#include "cache.h"
+#include "config.h"
#include "remote.h"
#include "refs.h"
+#include "refspec.h"
+#include "object-store.h"
#include "commit.h"
#include "diff.h"
#include "revision.h"
#include "dir.h"
#include "tag.h"
#include "string-list.h"
+#include "mergesort.h"
+#include "argv-array.h"
+#include "commit-reach.h"
+#include "advice.h"
enum map_direction { FROM_SRC, FROM_DST };
-static struct refspec s_tag_refspec = {
- 0,
- 1,
- 0,
- "refs/tags/*",
- "refs/tags/*"
-};
-
-const struct refspec *tag_refspec = &s_tag_refspec;
-
struct counted_string {
size_t len;
const char *s;
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 int explicit_default_remote_name;
+static const char *pushremote_name;
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, struct rewrites *r)
{
int i, j;
- char *ret;
struct counted_string *longest;
int longest_i;
if (!r->rewrite[i])
continue;
for (j = 0; j < r->rewrite[i]->instead_of_nr; j++) {
- if (!prefixcmp(url, r->rewrite[i]->instead_of[j].s) &&
+ if (starts_with(url, r->rewrite[i]->instead_of[j].s) &&
(!longest ||
longest->len < r->rewrite[i]->instead_of[j].len)) {
longest = &(r->rewrite[i]->instead_of[j]);
if (!longest)
return url;
- ret = xmalloc(r->rewrite[longest_i]->baselen +
- (strlen(url) - longest->len) + 1);
- strcpy(ret, r->rewrite[longest_i]->base);
- strcpy(ret + r->rewrite[longest_i]->baselen, url + longest->len);
- return ret;
-}
-
-static void add_push_refspec(struct remote *remote, const char *ref)
-{
- ALLOC_GROW(remote->push_refspec,
- remote->push_refspec_nr + 1,
- remote->push_refspec_alloc);
- remote->push_refspec[remote->push_refspec_nr++] = ref;
-}
-
-static void add_fetch_refspec(struct remote *remote, const char *ref)
-{
- ALLOC_GROW(remote->fetch_refspec,
- remote->fetch_refspec_nr + 1,
- remote->fetch_refspec_alloc);
- remote->fetch_refspec[remote->fetch_refspec_nr++] = ref;
+ return xstrfmt("%s%s", r->rewrite[longest_i]->base, url + longest->len);
}
static void add_url(struct remote *remote, const char *url)
add_pushurl_alias(remote, url);
}
+struct remotes_hash_key {
+ const char *str;
+ int len;
+};
+
+static int remotes_hash_cmp(const void *unused_cmp_data,
+ const struct hashmap_entry *eptr,
+ const struct hashmap_entry *entry_or_key,
+ const void *keydata)
+{
+ const struct remote *a, *b;
+ const struct remotes_hash_key *key = keydata;
+
+ a = container_of(eptr, const struct remote, ent);
+ b = container_of(entry_or_key, const struct remote, ent);
+
+ 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, remotes_hash_cmp, NULL, 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, *e;
- 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));
+
+ e = hashmap_get(&remotes_hash, &lookup_entry, &lookup);
+ if (e)
+ return container_of(e, struct remote, ent);
ret = xcalloc(1, sizeof(struct remote));
+ ret->prune = -1; /* unspecified */
+ ret->prune_tags = -1; /* unspecified */
+ ret->name = xstrndup(name, len);
+ refspec_init(&ret->push, REFSPEC_PUSH);
+ refspec_init(&ret->fetch, REFSPEC_FETCH);
+
ALLOC_GROW(remotes, remotes_nr + 1, remotes_alloc);
remotes[remotes_nr++] = ret;
- if (len)
- ret->name = xstrndup(name, len);
- else
- ret->name = xstrdup(name);
+
+ hashmap_entry_init(&ret->ent, lookup_entry.hash);
+ replaced = hashmap_put_entry(&remotes_hash, ret, ent);
+ assert(replaced == NULL); /* no previous entry overwritten */
return ret;
}
branch->merge_name[branch->merge_nr++] = name;
}
-static struct branch *make_branch(const char *name, int len)
+static struct branch *make_branch(const char *name, size_t len)
{
struct branch *ret;
int i;
- char *refname;
for (i = 0; i < branches_nr; i++) {
- if (len ? (!strncmp(name, branches[i]->name, len) &&
- !branches[i]->name[len]) :
- !strcmp(name, branches[i]->name))
+ if (!strncmp(name, branches[i]->name, len) &&
+ !branches[i]->name[len])
return branches[i];
}
ALLOC_GROW(branches, branches_nr + 1, branches_alloc);
ret = xcalloc(1, sizeof(struct branch));
branches[branches_nr++] = ret;
- if (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->name = xstrndup(name, len);
+ ret->refname = xstrfmt("refs/heads/%s", ret->name);
return ret;
}
-static struct rewrite *make_rewrite(struct rewrites *r, const char *base, int len)
+static struct rewrite *make_rewrite(struct rewrites *r,
+ const char *base, size_t len)
{
struct rewrite *ret;
int i;
for (i = 0; i < r->rewrite_nr; i++) {
- if (len
- ? (len == r->rewrite[i]->baselen &&
- !strncmp(base, r->rewrite[i]->base, len))
- : !strcmp(base, r->rewrite[i]->base))
+ if (len == r->rewrite[i]->baselen &&
+ !strncmp(base, r->rewrite[i]->base, len))
return r->rewrite[i];
}
ALLOC_GROW(r->rewrite, r->rewrite_nr + 1, r->rewrite_alloc);
ret = xcalloc(1, sizeof(struct rewrite));
r->rewrite[r->rewrite_nr++] = ret;
- if (len) {
- ret->base = xstrndup(base, len);
- ret->baselen = len;
- }
- else {
- ret->base = xstrdup(base);
- ret->baselen = strlen(base);
- }
+ ret->base = xstrndup(base, len);
+ ret->baselen = len;
return ret;
}
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)
{
- FILE *f = fopen(git_path("remotes/%s", remote->name), "r");
+ struct strbuf buf = STRBUF_INIT;
+ FILE *f = fopen_or_warn(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))
+ refspec_append(&remote->push, skip_spaces(v));
+ else if (skip_prefix(buf.buf, "Pull:", &v))
+ refspec_append(&remote->fetch, 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_or_warn(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
- * #branch specified. The "master" (or specified) branch is
- * fetched and stored in the local branch of the same name.
