Create an extension to test bundle2 with multiple changegroups

  $ cat > bundle2.py <<EOF

  > """

  > """

  > from mercurial import changegroup, discovery, exchange

  > 

  > def _getbundlechangegrouppart(bundler, repo, source, bundlecaps=None,

  >                               b2caps=None, heads=None, common=None,

  >                               **kwargs):

  >     # Create two changegroups given the common changesets and heads for the

  >     # changegroup part we are being requested. Use the parent of each head

  >     # in 'heads' as intermediate heads for the first changegroup.

  >     intermediates = [repo[r].p1().node() for r in heads]

  >     outgoing = discovery.outgoing(repo, common, intermediates)

  >     cg = changegroup.makechangegroup(repo, outgoing, b'01',

  >                                      source, bundlecaps=bundlecaps)

  >     bundler.newpart(b'output', data=b'changegroup1')

  >     bundler.newpart(b'changegroup', data=cg.getchunks())

  >     outgoing = discovery.outgoing(repo, common + intermediates, heads)

  >     cg = changegroup.makechangegroup(repo, outgoing, b'01',

  >                                      source, bundlecaps=bundlecaps)

  >     bundler.newpart(b'output', data=b'changegroup2')

  >     bundler.newpart(b'changegroup', data=cg.getchunks())

  > 

  > def _pull(repo, *args, **kwargs):

  >   pullop = _orig_pull(repo, *args, **kwargs)

  >   repo.ui.write(b'pullop.cgresult is %d\n' % pullop.cgresult)

  >   return pullop

  > 

  > _orig_pull = exchange.pull

  > exchange.pull = _pull

  > exchange.getbundle2partsmapping[b'changegroup'] = _getbundlechangegrouppart

  > EOF

  $ cat >> $HGRCPATH << EOF

  > [ui]

  > logtemplate={rev}:{node|short} {phase} {author} {bookmarks} {desc|firstline}

  > EOF

Start with a simple repository with a single commit

  $ hg init repo

  $ cd repo

  $ cat > .hg/hgrc << EOF

  > [extensions]

  > bundle2=$TESTTMP/bundle2.py

  > EOF

  $ echo A > A

  $ hg commit -A -m A -q

  $ cd ..

Clone

  $ hg clone -q repo clone

Add two linear commits

  $ cd repo

  $ echo B > B

  $ hg commit -A -m B -q

  $ echo C > C

  $ hg commit -A -m C -q

  $ cd ../clone

  $ cat >> .hg/hgrc <<EOF

  > [hooks]

  > EOF

Pull the new commits in the clone

  $ hg pull

  pulling from $TESTTMP/repo

  searching for changes

  remote: changegroup1

  adding changesets

  adding manifests

  adding file changes

  added 1 changesets with 1 changes to 1 files

  remote: changegroup2

  adding changesets

  adding manifests

  adding file changes

  added 1 changesets with 1 changes to 1 files

  new changesets 27547f69f254:f838bfaca5c7

  pullop.cgresult is 1

  (run 'hg update' to get a working copy)

  $ hg update

  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg log -G

  @  2:f838bfaca5c7 public test  C

  |

  o  1:27547f69f254 public test  B

  |

  o  0:4a2df7238c3b public test  A

Add more changesets with multiple heads to the original repository

  $ cd ../repo

  $ echo D > D

  $ hg commit -A -m D -q

  $ hg up -r 1

  0 files updated, 0 files merged, 2 files removed, 0 files unresolved

  $ echo E > E

  $ hg commit -A -m E -q

  $ echo F > F

  $ hg commit -A -m F -q

  $ hg up -r 1

  0 files updated, 0 files merged, 2 files removed, 0 files unresolved

  $ echo G > G

  $ hg commit -A -m G -q

  $ hg up -r 3

  2 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ echo H > H

  $ hg commit -A -m H -q

  $ hg log -G

  @  7:5cd59d311f65 draft test  H

  |

  | o  6:1d14c3ce6ac0 draft test  G

  | |

  | | o  5:7f219660301f draft test  F

  | | |

  | | o  4:8a5212ebc852 draft test  E

  | |/

  o |  3:b3325c91a4d9 draft test  D

  | |

  o |  2:f838bfaca5c7 draft test  C

  |/

  o  1:27547f69f254 draft test  B

  |

  o  0:4a2df7238c3b draft test  A

New heads are reported during transfer and properly accounted for in

pullop.cgresult

  $ cd ../clone

  $ hg pull

  pulling from $TESTTMP/repo

  searching for changes

  remote: changegroup1

  adding changesets

  adding manifests

  adding file changes

  added 2 changesets with 2 changes to 2 files (+1 heads)

  remote: changegroup2

  adding changesets

  adding manifests

  adding file changes

  added 3 changesets with 3 changes to 3 files (+1 heads)

  new changesets b3325c91a4d9:5cd59d311f65

  pullop.cgresult is 3

  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ hg log -G

  o  7:5cd59d311f65 public test  H

  |

  | o  6:1d14c3ce6ac0 public test  G

  | |

  | | o  5:7f219660301f public test  F

  | | |

  | | o  4:8a5212ebc852 public test  E

  | |/

  o |  3:b3325c91a4d9 public test  D

  | |

  @ |  2:f838bfaca5c7 public test  C

  |/

  o  1:27547f69f254 public test  B

  |

  o  0:4a2df7238c3b public test  A

Removing a head from the original repository by merging it

  $ cd ../repo

  $ hg merge -r 6 -q

  $ hg commit -m Merge

  $ echo I > I

  $ hg commit -A -m H -q

  $ hg log -G

  @  9:9d18e5bd9ab0 draft test  H

  |

  o    8:71bd7b46de72 draft test  Merge

  |\

  | o  7:5cd59d311f65 draft test  H

  | |

  o |  6:1d14c3ce6ac0 draft test  G

  | |

  | | o  5:7f219660301f draft test  F

  | | |

  +---o  4:8a5212ebc852 draft test  E

  | |

  | o  3:b3325c91a4d9 draft test  D

  | |

  | o  2:f838bfaca5c7 draft test  C

  |/

  o  1:27547f69f254 draft test  B

  |

  o  0:4a2df7238c3b draft test  A

Removed heads are reported during transfer and properly accounted for in

pullop.cgresult

  $ cd ../clone

  $ hg pull

  pulling from $TESTTMP/repo

  searching for changes

  remote: changegroup1

  adding changesets

  adding manifests

  adding file changes

  added 1 changesets with 0 changes to 0 files (-1 heads)

  remote: changegroup2

  adding changesets

  adding manifests

  adding file changes

  added 1 changesets with 1 changes to 1 files

  new changesets 71bd7b46de72:9d18e5bd9ab0