static struct remote **remotes;
static int allocated_remotes;
+static struct branch **branches;
+static int allocated_branches;
+
+static struct branch *current_branch;
+static const char *default_remote_name;
+
#define BUF_SIZE (2048)
static char buffer[BUF_SIZE];
remote->fetch_refspec_nr = nr;
}
-static void add_uri(struct remote *remote, const char *uri)
+static void add_url(struct remote *remote, const char *url)
{
- int nr = remote->uri_nr + 1;
- remote->uri =
- xrealloc(remote->uri, nr * sizeof(char *));
- remote->uri[nr-1] = uri;
- remote->uri_nr = nr;
+ int nr = remote->url_nr + 1;
+ remote->url =
+ xrealloc(remote->url, nr * sizeof(char *));
+ remote->url[nr-1] = url;
+ remote->url_nr = nr;
}
static struct remote *make_remote(const char *name, int len)
return remotes[empty];
}
+static void add_merge(struct branch *branch, const char *name)
+{
+ int nr = branch->merge_nr + 1;
+ branch->merge_name =
+ xrealloc(branch->merge_name, nr * sizeof(char *));
+ branch->merge_name[nr-1] = name;
+ branch->merge_nr = nr;
+}
+
+static struct branch *make_branch(const char *name, int len)
+{
+ int i, empty = -1;
+ char *refname;
+
+ for (i = 0; i < allocated_branches; i++) {
+ if (!branches[i]) {
+ if (empty < 0)
+ empty = i;
+ } else {
+ if (len ? (!strncmp(name, branches[i]->name, len) &&
+ !branches[i]->name[len]) :
+ !strcmp(name, branches[i]->name))
+ return branches[i];
+ }
+ }
+
+ if (empty < 0) {
+ empty = allocated_branches;
+ allocated_branches += allocated_branches ? allocated_branches : 1;
+ branches = xrealloc(branches,
+ sizeof(*branches) * allocated_branches);
+ memset(branches + empty, 0,
+ (allocated_branches - empty) * sizeof(*branches));
+ }
+ branches[empty] = xcalloc(1, sizeof(struct branch));
+ if (len)
+ branches[empty]->name = xstrndup(name, len);
+ else
+ branches[empty]->name = xstrdup(name);
+ refname = malloc(strlen(name) + strlen("refs/heads/") + 1);
+ strcpy(refname, "refs/heads/");
+ strcpy(refname + strlen("refs/heads/"),
+ branches[empty]->name);
+ branches[empty]->refname = refname;
+
+ return branches[empty];
+}
+
static void read_remotes_file(struct remote *remote)
{
FILE *f = fopen(git_path("remotes/%s", remote->name), "r");
switch (value_list) {
case 0:
- add_uri(remote, xstrdup(s));
+ add_url(remote, xstrdup(s));
break;
case 1:
add_push_refspec(remote, xstrdup(s));
static void read_branches_file(struct remote *remote)
{
const char *slash = strchr(remote->name, '/');
+ char *frag;
+ char *branch;
int n = slash ? slash - remote->name : 1000;
FILE *f = fopen(git_path("branches/%.*s", n, remote->name), "r");
char *s, *p;
strcpy(p, s);
if (slash)
strcat(p, slash);
- add_uri(remote, p);
+ frag = strchr(p, '#');
+ if (frag) {
+ *(frag++) = '\0';
+ branch = xmalloc(strlen(frag) + 12);
+ strcpy(branch, "refs/heads/");
+ strcat(branch, frag);
+ } else {
+ branch = "refs/heads/master";
+ }
+ add_url(remote, p);
+ add_fetch_refspec(remote, branch);
+ remote->fetch_tags = 1; /* always auto-follow */
}
-static char *default_remote_name = NULL;
-static const char *current_branch = NULL;
-static int current_branch_len = 0;
-
static int handle_config(const char *key, const char *value)
{
const char *name;
const char *subkey;
struct remote *remote;
- if (!prefixcmp(key, "branch.") && current_branch &&
- !strncmp(key + 7, current_branch, current_branch_len) &&
- !strcmp(key + 7 + current_branch_len, ".remote")) {
- free(default_remote_name);
- default_remote_name = xstrdup(value);
+ struct branch *branch;
+ if (!prefixcmp(key, "branch.")) {
+ name = key + 7;
+ subkey = strrchr(name, '.');
+ branch = make_branch(name, subkey - name);
+ if (!subkey)
+ return 0;
+ if (!value)
+ return 0;
+ if (!strcmp(subkey, ".remote")) {
+ branch->remote_name = xstrdup(value);
+ if (branch == current_branch)
+ default_remote_name = branch->remote_name;
+ } else if (!strcmp(subkey, ".merge"))
+ add_merge(branch, xstrdup(value));
+ return 0;
}
if (prefixcmp(key, "remote."))