+ * The branches file would have URL and optionally
+ * #branch specified. The default (or specified) branch is
+ * 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, NULL));
+ else
+ frag = (char *)git_default_branch_name();
+
+ add_url_alias(remote, strbuf_detach(&buf, NULL));
+ strbuf_addf(&buf, "refs/heads/%s:refs/heads/%s",
+ frag, remote->name);
+ refspec_append(&remote->fetch, buf.buf);
+
/*
* 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));
+ strbuf_reset(&buf);
+ strbuf_addf(&buf, "HEAD:refs/heads/%s", frag);
+ refspec_append(&remote->push, buf.buf);
remote->fetch_tags = 1; /* always auto-follow */
+ strbuf_release(&buf);
}
static int handle_config(const char *key, const char *value, void *cb)
{
const char *name;
+ size_t 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;
- explicit_default_remote_name = 1;
- }
- } 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;
- if (!strcmp(subkey, ".insteadof")) {
- rewrite = make_rewrite(&rewrites, name, subkey - name);
+ if (!strcmp(subkey, "insteadof")) {
if (!value)
return config_error_nonbool(key);
+ rewrite = make_rewrite(&rewrites, name, namelen);
add_instead_of(rewrite, xstrdup(value));
- } else if (!strcmp(subkey, ".pushinsteadof")) {
- rewrite = make_rewrite(&rewrites_push, name, subkey - name);
+ } else if (!strcmp(subkey, "pushinsteadof")) {
if (!value)
return config_error_nonbool(key);
+ rewrite = make_rewrite(&rewrites_push, name, namelen);
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",
+ warning(_("config remote shorthand cannot begin with '/': %s"),
name);
return 0;
}
- subkey = strrchr(name, '.');
- if (!subkey)
- return 0;
- 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_LOCAL ||
+ current_config_scope() == CONFIG_SCOPE_WORKTREE)
+ 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, ".skipfetchall"))
+ else if (!strcmp(subkey, "skipfetchall"))
remote->skip_default_update = git_config_bool(key, value);
- else if (!strcmp(subkey, ".url")) {
+ else if (!strcmp(subkey, "prune"))
+ remote->prune = git_config_bool(key, value);
+ else if (!strcmp(subkey, "prunetags"))
+ remote->prune_tags = 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")) {
+ } 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")) {
+ } 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")) {
+ refspec_append(&remote->push, v);
+ free((char *)v);
+ } 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")) {
+ refspec_append(&remote->fetch, v);
+ free((char *)v);
+ } else if (!strcmp(subkey, "receivepack")) {
const char *v;
if (git_config_string(&v, key, value))
return -1;
if (!remote->receivepack)
remote->receivepack = v;
else
- error("more than one receivepack given, using the first");
- } else if (!strcmp(subkey, ".uploadpack")) {
+ error(_("more than one receivepack given, using the first"));
+ } else if (!strcmp(subkey, "uploadpack")) {
const char *v;
if (git_config_string(&v, key, value))
return -1;
if (!remote->uploadpack)
remote->uploadpack = v;
else
- error("more than one uploadpack given, using the first");
- } else if (!strcmp(subkey, ".tagopt")) {
+ error(_("more than one uploadpack given, using the first"));
+ } 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")) {
+ } else if (!strcmp(subkey, "proxy")) {
return git_config_string((const char **)&remote->http_proxy,
key, value);
- } else if (!strcmp(subkey, ".vcs")) {
+ } 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;
static void read_config(void)
{
- unsigned char sha1[20];
- const char *head_ref;
+ static int loaded;
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_unsafe("HEAD", sha1, 0, &flag);
- if (head_ref && (flag & REF_ISSYMREF) &&
- !prefixcmp(head_ref, "refs/heads/")) {
- current_branch =
- make_branch(head_ref + strlen("refs/heads/"), 0);
+ if (startup_info->have_repository) {
+ const char *head_ref = resolve_ref_unsafe("HEAD", 0, NULL, &flag);
+ if (head_ref && (flag & REF_ISSYMREF) &&
+ skip_prefix(head_ref, "refs/heads/", &head_ref)) {
+ current_branch = make_branch(head_ref, strlen(head_ref));
+ }
}
git_config(handle_config, NULL);
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)
+static int valid_remote_nick(const char *name)
{
- int i;
-
- if (!refspec)
- return;
+ if (!name[0] || is_dot_or_dotdot(name))
+ return 0;
- for (i = 0; i < nr_refspec; i++) {
- free(refspec[i].src);
- free(refspec[i].dst);
- }
- free(refspec);
+ /* remote nicknames cannot contain slashes */
+ while (*name)
+ if (is_dir_sep(*name++))
+ return 0;
+ return 1;
}
-static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify)
+const char *remote_for_branch(struct branch *branch, int *explicit)
{
- int i;
- struct refspec *rs = xcalloc(sizeof(*rs), nr_refspec);
-
- for (i = 0; i < nr_refspec; i++) {
- size_t llen;
- int is_glob;
- const char *lhs, *rhs;
- int flags;
-
- is_glob = 0;
-
- lhs = refspec[i];
- if (*lhs == '+') {
- rs[i].force = 1;
- lhs++;
- }
-
- rhs = strrchr(lhs, ':');
-
- /*
- * Before going on, special case ":" (or "+:") as a refspec
- * for matching refs.
- */
- if (!fetch && rhs == lhs && rhs[1] == '\0') {
- rs[i].matching = 1;
- continue;
- }
-
- if (rhs) {
- 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 (1 <= llen && memchr(lhs, '*', llen)) {
- if ((rhs && !is_glob) || (!rhs && fetch))
- goto invalid;
- is_glob = 1;
- } 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.
- */
- if (!*rs[i].src)
- ; /* empty is ok */
- 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)
- ; /* ok */
- else if (!*rs[i].dst)
- ; /* ok */
- else if (check_refname_format(rs[i].dst, flags))
- goto invalid;
- } else {
- /*
- * LHS
- * - empty is allowed; it means delete.
- * - when wildcarded, it must be a valid looking ref.
- * - otherwise, it must be an extended SHA-1, but
- * there is no existing way to validate this.
