annotate tests/test-exchange-multi-source.t @ 51977:42a116f1cdc1

branchmap-v3: introduce a "stop_rev" argument to `headsrevs`

The `headsrevs` method of the revlog already have a `revs` argument to compute
the headrevs of a limited set of heads. However, it disable the use of the
native compiled code to compute the heads, which slows down the branchmap v3
code a lot.

The branchmap v3 usage is actually quite constrained as we will always only
ignores a part at the top of the graph. So we could be significantly faster.

We start by making small change to the python side to improve the situation and
introduce the new API. More collaboration with the native code are coming later.

This massively speedup operation and close most of the remaining gaps between
branchmap-v3 and branchmap-v2. especially on repository with many revs like
mozilla-try. A small overhead remains mostly because the `headrevs` logic
currently has some inefficiently. We will look into them from there.

### benchmark.name                                 = hg.command.unbundle
  # bin-env-vars.hg.py-re2-module                  = default
  # benchmark.variants.issue6528                   = disabled
  # benchmark.variants.resource-usage              = default
  # benchmark.variants.reuse-external-delta-parent = yes
  # benchmark.variants.revs                        = any-1-extra-rev
  # benchmark.variants.source                      = unbundle
  # benchmark.variants.validate                    = default
  # benchmark.variants.verbosity                   = quiet

 ## data-env-vars.name                             = netbeans-2018-08-01-zstd-sparse-revlog
  # bin-env-vars.hg.flavor                         = default
branch-v2:        0.233711  ~~~~~
branch-v3 before: 0.368769  (+57.79%, +0.14)
branch-v3 after:  0.239857   (+2.63%, +0.01)
  # bin-env-vars.hg.flavor                         = rust
branch-v2:        0.235230  ~~~~~
branch-v3 before: 0.372460  (+58.34%, +0.14)
branch-v3 after:  0.240972   (+2.44%, +0.01)
 ## data-env-vars.name                             = netbeans-2018-08-01-ds2-pnm
  # bin-env-vars.hg.flavor                         = rust
branch-v2:        0.255586  ~~~~~
branch-v3 before: 0.318907  (+24.78%, +0.06)
branch-v3 after:  0.268560   (+5.08%, +0.01)

 ## data-env-vars.name                             = mozilla-central-2024-03-22-zstd-sparse-revlog
  # bin-env-vars.hg.flavor                         = default
branch-v2:        0.339010  ~~~~~
branch-v3 before: 0.349752   (+3.17%, +0.01)
branch-v3 after:  0.349389   (+3.06%, +0.01)
  # bin-env-vars.hg.flavor                         = rust
branch-v2:        0.346525  ~~~~~
branch-v3 before: 0.354300   (+2.24%, +0.01)
branch-v3 after:  0.355661   (+2.64%, +0.01)
 ## data-env-vars.name                             = mozilla-central-2024-03-22-ds2-pnm
  # bin-env-vars.hg.flavor                         = rust
branch-v2:        0.380202  ~~~~~
branch-v3 before: 0.396293   (+4.23%, +0.02)
branch-v3 after:  0.408851   (+7.54%, +0.03)

 ## data-env-vars.name                             = mozilla-unified-2024-03-22-zstd-sparse-revlog
  # bin-env-vars.hg.flavor                         = default
branch-v2:        0.412165  ~~~~~
branch-v3 before: 0.424769   (+3.06%, +0.01)
branch-v3 after:  0.427782   (+3.79%, +0.02)
  # bin-env-vars.hg.flavor                         = rust
branch-v2:        0.412397  ~~~~~
branch-v3 before: 0.421796   (+2.28%, +0.01)
branch-v3 after:  0.422354   (+2.41%, +0.01)
 ## data-env-vars.name                             = mozilla-unified-2024-03-22-ds2-pnm
  # bin-env-vars.hg.flavor                         = rust
branch-v2:        0.429501  ~~~~~
branch-v3 before: 0.443849   (+3.34%, +0.01)
branch-v3 after:  0.443197   (+3.19%, +0.01)

