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]);
}
ret = xcalloc(1, sizeof(struct remote));
+ ret->prune = -1; /* unspecified */
ALLOC_GROW(remotes, remotes_nr + 1, remotes_alloc);
remotes[remotes_nr++] = ret;
if (len)
int value_list;
char *s, *p;
- if (!prefixcmp(buffer, "URL:")) {
+ if (starts_with(buffer, "URL:")) {
value_list = 0;
s = buffer + 4;
- } else if (!prefixcmp(buffer, "Push:")) {
+ } else if (starts_with(buffer, "Push:")) {
value_list = 1;
s = buffer + 5;
- } else if (!prefixcmp(buffer, "Pull:")) {
+ } else if (starts_with(buffer, "Pull:")) {
value_list = 2;
s = buffer + 5;
} else
const char *subkey;
struct remote *remote;
struct branch *branch;
- if (!prefixcmp(key, "branch.")) {
+ if (starts_with(key, "branch.")) {
name = key + 7;
subkey = strrchr(name, '.');
if (!subkey)
}
return 0;
}
- if (!prefixcmp(key, "url.")) {
+ if (starts_with(key, "url.")) {
struct rewrite *rewrite;
name = key + 4;
subkey = strrchr(name, '.');
}
}
- if (prefixcmp(key, "remote."))
+ if (!starts_with(key, "remote."))
return 0;
name = key + 7;
remote->skip_default_update = git_config_bool(key, value);
else if (!strcmp(subkey, ".skipfetchall"))
remote->skip_default_update = git_config_bool(key, value);
+ else if (!strcmp(subkey, ".prune"))
+ remote->prune = git_config_bool(key, value);
else if (!strcmp(subkey, ".url")) {
const char *v;
if (git_config_string(&v, key, value))
int flag;
if (default_remote_name) /* did this already */
return;
- default_remote_name = xstrdup("origin");
+ default_remote_name = "origin";
current_branch = NULL;
head_ref = resolve_ref_unsafe("HEAD", sha1, 0, &flag);
if (head_ref && (flag & REF_ISSYMREF) &&
- !prefixcmp(head_ref, "refs/heads/")) {
+ starts_with(head_ref, "refs/heads/")) {
current_branch =
make_branch(head_ref + strlen("refs/heads/"), 0);
}
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.
+ */
+ die(_("Internal error"));
+ }
+ }
+ free(ref2->peer_ref);
+ free(ref2);
+}
+
+struct ref *ref_remove_duplicates(struct ref *ref_map)
{
struct string_list refs = STRING_LIST_INIT_NODUP;
- struct 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)
return ret;
}
-static int query_refspecs(struct refspec *refs, int ref_count, struct refspec *query)
+int query_refspecs(struct refspec *refs, int ref_count, struct refspec *query)
{
int i;
int find_src = !query->src;
+ const char *needle = find_src ? query->dst : query->src;
+ char **result = find_src ? &query->src : &query->dst;
if (find_src && !query->dst)
return error("query_refspecs: need either src or dst");
struct refspec *refspec = &refs[i];
const char *key = find_src ? refspec->dst : refspec->src;
const char *value = find_src ? refspec->src : refspec->dst;
- const char *needle = find_src ? query->dst : query->src;
- char **result = find_src ? &query->src : &query->dst;
if (!refspec->dst)
continue;
*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)
+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 (!r)
return NULL;
- if (!prefixcmp(r, "refs/heads/"))
+ if (starts_with(r, "refs/heads/"))
strbuf_addstr(&buf, "refs/heads/");
- else if (!prefixcmp(r, "refs/tags/"))
+ else if (starts_with(r, "refs/tags/"))
strbuf_addstr(&buf, "refs/tags/");
else
return NULL;
return strbuf_detach(&buf, NULL);
}
+static int match_explicit_lhs(struct ref *src,
+ struct refspec *rs,
+ struct ref **match,
+ int *allocated_match)
+{
+ switch (count_refspec_match(rs->src, src, match)) {
+ case 1:
+ *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.