- */
- if (!*rs[i].src)
- ; /* empty is ok */
- else if (is_glob) {
- if (check_refname_format(rs[i].src, flags))
- goto invalid;
- }
- else
- ; /* anything goes, for now */
- /*
- * RHS
- * - missing is allowed, but LHS then must be a
- * valid looking ref.
- * - empty is not allowed.
- * - otherwise it must be a valid looking ref.
- */
- if (!rs[i].dst) {
- if (check_refname_format(rs[i].src, flags))
- goto invalid;
- } else if (!*rs[i].dst) {
- goto invalid;
- } else {
- if (check_refname_format(rs[i].dst, flags))
- goto invalid;
- }
- }
- }
- return rs;
-
- invalid:
- if (verify) {
- /*
- * 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;
+ if (branch && branch->remote_name) {
+ if (explicit)
+ *explicit = 1;
+ return branch->remote_name;
}
- die("Invalid refspec '%s'", refspec[i]);
-}
-
-int valid_fetch_refspec(const char *fetch_refspec_str)
-{
- struct refspec *refspec;
-
- refspec = parse_refspec_internal(1, &fetch_refspec_str, 1, 1);
- free_refspecs(refspec, 1);
- return !!refspec;
-}
-
-struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec)
-{
- return parse_refspec_internal(nr_refspec, refspec, 1, 0);
-}
-
-static struct refspec *parse_push_refspec(int nr_refspec, const char **refspec)
-{
- return parse_refspec_internal(nr_refspec, refspec, 0, 0);
+ if (explicit)
+ *explicit = 0;
+ return "origin";
}
-void free_refspec(int nr_refspec, struct refspec *refspec)
+const char *pushremote_for_branch(struct branch *branch, int *explicit)
{
- int i;
- for (i = 0; i < nr_refspec; i++) {
- free(refspec[i].src);
- free(refspec[i].dst);
+ if (branch && branch->pushremote_name) {
+ if (explicit)
+ *explicit = 1;
+ return branch->pushremote_name;
}
- free(refspec);
+ if (pushremote_name) {
+ if (explicit)
+ *explicit = 1;
+ return pushremote_name;
+ }
+ return remote_for_branch(branch, explicit);
}
-static int valid_remote_nick(const char *name)
+const char *remote_ref_for_branch(struct branch *branch, int for_push)
{
- if (!name[0] || is_dot_or_dotdot(name))
- return 0;
- return !strchr(name, '/'); /* no slash */
+ if (branch) {
+ if (!for_push) {
+ if (branch->merge_nr) {
+ return branch->merge_name[0];
+ }
+ } else {
+ const char *dst, *remote_name =
+ pushremote_for_branch(branch, NULL);
+ struct remote *remote = remote_get(remote_name);
+
+ if (remote && remote->push.nr &&
+ (dst = apply_refspecs(&remote->push,
+ branch->refname))) {
+ return dst;
+ }
+ }
+ }
+ return NULL;
}
-struct remote *remote_get(const char *name)
+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_given = 1;
- else {
- name = default_remote_name;
- name_given = explicit_default_remote_name;
- }
+ else
+ name = get_default(current_branch, &name_given);
ret = make_remote(name, 0);
- if (valid_remote_nick(name)) {
+ if (valid_remote_nick(name) && have_git_dir()) {
if (!valid_remote(ret))
read_remotes_file(ret);
if (!valid_remote(ret))
add_url_alias(ret, name);
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)
+struct remote *remote_get(const char *name)
{
- int i;
- read_config();
+ return remote_get_1(name, remote_for_branch);
+}
- for (i = 0; i < remotes_nr; i++)
- if (!strcmp(name, remotes[i]->name))
- return 1;
- return 0;
+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)
struct remote *r = remotes[i];
if (!r)
continue;
- if (!r->fetch)
- r->fetch = parse_fetch_refspec(r->fetch_refspec_nr,
- r->fetch_refspec);
- if (!r->push)
- r->push = parse_push_refspec(r->push_refspec_nr,
- r->push_refspec);
result = fn(r, priv);
}
return result;
}
-void ref_remove_duplicates(struct ref *ref_map)
+static void handle_duplicate(struct ref *ref1, struct ref *ref2)
+{
+ if (strcmp(ref1->name, ref2->name)) {
+ if (ref1->fetch_head_status != FETCH_HEAD_IGNORE &&
+ ref2->fetch_head_status != FETCH_HEAD_IGNORE) {
+ die(_("Cannot fetch both %s and %s to %s"),
+ ref1->name, ref2->name, ref2->peer_ref->name);
+ } else if (ref1->fetch_head_status != FETCH_HEAD_IGNORE &&
+ ref2->fetch_head_status == FETCH_HEAD_IGNORE) {
+ warning(_("%s usually tracks %s, not %s"),
+ ref2->peer_ref->name, ref2->name, ref1->name);
+ } else if (ref1->fetch_head_status == FETCH_HEAD_IGNORE &&
+ ref2->fetch_head_status == FETCH_HEAD_IGNORE) {
+ die(_("%s tracks both %s and %s"),
+ ref2->peer_ref->name, ref1->name, ref2->name);
+ } else {
+ /*
+ * This last possibility doesn't occur because
+ * FETCH_HEAD_IGNORE entries always appear at
+ * the end of the list.
