tests: refactor common bundle2 capabilities

Differential Revision: https://phab.mercurial-scm.org/D1945

tests/common-pattern.py

@@ -1,179 +1,193 b''
 # common patterns in test at can safely be replaced
 from __future__ import absolute_import
 
 import os
 
 substitutions = [
     # list of possible compressions
     (br'(zstd,)?zlib,none,bzip2',
      br'$USUAL_COMPRESSIONS$'
     ),
     (br'=(zstd,)?zlib',
      br'=$BUNDLE2_COMPRESSIONS$'
     ),
     # capabilities sent through http
     (br'bundlecaps=HG20%2Cbundle2%3DHG20%250A'
      br'bookmarks%250A'
      br'changegroup%253D01%252C02%250A'
      br'digests%253Dmd5%252Csha1%252Csha512%250A'
      br'error%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250A'
      br'hgtagsfnodes%250A'
      br'listkeys%250A'
      br'phases%253Dheads%250A'
      br'pushkey%250A'
      br'remote-changegroup%253Dhttp%252Chttps%250A'
      br'rev-branch-cache%250A'
      br'stream%253Dv2',
      # (the replacement patterns)
      br'$USUAL_BUNDLE_CAPS$'
     ),
     (br'bundlecaps=HG20%2Cbundle2%3DHG20%250A'
      br'bookmarks%250A'
      br'changegroup%253D01%252C02%250A'
      br'digests%253Dmd5%252Csha1%252Csha512%250A'
      br'error%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250A'
      br'hgtagsfnodes%250A'
      br'listkeys%250A'
      br'phases%253Dheads%250A'
      br'pushkey%250A'
      br'remote-changegroup%253Dhttp%252Chttps',
      # (the replacement patterns)
      br'$USUAL_BUNDLE_CAPS_SERVER$'
      ),
     # bundle2 capabilities sent through ssh
     (br'bundle2=HG20%0A'
      br'bookmarks%0A'
      br'changegroup%3D01%2C02%0A'
      br'digests%3Dmd5%2Csha1%2Csha512%0A'
      br'error%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0A'
      br'hgtagsfnodes%0A'
      br'listkeys%0A'
      br'phases%3Dheads%0A'
      br'pushkey%0A'
      br'remote-changegroup%3Dhttp%2Chttps%0A'
      br'rev-branch-cache%0A'
      br'stream%3Dv2',
      # (replacement patterns)
      br'$USUAL_BUNDLE2_CAPS$'
     ),
     # bundle2 capabilities advertised by the server
     (br'bundle2=HG20%0A'
      br'bookmarks%0A'
      br'changegroup%3D01%2C02%0A'
      br'digests%3Dmd5%2Csha1%2Csha512%0A'
      br'error%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0A'
      br'hgtagsfnodes%0A'
      br'listkeys%0A'
      br'phases%3Dheads%0A'
      br'pushkey%0A'
      br'remote-changegroup%3Dhttp%2Chttps%0A'
      br'rev-branch-cache',
      # (replacement patterns)
      br'$USUAL_BUNDLE2_CAPS_SERVER$'
      ),
+    (
+     br'bundle2=HG20%0A'
+     br'bookmarks%0A'
+     br'changegroup%3D01%2C02%0A'
+     br'digests%3Dmd5%2Csha1%2Csha512%0A'
+     br'error%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0A'
+     br'hgtagsfnodes%0A'
+     br'listkeys%0A'
+     br'pushkey%0A'
+     br'remote-changegroup%3Dhttp%2Chttps%0A'
+     br'rev-branch-cache',
+     # (replacement patterns)
+     br'$USUAL_BUNDLE2_CAPS_NO_PHASES$'
+    ),
     # HTTP access log dates
     (br' - - \[\d\d/.../2\d\d\d \d\d:\d\d:\d\d] "(GET|PUT|POST)',
      lambda m: br' - - [$LOGDATE$] "' + m.group(1)
     ),
     # HTTP error log dates
     (br' - - \[\d\d/.../2\d\d\d \d\d:\d\d:\d\d] (HG error:|Exception)',
      lambda m: br' - - [$ERRDATE$] ' + m.group(1)
     ),
     # HTTP header dates- RFC 1123
     (br'([Dd]ate): [A-Za-z]{3}, \d\d [A-Za-z]{3} \d{4} \d\d:\d\d:\d\d GMT',
      lambda m: br'%s: $HTTP_DATE$' % m.group(1)
     ),
     # LFS expiration value
     (br'"expires_at": "\d{4}-\d\d-\d\dT\d\d:\d\d:\d\dZ"',
      br'"expires_at": "$ISO_8601_DATE_TIME$"'
     ),
     # Windows has an extra '/' in the following lines that get globbed away:
     #   pushing to file:/*/$TESTTMP/r2 (glob)
     #   comparing with file:/*/$TESTTMP/r2 (glob)
     #   sub/maybelarge.dat: largefile 34..9c not available from
     #       file:/*/$TESTTMP/largefiles-repo (glob)
     (br'(.*file:/)/?(/\$TESTTMP.*)',
      lambda m: m.group(1) + b'*' + m.group(2) + b' (glob)'
     ),
 ]
 
 # Various platform error strings, keyed on a common replacement string
 _errors = {
     br'$ENOENT$': (
         # strerror()
         br'No such file or directory',
 