return 0;
return 0; /* ignore unknown booleans */
}
if (!strcmp(subkey, ".url")) {
- add_uri(remote, xstrdup(value));
+ add_url(remote, xstrdup(value));
} else if (!strcmp(subkey, ".push")) {
add_push_refspec(remote, xstrdup(value));
} else if (!strcmp(subkey, ".fetch")) {
remote->receivepack = xstrdup(value);
else
error("more than one receivepack given, using the first");
+ } else if (!strcmp(subkey, ".uploadpack")) {
+ if (!remote->uploadpack)
+ remote->uploadpack = xstrdup(value);
+ else
+ error("more than one uploadpack given, using the first");
+ } else if (!strcmp(subkey, ".tagopt")) {
+ if (!strcmp(value, "--no-tags"))
+ remote->fetch_tags = -1;
}
return 0;
}
head_ref = resolve_ref("HEAD", sha1, 0, &flag);
if (head_ref && (flag & REF_ISSYMREF) &&
!prefixcmp(head_ref, "refs/heads/")) {
- current_branch = head_ref + strlen("refs/heads/");
- current_branch_len = strlen(current_branch);
+ current_branch =
+ make_branch(head_ref + strlen("refs/heads/"), 0);
}
git_config(handle_config);
}
-static struct refspec *parse_ref_spec(int nr_refspec, const char **refspec)
+struct refspec *parse_ref_spec(int nr_refspec, const char **refspec)
{
int i;
struct refspec *rs = xcalloc(sizeof(*rs), nr_refspec);
name = default_remote_name;
ret = make_remote(name, 0);
if (name[0] != '/') {
- if (!ret->uri)
+ if (!ret->url)
read_remotes_file(ret);
- if (!ret->uri)
+ if (!ret->url)
read_branches_file(ret);
}
- if (!ret->uri)
- add_uri(ret, name);
- if (!ret->uri)
+ if (!ret->url)
+ add_url(ret, name);
+ if (!ret->url)
return NULL;
ret->fetch = parse_ref_spec(ret->fetch_refspec_nr, ret->fetch_refspec);
ret->push = parse_ref_spec(ret->push_refspec_nr, ret->push_refspec);
return ret;
}
-int remote_has_uri(struct remote *remote, const char *uri)
+int for_each_remote(each_remote_fn fn, void *priv)
+{
+ int i, result = 0;
+ read_config();
+ for (i = 0; i < allocated_remotes && !result; i++) {
+ struct remote *r = remotes[i];
+ if (!r)
+ continue;
+ if (!r->fetch)
+ r->fetch = parse_ref_spec(r->fetch_refspec_nr,
+ r->fetch_refspec);
+ if (!r->push)
+ r->push = parse_ref_spec(r->push_refspec_nr,
+ r->push_refspec);
+ result = fn(r, priv);
+ }
+ return result;
+}
+
+void ref_remove_duplicates(struct ref *ref_map)
+{
+ 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;
+ } else {
+ posn = &(*posn)->next;
+ }
+ }
+ }
+}
+
+int remote_has_url(struct remote *remote, const char *url)
{
int i;
- for (i = 0; i < remote->uri_nr; i++) {
- if (!strcmp(remote->uri[i], uri))
+ for (i = 0; i < remote->url_nr; i++) {
+ if (!strcmp(remote->url[i], url))
return 1;
}
return 0;
}
+/*
+ * Returns true if, under the matching rules for fetching, name is the
+ * same as the given full name.
