view tests/test-evolve-public-content-divergent-main.t @ 4636:c0e9a3c01c44

evolve: consider using three way merge to get the user for div resolution

This patch adds the logic to merge the users from two divergent csets
considering the base (i.e three way merge).
The case when all the three are different, we concatenate the two authors
of divergent csets.

=============================================================
Tests the resolution of public content divergence: main cases
=============================================================

This file intend to cover all the common cases of public content divergence.
That is all the variant of:
parent: same/different
relocation: [no-]conflict
merging: [no-]conflict

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

Testing when same parent, no conflict:
--------------------------------------

Prepare the repository:

  $ hg init pubdiv1
  $ cd pubdiv1
  $ for ch in a b; do
  >   echo $ch > $ch;
  >   hg ci -Aqm "added "$ch;
  > done;
  $ hg glog
  @  1:5f6d8a4bf34a added b
  |   draft
  |
  o  0:9092f1db7931 added a
      draft
  

Make an amend and change phase to public:

  $ sed -i "1 i I am first" b
  $ hg amend
  $ hg phase --public

Amend again to create a cset divergent to public one:

  $ hg up 1 --hidden -q
  updated to hidden changeset 5f6d8a4bf34a
  (hidden revision '5f6d8a4bf34a' was rewritten as: 44f360db368f)
  working directory parent is obsolete! (5f6d8a4bf34a)

  $ echo "I am second" >> b
  $ hg ci --amend -m "updated b"
  1 new content-divergent changesets

  $ hg glog
  @  3:dcdaf152280a updated b
  |   draft content-divergent
  |
  | o  2:44f360db368f added b
  |/    public
  |
  o  0:9092f1db7931 added a
      public
  

Lets resolve the public content-divergence:

  $ hg evolve --content-divergent
  merge:[2] added b
  with: [3] updated b
  base: [1] added b
  merging b
  0 files updated, 1 files merged, 0 files removed, 0 files unresolved
  committed as c1aa9cfb6cf8
  working directory is now at c1aa9cfb6cf8

Following graph log shows that it correctly merged the two divergent csets:

  $ hg glog -p
  @  5:c1aa9cfb6cf8 phase-divergent update to 44f360db368f:
  |   draft
  |
  |  diff -r 44f360db368f -r c1aa9cfb6cf8 b
  |  --- a/b	Thu Jan 01 00:00:00 1970 +0000
  |  +++ b/b	Thu Jan 01 00:00:00 1970 +0000
  |  @@ -1,2 +1,3 @@
  |   I am first
  |   b
  |  +I am second
  |
  o  2:44f360db368f added b
  |   public
  |
  |  diff -r 9092f1db7931 -r 44f360db368f b
  |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  |  +++ b/b	Thu Jan 01 00:00:00 1970 +0000
  |  @@ -0,0 +1,2 @@
  |  +I am first
  |  +b
  |
  o  0:9092f1db7931 added a
      public
  
     diff -r 000000000000 -r 9092f1db7931 a
     --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     +++ b/a	Thu Jan 01 00:00:00 1970 +0000
     @@ -0,0 +1,1 @@
     +a
  
  $ hg evolve -l
  $ cd ..

Testing when same parent, merging conflict:
-------------------------------------------

Prepare the repository:

  $ hg init pubdiv2
  $ cd pubdiv2
  $ for ch in a b; do
  >   echo $ch > $ch;
  >   hg ci -Aqm "added "$ch;
  > done;
  $ hg glog
  @  1:5f6d8a4bf34a added b
  |   draft
  |
  o  0:9092f1db7931 added a
      draft
  

Make an amend and change phase to public:

  $ echo "I am foo" > b
  $ hg amend
  $ hg phase --public

Amend again to create a cset divergent to public one:

  $ hg up 1 --hidden -q
  updated to hidden changeset 5f6d8a4bf34a
  (hidden revision '5f6d8a4bf34a' was rewritten as: 580f2d01e52c)
  working directory parent is obsolete! (5f6d8a4bf34a)