 ## data-env-vars.name                             = mozilla-try-2024-03-26-zstd-sparse-revlog
  # bin-env-vars.hg.flavor                         = default
branch-v2:        3.403171  ~~~~~
branch-v3 before: 6.234055  (+83.18%, +2.83)
branch-v3 after:  3.819477  (+12.23%, +0.42)
  # bin-env-vars.hg.flavor                         = rust
branch-v2:        3.454876  ~~~~~
branch-v3 before: 6.307813  (+82.58%, +2.85)
branch-v3 after:  3.590284   (+3.92%, +0.14)
 ## data-env-vars.name                             = mozilla-try-2024-03-26-ds2-pnm
  # bin-env-vars.hg.flavor                         = rust
branch-v2:        3.465435  ~~~~~
branch-v3 before: 5.176076  (+49.36%, +1.71)
branch-v3 after:  3.633278   (+4.84%, +0.17)

====================================================
Test push/pull from multiple source at the same time
====================================================


Setup
=====

main repository
---------------

  $ . $RUNTESTDIR/testlib/common.sh
  $ hg init main-repo
  $ cd main-repo
  $ mkcommit A
  $ mkcommit B
  $ mkcommit C
  $ mkcommit D
  $ mkcommit E
  $ hg up 'desc(B)'
  0 files updated, 0 files merged, 3 files removed, 0 files unresolved
  $ mkcommit F
  created new head
  $ mkcommit G
  $ hg up 'desc(C)'
  1 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ mkcommit H
  created new head
  $ hg up null --quiet
  $ hg log -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  H 7
  |
  | o  E 4
  | |
  | o  D 3
  |/
  o  C 2
  |
  | o  G 6
  | |
  | o  F 5
  |/
  o  B 1
  |
  o  A 0
  
  $ cd ..

Various other repositories
--------------------------

  $ hg clone main-repo branch-E --rev 4 -U
  adding changesets
  adding manifests
  adding file changes
  added 5 changesets with 5 changes to 5 files
  new changesets 4a2df7238c3b:a603bfb5a83e
  $ hg clone main-repo branch-G --rev 6 -U
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 4 changes to 4 files
  new changesets 4a2df7238c3b:c521a06b234b
  $ hg clone main-repo branch-H --rev 7 -U
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 4 changes to 4 files
  new changesets 4a2df7238c3b:40faebb2ec45

Test simple bare operation
==========================

pull
----

  $ hg clone main-repo test-repo-bare --rev 0 -U
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets 4a2df7238c3b

  $ hg pull -R test-repo-bare ./branch-E ./branch-G ./branch-H
  pulling from ./branch-E
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 4 changes to 4 files
  new changesets 27547f69f254:a603bfb5a83e
  (run 'hg update' to get a working copy)
  pulling from ./branch-G
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files (+1 heads)
  new changesets 2f3a4c5c1417:c521a06b234b
  (run 'hg heads' to see heads, 'hg merge' to merge)
  pulling from ./branch-H
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  new changesets 40faebb2ec45
  (run 'hg heads .' to see heads, 'hg merge' to merge)
  $ hg log -R test-repo-bare -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  H 7
  |
  | o  E 4
  | |
  | o  D 3
  |/
  o  C 2
  |
  | o  G 6
  | |
  | o  F 5
  |/
  o  B 1
  |
  o  A 0
  

push
----

  $ cp -R ./branch-E ./branch-E-push
  $ cp -R ./branch-G ./branch-G-push
  $ cp -R ./branch-H ./branch-H-push
  $ hg out -G -R test-repo-bare ./branch-E-push ./branch-G-push ./branch-H-push
  comparing with ./branch-E-push
  searching for changes
  comparing with ./branch-G-push
  searching for changes
  comparing with ./branch-H-push
  searching for changes
  o  changeset:   7:40faebb2ec45
  |  tag:         tip
  |  parent:      2:f838bfaca5c7
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     H
  |
  | o  changeset:   6:c521a06b234b
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     G
  | |
  | o  changeset:   5:2f3a4c5c1417
  |    parent:      1:27547f69f254
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     F
  |
  | o  changeset:   4:a603bfb5a83e
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     E
  | |
  | o  changeset:   3:b3325c91a4d9
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     D
  |
  o  changeset:   2:f838bfaca5c7
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     C
  