+ */
+static int ref_matches_abbrev(const char *name, const char *full)
+{
+ if (!prefixcmp(name, "refs/") || !strcmp(name, "HEAD"))
+ return !strcmp(name, full);
+ if (prefixcmp(full, "refs/"))
+ return 0;
+ if (!prefixcmp(name, "heads/") ||
+ !prefixcmp(name, "tags/") ||
+ !prefixcmp(name, "remotes/"))
+ return !strcmp(name, full + 5);
+ if (prefixcmp(full + 5, "heads/"))
+ return 0;
+ return !strcmp(full + 11, name);
+}
+
int remote_find_tracking(struct remote *remote, struct refspec *refspec)
{
+ int find_src = refspec->src == NULL;
+ char *needle, **result;
int i;
+
+ 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;
+ }
+
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)
continue;
if (fetch->pattern) {
- if (!prefixcmp(refspec->src, fetch->src)) {
- refspec->dst =
- xmalloc(strlen(fetch->dst) +
- strlen(refspec->src) -
- strlen(fetch->src) + 1);
- strcpy(refspec->dst, fetch->dst);
- strcpy(refspec->dst + strlen(fetch->dst),
- refspec->src + strlen(fetch->src));
- refspec->force = fetch->force;
- return 0;
- }
- } else {
- if (!strcmp(refspec->src, fetch->src)) {
- refspec->dst = xstrdup(fetch->dst);
+ 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;
return 0;
}
+ } else if (!strcmp(needle, key)) {
+ *result = xstrdup(value);
+ refspec->force = fetch->force;
+ return 0;
}
}
- refspec->dst = NULL;
return -1;
}
+struct ref *alloc_ref(unsigned namelen)
+{
+ struct ref *ret = xmalloc(sizeof(struct ref) + namelen);
+ memset(ret, 0, sizeof(struct ref) + namelen);
+ return ret;
+}
+
+static struct ref *copy_ref(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;
+}
+
+void free_refs(struct ref *ref)
+{
+ struct ref *next;
+ while (ref) {
+ next = ref->next;
+ if (ref->peer_ref)
+ free(ref->peer_ref);
+ free(ref);
+ ref = next;
+ }
+}
+
static int count_refspec_match(const char *pattern,
struct ref *refs,
struct ref **matched_ref)
for (weak_match = match = 0; refs; refs = refs->next) {
char *name = refs->name;
int namelen = strlen(name);
- int weak_match;
if (namelen < patlen ||
memcmp(name + namelen - patlen, pattern, patlen))
}
}
-static void link_dst_tail(struct ref *ref, struct ref ***tail)
+static void tail_link_ref(struct ref *ref, struct ref ***tail)
{
**tail = ref;
+ while (ref->next)
+ ref = ref->next;
*tail = &ref->next;
- **tail = NULL;
}
static struct ref *try_explicit_object_name(const char *name)
int len;
if (!*name) {
- ref = xcalloc(1, sizeof(*ref) + 20);
+ ref = alloc_ref(20);
strcpy(ref->name, "(delete)");
hashclr(ref->new_sha1);
return ref;
if (get_sha1(name, sha1))
return NULL;
len = strlen(name) + 1;
- ref = xcalloc(1, sizeof(*ref) + len);
+ ref = alloc_ref(len);
memcpy(ref->name, name, len);
hashcpy(ref->new_sha1, sha1);
return ref;
}
-static int match_explicit_refs(struct ref *src, struct ref *dst,
- struct ref ***dst_tail, struct refspec *rs,
- int rs_nr)
+static struct ref *make_linked_ref(const char *name, struct ref ***tail)
{
- int i, errs;
- for (i = errs = 0; i < rs_nr; i++) {
- struct ref *matched_src, *matched_dst;
+ struct ref *ret;
+ size_t len;
- const char *dst_value = rs[i].dst;
+ len = strlen(name) + 1;
+ ret = alloc_ref(len);
+ memcpy(ret->name, name, len);
+ tail_link_ref(ret, tail);
+ return ret;
+}
- if (rs[i].pattern)
- continue;
+static int match_explicit(struct ref *src, struct ref *dst,
+ struct ref ***dst_tail,
+ struct refspec *rs,
+ int errs)
+{
+ struct ref *matched_src, *matched_dst;
- if (dst_value == NULL)
- dst_value = rs[i].src;
+ const char *dst_value = rs->dst;
- matched_src = matched_dst = NULL;
- switch (count_refspec_match(rs[i].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[i].src);
- if (matched_src)
- break;
- errs = 1;
- error("src refspec %s does not match any.",
- rs[i].src);
- break;
- default:
- errs = 1;
- error("src refspec %s matches more than one.",
- rs[i].src);
- break;
- }
- switch (count_refspec_match(dst_value, dst, &matched_dst)) {
- case 1:
- break;
- case 0:
- if (!memcmp(dst_value, "refs/", 5)) {
- int len = strlen(dst_value) + 1;
- matched_dst = xcalloc(1, sizeof(*dst) + len);
- memcpy(matched_dst->name, dst_value, len);
- link_dst_tail(matched_dst, dst_tail);
- }
- else if (!strcmp(rs[i].src, dst_value) &&
- matched_src) {
- /* pushing "master:master" when
- * remote does not have master yet.