         # FormatMessage(ERROR_FILE_NOT_FOUND)
         br'The system cannot find the file specified',
     ),
     br'$ENOTDIR$': (
         # strerror()
         br'Not a directory',
 
         # FormatMessage(ERROR_PATH_NOT_FOUND)
         br'The system cannot find the path specified',
     ),
     br'$ECONNRESET$': (
         # strerror()
         br'Connection reset by peer',
 
         # FormatMessage(WSAECONNRESET)
         br'An existing connection was forcibly closed by the remote host',
     ),
     br'$EADDRINUSE$': (
         # strerror()
         br'Address already in use',
 
         # FormatMessage(WSAEADDRINUSE)
         br'Only one usage of each socket address'
         br' \(protocol/network address/port\) is normally permitted',
     ),
 }
 
 for replace, msgs in _errors.items():
     substitutions.extend((m, replace) for m in msgs)
 
 # Output lines on Windows that can be autocorrected for '\' vs '/' path
 # differences.
 _winpathfixes = [
     # cloning subrepo s\ss from $TESTTMP/t/s/ss
     # cloning subrepo foo\bar from http://localhost:$HGPORT/foo/bar
     br'(?m)^cloning subrepo \S+\\.*',
 
     # pulling from $TESTTMP\issue1852a
     br'(?m)^pulling from \$TESTTMP\\.*',
 
     # pushing to $TESTTMP\a
     br'(?m)^pushing to \$TESTTMP\\.*',
 
     # pushing subrepo s\ss to $TESTTMP/t/s/ss
     br'(?m)^pushing subrepo \S+\\\S+ to.*',
 
     # moving d1\d11\a1 to d3/d11/a1
     br'(?m)^moving \S+\\.*',
 
     # d1\a: not recording move - dummy does not exist
     br'\S+\\\S+: not recording move .+',
 
     # reverting s\a
     br'(?m)^reverting (?!subrepo ).*\\.*',
 
     # saved backup bundle to
     #     $TESTTMP\test\.hg\strip-backup/443431ffac4f-2fc5398a-backup.hg
     br'(?m)^saved backup bundle to \$TESTTMP.*\.hg',
 
     # no changes made to subrepo s\ss since last push to ../tcc/s/ss
     br'(?m)^no changes made to subrepo \S+\\\S+ since.*',
 
     # changeset 5:9cc5aa7204f0: stuff/maybelarge.dat references missing
     #     $TESTTMP\largefiles-repo-hg\.hg\largefiles\76..38
     br'(?m)^changeset .* references (corrupted|missing) \$TESTTMP\\.*',
 
     # stuff/maybelarge.dat: largefile 76..38 not available from
     #     file:/*/$TESTTMP\largefiles-repo (glob)
     br'.*: largefile \S+ not available from file:/\*/.+',
 ]
 
 if os.name == 'nt':
     substitutions.extend([(s, lambda match: match.group().replace(b'\\', b'/'))
                           for s in _winpathfixes])

tests/test-http-bad-server.t

@@ -1,914 +1,914 b''
 #require serve zstd
 
 Client version is embedded in HTTP request and is effectively dynamic. Pin the
 version so behavior is deterministic.
 
   $ cat > fakeversion.py << EOF
   > from mercurial import util
   > util.version = lambda: '4.2'
   > EOF
 
   $ cat >> $HGRCPATH << EOF
   > [extensions]
   > fakeversion = `pwd`/fakeversion.py
   > [devel]
   > legacy.exchange = phases
   > EOF
 
   $ hg init server0
   $ cd server0
   $ touch foo
   $ hg -q commit -A -m initial
 
 Also disable compression because zstd is optional and causes output to vary
 and because debugging partial responses is hard when compression is involved
 
   $ cat > .hg/hgrc << EOF
   > [extensions]
   > badserver = $TESTDIR/badserverext.py
   > [server]
   > compressionengines = none
   > EOF
 
 Failure to accept() socket should result in connection related error message
 
   $ hg serve --config badserver.closebeforeaccept=true -p $HGPORT -d --pid-file=hg.pid
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   abort: error: $ECONNRESET$
   [255]
 
 (The server exits on its own, but there is a race between that and starting a new server.
 So ensure the process is dead.)
 
   $ killdaemons.py $DAEMON_PIDS
 
 Failure immediately after accept() should yield connection related error message
 
   $ hg serve --config badserver.closeafteraccept=true -p $HGPORT -d --pid-file=hg.pid
   $ cat hg.pid > $DAEMON_PIDS
 
 TODO: this usually outputs good results, but sometimes emits abort:
 error: '' on FreeBSD and OS X.
 What we ideally want are:
 
 abort: error: $ECONNRESET$
 
 The flakiness in this output was observable easily with
 --runs-per-test=20 on macOS 10.12 during the freeze for 4.2.
   $ hg clone http://localhost:$HGPORT/ clone
   abort: error: * (glob)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
 Failure to read all bytes in initial HTTP request should yield connection related error message
 
   $ hg serve --config badserver.closeafterrecvbytes=1 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   abort: error: bad HTTP status line: ''
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ cat error.log
   readline(1 from 65537) -> (1) G
   read limit reached; closing socket
 