  $ hg bundle -R test-repo-bare bundle.hg ./branch-E-push ./branch-G-push ./branch-H-push
  searching for changes
  searching for changes
  searching for changes
  6 changesets found
  $ hg push --force -R test-repo-bare ./branch-E-push ./branch-G-push ./branch-H-push
  pushing to ./branch-E-push
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 3 changes to 3 files (+2 heads)
  pushing to ./branch-G-push
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 4 changes to 4 files (+2 heads)
  pushing to ./branch-H-push
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 4 changes to 4 files (+2 heads)
  $ hg log -R ./branch-E-push -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  H 7
  |
  | o  E 4
  | |
  | o  D 3
  |/
  o  C 2
  |
  | o  G 6
  | |
  | o  F 5
  |/
  o  B 1
  |
  o  A 0
  
  $ hg log -R ./branch-G-push -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  H 7
  |
  | o  E 6
  | |
  | o  D 5
  |/
  o  C 4
  |
  | o  G 3
  | |
  | o  F 2
  |/
  o  B 1
  |
  o  A 0
  
  $ hg log -R ./branch-H-push -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  G 7
  |
  o  F 6
  |
  | o  E 5
  | |
  | o  D 4
  | |
  | | o  H 3
  | |/
  | o  C 2
  |/
  o  B 1
  |
  o  A 0
  
  $ rm -rf ./*-push

Test operation with a target
============================

pull
----

  $ hg clone main-repo test-repo-rev --rev 0 -U
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets 4a2df7238c3b

pulling an explicite revision

  $ node_b=`hg log -R main-repo --rev 'desc(B)' -T '{node}'`
  $ hg pull -R test-repo-rev ./branch-E ./branch-G ./branch-H --rev $node_b
  pulling from ./branch-E
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets 27547f69f254
  (run 'hg update' to get a working copy)
  pulling from ./branch-G
  no changes found
  pulling from ./branch-H
  no changes found
  $ hg log -R test-repo-rev -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  B 1
  |
  o  A 0
  

pulling a branch head, the branch head resolve to different revision on the
different repositories.

  $ hg pull -R test-repo-rev ./branch-E ./branch-G ./branch-H --rev default
  pulling from ./branch-E
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 3 changes to 3 files
  new changesets f838bfaca5c7:a603bfb5a83e
  (run 'hg update' to get a working copy)
  pulling from ./branch-G
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files (+1 heads)
  new changesets 2f3a4c5c1417:c521a06b234b
  (run 'hg heads' to see heads, 'hg merge' to merge)
  pulling from ./branch-H
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  new changesets 40faebb2ec45
  (run 'hg heads .' to see heads, 'hg merge' to merge)
  $ hg log -R test-repo-rev -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  H 7
  |
  | o  E 4
  | |
  | o  D 3
  |/
  o  C 2
  |
  | o  G 6
  | |
  | o  F 5
  |/
  o  B 1
  |
  o  A 0
  

push
----

We only push a specific branch with --rev

  $ cp -R ./branch-E ./branch-E-push
  $ cp -R ./branch-G ./branch-G-push
  $ cp -R ./branch-H ./branch-H-push
  $ hg out -G -R test-repo-bare ./branch-E-push ./branch-G-push ./branch-H-push --rev default
  comparing with ./branch-E-push
  searching for changes
  comparing with ./branch-G-push
  searching for changes
  comparing with ./branch-H-push
  searching for changes
  no changes found
  o  changeset:   7:40faebb2ec45
  |  tag:         tip
  |  parent:      2:f838bfaca5c7
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     H
  |
  o  changeset:   2:f838bfaca5c7
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     C
  