  $ echo "I am bar" > b
  $ hg ci --amend -m "updated b"
  1 new content-divergent changesets

  $ hg glog
  @  3:0e805383168e updated b
  |   draft content-divergent
  |
  | o  2:580f2d01e52c added b
  |/    public
  |
  o  0:9092f1db7931 added a
      public
  

Lets resolve the divergence:

  $ hg evolve --content-divergent
  merge:[2] added b
  with: [3] updated b
  base: [1] added b
  merging b
  warning: conflicts while merging b! (edit, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  fix conflicts and see `hg help evolve.interrupted`
  [1]

  $ echo "I am foobar" > b
  $ hg resolve -m --tool union
  (no more unresolved files)
  continue: hg evolve --continue
  $ hg evolve --continue
  committed as 1a739394e9d4
  working directory is now at 1a739394e9d4

  $ hg glog
  @  5:1a739394e9d4 phase-divergent update to 580f2d01e52c:
  |   draft
  |
  o  2:580f2d01e52c added b
  |   public
  |
  o  0:9092f1db7931 added a
      public
  
Testing when different parent, no conflict:
-------------------------------------------

  $ hg init pubdiv3
  $ cd pubdiv3
  $ for ch in a b c d; do
  >   echo $ch > $ch;
  >   hg ci -Aqm "added "$ch;
  > done;

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

  $ hg up 1
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo dd > d
  $ echo e > e
  $ hg add d e
  $ hg ci -m "added d e"
  created new head

  $ hg glog
  @  5:4291d72ee19a added d e
  |   draft
  |
  | o  4:93cd84bbdaca added d
  | |   draft
  | |
  | | o  3:9150fe93bec6 added d
  | |/    draft
  | |
  | o  2:155349b645be added c
  |/    draft
  |
  o  1:5f6d8a4bf34a added b
  |   draft
  |
  o  0:9092f1db7931 added a
      draft
  

  $ hg prune 3 -s 5
  1 changesets pruned
  $ hg prune 3 -s 4 --hidden
  1 changesets pruned
  2 new content-divergent changesets

Change phase to public for one head:
  $ hg phase -r 4 --public

  $ hg glog
  @  5:4291d72ee19a added d e
  |   draft content-divergent
  |
  | o  4:93cd84bbdaca added d
  | |   public
  | |
  | o  2:155349b645be added c
  |/    public
  |
  o  1:5f6d8a4bf34a added b
  |   public
  |
  o  0:9092f1db7931 added a
      public
  

  $ hg evolve --content-divergent --any
  merge:[4] added d
  with: [5] added d e
  base: [3] added d
  rebasing "other" content-divergent changeset 4291d72ee19a on 155349b645be
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  committed as 4cbe48a0c3d9
  working directory is now at 4cbe48a0c3d9

  $ hg glog -l 1
  @  8:4cbe48a0c3d9 phase-divergent update to 93cd84bbdaca:
  |   draft
  ~

  $ hg evolve -l
  $ cd ..

Testing when different parents, relocation conflict:
----------------------------------------------------

  $ hg init pubdiv4
  $ cd pubdiv4
  $ for ch in a b c d; do
  >   echo $ch > $ch;
  >   hg ci -Aqm "added "$ch;
  > done;

  $ hg up .^^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo d > d
  $ echo cfoo > c
  $ echo e > e
  $ hg add d c e
  $ hg ci -m "added d c e"
  created new head

  $ hg up 'desc("added c")'
  1 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo dd > d
  $ hg add d
  $ hg ci -m "added d"
  created new head

  $ hg glog
  @  5:93cd84bbdaca added d
  |   draft
  |
  | o  4:f31bcc378766 added d c e
  | |   draft
  | |
  +---o  3:9150fe93bec6 added d
  | |     draft
  | |
  o |  2:155349b645be added c
  |/    draft
  |
  o  1:5f6d8a4bf34a added b
  |   draft
  |
  o  0:9092f1db7931 added a
      draft
  