+ */
+ *match = try_explicit_object_name(rs->src);
+ if (!*match)
+ return error("src refspec %s does not match any.", rs->src);
+ *allocated_match = 1;
+ return 0;
+ default:
+ return error("src refspec %s matches more than one.", rs->src);
+ }
+}
+
static int match_explicit(struct ref *src, struct ref *dst,
struct ref ***dst_tail,
struct refspec *rs)
{
struct ref *matched_src, *matched_dst;
- int copy_src;
+ int allocated_src;
const char *dst_value = rs->dst;
char *dst_guess;
return 0;
matched_src = matched_dst = NULL;
- switch (count_refspec_match(rs->src, src, &matched_src)) {
- case 1:
- copy_src = 1;
- break;
- case 0:
- /* The source could be in the get_sha1() format
- * 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;
- default:
- return error("src refspec %s matches more than one.", rs->src);
- }
+ if (match_explicit_lhs(src, rs, &matched_src, &allocated_src) < 0)
+ return -1;
if (!dst_value) {
unsigned char sha1[20];
dst_value = resolve_ref_unsafe(matched_src->name, sha1, 1, &flag);
if (!dst_value ||
((flag & REF_ISSYMREF) &&
- prefixcmp(dst_value, "refs/heads/")))
+ !starts_with(dst_value, "refs/heads/")))
die("%s cannot be resolved to branch.",
matched_src->name);
}
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;
* 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);
}
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/"))
+ 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);
/* Collect tags they do not have. */
for (ref = src; ref; ref = ref->next) {
- if (prefixcmp(ref->name, "refs/tags/"))
+ 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 */
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)
}
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);
}
/*
+ * Bypass the usual "must fast-forward" check but
+ * replace it with a weaker "the old value must be
+ * this value we observed". 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 (ref->expect_old_no_trackback ||
+ hashcmp(ref->old_sha1, ref->old_sha1_expect))
+ reject_reason = REF_STATUS_REJECT_STALE;
+ }
+
+ /*
+ * The usual "must fast-forward" rules.
+ *
* Decide whether an individual refspec A:B can be
* pushed. The push will succeed if any of the
* following are true:
* passing the --force argument
*/
- 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 (!ref->deletion && !is_null_sha1(ref->old_sha1)) {
+ if (starts_with(ref->name, "refs/tags/"))
+ reject_reason = REF_STATUS_REJECT_ALREADY_EXISTS;
else if (!has_sha1_file(ref->old_sha1))
- why = REF_STATUS_REJECT_FETCH_FIRST;
+ reject_reason = 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;
+ reject_reason = 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;
+ 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 (!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);
}
static int ignore_symref_update(const char *refname)
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)
{
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,
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;
{
const struct ref *ref;
for (ref = refs; ref; ref = ref->next) {
- if (refname_match(name, ref->name, ref_fetch_rules))
+ if (refname_match(name, ref->name))
return ref;
}
return NULL;
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);
for (rmp = &ref_map; *rmp; ) {
if ((*rmp)->peer_ref) {
- if (prefixcmp((*rmp)->peer_ref->name, "refs/") ||
+ 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",
}
/*
- * Return true if there is anything to report, otherwise false.
+ * Compare a branch with its upstream, and save their differences (number
+ * of commits) in *num_ours and *num_theirs.
+ *
+ * Return 0 if branch has no upstream (no base), -1 if upstream is missing
+ * (with "gone" base), otherwise 1 (with base).
*/
int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs)
{
const char *rev_argv[10], *base;
int rev_argc;
- /*
- * Nothing to report unless we are marked to build on top of
- * somebody else.
- */
+ /* Cannot stat 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.
