clone: add tests for output directory

When we run "git clone $url", clone guesses from the $url
what to name the local output directory. We don't have any
test coverage of this, so let's add some basic tests.

This reveals a few problems:

  - cloning "foo.git/" does not properly remove the ".git";
    this is a recent regression from 7e837c6 (clone:
    simplify string handling in guess_dir_name(), 2015-07-09)

  - likewise, cloning foo/.git does not seem to handle the
    bare case (we should end up in foo.git, but we try to
    use foo/.git on the local end), which also comes from
    7e837c6.

  - cloning the root is not very smart about URL parsing,
    and usernames and port numbers may end up in the
    directory name

All of these tests are marked as failures.

Signed-off-by: Jeff King <[email protected]>
Signed-off-by: Patrick Steinhardt <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: peff

t/t5603-clone-dirname.sh

@@ -0,0 +1,106 @@
+#!/bin/sh
+
+test_description='check output directory names used by git-clone'
+. ./test-lib.sh
+
+# we use a fake ssh wrapper that ignores the arguments
+# entirely; we really only care that we get _some_ repo,
+# as the real test is what clone does on the local side
+test_expect_success 'setup ssh wrapper' '
+	write_script "$TRASH_DIRECTORY/ssh-wrapper" <<-\EOF &&
+	git upload-pack "$TRASH_DIRECTORY"
+	EOF
+	GIT_SSH="$TRASH_DIRECTORY/ssh-wrapper" &&
+	export GIT_SSH &&
+	export TRASH_DIRECTORY
+'
+
+# make sure that cloning $1 results in local directory $2
+test_clone_dir () {
+	url=$1; shift
+	dir=$1; shift
+	expect=success
+	bare=non-bare
+	clone_opts=
+	for i in "$@"
+	do
+		case "$i" in
+		fail)
+			expect=failure
+			;;
+		bare)
+			bare=bare
+			clone_opts=--bare
+			;;
+		esac
+	done
+	test_expect_$expect "clone of $url goes to $dir ($bare)" "
+		rm -rf $dir &&
+		git clone $clone_opts $url &&
+		test_path_is_dir $dir
+	"
+}
+
+# basic syntax with bare and non-bare variants
+test_clone_dir host:foo foo
+test_clone_dir host:foo foo.git bare
+test_clone_dir host:foo.git foo
+test_clone_dir host:foo.git foo.git bare
+test_clone_dir host:foo/.git foo
+test_clone_dir host:foo/.git foo.git bare fail
+
+# similar, but using ssh URL rather than host:path syntax
+test_clone_dir ssh://host/foo foo
+test_clone_dir ssh://host/foo foo.git bare
+test_clone_dir ssh://host/foo.git foo
+test_clone_dir ssh://host/foo.git foo.git bare
+test_clone_dir ssh://host/foo/.git foo
+test_clone_dir ssh://host/foo/.git foo.git bare fail
+
+# we should remove trailing slashes and .git suffixes
+test_clone_dir ssh://host/foo/ foo
+test_clone_dir ssh://host/foo/// foo
+test_clone_dir ssh://host/foo/.git/ foo
+test_clone_dir ssh://host/foo.git/ foo fail
+test_clone_dir ssh://host/foo.git/// foo fail
+test_clone_dir ssh://host/foo///.git/ foo
+test_clone_dir ssh://host/foo/.git/// foo
+
+test_clone_dir host:foo/ foo
+test_clone_dir host:foo/// foo
+test_clone_dir host:foo.git/ foo fail
+test_clone_dir host:foo/.git/ foo
+test_clone_dir host:foo.git/// foo fail
+test_clone_dir host:foo///.git/ foo
+test_clone_dir host:foo/.git/// foo
+
+# omitting the path should default to the hostname
+test_clone_dir ssh://host/ host
+test_clone_dir ssh://host:1234/ host fail
+test_clone_dir ssh://user@host/ host fail
+test_clone_dir host:/ host fail
+
+# auth materials should be redacted
+test_clone_dir ssh://user:password@host/ host fail
+test_clone_dir ssh://user:password@host:1234/ host fail
+test_clone_dir ssh://user:passw@rd@host:1234/ host fail
+test_clone_dir user@host:/ host fail
+test_clone_dir user:password@host:/ host fail
+test_clone_dir user:passw@rd@host:/ host fail
+
+# auth-like material should not be dropped
+test_clone_dir ssh://host/foo@bar foo@bar
+test_clone_dir ssh://host/[email protected] foo@bar
+test_clone_dir ssh://user:password@host/foo@bar foo@bar
+test_clone_dir ssh://user:passw@rd@host/[email protected] foo@bar
+
+test_clone_dir host:/foo@bar foo@bar
+test_clone_dir host:/[email protected] foo@bar
+test_clone_dir user:password@host:/foo@bar foo@bar
+test_clone_dir user:passw@rd@host:/[email protected] foo@bar
+
+# trailing port-like numbers should not be stripped for paths
+test_clone_dir ssh://user:password@host/test:1234 1234
+test_clone_dir ssh://user:password@host/test:1234.git 1234
+
+test_done