  $ hg prune 'min(desc("re:added d$"))' -s 'max(desc("re:added d$"))'
  1 changesets pruned
  $ hg prune 'min(desc("re:added d$"))' -s 'desc("added d c e")' --hidden
  1 changesets pruned
  2 new content-divergent changesets

Change phase to public for one head:
  $ hg phase --public -r 'max(desc("re:added d$"))'

  $ hg glog
  @  5:93cd84bbdaca added d
  |   public
  |
  | *  4:f31bcc378766 added d c e
  | |   draft content-divergent
  | |
  o |  2:155349b645be added c
  |/    public
  |
  o  1:5f6d8a4bf34a added b
  |   public
  |
  o  0:9092f1db7931 added a
      public
  
  $ hg evolve --content-divergent --any --update
  merge:[5] added d
  with: [4] added d c e
  base: [3] added d
  rebasing "other" content-divergent changeset f31bcc378766 on 155349b645be
  merging c
  warning: conflicts while merging c! (edit, then use 'hg resolve --mark')
  fix conflicts and see `hg help evolve.interrupted`
  [1]

  $ hg diff
  diff -r 155349b645be c
  --- a/c	Thu Jan 01 00:00:00 1970 +0000
  +++ b/c	Thu Jan 01 00:00:00 1970 +0000
  @@ -1,1 +1,5 @@
  +<<<<<<< destination: 155349b645be - test: added c
   c
  +=======
  +cfoo
  +>>>>>>> evolving:    f31bcc378766 - test: added d c e
  diff -r 155349b645be d
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/d	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +d
  diff -r 155349b645be e
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/e	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +e

  $ echo c > c
  $ hg res -m
  (no more unresolved files)
  continue: hg evolve --continue

  $ hg evolve --continue
  evolving 4:f31bcc378766 "added d c e"
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  committed as 412dde898967
  working directory is now at 412dde898967
  $ hg export
  # HG changeset patch
  # User test
  # Date 0 0
  #      Thu Jan 01 00:00:00 1970 +0000
  # Node ID 412dde898967b50e7d334aefff778a9af46d29d1
  # Parent  93cd84bbdacaeb8f881c29a609dbdd30c38cbc57
  phase-divergent update to 93cd84bbdaca:
  
  added d c e
  
  diff -r 93cd84bbdaca -r 412dde898967 e
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/e	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +e

  $ hg evolve -l
  $ cd ..

Testing when merging conflicts, relocation don't:
-------------------------------------------------

  $ hg init pubdiv5
  $ cd pubdiv5
  $ for ch in a b c d; do
  >   echo $ch > $ch;
  >   hg ci -Aqm "added "$ch;
  > done;

  $ hg up .^^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo dconflict > d
  $ hg add d
  $ hg ci -m "added d"
  created new head

  $ hg up 2
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo dd > d
  $ hg add d
  $ hg ci -m "added d"
  created new head

  $ hg glog
  @  5:93cd84bbdaca added d
  |   draft
  |
  | o  4:9411ad1fe615 added d
  | |   draft
  | |
  +---o  3:9150fe93bec6 added d
  | |     draft
  | |
  o |  2:155349b645be added c
  |/    draft
  |
  o  1:5f6d8a4bf34a added b
  |   draft
  |
  o  0:9092f1db7931 added a
      draft
  
  $ hg prune 3 -s 5
  1 changesets pruned
  $ hg prune 3 -s 4 --hidden
  1 changesets pruned
  2 new content-divergent changesets

Change phase to public for one head:
  $ hg phase --public -r 5

  $ hg glog
  @  5:93cd84bbdaca added d
  |   public
  |
  | *  4:9411ad1fe615 added d
  | |   draft content-divergent
  | |
  o |  2:155349b645be added c
  |/    public
  |
  o  1:5f6d8a4bf34a added b
  |   public
  |
  o  0:9092f1db7931 added a
      public
  
