#include "dir.h"
#include "tag.h"
#include "string-list.h"
+#include "mergesort.h"
+
+enum map_direction { FROM_SRC, FROM_DST };
static struct refspec s_tag_refspec = {
0,
1,
0,
+ 0,
"refs/tags/*",
"refs/tags/*"
};
static struct branch *current_branch;
static const char *default_remote_name;
+static const char *pushremote_name;
static int explicit_default_remote_name;
static struct rewrites rewrites;
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 (git_config_string(&branch->remote_name, key, value))
+ return -1;
if (branch == current_branch) {
default_remote_name = branch->remote_name;
explicit_default_remote_name = 1;
}
+ } else if (!strcmp(subkey, ".pushremote")) {
+ if (branch == current_branch)
+ if (git_config_string(&pushremote_name, key, value))
+ return -1;
} else if (!strcmp(subkey, ".merge")) {
if (!value)
return config_error_nonbool(key);
add_instead_of(rewrite, xstrdup(value));
}
}
+
if (prefixcmp(key, "remote."))
return 0;
name = key + 7;
+
+ /* Handle remote.* variables */
+ if (!strcmp(name, "pushdefault"))
+ return git_config_string(&pushremote_name, key, value);
+
+ /* Handle remote.<name>.* variables */
if (*name == '/') {
warning("Config remote shorthand cannot begin with '/': %s",
name);
return;
default_remote_name = xstrdup("origin");
current_branch = NULL;
- head_ref = resolve_ref("HEAD", sha1, 0, &flag);
+ head_ref = resolve_ref_unsafe("HEAD", sha1, 0, &flag);
if (head_ref && (flag & REF_ISSYMREF) &&
!prefixcmp(head_ref, "refs/heads/")) {
current_branch =
/*
* Before going on, special case ":" (or "+:") as a refspec
- * for matching refs.
+ * for pushing matching refs.
*/
if (!fetch && rhs == lhs && rhs[1] == '\0') {
rs[i].matching = 1;
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.
- */
+ unsigned char unused[40];
+
+ /* LHS */
if (!*rs[i].src)
- ; /* empty is ok */
- else if (check_refname_format(rs[i].src, flags))
+ ; /* empty is ok; it means "HEAD" */
+ else if (llen == 40 && !get_sha1_hex(rs[i].src, unused))
+ rs[i].exact_sha1 = 1; /* ok */
+ else if (!check_refname_format(rs[i].src, flags))
+ ; /* valid looking ref is ok */
+ else
goto invalid;
- /*
- * RHS
- * - missing is ok, and is same as empty.
- * - empty is ok; it means not to store.
- * - otherwise it must be a valid looking ref.
- */
+ /* RHS */
if (!rs[i].dst)
- ; /* ok */
+ ; /* missing is ok; it is the same as empty */
else if (!*rs[i].dst)
- ; /* ok */
- else if (check_refname_format(rs[i].dst, flags))
+ ; /* empty is ok; it means "do not store" */
+ else if (!check_refname_format(rs[i].dst, flags))
+ ; /* valid looking ref is ok */
+ else
goto invalid;
} else {
/*
return !strchr(name, '/'); /* no slash */
}
-struct remote *remote_get(const char *name)
+static struct remote *remote_get_1(const char *name, const char *pushremote_name)
{
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;
+ if (pushremote_name) {
+ name = pushremote_name;
+ name_given = 1;
+ } else {
+ name = default_remote_name;
+ name_given = explicit_default_remote_name;
+ }
}
ret = make_remote(name, 0);
return ret;
}
+struct remote *remote_get(const char *name)
+{
+ read_config();
+ return remote_get_1(name, NULL);
+}
+
+struct remote *pushremote_get(const char *name)
+{
+ read_config();
+ return remote_get_1(name, pushremote_name);
+}
+
int remote_is_configured(const char *name)
{
int i;
}
}
+int ref_compare_name(const void *va, const void *vb)
+{
+ const struct ref *a = va, *b = vb;
+ return strcmp(a->name, b->name);
+}
+
+static void *ref_list_get_next(const void *a)
+{
+ return ((const struct ref *)a)->next;
+}
+
+static void ref_list_set_next(void *a, void *next)
+{
+ ((struct ref *)a)->next = next;
+}
+
+void sort_ref_list(struct ref **l, int (*cmp)(const void *, const void *))
+{
+ *l = llist_mergesort(*l, ref_list_get_next, ref_list_set_next, cmp);
+}
+
static int count_refspec_match(const char *pattern,
struct ref *refs,
struct ref **matched_ref)
*tail = &ref->next;
}
