Create an extension to test bundle2 API

  $ cat > bundle2.py << EOF

  > """A small extension to test bundle2 implementation

  > 

  > Current bundle2 implementation is far too limited to be used in any core

  > code. We still need to be able to test it while it grow up.

  > """

  > 

  > import sys

  > from mercurial import cmdutil

  > from mercurial import bundle2

  > cmdtable = {}

  > command = cmdutil.command(cmdtable)

  > 

  > @command('bundle2',

  >          [('', 'param', [], 'stream level parameter'),],

  >          '')

  > def cmdbundle2(ui, repo, **opts):

  >     """write a bundle2 container on standard ouput"""

  >     bundler = bundle2.bundle20()

  >     for p in opts['param']:

  >         p = p.split('=', 1)

  >         bundler.addparam(*p)

  > 

  >     for chunk in bundler.getchunks():

  >         ui.write(chunk)

  > 

  > @command('unbundle2', [], '')

  > def cmdunbundle2(ui, repo):

  >     """read a bundle2 container from standard input"""

  >     unbundler = bundle2.unbundle20(sys.stdin)

  >     ui.write('options count: %i\n' % len(unbundler.params))

  >     for key in sorted(unbundler.params):

  >         ui.write('- %s\n' % key)

  >         value = unbundler.params[key]

  >         if value is not None:

  >             ui.write('    %s\n' % value)

  >     parts = list(unbundler)

  >     ui.write('parts count:   %i\n' % len(parts))

  > EOF

  $ cat >> $HGRCPATH << EOF

  > [extensions]

  > bundle2=$TESTTMP/bundle2.py

  > EOF

The extension requires a repo (currently unused)

  $ hg init main

  $ cd main

  $ touch a

  $ hg add a

  $ hg commit -m 'a'

Empty bundle

=================

- no option

- no parts

Test bundling

  $ hg bundle2

  HG20\x00\x00\x00\x00 (no-eol) (esc)

Test unbundling

  $ hg bundle2 | hg unbundle2

  options count: 0

  parts count:   0

Test old style bundle are detected and refused

  $ hg bundle --all ../bundle.hg

  1 changesets found

  $ hg unbundle2 < ../bundle.hg

  abort: unknown bundle version 10

  [255]

Test parameters

=================

- some options

- no parts

advisory parameters, no value

-------------------------------

Simplest possible parameters form

Test generation simple option

  $ hg bundle2 --param 'caution'

  HG20\x00\x07caution\x00\x00 (no-eol) (esc)

Test unbundling

  $ hg bundle2 --param 'caution' | hg unbundle2

  options count: 1

  - caution

  parts count:   0

Test generation multiple option

  $ hg bundle2 --param 'caution' --param 'meal'

  HG20\x00\x0ccaution meal\x00\x00 (no-eol) (esc)

Test unbundling

  $ hg bundle2 --param 'caution' --param 'meal' | hg unbundle2

  options count: 2

  - caution

  - meal

  parts count:   0

advisory parameters, with value

-------------------------------

Test generation

  $ hg bundle2 --param 'caution' --param 'meal=vegan' --param 'elephants'

  HG20\x00\x1ccaution meal=vegan elephants\x00\x00 (no-eol) (esc)

Test unbundling

  $ hg bundle2 --param 'caution' --param 'meal=vegan' --param 'elephants' | hg unbundle2

  options count: 3

  - caution

  - elephants

  - meal

      vegan

  parts count:   0

parameter with special char in value

---------------------------------------------------

Test generation

  $ hg bundle2 --param 'e|! 7/=babar%#==tutu' --param simple

  HG20\x00)e%7C%21%207/=babar%25%23%3D%3Dtutu simple\x00\x00 (no-eol) (esc)