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Tests the resolution of content-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 45bf1312f454

  $ hg log -G

  @  4:45bf1312f454@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  4:45bf1312f454@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  4:45bf1312f454@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 73ff357d3975

  $ cd ..