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authorJunio C Hamano <gitster@pobox.com>2012-03-30 23:07:12 (GMT)
committerJunio C Hamano <gitster@pobox.com>2012-04-05 20:35:57 (GMT)
commit135dadef712f0c4cf884940e751024c831937904 (patch)
tree84572dd70ab3621c74df5a172b332469c2c77c1a
parentd365a432271d2f6384cda9c37fb2fe463bdc2850 (diff)
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push: error out when the "upstream" semantics does not make sense
The user can say "git push" without specifying any refspec. When using the "upstream" semantics via the push.default configuration, the user wants to update the "upstream" branch of the current branch, which is the branch at a remote repository the current branch is set to integrate with, with this command. However, there are cases that such a "git push" that uses the "upstream" semantics does not make sense: - The current branch does not have branch.$name.remote configured. By definition, "git push" that does not name where to push to will not know where to push to. The user may explicitly say "git push $there", but again, by definition, no branch at repository $there is set to integrate with the current branch in this case and we wouldn't know which remote branch to update. - The current branch does have branch.$name.remote configured, but it does not specify branch.$name.merge that names what branch at the remote this branch integrates with. "git push" knows where to push in this case (or the user may explicitly say "git push $remote" to tell us where to push), but we do not know which remote branch to update. - The current branch does have its remote and upstream branch configured, but the user said "git push $there", where $there is not the remote named by "branch.$name.remote". By definition, no branch at repository $there is set to integrate with the current branch in this case, and this push is not meant to update any branch at the remote repository $there. The first two cases were already checked correctly, but the third case was not checked and we ended up updating the branch named branch.$name.merge at repository $there, which was totally bogus. Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin/push.c26
-rwxr-xr-xt/t5528-push-default.sh54
2 files changed, 72 insertions, 8 deletions
diff --git a/builtin/push.c b/builtin/push.c
index d315475..b6c0fee 100644
--- a/builtin/push.c
+++ b/builtin/push.c
@@ -65,6 +65,16 @@ static void set_refspecs(const char **refs, int nr)
}
}
+static int push_url_of_remote(struct remote *remote, const char ***url_p)
+{
+ if (remote->pushurl_nr) {
+ *url_p = remote->pushurl;
+ return remote->pushurl_nr;
+ }
+ *url_p = remote->url;
+ return remote->url_nr;
+}
+
static void setup_push_upstream(struct remote *remote)
{
struct strbuf refspec = STRBUF_INIT;
@@ -76,7 +86,7 @@ static void setup_push_upstream(struct remote *remote)
"\n"
" git push %s HEAD:<name-of-remote-branch>\n"),
remote->name);
- if (!branch->merge_nr || !branch->merge)
+ if (!branch->merge_nr || !branch->merge || !branch->remote_name)
die(_("The current branch %s has no upstream branch.\n"
"To push the current branch and set the remote as upstream, use\n"
"\n"
@@ -87,6 +97,12 @@ static void setup_push_upstream(struct remote *remote)
if (branch->merge_nr != 1)
die(_("The current branch %s has multiple upstream branches, "
"refusing to push."), branch->name);
+ if (strcmp(branch->remote_name, remote->name))
+ die(_("You are pushing to remote '%s', which is not the upstream of\n"
+ "your current branch '%s', without telling me what to push\n"
+ "to update which remote branch."),
+ remote->name, branch->name);
+
strbuf_addf(&refspec, "%s:%s", branch->name, branch->merge[0]->src);
add_refspec(refspec.buf);
}
@@ -196,13 +212,7 @@ static int do_push(const char *repo, int flags)
setup_default_push_refspecs(remote);
}
errs = 0;
- if (remote->pushurl_nr) {
- url = remote->pushurl;
- url_nr = remote->pushurl_nr;
- } else {
- url = remote->url;
- url_nr = remote->url_nr;
- }
+ url_nr = push_url_of_remote(remote, &url);
if (url_nr) {
for (i = 0; i < url_nr; i++) {
struct transport *transport =
diff --git a/t/t5528-push-default.sh b/t/t5528-push-default.sh
new file mode 100755
index 0000000..c334c51
--- /dev/null
+++ b/t/t5528-push-default.sh
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+test_description='check various push.default settings'
+. ./test-lib.sh
+
+test_expect_success 'setup bare remotes' '
+ git init --bare repo1 &&
+ git remote add parent1 repo1 &&
+ git init --bare repo2 &&
+ git remote add parent2 repo2 &&
+ test_commit one &&
+ git push parent1 HEAD &&
+ git push parent2 HEAD
+'
+
+test_expect_success '"upstream" pushes to configured upstream' '
+ git checkout master &&
+ test_config branch.master.remote parent1 &&
+ test_config branch.master.merge refs/heads/foo &&
+ test_config push.default upstream &&
+ test_commit two &&
+ git push &&
+ echo two >expect &&
+ git --git-dir=repo1 log -1 --format=%s foo >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success '"upstream" does not push on unconfigured remote' '
+ git checkout master &&
+ test_unconfig branch.master.remote &&
+ test_config push.default upstream &&
+ test_commit three &&
+ test_must_fail git push
+'
+
+test_expect_success '"upstream" does not push on unconfigured branch' '
+ git checkout master &&
+ test_config branch.master.remote parent1 &&
+ test_unconfig branch.master.merge &&
+ test_config push.default upstream
+ test_commit four &&
+ test_must_fail git push
+'
+
+test_expect_success '"upstream" does not push when remotes do not match' '
+ git checkout master &&
+ test_config branch.master.remote parent1 &&
+ test_config branch.master.merge refs/heads/foo &&
+ test_config push.default upstream &&
+ test_commit five &&
+ test_must_fail git push parent2
+'
+
+test_done