
+ if (upstream_name)
+ *upstream_name = base;
+ if (!base)
+ return -1;
+
+ /* Cannot stat if what we used to build on no longer exists */
+ if (read_ref(base, oid.hash))
+ return -1;
+ theirs = lookup_commit_reference(oid.hash);
+ if (!theirs)
+ return -1;
+
+ if (read_ref(branch->refname, oid.hash))
+ return -1;
+ ours = lookup_commit_reference(oid.hash);
if (!ours)
- return 0;
+ return -1;
/* are we the same? */
- if (theirs == ours)
+ if (theirs == ours) {
+ *num_theirs = *num_ours = 0;
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));
+ argv_array_push(&argv, ""); /* ignored */
+ argv_array_push(&argv, "--left-right");
+ argv_array_pushf(&argv, "%s...%s",
+ oid_to_hex(&ours->object.oid),
+ oid_to_hex(&theirs->object.oid));
+ argv_array_push(&argv, "--");
init_revisions(&revs, NULL);
- setup_revisions(rev_argc, rev_argv, &revs, NULL);
- prepare_revision_walk(&revs);
+ setup_revisions(argv.argc, argv.argv, &revs, NULL);
+ if (prepare_revision_walk(&revs))
+ die("revision walk setup failed");
/* ... and count the commits on each side. */
*num_ours = 0;
@@ -1342,7 +2054,9 @@ int stat_tracking_info(struct branch *branch, int *num_ours, int *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;
+
+ argv_array_clear(&argv);
+ return 0;
}
/*
@@ -1350,29 +2064,312 @@ int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs)
*/
int format_tracking_info(struct branch *branch, struct strbuf *sb)
{
- int num_ours, num_theirs;
- const char *base;
+ int ours, theirs;
+ const char *full_base;
+ char *base;
+ int upstream_is_gone = 0;
- if (!stat_tracking_info(branch, &num_ours, &num_theirs))
- return 0;
+ if (stat_tracking_info(branch, &ours, &theirs, &full_base) < 0) {
+ if (!full_base)
+ return 0;
+ upstream_is_gone = 1;
+ }
- base = branch->merge[0]->dst;
- if (!prefixcmp(base, "refs/remotes/")) {
- base += strlen("refs/remotes/");
- }
- if (!num_theirs)
- strbuf_addf(sb, "Your branch is ahead of '%s' "
- "by %d commit%s.\n",
- base, num_ours, (num_ours == 1) ? "" : "s");
- else if (!num_ours)
- strbuf_addf(sb, "Your branch is behind '%s' "
- "by %d commit%s, "
- "and can be fast-forwarded.\n",
- base, num_theirs, (num_theirs == 1) ? "" : "s");
- else
- strbuf_addf(sb, "Your branch and '%s' have diverged,\n"
- "and have %d and %d different commit(s) each, "
- "respectively.\n",
- base, num_ours, num_theirs);
+ base = shorten_unambiguous_ref(full_base, 0);
+ if (upstream_is_gone) {
+ strbuf_addf(sb,
+ _("Your branch is based on '%s', but the upstream is gone.\n"),
+ base);
+ if (advice_status_hints)
+ strbuf_addstr(sb,
+ _(" (use \"git branch --unset-upstream\" to fixup)\n"));
+ } else if (!ours && !theirs) {
+ strbuf_addf(sb,
+ _("Your branch is up-to-date with '%s'.\n"),
+ base);
+ } else if (!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",
+ ours),
+ base, ours);
+ if (advice_status_hints)
+ strbuf_addstr(sb,
+ _(" (use \"git push\" to publish your local commits)\n"));
+ } else if (!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",
+ theirs),
+ base, theirs);
+ if (advice_status_hints)
+ strbuf_addstr(sb,
+ _(" (use \"git pull\" to update your local branch)\n"));
+ } 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",
+ ours + theirs),
+ base, ours, theirs);
+ if (advice_status_hints)
+ strbuf_addstr(sb,
+ _(" (use \"git pull\" to merge the remote branch into yours)\n"));
+ }
+ free(base);
return 1;
}
+
+static int one_local_ref(const char *refname, const struct object_id *oid,
+ int flag, void *cb_data)
+{
+ struct ref ***local_tail = cb_data;
+ struct ref *ref;
+
+ /* we already know it starts with refs/ to get here */
+ if (check_refname_format(refname + 5, 0))
+ return 0;
+
+ ref = alloc_ref(refname);
+ oidcpy(&ref->new_oid, oid);
+ **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 && !oidcmp(&r->old_oid, &head->old_oid))
+ return copy_ref(r);
+ }
+
+ /* Look for another ref that points there */
+ for (r = refs; r; r = r->next) {
+ if (r != head &&
+ starts_with(r->name, "refs/heads/") &&
+ !oidcmp(&r->old_oid, &head->old_oid)) {
+ *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 struct object_id *oid,
+ 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;
+
+ 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. In order to deal with
+ * overlapping refspecs, we need to go over all of the
+ * matching refs.
