$ . $TESTDIR/wireprotohelpers.sh

  $ hg init server

  $ enablehttpv2 server

  $ cd server

  $ cat > a << EOF

  > a0

  > 00000000000000000000000000000000000000

  > 11111111111111111111111111111111111111

  > EOF

  $ echo b0 > b

  $ mkdir -p dir0/child0 dir0/child1 dir1

  $ echo c0 > dir0/c

  $ echo d0 > dir0/d

  $ echo e0 > dir0/child0/e

  $ echo f0 > dir0/child1/f

  $ hg -q commit -A -m 'commit 0'

  $ echo a1 >> a

  $ echo d1 > dir0/d

  $ hg commit -m 'commit 1'

  $ echo f1 > dir0/child1/f

  $ hg commit -m 'commit 2'

  $ hg -q up -r 0

  $ echo a2 >> a

  $ hg commit -m 'commit 3'

  created new head

Create multiple heads introducing the same changeset

  $ hg -q up -r 0

  $ echo foo > dupe-file

  $ hg commit -Am 'dupe 1'

  adding dupe-file

  created new head

  $ hg -q up -r 0

  $ echo foo > dupe-file

  $ hg commit -Am 'dupe 2'

  adding dupe-file

  created new head

  $ hg log -G -T '{rev}:{node} {desc}\n'

  @  5:732c3dd7bee94242de656000e5f458e7ccfe2828 dupe 2

  |

  | o  4:4334f10897d13c3e8beb4b636f7272b4ec2d0322 dupe 1

  |/

  | o  3:5ce944d7fece1252dae06c34422b573c191b9489 commit 3

  |/

  | o  2:b3c27db01410dae01e5485d425b1440078df540c commit 2

  | |

  | o  1:3ef5e551f219ba505481d34d6b0316b017fa3f00 commit 1

  |/

  o  0:91b232a2253ce0638496f67bdfd7a4933fb51b25 commit 0

  $ hg --debug debugindex a

     rev linkrev nodeid                                   p1                                       p2

       0       0 649d149df43d83882523b7fb1e6a3af6f1907b39 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000

       1       1 0a86321f1379d1a9ecd0579a22977af7a5acaf11 649d149df43d83882523b7fb1e6a3af6f1907b39 0000000000000000000000000000000000000000

       2       3 7e5801b6d5f03a5a54f3c47b583f7567aad43e5b 649d149df43d83882523b7fb1e6a3af6f1907b39 0000000000000000000000000000000000000000

  $ hg --debug debugindex dir0/child0/e

     rev linkrev nodeid                                   p1                                       p2

       0       0 bbba6c06b30f443d34ff841bc985c4d0827c6be4 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000

  $ hg --debug debugindex dupe-file

     rev linkrev nodeid                                   p1                                       p2

       0       4 2ed2a3912a0b24502043eae84ee4b279c18b90dd 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000

  $ hg serve -p $HGPORT -d --pid-file hg.pid -E error.log

  $ cat hg.pid > $DAEMON_PIDS

Missing arguments is an error

  $ sendhttpv2peer << EOF

  > command filedata

  > EOF

  creating http peer for wire protocol version 2

  sending filedata command

  abort: missing required arguments: nodes, path

  [255]

  $ sendhttpv2peer << EOF

  > command filedata

  >     nodes eval:[]

  > EOF

  creating http peer for wire protocol version 2

  sending filedata command

  abort: missing required arguments: path

  [255]

Unknown node is an error

  $ sendhttpv2peer << EOF

  > command filedata

  >     nodes eval:[b'\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa']

  >     path eval:b'a'

  > EOF

  creating http peer for wire protocol version 2

  sending filedata command

  abort: unknown file node: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

  [255]

Fetching a single revision returns just metadata by default

  $ sendhttpv2peer << EOF

  > command filedata

  >     nodes eval:[b'\x0a\x86\x32\x1f\x13\x79\xd1\xa9\xec\xd0\x57\x9a\x22\x97\x7a\xf7\xa5\xac\xaf\x11']

  >     path eval:b'a'

  > EOF

  creating http peer for wire protocol version 2

  sending filedata command

  response: gen[

    {

      b'totalitems': 1

    },

    {

      b'node': b'\n\x862\x1f\x13y\xd1\xa9\xec\xd0W\x9a"\x97z\xf7\xa5\xac\xaf\x11'

    }

  ]

Requesting parents works

  $ sendhttpv2peer << EOF

  > command filedata

  >     nodes eval:[b'\x0a\x86\x32\x1f\x13\x79\xd1\xa9\xec\xd0\x57\x9a\x22\x97\x7a\xf7\xa5\xac\xaf\x11']

