view tests/test-evolve-content-divergent-stack.t @ 4728:ef8907df73fc stable

touch: fix the inconsistent behavior of divergence catching logic (issue6107)

When touching a node, the way we check if it can lead to divergence
is we look at the successors sets of the rev being touched. And if
there is successor revs exists (excluding the case when that successor
set is (A,) for rev A) that means there will be divergence and we warn
the user.
This works fine but there is still a case (which is not covered by looking
at successor sets) which can lead to divergence.

That case is: when there is already a revision exists which is divergent
to the revision being touched. And performing the touch would revive
that "dead" divergence. (Dead because one of the revision is obsolete which
is the one we are touching)

And to see if there is any rev which is divergent to a particular rev
we already have a function which we can use here
i.e. `evolvecmd.divergentsets(repo, ctx_being_touched)`

Changes in test file demonstrate the fixed behaviour.

=================================================
Tests the resolution of content divergence: stack
=================================================

This file intend to cover case with stacks of divergent changesets

  $ cat >> $HGRCPATH <<EOF
  > [alias]
  > glog = log -GT "{rev}:{node|short} {desc|firstline}\n ({bookmarks}) [{branch}] {phase}"
  > [phases]
  > publish = False
  > [extensions]
  > rebase =
  > EOF
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH

Resolving content-divergence of a stack with same parents
---------------------------------------------------------

  $ hg init stacktest
  $ cd stacktest
  $ echo ".*\.orig" > .hgignore
  $ hg add .hgignore
  $ hg ci -m "added hgignore"
  $ for ch in a b c d; do echo foo > $ch; hg add $ch; hg ci -qm "added "$ch; done;

  $ hg glog
  @  4:c41c793e0ef1 added d
  |   () [default] draft
  o  3:ca1b80f7960a added c
  |   () [default] draft
  o  2:b1661037fa25 added b
  |   () [default] draft
  o  1:c7586e2a9264 added a
  |   () [default] draft
  o  0:8fa14d15e168 added hgignore
      () [default] draft

  $ cd ..
  $ hg init stack2
  $ cd stack2
  $ hg pull ../stacktest
  pulling from ../stacktest
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 5 changesets with 5 changes to 5 files
  new changesets 8fa14d15e168:c41c793e0ef1 (5 drafts)
  (run 'hg update' to get a working copy)
  $ hg glog
  o  4:c41c793e0ef1 added d
  |   () [default] draft
  o  3:ca1b80f7960a added c
  |   () [default] draft
  o  2:b1661037fa25 added b
  |   () [default] draft
  o  1:c7586e2a9264 added a
  |   () [default] draft
  o  0:8fa14d15e168 added hgignore
      () [default] draft

  $ hg up c7586e2a9264
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo bar > a
  $ hg amend -m "watbar to a"
  3 new orphan changesets
  $ echo wat > a
  $ hg amend -m "watbar to a"
  $ hg evolve --all
  move:[2] added b
  atop:[6] watbar to a
  move:[3] added c
  move:[4] added d
  $ hg glog
  o  9:15c781f93cac added d
  |   () [default] draft
  o  8:9e5fb1d5b955 added c
  |   () [default] draft
  o  7:88516dccf68a added b
  |   () [default] draft
  @  6:82b74d5dc678 watbar to a
  |   () [default] draft
  o  0:8fa14d15e168 added hgignore
      () [default] draft

  $ cd ../stacktest
  $ hg up .^^^
  0 files updated, 0 files merged, 3 files removed, 0 files unresolved
  $ echo wat > a
  $ hg amend -m "watbar to a"
  3 new orphan changesets
  $ hg evolve --all
  move:[2] added b
  atop:[5] watbar to a
  move:[3] added c
  move:[4] added d
  $ hg glog
  o  8:c72d2885eb51 added d
  |   () [default] draft
  o  7:3ce4be6d8e5e added c
  |   () [default] draft
  o  6:d5f148423c16 added b
  |   () [default] draft
  @  5:8e222f257bbf watbar to a
  |   () [default] draft
  o  0:8fa14d15e168 added hgignore
      () [default] draft

  $ hg pull ../stack2
  pulling from ../stack2
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 0 changes to 4 files (+1 heads)
  5 new obsolescence markers
  8 new content-divergent changesets
  new changesets 82b74d5dc678:15c781f93cac (4 drafts)
  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ hg glog
  *  12:15c781f93cac added d
  |   () [default] draft
  *  11:9e5fb1d5b955 added c
  |   () [default] draft
  *  10:88516dccf68a added b
  |   () [default] draft
  *  9:82b74d5dc678 watbar to a
  |   () [default] draft
  | *  8:c72d2885eb51 added d
  | |   () [default] draft
  | *  7:3ce4be6d8e5e added c
  | |   () [default] draft
  | *  6:d5f148423c16 added b
  | |   () [default] draft
  | @  5:8e222f257bbf watbar to a
  |/    () [default] draft
  o  0:8fa14d15e168 added hgignore
      () [default] draft

  $ hg evolve --all --content-divergent
  merge:[5] watbar to a
  with: [9] watbar to a
  base: [1] added a
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  merge:[6] added b
  with: [10] added b
  base: [2] added b
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  merge:[7] added c
  with: [11] added c
  base: [3] added c
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  merge:[8] added d
  with: [12] added d
  base: [4] added d
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory is now at f66f262fff6c