   $ rm -f error.log
 
 Same failure, but server reads full HTTP request line
 
   $ hg serve --config badserver.closeafterrecvbytes=40 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
   $ hg clone http://localhost:$HGPORT/ clone
   abort: error: bad HTTP status line: ''
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ cat error.log
   readline(40 from 65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
   readline(7 from -1) -> (7) Accept-
   read limit reached; closing socket
 
   $ rm -f error.log
 
 Failure on subsequent HTTP request on the same socket (cmd?batch)
 
   $ hg serve --config badserver.closeafterrecvbytes=210,223 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
   $ hg clone http://localhost:$HGPORT/ clone
   abort: error: bad HTTP status line: ''
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ cat error.log
   readline(210 from 65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
   readline(177 from -1) -> (27) Accept-Encoding: identity\r\n
   readline(150 from -1) -> (35) accept: application/mercurial-0.1\r\n
   readline(115 from -1) -> (*) host: localhost:$HGPORT\r\n (glob)
   readline(* from -1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(* from -1) -> (2) \r\n (glob)
   write(36) -> HTTP/1.1 200 Script output follows\r\n
   write(23) -> Server: badhttpserver\r\n
   write(37) -> Date: $HTTP_DATE$\r\n
   write(41) -> Content-Type: application/mercurial-0.1\r\n
   write(21) -> Content-Length: 436\r\n
   write(2) -> \r\n
-  write(436) -> batch branchmap bundle2=HG20%0Abookmarks%0Achangegroup%3D01%2C02%0Adigests%3Dmd5%2Csha1%2Csha512%0Aerror%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0Ahgtagsfnodes%0Alistkeys%0Apushkey%0Aremote-changegroup%3Dhttp%2Chttps%0Arev-branch-cache changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  write(436) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   readline(4? from 65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n (glob)
   readline(1? from -1) -> (1?) Accept-Encoding* (glob)
   read limit reached; closing socket
   readline(223 from 65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
   readline(197 from -1) -> (27) Accept-Encoding: identity\r\n
   readline(170 from -1) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n
   readline(141 from -1) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n
   readline(100 from -1) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   readline(39 from -1) -> (35) accept: application/mercurial-0.1\r\n
   readline(4 from -1) -> (4) host
   read limit reached; closing socket
 
   $ rm -f error.log
 
 Failure to read getbundle HTTP request
 
   $ hg serve --config badserver.closeafterrecvbytes=308,317,304 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   abort: error: bad HTTP status line: ''
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ cat error.log
   readline(1 from -1) -> (1) x (?)
   readline(1 from -1) -> (1) x (?)
   readline(308 from 65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
   readline(275 from -1) -> (27) Accept-Encoding: identity\r\n
   readline(248 from -1) -> (35) accept: application/mercurial-0.1\r\n
   readline(213 from -1) -> (*) host: localhost:$HGPORT\r\n (glob)
   readline(* from -1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(* from -1) -> (2) \r\n (glob)
   write(36) -> HTTP/1.1 200 Script output follows\r\n
   write(23) -> Server: badhttpserver\r\n
   write(37) -> Date: $HTTP_DATE$\r\n
   write(41) -> Content-Type: application/mercurial-0.1\r\n
   write(21) -> Content-Length: 436\r\n
   write(2) -> \r\n
-  write(436) -> batch branchmap bundle2=HG20%0Abookmarks%0Achangegroup%3D01%2C02%0Adigests%3Dmd5%2Csha1%2Csha512%0Aerror%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0Ahgtagsfnodes%0Alistkeys%0Apushkey%0Aremote-changegroup%3Dhttp%2Chttps%0Arev-branch-cache changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  write(436) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   readline(13? from 65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n (glob)
   readline(1?? from -1) -> (27) Accept-Encoding: identity\r\n (glob)
   readline(8? from -1) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n (glob)
   readline(5? from -1) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n (glob)
   readline(1? from -1) -> (1?) x-hgproto-1:* (glob)
   read limit reached; closing socket
   readline(317 from 65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
   readline(291 from -1) -> (27) Accept-Encoding: identity\r\n
   readline(264 from -1) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n
   readline(235 from -1) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n
   readline(194 from -1) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   readline(133 from -1) -> (35) accept: application/mercurial-0.1\r\n
   readline(98 from -1) -> (*) host: localhost:$HGPORT\r\n (glob)
   readline(* from -1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(* from -1) -> (2) \r\n (glob)
   write(36) -> HTTP/1.1 200 Script output follows\r\n
   write(23) -> Server: badhttpserver\r\n
   write(37) -> Date: $HTTP_DATE$\r\n
   write(41) -> Content-Type: application/mercurial-0.1\r\n
   write(20) -> Content-Length: 42\r\n
   write(2) -> \r\n
   write(42) -> 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n;
   readline(* from 65537) -> (*) GET /?cmd=getbundle HTTP* (glob)
   read limit reached; closing socket
   readline(304 from 65537) -> (30) GET /?cmd=getbundle HTTP/1.1\r\n
   readline(274 from -1) -> (27) Accept-Encoding: identity\r\n
   readline(247 from -1) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n
   readline(218 from -1) -> (218) x-hgarg-1: bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtag
   read limit reached; closing socket
 