+ */
+ BUG("Internal error");
+ }
+ }
+ free(ref2->peer_ref);
+ free(ref2);
+}
+
+struct ref *ref_remove_duplicates(struct ref *ref_map)
{
struct string_list refs = STRING_LIST_INIT_NODUP;
- struct string_list_item *item = NULL;
- struct ref *prev = NULL, *next = NULL;
- for (; ref_map; prev = ref_map, ref_map = next) {
- next = ref_map->next;
- if (!ref_map->peer_ref)
- continue;
+ struct ref *retval = NULL;
+ struct ref **p = &retval;
- item = string_list_lookup(&refs, ref_map->peer_ref->name);
- if (item) {
- if (strcmp(((struct ref *)item->util)->name,
- ref_map->name))
- die("%s tracks both %s and %s",
- ref_map->peer_ref->name,
- ((struct ref *)item->util)->name,
- ref_map->name);
- prev->next = ref_map->next;
- free(ref_map->peer_ref);
- free(ref_map);
- ref_map = prev; /* skip this; we freed it */
- continue;
- }
+ while (ref_map) {
+ struct ref *ref = ref_map;
+
+ ref_map = ref_map->next;
+ ref->next = NULL;
+
+ if (!ref->peer_ref) {
+ *p = ref;
+ p = &ref->next;
+ } else {
+ struct string_list_item *item =
+ string_list_insert(&refs, ref->peer_ref->name);
- item = string_list_insert(&refs, ref_map->peer_ref->name);
- item->util = ref_map;
+ if (item->util) {
+ /* Entry already existed */
+ handle_duplicate((struct ref *)item->util, ref);
+ } else {
+ *p = ref;
+ p = &ref->next;
+ item->util = ref;
+ }
+ }
}
+
string_list_clear(&refs, 0);
+ return retval;
}
int remote_has_url(struct remote *remote, const char *url)
size_t namelen;
int ret;
if (!kstar)
- die("Key '%s' of pattern had no '*'", key);
+ 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, '*');
- 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);
+ 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 int query_refspecs(struct refspec *refs, int ref_count, struct refspec *query)
+static void query_refspecs_multiple(struct refspec *rs,
+ struct refspec_item *query,
+ struct string_list *results)
{
int i;
int find_src = !query->src;
if (find_src && !query->dst)
- return error("query_refspecs: need either src or dst");
+ BUG("query_refspecs_multiple: need either src or dst");
- for (i = 0; i < ref_count; i++) {
- struct refspec *refspec = &refs[i];
+ for (i = 0; i < rs->nr; i++) {
+ struct refspec_item *refspec = &rs->items[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;
if (!refspec->dst)
continue;
if (refspec->pattern) {
+ if (match_name_with_pattern(key, needle, value, result))
+ string_list_append_nodup(results, *result);
+ } else if (!strcmp(needle, key)) {
+ string_list_append(results, value);
+ }
+ }
+}
+
+int query_refspecs(struct refspec *rs, struct refspec_item *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)
+ BUG("query_refspecs: need either src or dst");
+
+ for (i = 0; i < rs->nr; i++) {
+ struct refspec_item *refspec = &rs->items[i];
+ const char *key = find_src ? refspec->dst : refspec->src;
+ const char *value = find_src ? refspec->src : refspec->dst;
+
+ if (!refspec->dst)
+ continue;
+ if (refspec->pattern) {
if (match_name_with_pattern(key, needle, value, result)) {
query->force = refspec->force;
return 0;
return -1;
}
-char *apply_refspecs(struct refspec *refspecs, int nr_refspec,
- const char *name)
+char *apply_refspecs(struct refspec *rs, const char *name)
{
- struct refspec query;
+ struct refspec_item query;
- memset(&query, 0, sizeof(struct refspec));
+ memset(&query, 0, sizeof(struct refspec_item));
query.src = (char *)name;
- if (query_refspecs(refspecs, nr_refspec, &query))
+ if (query_refspecs(rs, &query))
return NULL;
return query.dst;
}
-int remote_find_tracking(struct remote *remote, struct refspec *refspec)
+int remote_find_tracking(struct remote *remote, struct refspec_item *refspec)
{
- return query_refspecs(remote->fetch, remote->fetch_refspec_nr, refspec);
+ return query_refspecs(&remote->fetch, 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;
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);
+ len = st_add3(sizeof(struct ref), strlen(ref->name), 1);
+ cpy = xmalloc(len);
+ memcpy(cpy, ref, len);
cpy->next = NULL;
- cpy->symref = ref->symref ? xstrdup(ref->symref) : NULL;
- cpy->remote_status = ref->remote_status ? xstrdup(ref->remote_status) : 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;
}
return ret;
}
-static void free_ref(struct ref *ref)
+void free_one_ref(struct ref *ref)
{
if (!ref)
return;
- free_ref(ref->peer_ref);
+ free_one_ref(ref->peer_ref);
free(ref->remote_status);
free(ref->symref);
free(ref);
struct ref *next;
while (ref) {
next = ref->next;
- free_ref(ref);
+ free_one_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;
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
*/
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
}
}
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;
}
}
static struct ref *alloc_delete_ref(void)
{
struct ref *ref = alloc_ref("(delete)");
- hashclr(ref->new_sha1);
+ oidclr(&ref->new_oid);
return ref;
}
-static struct ref *try_explicit_object_name(const char *name)
+static int try_explicit_object_name(const char *name,
+ struct ref **match)
{
- unsigned char sha1[20];
- struct ref *ref;
+ struct object_id oid;
- if (!*name)
- return alloc_delete_ref();
- if (get_sha1(name, sha1))
- return NULL;
- ref = alloc_ref(name);
- hashcpy(ref->new_sha1, sha1);
- return ref;
+ if (!*name) {
+ if (match)
+ *match = alloc_delete_ref();
+ return 0;
+ }
+
+ if (get_oid(name, &oid))
+ 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)
static char *guess_ref(const char *name, struct ref *peer)
{
struct strbuf buf = STRBUF_INIT;
- unsigned char sha1[20];
- const char *r = resolve_ref_unsafe(peer->name, sha1, 1, NULL);
+ const char *r = resolve_ref_unsafe(peer->name, RESOLVE_REF_READING,
+ NULL, 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
+ } else {
return NULL;
+ }
strbuf_addstr(&buf, name);
return strbuf_detach(&buf, NULL);
}
-static int match_explicit(struct ref *src, struct ref *dst,
- struct ref ***dst_tail,
- struct refspec *rs)
+static int match_explicit_lhs(struct ref *src,
+ struct refspec_item *rs,
+ struct ref **match,
+ int *allocated_match)
{
- struct ref *matched_src, *matched_dst;
- int copy_src;
-
- const char *dst_value = rs->dst;
- char *dst_guess;
-
- if (rs->pattern || rs->matching)
- return 0;
-
- matched_src = matched_dst = NULL;
- switch (count_refspec_match(rs->src, src, &matched_src)) {
+ switch (count_refspec_match(rs->src, src, match)) {
case 1:
- copy_src = 1;
- break;
+ 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.