+static struct ref *alloc_delete_ref(void)
+{
+ struct ref *ref = alloc_ref("(delete)");
+ hashclr(ref->new_sha1);
+ return ref;
+}
+
static struct ref *try_explicit_object_name(const char *name)
{
unsigned char sha1[20];
struct ref *ref;
- if (!*name) {
- ref = alloc_ref("(delete)");
- hashclr(ref->new_sha1);
- return ref;
- }
+ if (!*name)
+ return alloc_delete_ref();
if (get_sha1(name, sha1))
return NULL;
ref = alloc_ref(name);
struct strbuf buf = STRBUF_INIT;
unsigned char sha1[20];
- const char *r = resolve_ref(peer->name, sha1, 1, NULL);
+ const char *r = resolve_ref_unsafe(peer->name, sha1, 1, NULL);
if (!r)
return NULL;
unsigned char sha1[20];
int flag;
- dst_value = resolve_ref(matched_src->name, sha1, 1, &flag);
+ dst_value = resolve_ref_unsafe(matched_src->name, sha1, 1, &flag);
if (!dst_value ||
((flag & REF_ISSYMREF) &&
prefixcmp(dst_value, "refs/heads/")))
case 0:
if (!memcmp(dst_value, "refs/", 5))
matched_dst = make_linked_ref(dst_value, dst_tail);
+ else if (is_null_sha1(matched_src->new_sha1))
+ error("unable to delete '%s': remote ref does not exist",
+ dst_value);
else if ((dst_guess = guess_ref(dst_value, matched_src)))
matched_dst = make_linked_ref(dst_guess, dst_tail);
else
return errs;
}
-static const struct refspec *check_pattern_match(const struct refspec *rs,
- int rs_nr,
- const struct ref *src)
+static char *get_ref_match(const struct refspec *rs, int rs_nr, const struct ref *ref,
+ int send_mirror, int direction, const struct refspec **ret_pat)
{
+ const struct refspec *pat;
+ char *name;
int i;
int matching_refs = -1;
for (i = 0; i < rs_nr; i++) {
continue;
}
- if (rs[i].pattern && match_name_with_pattern(rs[i].src, src->name,
- NULL, NULL))
- return rs + i;
+ if (rs[i].pattern) {
+ const char *dst_side = rs[i].dst ? rs[i].dst : rs[i].src;
+ int match;
+ if (direction == FROM_SRC)
+ match = match_name_with_pattern(rs[i].src, ref->name, dst_side, &name);
+ else
+ match = match_name_with_pattern(dst_side, ref->name, rs[i].src, &name);
+ if (match) {
+ matching_refs = i;
+ break;
+ }
+ }
}
- if (matching_refs != -1)
- return rs + matching_refs;
- else
+ if (matching_refs == -1)
return NULL;
+
+ pat = rs + matching_refs;
+ if (pat->matching) {
+ /*
+ * "matching refs"; traditionally we pushed everything
+ * including refs outside refs/heads/ hierarchy, but
+ * that does not make much sense these days.
+ */
+ if (!send_mirror && prefixcmp(ref->name, "refs/heads/"))
+ return NULL;
+ name = xstrdup(ref->name);
+ }
+ if (ret_pat)
+ *ret_pat = pat;
+ return name;
}
static struct ref **tail_ref(struct ref **head)
return tail;
}
+struct tips {
+ struct commit **tip;
+ int nr, alloc;
+};
+
+static void add_to_tips(struct tips *tips, const unsigned char *sha1)
+{
+ struct commit *commit;
+
+ if (is_null_sha1(sha1))
+ return;
+ commit = lookup_commit_reference_gently(sha1, 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_sha1(ref->peer_ref->new_sha1))
+ add_to_tips(&sent_tips, ref->peer_ref->new_sha1);
+ else
+ add_to_tips(&sent_tips, ref->old_sha1);
+ if (!prefixcmp(ref->name, "refs/tags/"))
+ string_list_append(&dst_tag, ref->name);
+ }
+ clear_commit_marks_many(sent_tips.nr, sent_tips.tip, TMP_MARK);
+
+ sort_string_list(&dst_tag);
+
+ /* Collect tags they do not have. */
+ for (ref = src; ref; ref = ref->next) {
+ if (prefixcmp(ref->name, "refs/tags/"))
+ continue; /* not a tag */
+ if (string_list_has_string(&dst_tag, ref->name))
+ continue; /* they already have it */
+ if (sha1_object_info(ref->new_sha1, NULL) != OBJ_TAG)
+ continue; /* be conservative */
+ item = string_list_append(&src_tag, ref->name);
+ item->util = ref;
+ }
+ string_list_clear(&dst_tag, 0);
+
+ /*
+ * At this point, src_tag lists tags that are missing from
+ * dst, and sent_tips lists the tips we are pushing or those
+ * that we know they already have. An element in the src_tag
+ * that is an ancestor of any of the sent_tips needs to be
+ * sent to the other side.