   $ rm -f error.log
 
 Now do a variation using POST to send arguments
 
   $ hg serve --config experimental.httppostargs=true --config badserver.closeafterrecvbytes=329,344 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   abort: error: bad HTTP status line: ''
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ cat error.log
   readline(329 from 65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
   readline(296 from -1) -> (27) Accept-Encoding: identity\r\n
   readline(269 from -1) -> (35) accept: application/mercurial-0.1\r\n
   readline(234 from -1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(* from -1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(* from -1) -> (2) \r\n (glob)
   write(36) -> HTTP/1.1 200 Script output follows\r\n
   write(23) -> Server: badhttpserver\r\n
   write(37) -> Date: $HTTP_DATE$\r\n
   write(41) -> Content-Type: application/mercurial-0.1\r\n
   write(21) -> Content-Length: 449\r\n
   write(2) -> \r\n
-  write(449) -> batch branchmap bundle2=HG20%0Abookmarks%0Achangegroup%3D01%2C02%0Adigests%3Dmd5%2Csha1%2Csha512%0Aerror%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0Ahgtagsfnodes%0Alistkeys%0Apushkey%0Aremote-changegroup%3Dhttp%2Chttps%0Arev-branch-cache changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx httppostargs known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  write(449) -> batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx httppostargs known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   readline(1?? from 65537) -> (27) POST /?cmd=batch HTTP/1.1\r\n (glob)
   readline(1?? from -1) -> (27) Accept-Encoding: identity\r\n (glob)
   readline(1?? from -1) -> (41) content-type: application/mercurial-0.1\r\n (glob)
   readline(6? from -1) -> (33) vary: X-HgArgs-Post,X-HgProto-1\r\n (glob)
   readline(3? from -1) -> (19) x-hgargs-post: 28\r\n (glob)
   readline(1? from -1) -> (1?) x-hgproto-1: * (glob)
   read limit reached; closing socket
   readline(344 from 65537) -> (27) POST /?cmd=batch HTTP/1.1\r\n
   readline(317 from -1) -> (27) Accept-Encoding: identity\r\n
   readline(290 from -1) -> (41) content-type: application/mercurial-0.1\r\n
   readline(249 from -1) -> (33) vary: X-HgArgs-Post,X-HgProto-1\r\n
   readline(216 from -1) -> (19) x-hgargs-post: 28\r\n
   readline(197 from -1) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   readline(136 from -1) -> (35) accept: application/mercurial-0.1\r\n
   readline(101 from -1) -> (20) content-length: 28\r\n
   readline(81 from -1) -> (*) host: localhost:$HGPORT\r\n (glob)
   readline(* from -1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n (glob)
   readline(* from -1) -> (2) \r\n (glob)
   read(* from 28) -> (*) cmds=* (glob)
   read limit reached, closing socket
   write(36) -> HTTP/1.1 500 Internal Server Error\r\n
 
   $ rm -f error.log
 
 Now move on to partial server responses
 
 Server sends a single character from the HTTP response line
 
   $ hg serve --config badserver.closeaftersendbytes=1 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   abort: error: bad HTTP status line: H
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ cat error.log
   readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(1 from 36) -> (0) H
   write limit reached; closing socket
   write(36) -> HTTP/1.1 500 Internal Server Error\r\n
 
   $ rm -f error.log
 
 Server sends an incomplete capabilities response body
 
   $ hg serve --config badserver.closeaftersendbytes=180 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   abort: HTTP request error (incomplete response; expected 416 bytes got 20)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ cat error.log
   readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (144) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (121) Server: badhttpserver\r\n
   write(37 from 37) -> (84) Date: $HTTP_DATE$\r\n
   write(41 from 41) -> (43) Content-Type: application/mercurial-0.1\r\n
   write(21 from 21) -> (22) Content-Length: 436\r\n
   write(2 from 2) -> (20) \r\n
   write(20 from 436) -> (0) batch branchmap bund
   write limit reached; closing socket
 
   $ rm -f error.log
 
 Server sends incomplete headers for batch request
 
   $ hg serve --config badserver.closeaftersendbytes=714 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
 TODO this output is horrible
 
   $ hg clone http://localhost:$HGPORT/ clone
   abort: 'http://localhost:$HGPORT/' does not appear to be an hg repository:
   ---%<--- (applicat)
   
   ---%<---
   !
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ cat error.log
   readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (678) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (655) Server: badhttpserver\r\n
   write(37 from 37) -> (618) Date: $HTTP_DATE$\r\n
   write(41 from 41) -> (577) Content-Type: application/mercurial-0.1\r\n
   write(21 from 21) -> (556) Content-Length: 436\r\n
   write(2 from 2) -> (554) \r\n
-  write(436 from 436) -> (118) batch branchmap bundle2=HG20%0Abookmarks%0Achangegroup%3D01%2C02%0Adigests%3Dmd5%2Csha1%2Csha512%0Aerror%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0Ahgtagsfnodes%0Alistkeys%0Apushkey%0Aremote-changegroup%3Dhttp%2Chttps%0Arev-branch-cache changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  write(436 from 436) -> (118) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n
   readline(-1) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n
   readline(-1) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (82) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (59) Server: badhttpserver\r\n
   write(37 from 37) -> (22) Date: $HTTP_DATE$\r\n
   write(22 from 41) -> (0) Content-Type: applicat
   write limit reached; closing socket
   write(36) -> HTTP/1.1 500 Internal Server Error\r\n
 