*/
- 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;
+ 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);
+ return error(_("src refspec %s matches more than one"), rs->src);
}
+}
- if (!dst_value) {
- unsigned char sha1[20];
- int flag;
+static void show_push_unqualified_ref_name_error(const char *dst_value,
+ const char *matched_src_name)
+{
+ struct object_id oid;
+ enum object_type type;
- dst_value = resolve_ref_unsafe(matched_src->name, sha1, 1, &flag);
- if (!dst_value ||
- ((flag & REF_ISSYMREF) &&
- prefixcmp(dst_value, "refs/heads/")))
- die("%s cannot be resolved to branch.",
- matched_src->name);
+ /*
+ * TRANSLATORS: "matches '%s'%" is the <dst> part of "git push
+ * <remote> <src>:<dst>" push, and "being pushed ('%s')" is
+ * the <src>.
+ */
+ error(_("The destination you provided is not a full refname (i.e.,\n"
+ "starting with \"refs/\"). We tried to guess what you meant by:\n"
+ "\n"
+ "- Looking for a ref that matches '%s' on the remote side.\n"
+ "- Checking if the <src> being pushed ('%s')\n"
+ " is a ref in \"refs/{heads,tags}/\". If so we add a corresponding\n"
+ " refs/{heads,tags}/ prefix on the remote side.\n"
+ "\n"
+ "Neither worked, so we gave up. You must fully qualify the ref."),
+ dst_value, matched_src_name);
+
+ if (!advice_push_unqualified_ref_name)
+ return;
+
+ if (get_oid(matched_src_name, &oid))
+ BUG("'%s' is not a valid object, "
+ "match_explicit_lhs() should catch this!",
+ matched_src_name);
+ type = oid_object_info(the_repository, &oid, NULL);
+ if (type == OBJ_COMMIT) {
+ advise(_("The <src> part of the refspec is a commit object.\n"
+ "Did you mean to create a new branch by pushing to\n"
+ "'%s:refs/heads/%s'?"),
+ matched_src_name, dst_value);
+ } else if (type == OBJ_TAG) {
+ advise(_("The <src> part of the refspec is a tag object.\n"
+ "Did you mean to create a new tag by pushing to\n"
+ "'%s:refs/tags/%s'?"),
+ matched_src_name, dst_value);
+ } else if (type == OBJ_TREE) {
+ advise(_("The <src> part of the refspec is a tree object.\n"
+ "Did you mean to tag a new tree by pushing to\n"
+ "'%s:refs/tags/%s'?"),
+ matched_src_name, dst_value);
+ } else if (type == OBJ_BLOB) {
+ advise(_("The <src> part of the refspec is a blob object.\n"
+ "Did you mean to tag a new blob by pushing to\n"
+ "'%s:refs/tags/%s'?"),
+ matched_src_name, dst_value);
+ } else {
+ BUG("'%s' should be commit/tag/tree/blob, is '%d'",
+ matched_src_name, type);
}
+}
- switch (count_refspec_match(dst_value, dst, &matched_dst)) {
- case 1:
- break;
- 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)))
- matched_dst = make_linked_ref(dst_guess, dst_tail);
- else
- error("unable to push to unqualified destination: %s\n"
- "The destination refspec neither matches an "
- "existing ref on the remote nor\n"
- "begins with refs/, and we are unable to "
- "guess a prefix based on the source ref.",
+static int match_explicit(struct ref *src, struct ref *dst,
+ struct ref ***dst_tail,
+ struct refspec_item *rs)
+{
+ struct ref *matched_src, *matched_dst;
+ int allocated_src;
+
+ const char *dst_value = rs->dst;
+ char *dst_guess;
+
+ if (rs->pattern || rs->matching)
+ return 0;
+
+ matched_src = matched_dst = NULL;
+ if (match_explicit_lhs(src, rs, &matched_src, &allocated_src) < 0)
+ return -1;
+
+ if (!dst_value) {
+ int flag;
+
+ dst_value = resolve_ref_unsafe(matched_src->name,
+ RESOLVE_REF_READING,
+ NULL, &flag);
+ if (!dst_value ||
+ ((flag & REF_ISSYMREF) &&
+ !starts_with(dst_value, "refs/heads/")))
+ die(_("%s cannot be resolved to branch"),
+ matched_src->name);
+ }
+
+ switch (count_refspec_match(dst_value, dst, &matched_dst)) {
+ case 1:
+ break;
+ case 0:
+ if (starts_with(dst_value, "refs/")) {
+ matched_dst = make_linked_ref(dst_value, dst_tail);
+ } 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);
+ free(dst_guess);
+ } else {
+ show_push_unqualified_ref_name_error(dst_value,
+ matched_src->name);
+ }
break;
default:
matched_dst = NULL;
- error("dst refspec %s matches more than one.",
+ error(_("dst refspec %s matches more than one"),
dst_value);
break;
}
if (!matched_dst)
return -1;
if (matched_dst->peer_ref)
- return error("dst ref %s receives from more than one src.",
- matched_dst->name);
+ return error(_("dst ref %s receives from more than one src"),
+ matched_dst->name);
else {
- matched_dst->peer_ref = copy_src ? copy_ref(matched_src) : matched_src;
+ matched_dst->peer_ref = allocated_src ?