  $ hg bundle -R test-repo-bare bundle.hg ./branch-E-push ./branch-G-push ./branch-H-push --rev default
  searching for changes
  searching for changes
  searching for changes
  2 changesets found
  $ hg push --force -R test-repo-bare ./branch-E-push ./branch-G-push ./branch-H-push --rev default
  pushing to ./branch-E-push
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  pushing to ./branch-G-push
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files (+1 heads)
  pushing to ./branch-H-push
  searching for changes
  no changes found
  $ hg log -R ./branch-E-push -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  H 5
  |
  | o  E 4
  | |
  | o  D 3
  |/
  o  C 2
  |
  o  B 1
  |
  o  A 0
  
  $ hg log -R ./branch-G-push -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  H 5
  |
  o  C 4
  |
  | o  G 3
  | |
  | o  F 2
  |/
  o  B 1
  |
  o  A 0
  
  $ hg log -R ./branch-H-push -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  H 3
  |
  o  C 2
  |
  o  B 1
  |
  o  A 0
  
  $ rm -rf ./*-push

Same push, but the first one is a no-op

  $ cp -R ./branch-E ./branch-E-push
  $ cp -R ./branch-G ./branch-G-push
  $ cp -R ./branch-H ./branch-H-push
  $ hg out -G -R test-repo-bare ./branch-G-push ./branch-H-push ./branch-E-push --rev default
  comparing with ./branch-G-push
  searching for changes
  comparing with ./branch-H-push
  searching for changes
  no changes found
  comparing with ./branch-E-push
  searching for changes
  o  changeset:   7:40faebb2ec45
  |  tag:         tip
  |  parent:      2:f838bfaca5c7
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     H
  |
  o  changeset:   2:f838bfaca5c7
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     C
  
  $ hg bundle -R test-repo-bare bundle.hg ./branch-G-push ./branch-H-push ./branch-E-push --rev default
  searching for changes
  searching for changes
  searching for changes
  2 changesets found
  $ hg push --force -R test-repo-bare ./branch-G-push ./branch-H-push ./branch-E-push --rev default
  pushing to ./branch-G-push
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files (+1 heads)
  pushing to ./branch-H-push
  searching for changes
  no changes found
  pushing to ./branch-E-push
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  $ hg log -R ./branch-E-push -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  H 5
  |
  | o  E 4
  | |
  | o  D 3
  |/
  o  C 2
  |
  o  B 1
  |
  o  A 0
  
  $ hg log -R ./branch-G-push -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  H 5
  |
  o  C 4
  |
  | o  G 3
  | |
  | o  F 2
  |/
  o  B 1
  |
  o  A 0
  
  $ hg log -R ./branch-H-push -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  H 3
  |
  o  C 2
  |
  o  B 1
  |
  o  A 0
  
  $ rm -rf ./*-push


Test with --update
==================

update without conflicts
------------------------

  $ hg clone main-repo test-repo-update --rev 0
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets 4a2df7238c3b
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

We update for each pull, so the first on get into a branch independant from the
other and stay there. This is the expected behavior.

  $ hg log -R test-repo-update -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  @  A 0
  
  $ hg pull -R test-repo-update ./branch-E ./branch-G ./branch-H --update
  pulling from ./branch-E
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 4 changes to 4 files
  new changesets 27547f69f254:a603bfb5a83e
  4 files updated, 0 files merged, 0 files removed, 0 files unresolved
  pulling from ./branch-G
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files (+1 heads)
  new changesets 2f3a4c5c1417:c521a06b234b
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  updated to "a603bfb5a83e: E"
  1 other heads for branch "default"
  pulling from ./branch-H
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  new changesets 40faebb2ec45
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  updated to "a603bfb5a83e: E"
  2 other heads for branch "default"
  $ hg log -R test-repo-update -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  o  H 7
  |
  | @  E 4
  | |
  | o  D 3
  |/
  o  C 2
  |
  | o  G 6
  | |
  | o  F 5
  |/
  o  B 1
  |
  o  A 0
  

update with conflicts
---------------------

  $ hg clone main-repo test-repo-conflict --rev 0
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets 4a2df7238c3b
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

The update has conflict and interrupt the pull.