   $ rm -f error.log
 
 Server sends an incomplete HTTP response body to batch request
 
   $ hg serve --config badserver.closeaftersendbytes=779 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
 TODO client spews a stack due to uncaught ValueError in batch.results()
 #if no-chg
   $ hg clone http://localhost:$HGPORT/ clone 2> /dev/null
   [1]
 #else
   $ hg clone http://localhost:$HGPORT/ clone 2> /dev/null
   [255]
 #endif
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ cat error.log
   readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (743) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (720) Server: badhttpserver\r\n
   write(37 from 37) -> (683) Date: $HTTP_DATE$\r\n
   write(41 from 41) -> (642) Content-Type: application/mercurial-0.1\r\n
   write(21 from 21) -> (621) Content-Length: 436\r\n
   write(2 from 2) -> (619) \r\n
-  write(436 from 436) -> (183) batch branchmap bundle2=HG20%0Abookmarks%0Achangegroup%3D01%2C02%0Adigests%3Dmd5%2Csha1%2Csha512%0Aerror%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0Ahgtagsfnodes%0Alistkeys%0Apushkey%0Aremote-changegroup%3Dhttp%2Chttps%0Arev-branch-cache changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  write(436 from 436) -> (183) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n
   readline(-1) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n
   readline(-1) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (147) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (124) Server: badhttpserver\r\n
   write(37 from 37) -> (87) Date: $HTTP_DATE$\r\n
   write(41 from 41) -> (46) Content-Type: application/mercurial-0.1\r\n
   write(20 from 20) -> (26) Content-Length: 42\r\n
   write(2 from 2) -> (24) \r\n
   write(24 from 42) -> (0) 96ee1d7354c4ad7372047672
   write limit reached; closing socket
 
   $ rm -f error.log
 
 Server sends incomplete headers for getbundle response
 
   $ hg serve --config badserver.closeaftersendbytes=926 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
 TODO this output is terrible
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   abort: 'http://localhost:$HGPORT/' does not appear to be an hg repository:
   ---%<--- (application/mercuri)
   
   ---%<---
   !
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ cat error.log
   readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (890) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (867) Server: badhttpserver\r\n
   write(37 from 37) -> (830) Date: $HTTP_DATE$\r\n
   write(41 from 41) -> (789) Content-Type: application/mercurial-0.1\r\n
   write(21 from 21) -> (768) Content-Length: 436\r\n
   write(2 from 2) -> (766) \r\n
-  write(436 from 436) -> (330) batch branchmap bundle2=HG20%0Abookmarks%0Achangegroup%3D01%2C02%0Adigests%3Dmd5%2Csha1%2Csha512%0Aerror%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0Ahgtagsfnodes%0Alistkeys%0Apushkey%0Aremote-changegroup%3Dhttp%2Chttps%0Arev-branch-cache changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  write(436 from 436) -> (330) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n
   readline(-1) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n
   readline(-1) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (294) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (271) Server: badhttpserver\r\n
   write(37 from 37) -> (234) Date: $HTTP_DATE$\r\n
   write(41 from 41) -> (193) Content-Type: application/mercurial-0.1\r\n
   write(20 from 20) -> (173) Content-Length: 42\r\n
   write(2 from 2) -> (171) \r\n
   write(42 from 42) -> (129) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n;
   readline(65537) -> (30) GET /?cmd=getbundle HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n
   readline(-1) -> (461) x-hgarg-1: bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=96ee1d7354c4ad7372047672c36a1f561e3a6a4c&listkeys=phases%2Cbookmarks\r\n
   readline(-1) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (93) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (70) Server: badhttpserver\r\n
   write(37 from 37) -> (33) Date: $HTTP_DATE$\r\n
   write(33 from 41) -> (0) Content-Type: application/mercuri
   write limit reached; closing socket
   write(36) -> HTTP/1.1 500 Internal Server Error\r\n
 
   $ rm -f error.log
 
 Server sends empty HTTP body for getbundle
 
   $ hg serve --config badserver.closeaftersendbytes=964 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   abort: HTTP request error (incomplete response)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ cat error.log
   readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (928) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (905) Server: badhttpserver\r\n
   write(37 from 37) -> (868) Date: $HTTP_DATE$\r\n
   write(41 from 41) -> (827) Content-Type: application/mercurial-0.1\r\n
   write(21 from 21) -> (806) Content-Length: 436\r\n
   write(2 from 2) -> (804) \r\n
-  write(436 from 436) -> (368) batch branchmap bundle2=HG20%0Abookmarks%0Achangegroup%3D01%2C02%0Adigests%3Dmd5%2Csha1%2Csha512%0Aerror%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0Ahgtagsfnodes%0Alistkeys%0Apushkey%0Aremote-changegroup%3Dhttp%2Chttps%0Arev-branch-cache changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  write(436 from 436) -> (368) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n
   readline(-1) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n
   readline(-1) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (332) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (309) Server: badhttpserver\r\n
   write(37 from 37) -> (272) Date: $HTTP_DATE$\r\n
   write(41 from 41) -> (231) Content-Type: application/mercurial-0.1\r\n
   write(20 from 20) -> (211) Content-Length: 42\r\n
   write(2 from 2) -> (209) \r\n
   write(42 from 42) -> (167) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n;
   readline(65537) -> (30) GET /?cmd=getbundle HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n
   readline(-1) -> (461) x-hgarg-1: bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=96ee1d7354c4ad7372047672c36a1f561e3a6a4c&listkeys=phases%2Cbookmarks\r\n
   readline(-1) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (131) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (108) Server: badhttpserver\r\n
   write(37 from 37) -> (71) Date: $HTTP_DATE$\r\n
   write(41 from 41) -> (30) Content-Type: application/mercurial-0.2\r\n
   write(28 from 28) -> (2) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (0) \r\n
   write limit reached; closing socket
   write(36) -> HTTP/1.1 500 Internal Server Error\r\n
 