+ matched_src :
+ copy_ref(matched_src);
matched_dst->force = rs->force;
}
return 0;
}
static int match_explicit_refs(struct ref *src, struct ref *dst,
- struct ref ***dst_tail, struct refspec *rs,
- int rs_nr)
+ struct ref ***dst_tail, struct refspec *rs)
{
int i, errs;
- for (i = errs = 0; i < rs_nr; i++)
- errs += match_explicit(src, dst, dst_tail, &rs[i]);
+ for (i = errs = 0; i < rs->nr; i++)
+ errs += match_explicit(src, dst, dst_tail, &rs->items[i]);
return errs;
}
-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)
+static char *get_ref_match(const struct refspec *rs, const struct ref *ref,
+ int send_mirror, int direction,
+ const struct refspec_item **ret_pat)
{
- const struct refspec *pat;
+ const struct refspec_item *pat;
char *name;
int i;
int matching_refs = -1;
- for (i = 0; i < rs_nr; i++) {
- if (rs[i].matching &&
- (matching_refs == -1 || rs[i].force)) {
+ for (i = 0; i < rs->nr; i++) {
+ const struct refspec_item *item = &rs->items[i];
+ if (item->matching &&
+ (matching_refs == -1 || item->force)) {
matching_refs = i;
continue;
}
- if (rs[i].pattern) {
- const char *dst_side = rs[i].dst ? rs[i].dst : rs[i].src;
+ if (item->pattern) {
+ const char *dst_side = item->dst ? item->dst : item->src;
int match;
if (direction == FROM_SRC)
- match = match_name_with_pattern(rs[i].src, ref->name, dst_side, &name);
+ match = match_name_with_pattern(item->src, ref->name, dst_side, &name);
else
- match = match_name_with_pattern(dst_side, ref->name, rs[i].src, &name);
+ match = match_name_with_pattern(dst_side, ref->name, item->src, &name);
if (match) {
matching_refs = i;
break;
if (matching_refs == -1)
return NULL;
- pat = rs + matching_refs;
+ pat = &rs->items[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/"))
+ if (!send_mirror && !starts_with(ref->name, "refs/heads/"))
return NULL;
name = xstrdup(ref->name);
}
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(the_repository, oid, 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 (oid_object_info(the_repository, &ref->new_oid, 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) {
+ const int reachable_flag = 1;
+ struct commit_list *found_commits;
+ struct commit **src_commits;
+ int nr_src_commits = 0, alloc_src_commits = 16;
+ ALLOC_ARRAY(src_commits, alloc_src_commits);
+
+ for_each_string_list_item(item, &src_tag) {
+ struct ref *ref = item->util;
+ struct commit *commit;
+
+ if (is_null_oid(&ref->new_oid))
+ continue;
+ commit = lookup_commit_reference_gently(the_repository,
+ &ref->new_oid,
+ 1);
+ if (!commit)
+ /* not pushing a commit, which is not an error */
+ continue;
+
+ ALLOC_GROW(src_commits, nr_src_commits + 1, alloc_src_commits);
+ src_commits[nr_src_commits++] = commit;
+ }
+
+ found_commits = get_reachable_subset(sent_tips.tip, sent_tips.nr,
+ src_commits, nr_src_commits,
+ reachable_flag);
+
+ for_each_string_list_item(item, &src_tag) {
+ struct ref *dst_ref;
+ struct ref *ref = item->util;
+ struct commit *commit;
+
+ if (is_null_oid(&ref->new_oid))
+ continue;
+ commit = lookup_commit_reference_gently(the_repository,
+ &ref->new_oid,
+ 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 (!(commit->object.flags & reachable_flag))
+ 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);
+ }
+
+ clear_commit_marks_many(nr_src_commits, src_commits, reachable_flag);
+ free(src_commits);
+ free_commit_list(found_commits);
+ }
+
+ 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, struct refspec *rs)
+{
+ int ret = 0;
+ int i;
+
+ for (i = 0; i < rs->nr; i++) {
+ struct refspec_item *item = &rs->items[i];
+
+ if (item->pattern || item->matching)
+ continue;
+
+ ret |= match_explicit_lhs(src, item, NULL, NULL);
+ }
+
+ return ret;
+}
+
/*
* Given the set of refs the local repository has, the set of refs the
* remote repository has, and the refspec used for push, determine
* dst (e.g. pushing to a new branch, done in match_explicit_refs).
*/
int match_push_refs(struct ref *src, struct ref **dst,
- int nr_refspec, const char **refspec, int flags)
+ struct refspec *rs, int flags)
{
- struct refspec *rs;
int send_all = flags & MATCH_REFS_ALL;
int send_mirror = flags & MATCH_REFS_MIRROR;
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);
- errs = match_explicit_refs(src, *dst, &dst_tail, rs, nr_refspec);
+ /* If no refspec is provided, use the default ":" */
+ if (!rs->nr)
+ refspec_append(rs, ":");
+
+ errs = match_explicit_refs(src, *dst, &dst_tail, rs);
/* pick the remainder */
for (ref = src; ref; ref = ref->next) {
+ struct string_list_item *dst_item;
struct ref *dst_peer;
- const struct refspec *pat = NULL;
+ const struct refspec_item *pat = NULL;
char *dst_name;
- if (ref->peer_ref)
- continue;
-
- dst_name = get_ref_match(rs, nr_refspec, ref, send_mirror, FROM_SRC, &pat);
+ dst_name = get_ref_match(rs, ref, send_mirror, FROM_SRC, &pat);
if (!dst_name)
continue;
- dst_peer = find_ref_by_name(*dst, dst_name);
+ if (!dst_ref_index.nr)
+ prepare_ref_index(&dst_ref_index, *dst);
+
+ 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. */
/*
* 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, ref->new_sha1);
+ oidcpy(&dst_peer->new_oid, &ref->new_oid);
+ string_list_insert(&dst_ref_index,
+ dst_peer->name)->util = dst_peer;
}
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;
/* We're already sending something to this ref. */
continue;
- src_name = get_ref_match(rs, nr_refspec, ref, send_mirror, FROM_DST, NULL);
+ src_name = get_ref_match(rs, ref, send_mirror, FROM_DST, NULL);
if (src_name) {
- if (!find_ref_by_name(src, 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)
+ 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)
- hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
+ oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
else if (!send_mirror)
continue;
- ref->deletion = is_null_sha1(ref->new_sha1);
+ ref->deletion = is_null_oid(&ref->new_oid);
if (!ref->deletion &&
- !hashcmp(ref->old_sha1, ref->new_sha1)) {
+ oideq(&ref->old_oid, &ref->new_oid)) {
ref->status = REF_STATUS_UPTODATE;
continue;
}
- /* This part determines what can overwrite what.
- * The rules are:
+ /*
+ * 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 (!oideq(&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.
*
- * (0) you can always use --force or +A:B notation to
- * selectively force individual ref pairs.
+ * Decide whether an individual refspec A:B can be
+ * pushed. The push will succeed if any of the
+ * following are true:
*
- * (1) if the old thing does not exist, it is OK.
+ * (1) the remote reference B does not exist
*
- * (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.
+ * (2) the remote reference B is being removed (i.e.,
+ * pushing :B where no source is specified)
*
- * (3) if both new and old are commit-ish, and new is a
- * descendant of old, it is OK.
+ * (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) regardless of all of the above, removing :B is
- * always allowed.
+ * (4) it is forced using the +A:B notation, or by
+ * passing the --force argument
*/
- 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 (!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(the_repository, &ref->old_oid, 1) ||
+ !lookup_commit_reference_gently(the_repository, &ref->new_oid, 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;
+ }
+}
- if (ref->nonfastforward && !ref->force && !force_update) {
- ref->status = REF_STATUS_REJECT_NONFASTFORWARD;
+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, &ref) == 1)
+ ret->merge[i]->dst = ref;
+ else
+ ret->merge[i]->dst = xstrdup(ret->merge_name[i]);
}
}
if (!name || !*name || !strcmp(name, "HEAD"))
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]);
- if (remote_find_tracking(ret->remote, ret->merge[i])
- && !strcmp(ret->remote_name, "."))