  $ hg evolve --content-divergent --any
  merge:[5] added d
  with: [4] added d
  base: [3] added d
  rebasing "other" content-divergent changeset 9411ad1fe615 on 155349b645be
  merging d
  warning: conflicts while merging d! (edit, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  fix conflicts and see `hg help evolve.interrupted`
  [1]

  $ echo d > d
  $ hg res -m
  (no more unresolved files)
  continue: hg evolve --continue

  $ hg evolve --continue
  committed as 2a0f44767904
  working directory is now at 93cd84bbdaca

  $ hg evolve -l
  $ cd ..

Testing when relocation, merging both conflict:
-----------------------------------------------

  $ hg init pubdiv6
  $ cd pubdiv6
  $ for ch in a b c d; do
  >   echo $ch > $ch;
  >   hg ci -Aqm "added "$ch;
  > done;

  $ hg up .^^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo cfoo > c
  $ echo e > e
  $ echo dconflict > d
  $ hg add c e d
  $ hg ci -m "added c e"
  created new head

  $ hg up 2
  1 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo dd > d
  $ hg add d
  $ hg ci -m "added d"
  created new head

  $ hg glog
  @  5:93cd84bbdaca added d
  |   draft
  |
  | o  4:3c17c7afaf6e added c e
  | |   draft
  | |
  +---o  3:9150fe93bec6 added d
  | |     draft
  | |
  o |  2:155349b645be added c
  |/    draft
  |
  o  1:5f6d8a4bf34a added b
  |   draft
  |
  o  0:9092f1db7931 added a
      draft
  
  $ hg prune 3 -s 5
  1 changesets pruned
  $ hg prune 3 -s 4 --hidden
  1 changesets pruned
  2 new content-divergent changesets

Change phase to public for one head:
  $ hg phase --public -r 5

  $ hg glog
  @  5:93cd84bbdaca added d
  |   public
  |
  | *  4:3c17c7afaf6e added c e
  | |   draft content-divergent
  | |
  o |  2:155349b645be added c
  |/    public
  |
  o  1:5f6d8a4bf34a added b
  |   public
  |
  o  0:9092f1db7931 added a
      public
  
  $ hg evolve --content-divergent --any
  merge:[5] added d
  with: [4] added c e
  base: [3] added d
  rebasing "other" content-divergent changeset 3c17c7afaf6e on 155349b645be
  merging c
  warning: conflicts while merging c! (edit, then use 'hg resolve --mark')
  fix conflicts and see `hg help evolve.interrupted`
  [1]

  $ hg diff
  diff -r 155349b645be c
  --- a/c	Thu Jan 01 00:00:00 1970 +0000
  +++ b/c	Thu Jan 01 00:00:00 1970 +0000
  @@ -1,1 +1,5 @@
  +<<<<<<< destination: 155349b645be - test: added c
   c
  +=======
  +cfoo
  +>>>>>>> evolving:    3c17c7afaf6e - test: added c e
  diff -r 155349b645be d
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/d	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +dconflict
  diff -r 155349b645be e
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/e	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +e

  $ echo cfoo > c
  $ hg res -m
  (no more unresolved files)
  continue: hg evolve --continue

  $ hg evolve --continue
  evolving 4:3c17c7afaf6e "added c e"
  merging d
  warning: conflicts while merging d! (edit, then use 'hg resolve --mark')
  2 files updated, 0 files merged, 0 files removed, 1 files unresolved
  fix conflicts and see `hg help evolve.interrupted`
  [1]

  $ echo d > d
  $ hg res -m
  (no more unresolved files)
  continue: hg evolve --continue

  $ hg evolve --continue
  committed as b9082a9e66ce
  working directory is now at 93cd84bbdaca

  $ hg evolve -l
  $ cd ..