  >     path eval:b'a'

  >     fields eval:[b'parents']

  > EOF

  creating http peer for wire protocol version 2

  sending filedata command

  response: gen[

    {

      b'totalitems': 1

    },

    {

      b'node': b'\n\x862\x1f\x13y\xd1\xa9\xec\xd0W\x9a"\x97z\xf7\xa5\xac\xaf\x11',

      b'parents': [

        b'd\x9d\x14\x9d\xf4=\x83\x88%#\xb7\xfb\x1ej:\xf6\xf1\x90{9',

        b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'

      ]

    }

  ]

Requesting revision data works

(haveparents defaults to False, so fulltext is emitted)

  $ sendhttpv2peer << EOF

  > command filedata

  >     nodes eval:[b'\x0a\x86\x32\x1f\x13\x79\xd1\xa9\xec\xd0\x57\x9a\x22\x97\x7a\xf7\xa5\xac\xaf\x11']

  >     path eval:b'a'

  >     fields eval:[b'revision']

  > EOF

  creating http peer for wire protocol version 2

  sending filedata command

  response: gen[

    {

      b'totalitems': 1

    },

    {

      b'fieldsfollowing': [

        [

          b'revision',

          84

        ]

      ],

      b'node': b'\n\x862\x1f\x13y\xd1\xa9\xec\xd0W\x9a"\x97z\xf7\xa5\xac\xaf\x11'

    },

    b'a0\n00000000000000000000000000000000000000\n11111111111111111111111111111111111111\na1\n'

  ]

haveparents=False should be same as above

  $ sendhttpv2peer << EOF

  > command filedata

  >     nodes eval:[b'\x0a\x86\x32\x1f\x13\x79\xd1\xa9\xec\xd0\x57\x9a\x22\x97\x7a\xf7\xa5\xac\xaf\x11']

  >     path eval:b'a'

  >     fields eval:[b'revision']

  >     haveparents eval:False

  > EOF

  creating http peer for wire protocol version 2

  sending filedata command

  response: gen[

    {

      b'totalitems': 1

    },

    {

      b'fieldsfollowing': [

        [

          b'revision',

          84

        ]

      ],

      b'node': b'\n\x862\x1f\x13y\xd1\xa9\xec\xd0W\x9a"\x97z\xf7\xa5\xac\xaf\x11'

    },

    b'a0\n00000000000000000000000000000000000000\n11111111111111111111111111111111111111\na1\n'

  ]

haveparents=True should emit a delta

  $ sendhttpv2peer << EOF

  > command filedata

  >     nodes eval:[b'\x0a\x86\x32\x1f\x13\x79\xd1\xa9\xec\xd0\x57\x9a\x22\x97\x7a\xf7\xa5\xac\xaf\x11']

  >     path eval:b'a'

  >     fields eval:[b'revision']

  >     haveparents eval:True

  > EOF

  creating http peer for wire protocol version 2

  sending filedata command

  response: gen[

    {

      b'totalitems': 1

    },

    {

      b'deltabasenode': b'd\x9d\x14\x9d\xf4=\x83\x88%#\xb7\xfb\x1ej:\xf6\xf1\x90{9',

      b'fieldsfollowing': [

        [

          b'delta',

          15

        ]

      ],

      b'node': b'\n\x862\x1f\x13y\xd1\xa9\xec\xd0W\x9a"\x97z\xf7\xa5\xac\xaf\x11'

    },

    b'\x00\x00\x00Q\x00\x00\x00Q\x00\x00\x00\x03a1\n'

  ]

Requesting multiple revisions works

(first revision is a fulltext since haveparents=False by default)

  $ sendhttpv2peer << EOF

  > command filedata

  >     nodes eval:[b'\x64\x9d\x14\x9d\xf4\x3d\x83\x88\x25\x23\xb7\xfb\x1e\x6a\x3a\xf6\xf1\x90\x7b\x39', b'\x0a\x86\x32\x1f\x13\x79\xd1\xa9\xec\xd0\x57\x9a\x22\x97\x7a\xf7\xa5\xac\xaf\x11']

  >     path eval:b'a'

  >     fields eval:[b'revision']

  > EOF

  creating http peer for wire protocol version 2

  sending filedata command

  response: gen[

    {

      b'totalitems': 2

    },

    {

      b'fieldsfollowing': [

        [

          b'revision',

          81

        ]

