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-rwxr-xr-xthird_party/git/t/t5582-fetch-negative-refspec.sh189
1 files changed, 189 insertions, 0 deletions
diff --git a/third_party/git/t/t5582-fetch-negative-refspec.sh b/third_party/git/t/t5582-fetch-negative-refspec.sh
new file mode 100755
index 000000000000..8c61e28fec85
--- /dev/null
+++ b/third_party/git/t/t5582-fetch-negative-refspec.sh
@@ -0,0 +1,189 @@
+#!/bin/sh
+# Copyright (c) 2020, Jacob Keller.
+
+test_description='"git fetch" with negative refspecs.
+
+'
+
+. ./test-lib.sh
+
+test_expect_success setup '
+	echo >file original &&
+	git add file &&
+	git commit -a -m original
+'
+
+test_expect_success "clone and setup child repos" '
+	git clone . one &&
+	(
+		cd one &&
+		echo >file updated by one &&
+		git commit -a -m "updated by one" &&
+		git switch -c alternate &&
+		echo >file updated again by one &&
+		git commit -a -m "updated by one again" &&
+		git switch master
+	) &&
+	git clone . two &&
+	(
+		cd two &&
+		git config branch.master.remote one &&
+		git config remote.one.url ../one/.git/ &&
+		git config remote.one.fetch +refs/heads/*:refs/remotes/one/* &&
+		git config --add remote.one.fetch ^refs/heads/alternate
+	) &&
+	git clone . three
+'
+
+test_expect_success "fetch one" '
+	echo >file updated by origin &&
+	git commit -a -m "updated by origin" &&
+	(
+		cd two &&
+		test_must_fail git rev-parse --verify refs/remotes/one/alternate &&
+		git fetch one &&
+		test_must_fail git rev-parse --verify refs/remotes/one/alternate &&
+		git rev-parse --verify refs/remotes/one/master &&
+		mine=$(git rev-parse refs/remotes/one/master) &&
+		his=$(cd ../one && git rev-parse refs/heads/master) &&
+		test "z$mine" = "z$his"
+	)
+'
+
+test_expect_success "fetch with negative refspec on commandline" '
+	echo >file updated by origin again &&
+	git commit -a -m "updated by origin again" &&
+	(
+		cd three &&
+		alternate_in_one=$(cd ../one && git rev-parse refs/heads/alternate) &&
+		echo $alternate_in_one >expect &&
+		git fetch ../one/.git refs/heads/*:refs/remotes/one/* ^refs/heads/master &&
+		cut -f -1 .git/FETCH_HEAD >actual &&
+		test_cmp expect actual
+	)
+'
+
+test_expect_success "fetch with negative sha1 refspec fails" '
+	echo >file updated by origin yet again &&
+	git commit -a -m "updated by origin yet again" &&
+	(
+		cd three &&
+		master_in_one=$(cd ../one && git rev-parse refs/heads/master) &&
+		test_must_fail git fetch ../one/.git refs/heads/*:refs/remotes/one/* ^$master_in_one
+	)
+'
+
+test_expect_success "fetch with negative pattern refspec" '
+	echo >file updated by origin once more &&
+	git commit -a -m "updated by origin once more" &&
+	(
+		cd three &&
+		alternate_in_one=$(cd ../one && git rev-parse refs/heads/alternate) &&
+		echo $alternate_in_one >expect &&
+		git fetch ../one/.git refs/heads/*:refs/remotes/one/* ^refs/heads/m* &&
+		cut -f -1 .git/FETCH_HEAD >actual &&
+		test_cmp expect actual
+	)
+'
+
+test_expect_success "fetch with negative pattern refspec does not expand prefix" '
+	echo >file updated by origin another time &&
+	git commit -a -m "updated by origin another time" &&
+	(
+		cd three &&
+		alternate_in_one=$(cd ../one && git rev-parse refs/heads/alternate) &&
+		master_in_one=$(cd ../one && git rev-parse refs/heads/master) &&
+		echo $alternate_in_one >expect &&
+		echo $master_in_one >>expect &&
+		git fetch ../one/.git refs/heads/*:refs/remotes/one/* ^master &&
+		cut -f -1 .git/FETCH_HEAD >actual &&
+		test_cmp expect actual
+	)
+'
+
+test_expect_success "fetch with negative refspec avoids duplicate conflict" '
+	cd "$D" &&
+	(
+		cd one &&
+		git branch dups/a &&
+		git branch dups/b &&
+		git branch dups/c &&
+		git branch other/a &&
+		git rev-parse --verify refs/heads/other/a >../expect &&
+		git rev-parse --verify refs/heads/dups/b >>../expect &&
+		git rev-parse --verify refs/heads/dups/c >>../expect
+	) &&
+	(
+		cd three &&
+		git fetch ../one/.git ^refs/heads/dups/a refs/heads/dups/*:refs/dups/* refs/heads/other/a:refs/dups/a &&
+		git rev-parse --verify refs/dups/a >../actual &&
+		git rev-parse --verify refs/dups/b >>../actual &&
+		git rev-parse --verify refs/dups/c >>../actual
+	) &&
+	test_cmp expect actual
+'
+
+test_expect_success "push --prune with negative refspec" '
+	(
+		cd two &&
+		git branch prune/a &&
+		git branch prune/b &&
+		git branch prune/c &&
+		git push ../three refs/heads/prune/* &&
+		git branch -d prune/a &&
+		git branch -d prune/b &&
+		git push --prune ../three refs/heads/prune/* ^refs/heads/prune/b
+	) &&
+	(
+		cd three &&
+		test_write_lines b c >expect &&
+		git for-each-ref --format="%(refname:lstrip=3)" refs/heads/prune/ >actual &&
+		test_cmp expect actual
+	)
+'
+
+test_expect_success "push --prune with negative refspec apply to the destination" '
+	(
+		cd two &&
+		git branch ours/a &&
+		git branch ours/b &&
+		git branch ours/c &&
+		git push ../three refs/heads/ours/*:refs/heads/theirs/* &&
+		git branch -d ours/a &&
+		git branch -d ours/b &&
+		git push --prune ../three refs/heads/ours/*:refs/heads/theirs/* ^refs/heads/theirs/b
+	) &&
+	(
+		cd three &&
+		test_write_lines b c >expect &&
+		git for-each-ref --format="%(refname:lstrip=3)" refs/heads/theirs/ >actual &&
+		test_cmp expect actual
+	)
+'
+
+test_expect_success "fetch --prune with negative refspec" '
+	(
+		cd two &&
+		git branch fetch/a &&
+		git branch fetch/b &&
+		git branch fetch/c
+	) &&
+	(
+		cd three &&
+		git fetch ../two/.git refs/heads/fetch/*:refs/heads/copied/*
+	) &&
+	(
+		cd two &&
+		git branch -d fetch/a &&
+		git branch -d fetch/b
+	) &&
+	(
+		cd three &&
+		test_write_lines b c >expect &&
+		git fetch -v ../two/.git --prune refs/heads/fetch/*:refs/heads/copied/* ^refs/heads/fetch/b &&
+		git for-each-ref --format="%(refname:lstrip=3)" refs/heads/copied/ >actual &&
+		test_cmp expect actual
+	)
+'
+
+test_done