  $ echo this-will-conflict > test-repo-conflict/D
  $ hg add -R test-repo-conflict test-repo-conflict/D
  $ hg log -R test-repo-conflict -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  @  A 0
  
  $ hg pull -R test-repo-conflict ./branch-E ./branch-G ./branch-H --update
  pulling from ./branch-E
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 4 changes to 4 files
  new changesets 27547f69f254:a603bfb5a83e
  merging D
  warning: conflicts while merging D! (edit, then use 'hg resolve --mark')
  3 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges
  [1]
  $ hg -R test-repo-conflict resolve -l
  U D
  $ hg log -R test-repo-conflict -T '{desc} {rev}\n' --rev 'sort(all(), "topo")' -G
  @  E 4
  |
  o  D 3
  |
  o  C 2
  |
  o  B 1
  |
  %  A 0
  

Testing multi-path definition
----------------------------

  $ hg clone main-repo repo-paths --rev 0
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets 4a2df7238c3b
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cp -R ./branch-E ./branch-E-paths
  $ cp -R ./branch-G ./branch-G-paths
  $ cp -R ./branch-H ./branch-H-paths
  $ cat << EOF >> repo-paths/.hg/hgrc
  > [paths]
  > E=../branch-E-paths
  > G=../branch-G-paths
  > H=../branch-H-paths
  > EHG=path://E,path://H,path://G
  > EHG:multi-urls=yes
  > GEH=path://G,path://E,path://H
  > GEH:multi-urls=yes
  > EOF

Do various operations and verify that order matters

  $ hg -R repo-paths push EHG --force
  pushing to $TESTTMP/branch-E-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-H-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-G-paths
  searching for changes
  no changes found
  [1]
  $ hg -R repo-paths push GEH --force
  pushing to $TESTTMP/branch-G-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-E-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-H-paths
  searching for changes
  no changes found
  [1]
  $ hg -R repo-paths push EHG GEH --force
  pushing to $TESTTMP/branch-E-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-H-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-G-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-G-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-E-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-H-paths
  searching for changes
  no changes found
  [1]
  $ hg -R repo-paths pull EHG
  pulling from $TESTTMP/branch-E-paths
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 4 changes to 4 files
  new changesets 27547f69f254:a603bfb5a83e
  (run 'hg update' to get a working copy)
  pulling from $TESTTMP/branch-H-paths
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  new changesets 40faebb2ec45
  (run 'hg heads' to see heads, 'hg merge' to merge)
  pulling from $TESTTMP/branch-G-paths
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files (+1 heads)
  new changesets 2f3a4c5c1417:c521a06b234b
  (run 'hg heads .' to see heads, 'hg merge' to merge)
  $ hg -R repo-paths pull GEH
  pulling from $TESTTMP/branch-G-paths
  searching for changes
  no changes found
  pulling from $TESTTMP/branch-E-paths
  searching for changes
  no changes found
  pulling from $TESTTMP/branch-H-paths
  searching for changes
  no changes found
  $ hg -R repo-paths pull EHG GEH
  pulling from $TESTTMP/branch-E-paths
  searching for changes
  no changes found
  pulling from $TESTTMP/branch-H-paths
  searching for changes
  no changes found
  pulling from $TESTTMP/branch-G-paths
  searching for changes
  no changes found
  pulling from $TESTTMP/branch-G-paths
  searching for changes
  no changes found
  pulling from $TESTTMP/branch-E-paths
  searching for changes
  no changes found
  pulling from $TESTTMP/branch-H-paths
  searching for changes
  no changes found
  $ hg -R repo-paths push EHG --force
  pushing to $TESTTMP/branch-E-paths
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 3 changes to 3 files (+2 heads)
  pushing to $TESTTMP/branch-H-paths
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 4 changes to 4 files (+2 heads)
  pushing to $TESTTMP/branch-G-paths
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 4 changes to 4 files (+2 heads)
  $ hg -R repo-paths push GEH --force
  pushing to $TESTTMP/branch-G-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-E-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-H-paths
  searching for changes
  no changes found
  [1]
  $ hg -R repo-paths push EHG GEH --force
  pushing to $TESTTMP/branch-E-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-H-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-G-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-G-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-E-paths
  searching for changes
  no changes found
  pushing to $TESTTMP/branch-H-paths
  searching for changes
  no changes found
  [1]