+ */
+ if (sent_tips.nr) {
+ for_each_string_list_item(item, &src_tag) {
+ struct ref *ref = item->util;
+ struct ref *dst_ref;
+ struct commit *commit;
+
+ if (is_null_sha1(ref->new_sha1))
+ continue;
+ commit = lookup_commit_reference_gently(ref->new_sha1, 1);
+ if (!commit)
+ /* not pushing a commit, which is not an error */
+ continue;
+
+ /*
+ * Is this tag, which they do not have, reachable from
+ * any of the commits we are sending?
+ */
+ if (!in_merge_bases_many(commit, sent_tips.nr, sent_tips.tip))
+ continue;
+
+ /* Add it in */
+ dst_ref = make_linked_ref(ref->name, dst_tail);
+ hashcpy(dst_ref->new_sha1, ref->new_sha1);
+ dst_ref->peer_ref = copy_ref(ref);
+ }
+ }
+ string_list_clear(&src_tag, 0);
+ free(sent_tips.tip);
+}
+
/*
* Given the set of refs the local repository has, the set of refs the
* remote repository has, and the refspec used for push, determine
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 **dst_tail = tail_ref(dst);
+ struct ref *ref, **dst_tail = tail_ref(dst);
if (!nr_refspec) {
nr_refspec = 1;
errs = match_explicit_refs(src, *dst, &dst_tail, rs, nr_refspec);
/* pick the remainder */
- for ( ; src; src = src->next) {
+ for (ref = src; ref; ref = ref->next) {
struct ref *dst_peer;
const struct refspec *pat = NULL;
char *dst_name;
- if (src->peer_ref)
- continue;
- pat = check_pattern_match(rs, nr_refspec, src);
- if (!pat)
+ dst_name = get_ref_match(rs, nr_refspec, ref, send_mirror, FROM_SRC, &pat);
+ if (!dst_name)
continue;
- if (pat->matching) {
- /*
- * "matching refs"; traditionally we pushed everything
- * including refs outside refs/heads/ hierarchy, but
- * that does not make much sense these days.
- */
- if (!send_mirror && prefixcmp(src->name, "refs/heads/"))
- continue;
- dst_name = xstrdup(src->name);
-
- } else {
- const char *dst_side = pat->dst ? pat->dst : pat->src;
- if (!match_name_with_pattern(pat->src, src->name,
- dst_side, &dst_name))
- die("Didn't think it matches any more");
- }
dst_peer = find_ref_by_name(*dst, dst_name);
if (dst_peer) {
if (dst_peer->peer_ref)
/* We're already sending something to this ref. */
goto free_name;
-
} else {
if (pat->matching && !(send_all || send_mirror))
/*
/* Create a new one and link it */
dst_peer = make_linked_ref(dst_name, &dst_tail);
- hashcpy(dst_peer->new_sha1, src->new_sha1);
+ hashcpy(dst_peer->new_sha1, ref->new_sha1);
}
- dst_peer->peer_ref = copy_ref(src);
+ dst_peer->peer_ref = copy_ref(ref);
dst_peer->force = pat->force;
free_name:
free(dst_name);
}
+
+ if (flags & MATCH_REFS_FOLLOW_TAGS)
+ add_missing_tags(src, dst, &dst_tail);
+
+ if (send_prune) {
+ /* check for missing refs on the remote */
+ for (ref = *dst; ref; ref = ref->next) {
+ char *src_name;
+
+ if (ref->peer_ref)
+ /* We're already sending something to this ref. */
+ continue;
+
+ src_name = get_ref_match(rs, nr_refspec, ref, send_mirror, FROM_DST, NULL);
+ if (src_name) {
+ if (!find_ref_by_name(src, src_name))
+ ref->peer_ref = alloc_delete_ref();
+ free(src_name);
+ }
+ }
+ }
if (errs)
return -1;
return 0;
struct ref *ref;
for (ref = remote_refs; ref; ref = ref->next) {
+ int force_ref_update = ref->force || force_update;
+
if (ref->peer_ref)
hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
else if (!send_mirror)
continue;
}
- /* This part determines what can overwrite what.
- * The rules are:
- *
- * (0) you can always use --force or +A:B notation to
- * selectively force individual ref pairs.