- */
- int len = strlen(matched_src->name) + 1;
- matched_dst = xcalloc(1, sizeof(*dst) + len);
- memcpy(matched_dst->name, matched_src->name,
- len);
- link_dst_tail(matched_dst, dst_tail);
- }
- else {
- errs = 1;
- error("dst refspec %s does not match any "
- "existing ref on the remote and does "
- "not start with refs/.", dst_value);
- }
- break;
- default:
- errs = 1;
- error("dst refspec %s matches more than one.",
- dst_value);
- break;
- }
- if (errs)
- continue;
- if (matched_dst->peer_ref) {
- errs = 1;
- error("dst ref %s receives from more than one src.",
- matched_dst->name);
- }
- else {
- matched_dst->peer_ref = matched_src;
- matched_dst->force = rs[i].force;
- }
+ if (rs->pattern)
+ return errs;
+
+ 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)
+ error("src refspec %s does not match any.", rs->src);
+ break;
+ default:
+ matched_src = NULL;
+ error("src refspec %s matches more than one.", rs->src);
+ break;
+ }
+
+ if (!matched_src)
+ errs = 1;
+
+ if (!dst_value) {
+ if (!matched_src)
+ return errs;
+ dst_value = matched_src->name;
}
+
+ 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
+ error("dst refspec %s does not match any "
+ "existing ref on the remote and does "
+ "not start with refs/.", dst_value);
+ break;
+ default:
+ matched_dst = NULL;
+ error("dst refspec %s matches more than one.",
+ dst_value);
+ break;
+ }
+ if (errs || !matched_dst)
+ return 1;
+ if (matched_dst->peer_ref) {
+ errs = 1;
+ error("dst ref %s receives from more than one src.",
+ matched_dst->name);
+ }
+ else {
+ matched_dst->peer_ref = matched_src;
+ matched_dst->force = rs->force;
+ }
+ return errs;
+}
+
+static int match_explicit_refs(struct ref *src, struct ref *dst,
+ struct ref ***dst_tail, struct refspec *rs,
+ int rs_nr)
+{
+ int i, errs;
+ for (i = errs = 0; i < rs_nr; i++)
+ errs |= match_explicit(src, dst, dst_tail, &rs[i], errs);
return -errs;
}
return NULL;
}
+/*
+ * 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.
+ */
int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail,
int nr_refspec, char **refspec, int all)
{
if (!pat)
continue;
}
+ else if (prefixcmp(src->name, "refs/heads/"))
+ /*
+ * "matching refs"; traditionally we pushed everything
+ * including refs outside refs/heads/ hierarchy, but
+ * that does not make much sense these days.