- */
+ /* Cannot stat if what we used to build on no longer exists */
base = branch->merge[0]->dst;
if (read_ref(base, sha1))
- return 0;
+ return -1;
theirs = lookup_commit_reference(sha1);
if (!theirs)
- return 0;
+ return -1;
if (read_ref(branch->refname, sha1))
- return 0;
+ return -1;
ours = lookup_commit_reference(sha1);
if (!ours)
- return 0;
+ return -1;
/* are we the same? */
- if (theirs == ours)
- return 0;
+ if (theirs == ours) {
+ *num_theirs = *num_ours = 0;
+ return 1;
+ }
/* Run "rev-list --left-right ours...theirs" internally... */
rev_argc = 0;
*/
int format_tracking_info(struct branch *branch, struct strbuf *sb)
{
- int num_ours, num_theirs;
+ int ours, theirs;
const char *base;
+ int upstream_is_gone = 0;
- if (!stat_tracking_info(branch, &num_ours, &num_theirs))
+ switch (stat_tracking_info(branch, &ours, &theirs)) {
+ case 0:
+ /* no base */
return 0;
+ case -1:
+ /* with "gone" base */
+ upstream_is_gone = 1;
+ break;
+ default:
+ /* with base */
+ break;
+ }
base = branch->merge[0]->dst;
base = shorten_unambiguous_ref(base, 0);
- if (!num_theirs) {
+ 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_addf(sb,
+ _(" (use \"git branch --unset-upstream\" to fixup)\n"));
+ } else if (!ours && !theirs) {
+ strbuf_addf(sb,
+ _("Your branch is up-to-date with '%s'.\n"),
+ base);
+ } else if (!theirs) {
strbuf_addf(sb,
Q_("Your branch is ahead of '%s' by %d commit.\n",
"Your branch is ahead of '%s' by %d commits.\n",
- num_ours),
- base, num_ours);
+ ours),
+ base, ours);
if (advice_status_hints)
strbuf_addf(sb,
_(" (use \"git push\" to publish your local commits)\n"));
- } else if (!num_ours) {
+ } 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);
+ theirs),
+ base, theirs);
if (advice_status_hints)
strbuf_addf(sb,
_(" (use \"git pull\" to update your local branch)\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);
+ theirs),
+ base, ours, theirs);
if (advice_status_hints)
strbuf_addf(sb,
_(" (use \"git pull\" to merge the remote branch into yours)\n"));
/* Look for another ref that points there */
for (r = refs; r; r = r->next) {
if (r != head &&
- !prefixcmp(r->name, "refs/heads/") &&
+ starts_with(r->name, "refs/heads/") &&
!hashcmp(r->old_sha1, head->old_sha1)) {
*tail = copy_ref(r);
tail = &((*tail)->next);
string_list_clear(&ref_names, 0);
return stale_refs;
}
+
+/*
+ * Compare-and-swap
+ */
+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;
+}
+
+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 (get_sha1(colon + 1, entry->expect))
+ return error("cannot parse expected object name '%s'", colon + 1);
+ return 0;
+}
+
+int parseopt_push_cas_option(const struct option *opt, const char *arg, int unset)
+{
+ return parse_push_cas_option(opt->value, arg, unset);
+}
+
+int is_empty_cas(const struct push_cas_option *cas)
+{
+ return !cas->use_tracking_for_rest && !cas->nr;
+}
+
+/*
+ * Look at remote.fetch refspec and see if we have a remote
+ * tracking branch for the refname there. Fill its current
+ * value in sha1[].
+ * If we cannot do so, return negative to signal an error.
+ */
+static int remote_tracking(struct remote *remote, const char *refname,
+ unsigned char sha1[20])
+{
+ char *dst;
+
+ dst = apply_refspecs(remote->fetch, remote->fetch_refspec_nr, refname);
+ if (!dst)
+ return -1; /* no tracking ref for refname at remote */
+ if (read_ref(dst, sha1))
+ return -1; /* we know what the tracking ref is but we cannot read it */
+ return 0;
+}
+
+static void apply_cas(struct push_cas_option *cas,
+ struct remote *remote,
+ struct ref *ref)
+{
+ int i;
+
+ /* Find an explicit --<option>=<name>[:<value>] entry */
+ for (i = 0; i < cas->nr; i++) {
+ struct push_cas *entry = &cas->entry[i];
+ if (!refname_match(entry->refname, ref->name))
+ continue;
+ ref->expect_old_sha1 = 1;
+ if (!entry->use_tracking)
+ hashcpy(ref->old_sha1_expect, cas->entry[i].expect);
+ else if (remote_tracking(remote, ref->name, ref->old_sha1_expect))
+ ref->expect_old_no_trackback = 1;
+ 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_sha1_expect))
+ ref->expect_old_no_trackback = 1;
+}
+
+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);
+}