+ /*
+ * 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 (ref->nonfastforward && !ref->force && !force_update) {
- ref->status = REF_STATUS_REJECT_NONFASTFORWARD;
- continue;
+ if (!ref->deletion && !is_null_sha1(ref->old_sha1)) {
+ int why = 0; /* why would this push require --force? */
+
+ if (!prefixcmp(ref->name, "refs/tags/"))
+ why = REF_STATUS_REJECT_ALREADY_EXISTS;
+ else if (!has_sha1_file(ref->old_sha1))
+ why = REF_STATUS_REJECT_FETCH_FIRST;
+ else if (!lookup_commit_reference_gently(ref->old_sha1, 1) ||
+ !lookup_commit_reference_gently(ref->new_sha1, 1))
+ why = REF_STATUS_REJECT_NEEDS_FORCE;
+ else if (!ref_newer(ref->new_sha1, ref->old_sha1))
+ why = REF_STATUS_REJECT_NONFASTFORWARD;
+
+ if (!force_ref_update)
+ ref->status = why;
+ else if (why)
+ ref->forced_update = 1;
}
}
}
return refname_match(branch->merge[i]->src, refname, ref_fetch_rules);
}
+static int ignore_symref_update(const char *refname)
+{
+ unsigned char sha1[20];
+ int flag;
+
+ if (!resolve_ref_unsafe(refname, sha1, 0, &flag))
+ return 0; /* non-existing refs are OK */
+ return (flag & REF_ISSYMREF);
+}
+
static struct ref *get_expanded_map(const struct ref *remote_refs,
const struct refspec *refspec)
{
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);
} 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_sha1_hex(name, ref_map->old_sha1);
+ } else {
+ ref_map = get_remote_ref(remote_refs, name);
+ }
if (!missing_ok && !ref_map)
die("Couldn't find remote ref %s", name);
if (ref_map) {
for (rmp = &ref_map; *rmp; ) {
if ((*rmp)->peer_ref) {
- if (check_refname_format((*rmp)->peer_ref->name + 5,
- REFNAME_ALLOW_ONELEVEL)) {
+ if (prefixcmp((*rmp)->peer_ref->name, "refs/") ||
+ check_refname_format((*rmp)->peer_ref->name, 0)) {
struct ref *ignore = *rmp;
error("* Ignoring funny ref '%s' locally",
(*rmp)->peer_ref->name);
struct commit_list *list, *used;
int found = 0;
- /* Both new and old must be commit-ish and new is descendant of
+ /*
+ * 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);
* nothing to report.
*/
base = branch->merge[0]->dst;
- if (!resolve_ref(base, sha1, 1, NULL))
+ if (read_ref(base, sha1))
return 0;
theirs = lookup_commit_reference(sha1);
if (!theirs)
return 0;
- if (!resolve_ref(branch->refname, sha1, 1, NULL))
+ if (read_ref(branch->refname, sha1))
return 0;
ours = lookup_commit_reference(sha1);
if (!ours)
base = branch->merge[0]->dst;
base = shorten_unambiguous_ref(base, 0);
- if (!num_theirs)
- strbuf_addf(sb, "Your branch is ahead of '%s' "
- "by %d commit%s.\n",
- base, num_ours, (num_ours == 1) ? "" : "s");
- else if (!num_ours)
- strbuf_addf(sb, "Your branch is behind '%s' "
- "by %d commit%s, "
- "and can be fast-forwarded.\n",
- base, num_theirs, (num_theirs == 1) ? "" : "s");
- else
- strbuf_addf(sb, "Your branch and '%s' have diverged,\n"
- "and have %d and %d different commit(s) each, "
- "respectively.\n",
- base, num_ours, num_theirs);
+ if (!num_theirs) {
+ strbuf_addf(sb,
+ Q_("Your branch is ahead of '%s' by %d commit.\n",
+ "Your branch is ahead of '%s' by %d commits.\n",
+ num_ours),
+ base, num_ours);
+ if (advice_status_hints)
+ strbuf_addf(sb,
+ _(" (use \"git push\" to publish your local commits)\n"));
+ } else if (!num_ours) {
+ strbuf_addf(sb,
+ Q_("Your branch is behind '%s' by %d commit, "
+ "and can be fast-forwarded.\n",
+ "Your branch is behind '%s' by %d commits, "
+ "and can be fast-forwarded.\n",
+ num_theirs),
+ base, num_theirs);
+ if (advice_status_hints)
+ strbuf_addf(sb,
+ _(" (use \"git pull\" to update your local branch)\n"));
+ } else {
+ strbuf_addf(sb,
+ Q_("Your branch and '%s' have diverged,\n"
+ "and have %d and %d different commit each, "
+ "respectively.\n",
+ "Your branch and '%s' have diverged,\n"
+ "and have %d and %d different commits each, "
+ "respectively.\n",
+ num_theirs),
+ base, num_ours, num_theirs);
+ if (advice_status_hints)
+ strbuf_addf(sb,
+ _(" (use \"git pull\" to merge the remote branch into yours)\n"));
+ }
return 1;
}