   $ rm -f error.log
 
 Server sends partial compression string
 
   $ hg serve --config badserver.closeaftersendbytes=988 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   abort: HTTP request error (incomplete response)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ cat error.log
   readline(65537) -> (33) GET /?cmd=capabilities HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (952) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (929) Server: badhttpserver\r\n
   write(37 from 37) -> (892) Date: $HTTP_DATE$\r\n
   write(41 from 41) -> (851) Content-Type: application/mercurial-0.1\r\n
   write(21 from 21) -> (830) Content-Length: 436\r\n
   write(2 from 2) -> (828) \r\n
-  write(436 from 436) -> (392) batch branchmap bundle2=HG20%0Abookmarks%0Achangegroup%3D01%2C02%0Adigests%3Dmd5%2Csha1%2Csha512%0Aerror%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0Ahgtagsfnodes%0Alistkeys%0Apushkey%0Aremote-changegroup%3Dhttp%2Chttps%0Arev-branch-cache changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  write(436 from 436) -> (392) batch branchmap $USUAL_BUNDLE2_CAPS_NO_PHASES$ changegroupsubset compression=none getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1 unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   readline(65537) -> (26) GET /?cmd=batch HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n
   readline(-1) -> (41) x-hgarg-1: cmds=heads+%3Bknown+nodes%3D\r\n
   readline(-1) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (356) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (333) Server: badhttpserver\r\n
   write(37 from 37) -> (296) Date: $HTTP_DATE$\r\n
   write(41 from 41) -> (255) Content-Type: application/mercurial-0.1\r\n
   write(20 from 20) -> (235) Content-Length: 42\r\n
   write(2 from 2) -> (233) \r\n
   write(42 from 42) -> (191) 96ee1d7354c4ad7372047672c36a1f561e3a6a4c\n;
   readline(65537) -> (30) GET /?cmd=getbundle HTTP/1.1\r\n
   readline(-1) -> (27) Accept-Encoding: identity\r\n
   readline(-1) -> (29) vary: X-HgArg-1,X-HgProto-1\r\n
   readline(-1) -> (461) x-hgarg-1: bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=96ee1d7354c4ad7372047672c36a1f561e3a6a4c&listkeys=phases%2Cbookmarks\r\n
   readline(-1) -> (61) x-hgproto-1: 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull\r\n
   readline(-1) -> (35) accept: application/mercurial-0.1\r\n
   readline(-1) -> (2?) host: localhost:$HGPORT\r\n (glob)
   readline(-1) -> (49) user-agent: mercurial/proto-1.0 (Mercurial 4.2)\r\n
   readline(-1) -> (2) \r\n
   write(36 from 36) -> (155) HTTP/1.1 200 Script output follows\r\n
   write(23 from 23) -> (132) Server: badhttpserver\r\n
   write(37 from 37) -> (95) Date: $HTTP_DATE$\r\n
   write(41 from 41) -> (54) Content-Type: application/mercurial-0.2\r\n
   write(28 from 28) -> (26) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (24) \r\n
   write(6 from 6) -> (18) 1\\r\\n\x04\\r\\n (esc)
   write(9 from 9) -> (9) 4\r\nnone\r\n
   write(9 from 9) -> (0) 4\r\nHG20\r\n
   write limit reached; closing socket
   write(27) -> 15\r\nInternal Server Error\r\n
 
   $ rm -f error.log
 
 Server sends partial bundle2 header magic
 
   $ hg serve --config badserver.closeaftersendbytes=985 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   abort: HTTP request error (incomplete response; expected 1 bytes got 3)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ tail -7 error.log
   write(28 from 28) -> (23) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (21) \r\n
   write(6 from 6) -> (15) 1\\r\\n\x04\\r\\n (esc)
   write(9 from 9) -> (6) 4\r\nnone\r\n
   write(6 from 9) -> (0) 4\r\nHG2
   write limit reached; closing socket
   write(27) -> 15\r\nInternal Server Error\r\n
 
   $ rm -f error.log
 
 Server sends incomplete bundle2 stream params length
 
   $ hg serve --config badserver.closeaftersendbytes=994 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   abort: HTTP request error (incomplete response; expected 1 bytes got 3)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ tail -8 error.log
   write(28 from 28) -> (32) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (30) \r\n
   write(6 from 6) -> (24) 1\\r\\n\x04\\r\\n (esc)
   write(9 from 9) -> (15) 4\r\nnone\r\n
   write(9 from 9) -> (6) 4\r\nHG20\r\n
   write(6 from 9) -> (0) 4\\r\\n\x00\x00\x00 (esc)
   write limit reached; closing socket
   write(27) -> 15\r\nInternal Server Error\r\n
 
