Since f2690487 (fetch: opportunistically update tracking refs,
2013-05-11), we stopped taking a non-storing refspec given on the
command line of "git fetch" literally, and instead started mapping
it via remote.$name.fetch refspecs. This allows
$ git fetch origin master
from the 'origin' repository, which is configured with
[remote "origin"]
fetch = +refs/heads/*:refs/remotes/origin/*
to update refs/remotes/origin/master with the result, as if the
command line were
$ git fetch origin +master:refs/remotes/origin/master
to reduce surprises and improve usability. Before that change, a
refspec on the command line without a colon was only to fetch the
history and leave the result in FETCH_HEAD, without updating the
remote-tracking branches.
When you are simulating a fetch from you by your mothership with a
push by you into your mothership, instead of having:
[remote "satellite"]
fetch = +refs/heads/*:refs/remotes/satellite/*
on the mothership repository and running:
mothership$ git fetch satellite
you would have:
[remote "mothership"]
push = +refs/heads/*:refs/remotes/satellite/*
on your satellite machine, and run:
satellite$ git push mothership
Because we so far did not make the corresponding change to the push
side, this command:
satellite$ git push mothership master
does _not_ allow you on the satellite to only push 'master' out but
still to the usual destination (i.e. refs/remotes/satellite/master).
Implement the logic to map an unqualified refspec given on the
command line via the remote.$name.push refspec. This will bring a
bit more symmetry between "fetch" and "push".
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
Documentation/git-push.txt | 9 +++++++--
builtin/push.c | 40 ++++++++++++++++++++++++++++++++++++++--
remote.c | 8 ++++----
remote.h | 2 ++
t/t5516-fetch-push.sh | 45 +++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 96 insertions(+), 8 deletions(-)
diff --git a/Documentation/git-push.txt b/Documentation/git-push.txt
index 9eec740..2b7f4f9 100644
--- a/Documentation/git-push.txt
+++ b/Documentation/git-push.txt
@@ -56,8 +56,13 @@ it can be any arbitrary "SHA-1 expression", such as `master~4` or
+
The <dst> tells which ref on the remote side is updated with this
push. Arbitrary expressions cannot be used here, an actual ref must
-be named. If `:`<dst> is omitted, the same ref as <src> will be
-updated.
+be named.
+If `git push [<repository>]` without any `<refspec>` argument is set to
+update some ref at the destination with `<src>` with
+`remote.<repository>.push` configuration variable, `:<dst>` part can
+be omitted---such a push will update a ref that `<src>` normally updates
+without any `<refspec>` on the command line. Otherwise, missing
+`:<dst>` means to update the same ref as the `<src>`.
+
The object referenced by <src> is used to update the <dst> reference
on the remote side. By default this is only allowed if <dst> is not
diff --git a/builtin/push.c b/builtin/push.c
index 76e4400..857f76d 100644
--- a/builtin/push.c
+++ b/builtin/push.c
@@ -35,9 +35,38 @@ static void add_refspec(const char *ref)
refspec[refspec_nr-1] = ref;
}
-static void set_refspecs(const char **refs, int nr)
+static const char *map_refspec(const char *ref,
+ struct remote *remote, struct ref *local_refs)
{
+ struct ref *matched = NULL;
+
+ /* Does "ref" uniquely name our ref? */
+ if (count_refspec_match(ref, local_refs, &matched) != 1)
+ return ref;
+
+ if (remote->push) {
+ struct refspec query;
+ memset(&query, 0, sizeof(struct refspec));
+ query.src = matched->name;
+ if (!query_refspecs(remote->push, remote->push_refspec_nr, &query) &&
+ query.dst) {
+ struct strbuf buf = STRBUF_INIT;
+ strbuf_addf(&buf, "%s%s:%s",
+ query.force ? "+" : "",
+ query.src, query.dst);
+ return strbuf_detach(&buf, NULL);
+ }
+ }
+
+ return ref;
+}
+
