view tests/test-discovery-hidden-common.t @ 5619:5673730db8d5 stable

evolve: clean merge state when content divergence resolution has no changes

This patch backs out b723805d7fe1, which only hid the problem.

Usually mergestate is cleared (or should be cleared) when creating a new
changeset, but sometimes there are situations when there's nothing to commit.

When solving content divergence resulted in no changes and no new changesets
were created, mergestate was left untouched. That's a problem because sometimes
mergestate contains files with conflicts that were already resolved by user,
and such mergestate only applies to the current wdir parent. Since evolve has
already dealt with the current wdir parent successfully when it reached this
code, this is a good place to clean the mergestate.

test for discovery with some remote changesets hidden locally
=============================================================

  $ . $TESTDIR/testlib/common.sh

  $ cat << EOF >> $HGRCPATH
  > [phases]
  > publish = false
  > [extensions]
  > evolve =
  > [experimental]
  > verbose-obsolescence-exchange = 1
  > [ui]
  > logtemplate = "{rev} {node|short} {desc} {tags}\n"
  > ssh = "$PYTHON" "$RUNTESTDIR/dummyssh"
  > EOF

  $ hg init server
  $ hg clone ssh://user@dummy/server client
  no changes found
  updating to branch default
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd server
  $ mkcommit root
  $ mkcommit A0

second pull:

  $ hg -R ../client pull
  pulling from ssh://user@dummy/server
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  new changesets 1e4be0697311:8aaa48160adc (2 drafts)
  (run 'hg update' to get a working copy)
  $ hg -R ../client log -G
  o  1 8aaa48160adc A0 tip
  |
  o  0 1e4be0697311 root
  

more update

  $ hg tag --local stay-visible
  $ hg up 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit A1
  created new head
  $ hg debugobsolete `getid 'desc(A0)'` `getid 'desc(A1)'`
  1 new obsolescence markers
  obsoleted 1 changesets

second pull:

  $ hg -R ../client pull
  pulling from ssh://user@dummy/server
  searching for changes
  OBSEXC: looking for common markers in 2 nodes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  1 new obsolescence markers
  obsoleted 1 changesets
  new changesets f6082bc4ffef (1 drafts)
  (run 'hg heads' to see heads)
  $ hg -R ../client log -G
  o  2 f6082bc4ffef A1 tip
  |
  o  0 1e4be0697311 root
  

more update:

  $ hg up 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit A2
  created new head
  $ hg debugobsolete `getid 'desc(A1)'` `getid 'desc(A2)'`
  1 new obsolescence markers
  obsoleted 1 changesets

third pull:

  $ hg -R ../client pull
  pulling from ssh://user@dummy/server
  searching for changes
  OBSEXC: looking for common markers in 1 nodes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  1 new obsolescence markers
  obsoleted 1 changesets
  new changesets c1f8d089020f (1 drafts)
  (run 'hg heads' to see heads)
  $ hg -R ../client log -G
  o  3 c1f8d089020f A2 tip
  |
  o  0 1e4be0697311 root