Merge branch 'ah/no-verify-signature-with-pull-rebase'

"git pull --rebase --verify-signature" learned to warn the user
that "--verify-signature" is a no-op when rebasing.

* ah/no-verify-signature-with-pull-rebase:
  pull: warn on --verify-signatures with --rebase

builtin/pull.c

@@ -815,6 +815,9 @@ static int run_rebase(const unsigned char *curr_head,
 		argv_array_push(&args, "--no-autostash");
 	else if (opt_autostash == 1)
 		argv_array_push(&args, "--autostash");
+	if (opt_verify_signatures &&
+	    !strcmp(opt_verify_signatures, "--verify-signatures"))
+		warning(_("ignoring --verify-signatures for rebase"));
 
 	argv_array_push(&args, "--onto");
 	argv_array_push(&args, sha1_to_hex(merge_head));

t/t5520-pull.sh

@@ -341,6 +341,22 @@ test_expect_success 'branch.to-rebase.rebase should override pull.rebase' '
 	test new = "$(git show HEAD:file2)"
 '
 
+test_expect_success "pull --rebase warns on --verify-signatures" '
+	git reset --hard before-rebase &&
+	git pull --rebase --verify-signatures . copy 2>err &&
+	test "$(git rev-parse HEAD^)" = "$(git rev-parse copy)" &&
+	test new = "$(git show HEAD:file2)" &&
+	test_i18ngrep "ignoring --verify-signatures for rebase" err
+'
+
+test_expect_success "pull --rebase does not warn on --no-verify-signatures" '
+	git reset --hard before-rebase &&
+	git pull --rebase --no-verify-signatures . copy 2>err &&
+	test "$(git rev-parse HEAD^)" = "$(git rev-parse copy)" &&
+	test new = "$(git show HEAD:file2)" &&
+	test_i18ngrep ! "verify-signatures" err
+'
+
 # add a feature branch, keep-merge, that is merged into master, so the
 # test can try preserving the merge commit (or not) with various
 # --rebase flags/pull.rebase settings.