   $ rm -f error.log
 
 Servers stops after bundle2 stream params header
 
   $ hg serve --config badserver.closeaftersendbytes=997 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   abort: HTTP request error (incomplete response)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ tail -8 error.log
   write(28 from 28) -> (35) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (33) \r\n
   write(6 from 6) -> (27) 1\\r\\n\x04\\r\\n (esc)
   write(9 from 9) -> (18) 4\r\nnone\r\n
   write(9 from 9) -> (9) 4\r\nHG20\r\n
   write(9 from 9) -> (0) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write limit reached; closing socket
   write(27) -> 15\r\nInternal Server Error\r\n
 
   $ rm -f error.log
 
 Server stops sending after bundle2 part header length
 
   $ hg serve --config badserver.closeaftersendbytes=1006 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   abort: HTTP request error (incomplete response)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ tail -9 error.log
   write(28 from 28) -> (44) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (42) \r\n
   write(6 from 6) -> (36) 1\\r\\n\x04\\r\\n (esc)
   write(9 from 9) -> (27) 4\r\nnone\r\n
   write(9 from 9) -> (18) 4\r\nHG20\r\n
   write(9 from 9) -> (9) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (0) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
   write limit reached; closing socket
   write(27) -> 15\r\nInternal Server Error\r\n
 
   $ rm -f error.log
 
 Server stops sending after bundle2 part header
 
   $ hg serve --config badserver.closeaftersendbytes=1053 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   adding changesets
   transaction abort!
   rollback completed
   abort: HTTP request error (incomplete response)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ tail -10 error.log
   write(28 from 28) -> (91) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (89) \r\n
   write(6 from 6) -> (83) 1\\r\\n\x04\\r\\n (esc)
   write(9 from 9) -> (74) 4\r\nnone\r\n
   write(9 from 9) -> (65) 4\r\nHG20\r\n
   write(9 from 9) -> (56) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (47) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
   write(47 from 47) -> (0) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
   write limit reached; closing socket
   write(27) -> 15\r\nInternal Server Error\r\n
 
   $ rm -f error.log
 
 Server stops after bundle2 part payload chunk size
 
   $ hg serve --config badserver.closeaftersendbytes=1074 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   adding changesets
   transaction abort!
   rollback completed
   abort: HTTP request error (incomplete response; expected 459 bytes got 7)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ tail -11 error.log
   write(2 from 2) -> (110) \r\n
   write(6 from 6) -> (104) 1\\r\\n\x04\\r\\n (esc)
   write(9 from 9) -> (95) 4\r\nnone\r\n
   write(9 from 9) -> (86) 4\r\nHG20\r\n
   write(9 from 9) -> (77) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (68) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
   write(47 from 47) -> (21) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
   write(9 from 9) -> (12) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
   write(12 from 473) -> (0) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1d (esc)
   write limit reached; closing socket
   write(27) -> 15\r\nInternal Server Error\r\n
 
   $ rm -f error.log
 
 Server stops sending in middle of bundle2 payload chunk
 
   $ hg serve --config badserver.closeaftersendbytes=1535 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   adding changesets
   transaction abort!
   rollback completed
   abort: HTTP request error (incomplete response)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ tail -12 error.log
   write(28 from 28) -> (573) Transfer-Encoding: chunked\r\n
   write(2 from 2) -> (571) \r\n
   write(6 from 6) -> (565) 1\\r\\n\x04\\r\\n (esc)
   write(9 from 9) -> (556) 4\r\nnone\r\n
   write(9 from 9) -> (547) 4\r\nHG20\r\n
   write(9 from 9) -> (538) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (529) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
   write(47 from 47) -> (482) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
   write(9 from 9) -> (473) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
   write(473 from 473) -> (0) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
   write limit reached; closing socket
   write(27) -> 15\r\nInternal Server Error\r\n
 
   $ rm -f error.log
 
 Server stops sending after 0 length payload chunk size
 
   $ hg serve --config badserver.closeaftersendbytes=1566 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   transaction abort!
   rollback completed
   abort: HTTP request error (incomplete response; expected 23 bytes got 9)
   (this may be an intermittent network failure; if the error persists, consider contacting the network or server operator)
   [255]
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ tail -13 error.log
   write(6 from 6) -> (596) 1\\r\\n\x04\\r\\n (esc)
   write(9 from 9) -> (587) 4\r\nnone\r\n
   write(9 from 9) -> (578) 4\r\nHG20\r\n
   write(9 from 9) -> (569) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (560) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
   write(47 from 47) -> (513) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
   write(9 from 9) -> (504) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
   write(473 from 473) -> (31) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (22) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (13) 4\\r\\n\x00\x00\x00 \\r\\n (esc)
   write(13 from 38) -> (0) 20\\r\\n\x08LISTKEYS (esc)
   write limit reached; closing socket
   write(27) -> 15\r\nInternal Server Error\r\n
 
   $ rm -f error.log
 
 Server stops sending after 0 part bundle part header (indicating end of bundle2 payload)
 This is before the 0 size chunked transfer part that signals end of HTTP response.
 