+ */
+ continue;
if (pat) {
const char *dst_side = pat->dst ? pat->dst : pat->src;
goto free_name;
if (!dst_peer) {
/* Create a new one and link it */
- int len = strlen(dst_name) + 1;
- dst_peer = xcalloc(1, sizeof(*dst_peer) + len);
- memcpy(dst_peer->name, dst_name, len);
+ dst_peer = make_linked_ref(dst_name, dst_tail);
hashcpy(dst_peer->new_sha1, src->new_sha1);
- link_dst_tail(dst_peer, dst_tail);
}
dst_peer->peer_ref = src;
+ if (pat)
+ dst_peer->force = pat->force;
free_name:
free(dst_name);
}
return 0;
}
+
+struct branch *branch_get(const char *name)
+{
+ struct branch *ret;
+
+ read_config();
+ 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]);
+ remote_find_tracking(ret->remote,
+ ret->merge[i]);
+ }
+ }
+ }
+ return ret;
+}
+
+int branch_has_merge_config(struct branch *branch)
+{
+ return branch && !!branch->merge;
+}
+
+int branch_merge_matches(struct branch *branch,
+ int i,
+ const char *refname)
+{
+ if (!branch || i < 0 || i >= branch->merge_nr)
+ return 0;
+ return ref_matches_abbrev(branch->merge[i]->src, refname);
+}
+
+static struct ref *get_expanded_map(struct ref *remote_refs,
+ const struct refspec *refspec)
+{
+ struct ref *ref;
+ 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) {
+ if (strchr(ref->name, '^'))
+ continue; /* a dereference item */
+ if (!prefixcmp(ref->name, refspec->src)) {
+ char *match;
+ struct ref *cpy = copy_ref(ref);
+ match = ref->name + remote_prefix_len;
+
+ cpy->peer_ref = alloc_ref(local_prefix_len +
+ strlen(match) + 1);
+ sprintf(cpy->peer_ref->name, "%s%s",
+ refspec->dst, match);
+ if (refspec->force)
+ cpy->peer_ref->force = 1;
+ *tail = cpy;
+ tail = &cpy->next;
+ }
+ }
+
+ return ret;
+}
+
+static struct ref *find_ref_by_name_abbrev(struct ref *refs, const char *name)
+{
+ struct ref *ref;
+ for (ref = refs; ref; ref = ref->next) {
+ if (ref_matches_abbrev(name, ref->name))
+ return ref;
+ }
+ return NULL;
+}
+
+struct ref *get_remote_ref(struct ref *remote_refs, const char *name)
+{
+ struct ref *ref = find_ref_by_name_abbrev(remote_refs, name);
+
+ if (!ref)
+ return NULL;
+
+ return copy_ref(ref);
+}
+
+static struct ref *get_local_ref(const char *name)
+{
+ struct ref *ret;
+ if (!name)
+ return NULL;
+
+ if (!prefixcmp(name, "refs/")) {
+ ret = alloc_ref(strlen(name) + 1);
+ strcpy(ret->name, name);
+ return ret;
+ }
+
+ if (!prefixcmp(name, "heads/") ||
+ !prefixcmp(name, "tags/") ||
+ !prefixcmp(name, "remotes/")) {
+ ret = alloc_ref(strlen(name) + 6);
+ sprintf(ret->name, "refs/%s", name);
+ return ret;
+ }
+
+ ret = alloc_ref(strlen(name) + 12);
+ sprintf(ret->name, "refs/heads/%s", name);
+ return ret;
+}
+
+int get_fetch_map(struct ref *remote_refs,
+ const struct refspec *refspec,
+ struct ref ***tail,
+ int missing_ok)
+{
+ struct ref *ref_map, *rm;
+
+ if (refspec->pattern) {
+ ref_map = get_expanded_map(remote_refs, refspec);
+ } else {
+ const char *name = refspec->src[0] ? refspec->src : "HEAD";
+
+ ref_map = get_remote_ref(remote_refs, name);
+ if (!missing_ok && !ref_map)
+ 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)
+ ref_map->peer_ref->force = 1;
+ }
+ }
+
+ for (rm = ref_map; rm; rm = rm->next) {
+ if (rm->peer_ref && check_ref_format(rm->peer_ref->name + 5))
+ die("* refusing to create funny ref '%s' locally",
+ rm->peer_ref->name);
+ }
+
+ if (ref_map)
+ tail_link_ref(ref_map, tail);
+
+ return 0;
+}