- ret->merge[i]->dst = xstrdup(ret->merge_name[i]);
- }
- }
- }
+ ret = make_branch(name, strlen(name));
+ set_merge(ret);
return ret;
}
{
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, 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.nr) {
+ char *dst;
+ const char *ret;
+
+ dst = apply_refspecs(&remote->push, 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;
+ }
+ }
+
+ 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)
+{
+ int flag;
+
+ if (!resolve_ref_unsafe(refname, 0, NULL, &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)
+ const struct refspec_item *refspec)
{
const struct ref *ref;
struct ref *ret = NULL;
struct ref **tail = &ret;
- char *expn_name;
-
for (ref = remote_refs; ref; ref = ref->next) {
+ char *expn_name = NULL;
+
if (strchr(ref->name, '^'))
continue; /* a dereference item */
if (match_name_with_pattern(refspec->src, ref->name,
- refspec->dst, &expn_name)) {
+ refspec->dst, &expn_name) &&
+ !ignore_symref_update(expn_name)) {
struct ref *cpy = copy_ref(ref);
cpy->peer_ref = alloc_ref(expn_name);
- free(expn_name);
if (refspec->force)
cpy->peer_ref->force = 1;
*tail = cpy;
tail = &cpy->next;
}
+ free(expn_name);
}
return ret;
static const struct ref *find_ref_by_name_abbrev(const struct ref *refs, const char *name)
{
const struct ref *ref;
+ const struct ref *best_match = NULL;
+ int best_score = 0;
+
for (ref = refs; ref; ref = ref->next) {
- if (refname_match(name, ref->name, ref_fetch_rules))
- return ref;
+ int score = refname_match(name, ref->name);
+
+ if (best_score < score) {
+ best_match = ref;
+ best_score = score;
+ }
}
- return NULL;
+ return best_match;
}
struct ref *get_remote_ref(const struct ref *remote_refs, const char *name)
if (!name || name[0] == '\0')
return NULL;
- if (!prefixcmp(name, "refs/"))
+ if (starts_with(name, "refs/"))
return alloc_ref(name);
- if (!prefixcmp(name, "heads/") ||
- !prefixcmp(name, "tags/") ||
- !prefixcmp(name, "remotes/"))
+ if (starts_with(name, "heads/") ||
+ starts_with(name, "tags/") ||
+ starts_with(name, "remotes/"))
return alloc_ref_with_prefix("refs/", 5, name);
return alloc_ref_with_prefix("refs/heads/", 11, name);
}
int get_fetch_map(const struct ref *remote_refs,
- const struct refspec *refspec,
+ const struct refspec_item *refspec,
struct ref ***tail,
int missing_ok)
{
} 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);
+ ref_map->exact_oid = 1;
+ } else {
+ ref_map = get_remote_ref(remote_refs, name);
+ }
if (!missing_ok && !ref_map)
- die("Couldn't find remote ref %s", name);
+ die(_("couldn't find remote ref %s"), name);
if (ref_map) {
ref_map->peer_ref = get_local_ref(refspec->dst);
if (ref_map->peer_ref && refspec->force)
for (rmp = &ref_map; *rmp; ) {
if ((*rmp)->peer_ref) {
- if (check_refname_format((*rmp)->peer_ref->name + 5,
- REFNAME_ALLOW_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",
+ error(_("* Ignoring funny ref '%s' locally"),
(*rmp)->peer_ref->name);
*rmp = (*rmp)->next;
free(ignore->peer_ref);
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;
}
-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.
+ * Compute the commit ahead/behind values for the pair branch_name, base.
+ *
+ * If abf is AHEAD_BEHIND_FULL, compute the full ahead/behind and return the
+ * counts in *num_ours and *num_theirs. If abf is AHEAD_BEHIND_QUICK, skip
+ * the (potentially expensive) a/b computation (*num_ours and *num_theirs are
+ * set to zero).
+ *
+ * Returns -1 if num_ours and num_theirs could not be filled in (e.g., ref
+ * does not exist). Returns 0 if the commits are identical. Returns 1 if
+ * commits are different.
*/
-int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs)
+
+static int stat_branch_pair(const char *branch_name, const char *base,
+ int *num_ours, int *num_theirs,
+ enum ahead_behind_flags abf)
{
- unsigned char sha1[20];
+ struct object_id oid;
struct commit *ours, *theirs;
- char symmetric[84];
struct rev_info revs;
- const char *rev_argv[10], *base;
- int rev_argc;
+ struct argv_array argv = ARGV_ARRAY_INIT;
- /*
- * 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);
+ /* Cannot stat if what we used to build on no longer exists */
+ if (read_ref(base, &oid))
+ return -1;
+ theirs = lookup_commit_reference(the_repository, &oid);
if (!theirs)
- return 0;
+ return -1;
- if (read_ref(branch->refname, sha1))
- return 0;
- ours = lookup_commit_reference(sha1);
+ if (read_ref(branch_name, &oid))
+ return -1;
+ ours = lookup_commit_reference(the_repository, &oid);
if (!ours)
- return 0;
+ return -1;
+
+ *num_theirs = *num_ours = 0;
/* are we the same? */
if (theirs == ours)
return 0;
+ if (abf == AHEAD_BEHIND_QUICK)
+ return 1;
+ if (abf != AHEAD_BEHIND_FULL)
+ BUG("stat_branch_pair: invalid abf '%d'", abf);
/* 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);
+ 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, "--");
+
+ repo_init_revisions(the_repository, &revs, NULL);
+ 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;
- *num_theirs = 0;
while (1) {
struct commit *c = get_revision(&revs);
if (!c)
/* clear object flags smudged by the above traversal */
clear_commit_marks(ours, ALL_REV_FLAGS);
clear_commit_marks(theirs, ALL_REV_FLAGS);
+
+ argv_array_clear(&argv);
return 1;
}
/*
- * Return true when there is anything to report, otherwise false.
+ * Lookup the tracking branch for the given branch and if present, optionally
+ * compute the commit ahead/behind values for the pair.
