view tests/test-clone-uncompressed.t @ 28601:cd10171d6c71

graphmod: allow edges to end early Rather than draw an edge all the way to the bottom of the graph, make it possible to end an edge to parents that are not part of the graph early on. This results in a far cleaner graph. Any edge type can be set to end early; set the ui.graphstyle.<edgetype> parameter to the empty string to enable this. For example, setting the following configuration: [ui] graphstyle.grandparent = : graphstyle.missing = would result in a graph like this: o changeset: 32:d06dffa21a31 |\ parent: 27:886ed638191b | : parent: 31:621d83e11f67 | : o : changeset: 31:621d83e11f67 |\: parent: 21:d42a756af44d | : parent: 30:6e11cd4b648f | : o : changeset: 30:6e11cd4b648f |\ \ parent: 28:44ecd0b9ae99 | ~ : parent: 29:cd9bb2be7593 | / o : changeset: 28:44ecd0b9ae99 |\ \ parent: 1:6db2ef61d156 | ~ : parent: 26:7f25b6c2f0b9 | / o : changeset: 26:7f25b6c2f0b9 |\ \ parent: 18:1aa84d96232a | | : parent: 25:91da8ed57247 | | : | o : changeset: 25:91da8ed57247 | |\: parent: 21:d42a756af44d | | : parent: 24:a9c19a3d96b7 | | : | o : changeset: 24:a9c19a3d96b7 | |\ \ parent: 0:e6eb3150255d | | ~ : parent: 23:a01cddf0766d | | / | o : changeset: 23:a01cddf0766d | |\ \ parent: 1:6db2ef61d156 | | ~ : parent: 22:e0d9cccacb5d | | / | o : changeset: 22:e0d9cccacb5d |/:/ parent: 18:1aa84d96232a | : parent: 21:d42a756af44d | : | o changeset: 21:d42a756af44d | |\ parent: 19:31ddc2c1573b | | | parent: 20:d30ed6450e32 | | | +---o changeset: 20:d30ed6450e32 | | | parent: 0:e6eb3150255d | | ~ parent: 18:1aa84d96232a | | | o changeset: 19:31ddc2c1573b | |\ parent: 15:1dda3f72782d | ~ ~ parent: 17:44765d7c06e0 | o changeset: 18:1aa84d96232a parent: 1:6db2ef61d156 parent: 15:1dda3f72782d The default configuration leaves all 3 types set to |. This is part of the work towards moving smartlog upstream; currently smartlog injects extra nodes into the graph to indicate grandparent relationships (nodes elided).
author Martijn Pieters <mjpieters@fb.com>
date Sat, 19 Mar 2016 16:37:47 -0700
parents aa440c3d7c5d
children 9dc27a334fb1
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#require serve

Initialize repository
the status call is to check for issue5130

  $ hg init server
  $ cd server
  $ touch foo
  $ hg -q commit -A -m initial
  >>> for i in range(1024):
  ...     with open(str(i), 'wb') as fh:
  ...         fh.write(str(i))
  $ hg -q commit -A -m 'add a lot of files'
  $ hg st
  $ hg serve -p $HGPORT -d --pid-file=hg.pid
  $ cat hg.pid >> $DAEMON_PIDS
  $ cd ..

Basic clone

  $ hg clone --uncompressed -U http://localhost:$HGPORT clone1
  streaming all changes
  1027 files to transfer, 96.3 KB of data
  transferred 96.3 KB in * seconds (*/sec) (glob)
  searching for changes
  no changes found

Clone with background file closing enabled

  $ hg --debug --config worker.backgroundclose=true --config worker.backgroundcloseminfilecount=1 clone --uncompressed -U http://localhost:$HGPORT clone-background | grep -v adding
  using http://localhost:$HGPORT/
  sending capabilities command
  sending branchmap command
  streaming all changes
  sending stream_out command
  1027 files to transfer, 96.3 KB of data
  starting 4 threads for background file closing
  transferred 96.3 KB in * seconds (*/sec) (glob)
  query 1; heads
  sending batch command
  searching for changes
  all remote heads known locally
  no changes found
  sending getbundle command
  bundle2-input-bundle: with-transaction
  bundle2-input-part: "listkeys" (params: 1 mandatory) supported
  bundle2-input-part: "listkeys" (params: 1 mandatory) supported
  bundle2-input-bundle: 1 parts total
  checking for updated bookmarks
  preparing listkeys for "phases"
  sending listkeys command
  received listkey for "phases": 58 bytes


Stream clone while repo is changing:

  $ mkdir changing
  $ cd changing

extension for delaying the server process so we reliably can modify the repo
while cloning

  $ cat > delayer.py <<EOF
  > import time
  > from mercurial import extensions, scmutil
  > def __call__(orig, self, path, *args, **kwargs):
  >     if path == 'data/f1.i':
  >         time.sleep(2)
  >     return orig(self, path, *args, **kwargs)
  > extensions.wrapfunction(scmutil.vfs, '__call__', __call__)
  > EOF

prepare repo with small and big file to cover both code paths in emitrevlogdata

  $ hg init repo
  $ touch repo/f1
  $ $TESTDIR/seq.py 50000 > repo/f2
  $ hg -R repo ci -Aqm "0"
  $ hg -R repo serve -p $HGPORT1 -d --pid-file=hg.pid --config extensions.delayer=delayer.py
  $ cat hg.pid >> $DAEMON_PIDS

clone while modifying the repo between stating file with write lock and
actually serving file content

  $ hg clone -q --uncompressed -U http://localhost:$HGPORT1 clone &
  $ sleep 1
  $ echo >> repo/f1
  $ echo >> repo/f2
  $ hg -R repo ci -m "1"
  $ wait
  $ hg -R clone id
  000000000000