      ],

      b'node': b'd\x9d\x14\x9d\xf4=\x83\x88%#\xb7\xfb\x1ej:\xf6\xf1\x90{9'

    },

    b'a0\n00000000000000000000000000000000000000\n11111111111111111111111111111111111111\n',

    {

      b'deltabasenode': b'd\x9d\x14\x9d\xf4=\x83\x88%#\xb7\xfb\x1ej:\xf6\xf1\x90{9',

      b'fieldsfollowing': [

        [

          b'delta',

          15

        ]

      ],

      b'node': b'\n\x862\x1f\x13y\xd1\xa9\xec\xd0W\x9a"\x97z\xf7\xa5\xac\xaf\x11'

    },

    b'\x00\x00\x00Q\x00\x00\x00Q\x00\x00\x00\x03a1\n'

  ]

Revisions are sorted by DAG order, parents first

  $ sendhttpv2peer << EOF

  > command filedata

  >     nodes eval:[b'\x0a\x86\x32\x1f\x13\x79\xd1\xa9\xec\xd0\x57\x9a\x22\x97\x7a\xf7\xa5\xac\xaf\x11', b'\x64\x9d\x14\x9d\xf4\x3d\x83\x88\x25\x23\xb7\xfb\x1e\x6a\x3a\xf6\xf1\x90\x7b\x39']

  >     path eval:b'a'

  >     fields eval:[b'revision']

  > EOF

  creating http peer for wire protocol version 2

  sending filedata command

  response: gen[

    {

      b'totalitems': 2

    },

    {

      b'fieldsfollowing': [

        [

          b'revision',

          81

        ]

      ],

      b'node': b'd\x9d\x14\x9d\xf4=\x83\x88%#\xb7\xfb\x1ej:\xf6\xf1\x90{9'

    },

    b'a0\n00000000000000000000000000000000000000\n11111111111111111111111111111111111111\n',

    {

      b'deltabasenode': b'd\x9d\x14\x9d\xf4=\x83\x88%#\xb7\xfb\x1ej:\xf6\xf1\x90{9',

      b'fieldsfollowing': [

        [

          b'delta',

          15

        ]

      ],

      b'node': b'\n\x862\x1f\x13y\xd1\xa9\xec\xd0W\x9a"\x97z\xf7\xa5\xac\xaf\x11'

    },

    b'\x00\x00\x00Q\x00\x00\x00Q\x00\x00\x00\x03a1\n'

  ]

Requesting parents and revision data works

  $ sendhttpv2peer << EOF

  > command filedata

  >     nodes eval:[b'\x7e\x58\x01\xb6\xd5\xf0\x3a\x5a\x54\xf3\xc4\x7b\x58\x3f\x75\x67\xaa\xd4\x3e\x5b']

  >     path eval:b'a'

  >     fields eval:[b'parents', b'revision']

  > EOF

  creating http peer for wire protocol version 2

  sending filedata command

  response: gen[

    {

      b'totalitems': 1

    },

    {

      b'fieldsfollowing': [

        [

          b'revision',

          84

        ]

      ],

      b'node': b'~X\x01\xb6\xd5\xf0:ZT\xf3\xc4{X?ug\xaa\xd4>[',

      b'parents': [

        b'd\x9d\x14\x9d\xf4=\x83\x88%#\xb7\xfb\x1ej:\xf6\xf1\x90{9',

        b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'

      ]

    },

    b'a0\n00000000000000000000000000000000000000\n11111111111111111111111111111111111111\na2\n'

  ]

Linknode for duplicate revision is the initial revision

  $ sendhttpv2peer << EOF

  > command filedata

  >     nodes eval:[b'\x2e\xd2\xa3\x91\x2a\x0b\x24\x50\x20\x43\xea\xe8\x4e\xe4\xb2\x79\xc1\x8b\x90\xdd']

  >     path eval:b'dupe-file'

  >     fields eval:[b'linknode', b'parents', b'revision']

  > EOF

  creating http peer for wire protocol version 2

  sending filedata command

  response: gen[

    {

      b'totalitems': 1

    },

    {

      b'fieldsfollowing': [

        [

          b'revision',

          4

        ]

      ],

      b'linknode': b'C4\xf1\x08\x97\xd1<>\x8b\xebKcorr\xb4\xec-\x03"',

      b'node': b'.\xd2\xa3\x91*\x0b$P C\xea\xe8N\xe4\xb2y\xc1\x8b\x90\xdd',

      b'parents': [

        b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',

        b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'

      ]

    },

    b'foo\n'

  ]

  $ cat error.log