+ *
+ * If for_push is true, the tracking branch refers to the push branch,
+ * otherwise it refers to the upstream branch.
+ *
+ * The name of the tracking branch (or NULL if it is not defined) is
+ * returned via *tracking_name, if it is not itself NULL.
+ *
+ * If abf is AHEAD_BEHIND_FULL, compute the full ahead/behind and return the
+ * counts in *num_ours and *num_theirs. If abf is AHEAD_BEHIND_QUICK, skip
+ * the (potentially expensive) a/b computation (*num_ours and *num_theirs are
+ * set to zero).
+ *
+ * Returns -1 if num_ours and num_theirs could not be filled in (e.g., no
+ * upstream defined, or ref does not exist). Returns 0 if the commits are
+ * identical. Returns 1 if commits are different.
*/
-int format_tracking_info(struct branch *branch, struct strbuf *sb)
+int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs,
+ const char **tracking_name, int for_push,
+ enum ahead_behind_flags abf)
{
- int num_ours, num_theirs;
const char *base;
- if (!stat_tracking_info(branch, &num_ours, &num_theirs))
- return 0;
+ /* Cannot stat unless we are marked to build on top of somebody else. */
+ base = for_push ? branch_get_push(branch, NULL) :
+ branch_get_upstream(branch, NULL);
+ if (tracking_name)
+ *tracking_name = base;
+ if (!base)
+ return -1;
- base = branch->merge[0]->dst;
- base = shorten_unambiguous_ref(base, 0);
- if (!num_theirs)
+ return stat_branch_pair(branch->refname, base, num_ours, num_theirs, abf);
+}
+
+/*
+ * Return true when there is anything to report, otherwise false.
+ */
+int format_tracking_info(struct branch *branch, struct strbuf *sb,
+ enum ahead_behind_flags abf)
+{
+ int ours, theirs, sti;
+ const char *full_base;
+ char *base;
+ int upstream_is_gone = 0;
+
+ sti = stat_tracking_info(branch, &ours, &theirs, &full_base, 0, abf);
+ if (sti < 0) {
+ if (!full_base)
+ return 0;
+ upstream_is_gone = 1;
+ }
+
+ 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 (!sti) {
+ strbuf_addf(sb,
+ _("Your branch is up to date with '%s'.\n"),
+ base);
+ } else if (abf == AHEAD_BEHIND_QUICK) {
+ strbuf_addf(sb,
+ _("Your branch and '%s' refer to different commits.\n"),
+ base);
+ if (advice_status_hints)
+ strbuf_addf(sb, _(" (use \"%s\" for details)\n"),
+ "git status --ahead-behind");
+ } 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",
- num_ours),
- base, num_ours);
- else if (!num_ours)
+ 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",
- num_theirs),
- base, num_theirs);
- else
+ 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, "
"Your branch and '%s' have diverged,\n"
"and have %d and %d different commits each, "
"respectively.\n",
- num_theirs),
- base, num_ours, num_theirs);
+ 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 unsigned char *sha1, int flag, void *cb_data)
+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;
- 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);
+ 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;
}
if (head->symref)
return copy_ref(find_ref_by_name(refs, head->symref));
- /* If refs/heads/master could be right, it is. */
+ /* If a remote branch exists with the default branch name, let's use it. */
if (!all) {
+ char *ref = xstrfmt("refs/heads/%s", git_default_branch_name());
+
+ r = find_ref_by_name(refs, ref);
+ free(ref);
+ if (r && oideq(&r->old_oid, &head->old_oid))
+ return copy_ref(r);
+
+ /* Fall back to the hard-coded historical default */
r = find_ref_by_name(refs, "refs/heads/master");
- if (r && !hashcmp(r->old_sha1, head->old_sha1))
+ if (r && oideq(&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 &&
- !prefixcmp(r->name, "refs/heads/") &&
- !hashcmp(r->old_sha1, head->old_sha1)) {
+ starts_with(r->name, "refs/heads/") &&
+ oideq(&r->old_oid, &head->old_oid)) {
*tail = copy_ref(r);
tail = &((*tail)->next);
if (!all)
struct stale_heads_info {
struct string_list *ref_names;
struct ref **stale_refs_tail;
- struct refspec *refs;
- int ref_count;
+ struct refspec *rs;
};
-static int get_stale_heads_cb(const char *refname,
- const unsigned char *sha1, int flags, void *cb_data)
+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 refspec query;
- memset(&query, 0, sizeof(struct refspec));
+ struct string_list matches = STRING_LIST_INIT_DUP;
+ struct refspec_item query;
+ int i, stale = 1;
+ memset(&query, 0, sizeof(struct refspec_item));
query.dst = (char *)refname;
- if (query_refspecs(info->refs, info->ref_count, &query))
- return 0; /* No matches */
+ query_refspecs_multiple(info->rs, &query, &matches);
+ if (matches.nr == 0)
+ goto clean_exit; /* No matches */
/*
* If we did find a suitable refspec and it's not a symref and
* it's not in the list of refs that currently exist in that
- * remote we consider it to be stale.
+ * remote, we consider it to be stale. In order to deal with
+ * overlapping refspecs, we need to go over all of the
+ * matching refs.
*/
- if (!((flags & REF_ISSYMREF) ||
- string_list_has_string(info->ref_names, query.src))) {
+ if (flags & REF_ISSYMREF)
+ goto clean_exit;
+
+ for (i = 0; stale && i < matches.nr; i++)
+ if (string_list_has_string(info->ref_names, matches.items[i].string))
+ stale = 0;
+
+ if (stale) {
struct ref *ref = make_linked_ref(refname, &info->stale_refs_tail);
- hashcpy(ref->new_sha1, sha1);
+ oidcpy(&ref->new_oid, oid);
}
- free(query.src);
+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 *get_stale_heads(struct refspec *rs, 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;
+ info.rs = rs;
for (ref = fetch_map; ref; ref = ref->next)
string_list_append(&ref_names, ref->name);
- sort_string_list(&ref_names);
+ 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])
+ oidclr(&entry->expect);
+ else if (get_oid(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, refname);
+ if (!dst)
+ return -1; /* no tracking ref for refname at remote */
+ if (read_ref(dst, oid))
+ 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)
+ oidcpy(&ref->old_oid_expect, &entry->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);
+}
projects / platform / upstream / git.git / blobdiff