 #  $ hg serve --config badserver.closeaftersendbytes=1741 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ hg serve --config badserver.closeaftersendbytes=1848 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   new changesets 96ee1d7354c4
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ tail -22 error.log
   write(9 from 9) -> (851) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (842) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
   write(47 from 47) -> (795) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
   write(9 from 9) -> (786) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
   write(473 from 473) -> (313) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (304) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (295) 4\\r\\n\x00\x00\x00 \\r\\n (esc)
   write(38 from 38) -> (257) 20\\r\\n\x08LISTKEYS\x00\x00\x00\x01\x01\x00	\x06namespacephases\\r\\n (esc)
   write(9 from 9) -> (248) 4\\r\\n\x00\x00\x00:\\r\\n (esc)
   write(64 from 64) -> (184) 3a\r\n96ee1d7354c4ad7372047672c36a1f561e3a6a4c	1\npublishing	True\r\n
   write(9 from 9) -> (175) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (166) 4\\r\\n\x00\x00\x00#\\r\\n (esc)
   write(41 from 41) -> (125) 23\\r\\n\x08LISTKEYS\x00\x00\x00\x02\x01\x00		namespacebookmarks\\r\\n (esc)
   write(9 from 9) -> (116) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (107) 4\\r\\n\x00\x00\x00\x1d\\r\\n (esc)
   write(35 from 35) -> (72) 1d\\r\\n\x16cache:rev-branch-cache\x00\x00\x00\x03\x00\x00\\r\\n (esc)
   write(9 from 9) -> (63) 4\\r\\n\x00\x00\x00'\\r\\n (esc)
   write(45 from 45) -> (18) 27\\r\\n\x00\x00\x00\x07\x00\x00\x00\x01\x00\x00\x00\x00default\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\\r\\n (esc)
   write(9 from 9) -> (9) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (0) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write limit reached; closing socket
   write(27) -> 15\r\nInternal Server Error\r\n
 
   $ rm -f error.log
   $ rm -rf clone
 
 Server sends a size 0 chunked-transfer size without terminating \r\n
 
   $ hg serve --config badserver.closeaftersendbytes=1851 -p $HGPORT -d --pid-file=hg.pid -E error.log
   $ cat hg.pid > $DAEMON_PIDS
 
   $ hg clone http://localhost:$HGPORT/ clone
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   new changesets 96ee1d7354c4
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ killdaemons.py $DAEMON_PIDS
 
   $ tail -23 error.log
   write(9 from 9) -> (854) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (845) 4\\r\\n\x00\x00\x00)\\r\\n (esc)
   write(47 from 47) -> (798) 29\\r\\n\x0bCHANGEGROUP\x00\x00\x00\x00\x01\x01\x07\x02	\x01version02nbchanges1\\r\\n (esc)
   write(9 from 9) -> (789) 4\\r\\n\x00\x00\x01\xd2\\r\\n (esc)
   write(473 from 473) -> (316) 1d2\\r\\n\x00\x00\x00\xb2\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>6a3df4de388f3c4f8e28f4f9a814299a3cbb5f50\\ntest\\n0 0\\nfoo\\n\\ninitial\x00\x00\x00\x00\x00\x00\x00\xa1j=\xf4\xde8\x8f<O\x8e(\xf4\xf9\xa8\x14)\x9a<\xbb_P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00-foo\x00b80de5d138758541c5f05265ad144ab9fa86d1db\\n\x00\x00\x00\x00\x00\x00\x00\x07foo\x00\x00\x00h\xb8\\r\xe5\xd18u\x85A\xc5\xf0Re\xad\x14J\xb9\xfa\x86\xd1\xdb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\x00\x00\x00\x00\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (307) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (298) 4\\r\\n\x00\x00\x00 \\r\\n (esc)
   write(38 from 38) -> (260) 20\\r\\n\x08LISTKEYS\x00\x00\x00\x01\x01\x00	\x06namespacephases\\r\\n (esc)
   write(9 from 9) -> (251) 4\\r\\n\x00\x00\x00:\\r\\n (esc)
   write(64 from 64) -> (187) 3a\r\n96ee1d7354c4ad7372047672c36a1f561e3a6a4c	1\npublishing	True\r\n
   write(9 from 9) -> (178) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (169) 4\\r\\n\x00\x00\x00#\\r\\n (esc)
   write(41 from 41) -> (128) 23\\r\\n\x08LISTKEYS\x00\x00\x00\x02\x01\x00		namespacebookmarks\\r\\n (esc)
   write(9 from 9) -> (119) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (110) 4\\r\\n\x00\x00\x00\x1d\\r\\n (esc)
   write(35 from 35) -> (75) 1d\\r\\n\x16cache:rev-branch-cache\x00\x00\x00\x03\x00\x00\\r\\n (esc)
   write(9 from 9) -> (66) 4\\r\\n\x00\x00\x00'\\r\\n (esc)
   write(45 from 45) -> (21) 27\\r\\n\x00\x00\x00\x07\x00\x00\x00\x01\x00\x00\x00\x00default\x96\xee\x1dsT\xc4\xadsr\x04vr\xc3j\x1fV\x1e:jL\\r\\n (esc)
   write(9 from 9) -> (12) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(9 from 9) -> (3) 4\\r\\n\x00\x00\x00\x00\\r\\n (esc)
   write(3 from 5) -> (0) 0\r\n
   write limit reached; closing socket
   write(27) -> 15\r\nInternal Server Error\r\n
 
   $ rm -f error.log
   $ rm -rf clone