+ */
+ 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);
+ oidcpy(&ref->new_oid, oid);
+ }
+
+clean_exit:
+ string_list_clear(&matches, 0);
+ 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);
+ string_list_sort(&ref_names);
+ for_each_ref(get_stale_heads_cb, &info);
+ string_list_clear(&ref_names, 0);
+ return stale_refs;
+}
+
+/*
+ * Compare-and-swap
+ */
+static void clear_cas_option(struct push_cas_option *cas)
+{
+ int i;
+
+ for (i = 0; i < cas->nr; i++)
+ free(cas->entry[i].refname);
+ free(cas->entry);
+ memset(cas, 0, sizeof(*cas));
+}
+
+static struct push_cas *add_cas_entry(struct push_cas_option *cas,
+ const char *refname,
+ size_t refnamelen)
+{
+ struct push_cas *entry;
+ ALLOC_GROW(cas->entry, cas->nr + 1, cas->alloc);
+ entry = &cas->entry[cas->nr++];
+ memset(entry, 0, sizeof(*entry));
+ entry->refname = xmemdupz(refname, refnamelen);
+ return entry;
+}
+
+static int parse_push_cas_option(struct push_cas_option *cas, const char *arg, int unset)
+{
+ const char *colon;
+ struct push_cas *entry;
+
+ if (unset) {
+ /* "--no-<option>" */
+ clear_cas_option(cas);
+ return 0;
+ }
+
+ if (!arg) {
+ /* just "--<option>" */
+ cas->use_tracking_for_rest = 1;
+ return 0;
+ }
+
+ /* "--<option>=refname" or "--<option>=refname:value" */
+ colon = strchrnul(arg, ':');
+ entry = add_cas_entry(cas, arg, colon - arg);
+ if (!*colon)
+ entry->use_tracking = 1;
+ else if (!colon[1])
+ hashclr(entry->expect);
+ else if (get_sha1(colon + 1, entry->expect))
+ return error("cannot parse expected object name '%s'", colon + 1);
+ return 0;
+}
+
+int parseopt_push_cas_option(const struct option *opt, const char *arg, int unset)
+{
+ return parse_push_cas_option(opt->value, arg, unset);
+}
+
+int is_empty_cas(const struct push_cas_option *cas)
+{
+ return !cas->use_tracking_for_rest && !cas->nr;
+}
+
+/*
+ * Look at remote.fetch refspec and see if we have a remote
+ * tracking branch for the refname there. Fill its current
+ * value in sha1[].
+ * If we cannot do so, return negative to signal an error.
+ */
+static int remote_tracking(struct remote *remote, const char *refname,
+ struct object_id *oid)
+{
+ char *dst;
+
+ dst = apply_refspecs(remote->fetch, remote->fetch_refspec_nr, refname);
+ if (!dst)
+ return -1; /* no tracking ref for refname at remote */
+ if (read_ref(dst, oid->hash))
+ return -1; /* we know what the tracking ref is but we cannot read it */
+ return 0;
+}
+
+static void apply_cas(struct push_cas_option *cas,
+ struct remote *remote,
+ struct ref *ref)
+{
+ int i;
+
+ /* 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))
+ continue;
+ ref->expect_old_sha1 = 1;
+ if (!entry->use_tracking)
+ hashcpy(ref->old_oid_expect.hash, cas->entry[i].expect);
+ else if (remote_tracking(remote, ref->name, &ref->old_oid_expect))
+ oidclr(&ref->old_oid_expect);
+ return;
+ }
+
+ /* Are we using "--<option>" to cover all? */
+ if (!cas->use_tracking_for_rest)
+ return;
+
+ ref->expect_old_sha1 = 1;
+ if (remote_tracking(remote, ref->name, &ref->old_oid_expect))
+ oidclr(&ref->old_oid_expect);
+}
+
+void apply_push_cas(struct push_cas_option *cas,
+ struct remote *remote,
+ struct ref *remote_refs)
+{
+ struct ref *ref;
+ for (ref = remote_refs; ref; ref = ref->next)
+ apply_cas(cas, remote, ref);
+}