Merge branch 'bw/protocol-v2' into jt/partial-clone-proto-v2

The beginning of the next-gen transfer protocol.

* bw/protocol-v2: (35 commits)
  remote-curl: don't request v2 when pushing
  remote-curl: implement stateless-connect command
  http: eliminate "# service" line when using protocol v2
  http: don't always add Git-Protocol header
  http: allow providing extra headers for http requests
  remote-curl: store the protocol version the server responded with
  remote-curl: create copy of the service name
  pkt-line: add packet_buf_write_len function
  transport-helper: introduce stateless-connect
  transport-helper: refactor process_connect_service
  transport-helper: remove name parameter
  connect: don't request v2 when pushing
  connect: refactor git_connect to only get the protocol version once
  fetch-pack: support shallow requests
  fetch-pack: perform a fetch using v2
  upload-pack: introduce fetch server command
  push: pass ref prefixes when pushing
  fetch: pass ref prefixes when fetching
  ls-remote: pass ref prefixes when requesting a remote's refs
  transport: convert transport_get_remote_refs to take a list of ref prefixes
  ...

1 files changed, 176 insertions, 0 deletions

diff --git a/t/t5701-git-serve.sh b/t/t5701-git-serve.sh
new file mode 100755
index 0000000000..72d7bc5628
--- /dev/null
+++ b/t/t5701-git-serve.sh
@@ -0,0 +1,176 @@
+#!/bin/sh
+
+test_description='test git-serve and server commands'
+
+. ./test-lib.sh
+
+test_expect_success 'test capability advertisement' '
+	cat >expect <<-EOF &&
+	version 2
+	agent=git/$(git version | cut -d" " -f3)
+	ls-refs
+	fetch=shallow
+	0000
+	EOF
+
+	git serve --advertise-capabilities >out &&
+	test-pkt-line unpack <out >actual &&
+	test_cmp actual expect
+'
+
+test_expect_success 'stateless-rpc flag does not list capabilities' '
+	# Empty request
+	test-pkt-line pack >in <<-EOF &&
+	0000
+	EOF
+	git serve --stateless-rpc >out <in &&
+	test_must_be_empty out &&
+
+	# EOF
+	git serve --stateless-rpc >out &&
+	test_must_be_empty out
+'
+
+test_expect_success 'request invalid capability' '
+	test-pkt-line pack >in <<-EOF &&
+	foobar
+	0000
+	EOF
+	test_must_fail git serve --stateless-rpc 2>err <in &&
+	test_i18ngrep "unknown capability" err
+'
+
+test_expect_success 'request with no command' '
+	test-pkt-line pack >in <<-EOF &&
+	agent=git/test
+	0000
+	EOF
+	test_must_fail git serve --stateless-rpc 2>err <in &&
+	test_i18ngrep "no command requested" err
+'
+
+test_expect_success 'request invalid command' '
+	test-pkt-line pack >in <<-EOF &&
+	command=foo
+	agent=git/test
+	0000
+	EOF
+	test_must_fail git serve --stateless-rpc 2>err <in &&
+	test_i18ngrep "invalid command" err
+'
+
+# Test the basics of ls-refs
+#
+test_expect_success 'setup some refs and tags' '
+	test_commit one &&
+	git branch dev master &&
+	test_commit two &&
+	git symbolic-ref refs/heads/release refs/heads/master &&
+	git tag -a -m "annotated tag" annotated-tag
+'
+
+test_expect_success 'basics of ls-refs' '
+	test-pkt-line pack >in <<-EOF &&
+	command=ls-refs
+	0000
+	EOF
+
+	cat >expect <<-EOF &&
+	$(git rev-parse HEAD) HEAD
+	$(git rev-parse refs/heads/dev) refs/heads/dev
+	$(git rev-parse refs/heads/master) refs/heads/master
+	$(git rev-parse refs/heads/release) refs/heads/release
+	$(git rev-parse refs/tags/annotated-tag) refs/tags/annotated-tag
+	$(git rev-parse refs/tags/one) refs/tags/one
+	$(git rev-parse refs/tags/two) refs/tags/two
+	0000
+	EOF
+
+	git serve --stateless-rpc <in >out &&
+	test-pkt-line unpack <out >actual &&
+	test_cmp actual expect
+'
+
+test_expect_success 'basic ref-prefixes' '
+	test-pkt-line pack >in <<-EOF &&
+	command=ls-refs
+	0001
+	ref-prefix refs/heads/master
+	ref-prefix refs/tags/one
+	0000
+	EOF
+
+	cat >expect <<-EOF &&
+	$(git rev-parse refs/heads/master) refs/heads/master
+	$(git rev-parse refs/tags/one) refs/tags/one
+	0000
+	EOF
+
+	git serve --stateless-rpc <in >out &&
+	test-pkt-line unpack <out >actual &&
+	test_cmp actual expect
+'
+
+test_expect_success 'refs/heads prefix' '
+	test-pkt-line pack >in <<-EOF &&
+	command=ls-refs
+	0001
+	ref-prefix refs/heads/
+	0000
+	EOF
+
+	cat >expect <<-EOF &&
+	$(git rev-parse refs/heads/dev) refs/heads/dev
+	$(git rev-parse refs/heads/master) refs/heads/master
+	$(git rev-parse refs/heads/release) refs/heads/release
+	0000
+	EOF
+
+	git serve --stateless-rpc <in >out &&
+	test-pkt-line unpack <out >actual &&
+	test_cmp actual expect
+'
+
+test_expect_success 'peel parameter' '
+	test-pkt-line pack >in <<-EOF &&
+	command=ls-refs
+	0001
+	peel
+	ref-prefix refs/tags/
+	0000
+	EOF
+
+	cat >expect <<-EOF &&
+	$(git rev-parse refs/tags/annotated-tag) refs/tags/annotated-tag peeled:$(git rev-parse refs/tags/annotated-tag^{})
+	$(git rev-parse refs/tags/one) refs/tags/one
+	$(git rev-parse refs/tags/two) refs/tags/two
+	0000
+	EOF
+
+	git serve --stateless-rpc <in >out &&
+	test-pkt-line unpack <out >actual &&
+	test_cmp actual expect
+'
+
+test_expect_success 'symrefs parameter' '
+	test-pkt-line pack >in <<-EOF &&
+	command=ls-refs
+	0001
+	symrefs
+	ref-prefix refs/heads/
+	0000
+	EOF
+
+	cat >expect <<-EOF &&
+	$(git rev-parse refs/heads/dev) refs/heads/dev
+	$(git rev-parse refs/heads/master) refs/heads/master
+	$(git rev-parse refs/heads/release) refs/heads/release symref-target:refs/heads/master
+	0000
+	EOF
+
+	git serve --stateless-rpc <in >out &&
+	test-pkt-line unpack <out >actual &&
+	test_cmp actual expect
+'
+
+test_done