+static void set_refspecs(const char **refs, int nr, const char *repo)
+{
+ struct remote *remote = NULL;
+ struct ref *local_refs = NULL;
int i;
+
for (i = 0; i < nr; i++) {
const char *ref = refs[i];
if (!strcmp("tag", ref)) {
@@ -56,6 +85,13 @@ static void set_refspecs(const char **refs, int nr)
die(_("--delete only accepts plain target ref names"));
strbuf_addf(&delref, ":%s", ref);
ref = strbuf_detach(&delref, NULL);
+ } else if (!strchr(ref, ':')) {
+ if (!remote) {
+ /* lazily grab remote and local_refs */
+ remote = remote_get(repo);
+ local_refs = get_local_heads();
+ }
+ ref = map_refspec(ref, remote, local_refs);
}
add_refspec(ref);
}
@@ -487,7 +523,7 @@ int cmd_push(int argc, const char **argv, const char *prefix)
if (argc > 0) {
repo = argv[0];
- set_refspecs(argv + 1, argc - 1);
+ set_refspecs(argv + 1, argc - 1, repo);
}
rc = do_push(repo, flags);
diff --git a/remote.c b/remote.c
index 9f1a8aa..6ffa149 100644
--- a/remote.c
+++ b/remote.c
@@ -821,7 +821,7 @@ static int match_name_with_pattern(const char *key, const char *name,
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;
@@ -955,9 +955,9 @@ 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)
+int count_refspec_match(const char *pattern,
+ struct ref *refs,
+ struct ref **matched_ref)
{
int patlen = strlen(pattern);
struct ref *matched_weak = NULL;
diff --git a/remote.h b/remote.h
index 131130a..f7d43b4 100644
--- a/remote.h
+++ b/remote.h
@@ -128,6 +128,7 @@ struct ref *alloc_ref(const char *name);
struct ref *copy_ref(const struct ref *ref);
struct ref *copy_ref_list(const struct ref *ref);
void sort_ref_list(struct ref **, int (*cmp)(const void *, const void *));
+extern int count_refspec_match(const char *, struct ref *refs, struct ref **matched_ref);
int ref_compare_name(const void *, const void *);
int check_ref_type(const struct ref *ref, int flags);
@@ -158,6 +159,7 @@ struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec);
void free_refspec(int nr_refspec, struct refspec *refspec);
+extern int query_refspecs(struct refspec *specs, int nr, struct refspec *query);
char *apply_refspecs(struct refspec *refspecs, int nr_refspec,
const char *name);
diff --git a/t/t5516-fetch-push.sh b/t/t5516-fetch-push.sh
index 99c32d7..6d7f102 100755
--- a/t/t5516-fetch-push.sh
+++ b/t/t5516-fetch-push.sh
@@ -1126,6 +1126,51 @@ test_expect_success 'fetch follows tags by default' '
test_cmp expect actual
'
+test_expect_success 'pushing a specific ref applies remote.$name.push as refmap' '
+ mk_test testrepo heads/master &&
+ rm -fr src dst &&
+ git init src &&
+ git init --bare dst &&
+ (
+ cd src &&
+ git pull ../testrepo master &&
+ git branch next &&
+ git config remote.dst.url ../dst &&
+ git config remote.dst.push "+refs/heads/*:refs/remotes/src/*" &&
+ git push dst master &&
+ git show-ref refs/heads/master |
+ sed -e "s|refs/heads/|refs/remotes/src/|" >../dst/expect
+ ) &&
+ (
+ cd dst &&
+ test_must_fail git show-ref refs/heads/next &&
+ test_must_fail git show-ref refs/heads/master &&
+ git show-ref refs/remotes/src/master >actual
+ ) &&
+ test_cmp dst/expect dst/actual
+'
+
+test_expect_success 'with no remote.$name.push, it is not used as refmap' '
+ mk_test testrepo heads/master &&
+ rm -fr src dst &&
+ git init src &&
+ git init --bare dst &&
+ (
+ cd src &&
+ git pull ../testrepo master &&
+ git branch next &&
+ git config remote.dst.url ../dst &&
+ git push dst master &&
+ git show-ref refs/heads/master >../dst/expect
+ ) &&
+ (
+ cd dst &&
+ test_must_fail git show-ref refs/heads/next &&
+ git show-ref refs/heads/master >actual
+ ) &&
+ test_cmp dst/expect dst/actual
+'
+
test_expect_success 'push does not follow tags by default' '
mk_test testrepo heads/master &&
rm -fr src dst &&
--
1.8.5.1-402-gdd8f092
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