  $ hg glog
  o  16:038fe7db3d88 added d
  |   () [default] draft
  o  15:b2cac10f3836 added c
  |   () [default] draft
  o  14:eadfd9d70680 added b
  |   () [default] draft
  @  13:f66f262fff6c watbar to a
  |   () [default] draft
  o  0:8fa14d15e168 added hgignore
      () [default] draft
Resolving content-divergence of a stack with different parents
---------------------------------------------------------

  $ cd ..
  $ hg init stackrepo1
  $ cd stackrepo1
  $ echo ".*\.orig" > .hgignore
  $ hg add .hgignore
  $ hg ci -m "added hgignore"

  $ for ch in a b c d;
  > do echo foo > $ch;
  > hg add $ch;
  > hg ci -qm "added "$ch;
  > done;

  $ hg glog
  @  4:c41c793e0ef1 added d
  |   () [default] draft
  o  3:ca1b80f7960a added c
  |   () [default] draft
  o  2:b1661037fa25 added b
  |   () [default] draft
  o  1:c7586e2a9264 added a
  |   () [default] draft
  o  0:8fa14d15e168 added hgignore
      () [default] draft

  $ cd ..
  $ hg init stackrepo2
  $ cd stackrepo2
  $ hg pull ../stackrepo1
  pulling from ../stackrepo1
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 5 changesets with 5 changes to 5 files
  new changesets 8fa14d15e168:c41c793e0ef1 (5 drafts)
  (run 'hg update' to get a working copy)

  $ hg glog
  o  4:c41c793e0ef1 added d
  |   () [default] draft
  o  3:ca1b80f7960a added c
  |   () [default] draft
  o  2:b1661037fa25 added b
  |   () [default] draft
  o  1:c7586e2a9264 added a
  |   () [default] draft
  o  0:8fa14d15e168 added hgignore
      () [default] draft

  $ hg up 8fa14d15e168
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo newfile > newfile
  $ hg ci -Am "add newfile"
  adding newfile
  created new head
  $ hg rebase -s c7586e2a9264 -d .
  rebasing 1:c7586e2a9264 "added a"
  rebasing 2:b1661037fa25 "added b"
  rebasing 3:ca1b80f7960a "added c"
  rebasing 4:c41c793e0ef1 "added d"

  $ hg glog
  o  9:d45f050514c2 added d
  |   () [default] draft
  o  8:8ed612937375 added c
  |   () [default] draft
  o  7:6eb54b5af3fb added b
  |   () [default] draft
  o  6:c04ff147ef79 added a
  |   () [default] draft
  @  5:2228e3b74514 add newfile
  |   () [default] draft
  o  0:8fa14d15e168 added hgignore
      () [default] draft

  $ cd ../stackrepo1
  $ hg up .^^^
  0 files updated, 0 files merged, 3 files removed, 0 files unresolved
  $ echo wat > a
  $ hg amend -m "watbar to a"
  3 new orphan changesets
  $ hg evolve --all
  move:[2] added b
  atop:[5] watbar to a
  move:[3] added c
  move:[4] added d

  $ hg glog
  o  8:c72d2885eb51 added d
  |   () [default] draft
  o  7:3ce4be6d8e5e added c
  |   () [default] draft
  o  6:d5f148423c16 added b
  |   () [default] draft
  @  5:8e222f257bbf watbar to a
  |   () [default] draft
  o  0:8fa14d15e168 added hgignore
      () [default] draft

  $ hg pull ../stackrepo2
  pulling from ../stackrepo2
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 5 changesets with 1 changes to 5 files (+1 heads)
  4 new obsolescence markers
  8 new content-divergent changesets
  new changesets 2228e3b74514:d45f050514c2 (5 drafts)
  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ hg glog
  *  13:d45f050514c2 added d
  |   () [default] draft
  *  12:8ed612937375 added c
  |   () [default] draft
  *  11:6eb54b5af3fb added b
  |   () [default] draft
  *  10:c04ff147ef79 added a
  |   () [default] draft
  o  9:2228e3b74514 add newfile
  |   () [default] draft
  | *  8:c72d2885eb51 added d
  | |   () [default] draft
  | *  7:3ce4be6d8e5e added c
  | |   () [default] draft
  | *  6:d5f148423c16 added b
  | |   () [default] draft
  | @  5:8e222f257bbf watbar to a
  |/    () [default] draft
  o  0:8fa14d15e168 added hgignore
      () [default] draft

  $ hg evolve --all --content-divergent
  merge:[10] added a
  with: [5] watbar to a
  base: [1] added a
  rebasing "other" content-divergent changeset 8e222f257bbf on 2228e3b74514
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  merge:[11] added b
  with: [6] added b
  base: [2] added b
  rebasing "other" content-divergent changeset d5f148423c16 on c04ff147ef79
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  merge:[12] added c
  with: [7] added c
  base: [3] added c
  rebasing "other" content-divergent changeset 3ce4be6d8e5e on 6eb54b5af3fb
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  merge:[13] added d
  with: [8] added d
  base: [4] added d
  rebasing "other" content-divergent changeset c72d2885eb51 on 8ed612937375
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory is now at 74fbf3e6a0b6

  $ hg glog
  o  21:5f7a38bdb75c added d
  |   () [default] draft
  o  19:9865d598f0e0 added c
  |   () [default] draft
  o  17:ac70b8c8eb63 added b
  |   () [default] draft
  @  15:74fbf3e6a0b6 watbar to a
  |   () [default] draft
  o  9:2228e3b74514 add newfile
  |   () [default] draft
  o  0:8fa14d15e168 added hgignore
      () [default] draft
  $ cd ..