view tests/test-divergent.t @ 3831:987e335dbe11

evolve: store the obsmarkers to be deleted in evolvestate

Sometimes, we don't create a new node and obsolete one of the old node in favour
of an existing node. When user calls, `hg evolve --abort`, we need to strip that
obsmarker to go back in the same old state. The obsmarker created for new node
are stripped when the new nodes are stripped.

This patch start storing such obsmarkers in the evolvestate so that we can delete
them later if required. Right now we just store successsor and predecessor
information, we might need a better obsmarker serialization techinque in future
to make it more robust.

Tests the resolution of divergence

  $ cat >> $HGRCPATH <<EOF
  > [defaults]
  > amend=-d "0 0"
  > fold=-d "0 0"
  > [web]
  > push_ssl = false
  > allow_push = *
  > [phases]
  > publish = False
  > [diff]
  > git = 1
  > unified = 0
  > [ui]
  > logtemplate = {rev}:{node|short}@{branch}({phase}) {desc|firstline} [{troubles}]\n
  > [extensions]
  > EOF
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH
  $ mkcommit() {
  >    echo "$1" > "$1"
  >    hg add "$1"
  >    hg ci -m "add $1"
  > }

  $ mkcommits() {
  >   for i in $@; do mkcommit $i ; done
  > }

Basic test of divergence: two divergent changesets with the same parents
With --all --any we dedupe the divergent and solve the divergence once

  $ hg init test1
  $ cd test1
  $ echo a > a
  $ hg ci -Aqm "added a"
  $ echo b > b
  $ hg ci -Aqm "added b"

  $ hg up .^
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo bdivergent > bdivergent1
  $ hg ci -Am "divergent"
  adding bdivergent1
  created new head

  $ hg up .^
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo bdivergent > bdivergent2
  $ hg ci -Am "divergent"
  adding bdivergent2
  created new head

  $ hg prune -s 8374d2ddc3a4 "desc('added b')"
  1 changesets pruned
  $ hg prune -s 593c57f2117e "desc('added b')" --hidden
  1 changesets pruned
  2 new content-divergent changesets

  $ hg log -G
  @  3:8374d2ddc3a4@default(draft) divergent [content-divergent]
  |
  | *  2:593c57f2117e@default(draft) divergent [content-divergent]
  |/
  o  0:9092f1db7931@default(draft) added a []
  

  $ hg evolve --all --any --content-divergent
  merge:[2] divergent
  with: [3] divergent
  base: [1] added b
  updating to "local" side of the conflict: 593c57f2117e
  merging "other" content-divergent changeset '8374d2ddc3a4'
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory is now at d52878315036
  $ hg log -G
  @  4:d52878315036@default(draft) divergent []
  |
  o  0:9092f1db7931@default(draft) added a []
  
Test divergence resolution when it yields to an empty commit (issue4950)
cdivergent2 contains the same content than cdivergent1 and they are divergent
versions of the revision _c

  $ hg up .^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ mkcommit _c
  created new head

  $ hg up .^
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit cdivergent1
  created new head

  $ hg up .^
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo "cdivergent1" > cdivergent1
  $ hg add cdivergent1
  $ hg ci -m "add _c"
  created new head

  $ hg log -G
  @  7:b2ae71172042@default(draft) add _c []
  |
  | o  6:e3ff64ce8d4c@default(draft) add cdivergent1 []
  |/
  | o  5:48819a835615@default(draft) add _c []
  |/
  | o  4:d52878315036@default(draft) divergent []
  |/
  o  0:9092f1db7931@default(draft) added a []
  

  $ hg prune -s b2ae71172042 48819a835615
  1 changesets pruned
  $ hg prune -s e3ff64ce8d4c 48819a835615 --hidden
  1 changesets pruned
  2 new content-divergent changesets

  $ hg log -G
  @  7:b2ae71172042@default(draft) add _c [content-divergent]
  |
  | *  6:e3ff64ce8d4c@default(draft) add cdivergent1 [content-divergent]
  |/
  | o  4:d52878315036@default(draft) divergent []
  |/
  o  0:9092f1db7931@default(draft) added a []
  
  $ hg evolve --all --any --content-divergent
  merge:[6] add cdivergent1
  with: [7] add _c
  base: [5] add _c
  updating to "local" side of the conflict: e3ff64ce8d4c
  merging "other" content-divergent changeset 'b2ae71172042'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  nothing changed
  working directory is now at e3ff64ce8d4c

  $ cd ..

Test None docstring issue of evolve divergent, which caused hg crush

  $ hg init test2
  $ cd test2
  $ mkcommits _a _b

  $ hg up .^
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo bdivergent > bdivergent11
  $ hg ci -Am "bdivergent"
  adding bdivergent11
  created new head

  $ hg up .^
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo bdivergent > bdivergent22
  $ hg ci -Am "bdivergent"
  adding bdivergent22
  created new head

  $ hg log -G
  @  3:6b096fb45070@default(draft) bdivergent []
  |
  | o  2:05a6b6a9e633@default(draft) bdivergent []
  |/
  | o  1:37445b16603b@default(draft) add _b []
  |/
  o  0:135f39f4bd78@default(draft) add _a []
  

  $ hg prune -s 6b096fb45070 37445b16603b
  1 changesets pruned
  $ hg prune -s 05a6b6a9e633 37445b16603b --hidden
  1 changesets pruned
  2 new content-divergent changesets
  $ hg log -G
  @  3:6b096fb45070@default(draft) bdivergent [content-divergent]
  |
  | *  2:05a6b6a9e633@default(draft) bdivergent [content-divergent]
  |/
  o  0:135f39f4bd78@default(draft) add _a []
  

  $ cat >$TESTTMP/test_extension.py  << EOF
  > from mercurial import merge
  > origupdate = merge.update
  > def newupdate(*args, **kwargs):
  >   return origupdate(*args, **kwargs)
  > merge.update = newupdate
  > EOF
  $ cat >> $HGRCPATH << EOF
  > [extensions]
  > testextension=$TESTTMP/test_extension.py
  > EOF
  $ hg evolve --all
  nothing to evolve on current working copy parent
  (do you want to use --content-divergent)
  [2]
  $ hg evolve --content-divergent
  merge:[3] bdivergent
  with: [2] bdivergent
  base: [1] add _b
  merging "other" content-divergent changeset '05a6b6a9e633'
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory is now at 1155f059af3f

  $ cd ..