view tests/test-evolve-obshistory-split.t @ 5926:aca07ac01167

divergence-resolution: use last evolution date to choose p1 when merging

Before this patch, we choose the minimum revision as p1 while merging the
two divergent csets which had a drawback that if independent user resolve
the same divergence, their final resolved cset would have different hashes
(because of 'divergence_source_local' and 'divergence_source_other' extras).

Now, we decide the p1 on the basis of which of the two divergent cset
was rewritten more recently. This new logic removes the "different hash"
problem.

To save us from big output changes in the tests due to this change, I also
added the second factor i.e revision_number while sorting the csets wrt dates
(as date is same for all the csets in tests) to fallback to the old way of
picking the revision i.e choosing the minimum rev number.

And to demonstrate that now divergence resolution is independent of which
side user run the `hg evolve --content-div` resolved cset id won't change,
I have added a separate test file.
Flag --config devel.default-date='...' is being used here to record a
custom date in the obsmarkers.

Testing obslog and other commands accessing obsolete revisions.

Global setup
============

  $ . $TESTDIR/testlib/obshistory_setup.sh

Test output with split commit
=============================

Test setup
----------

  $ hg init $TESTTMP/local-split
  $ hg init $TESTTMP/server
  $ cd $TESTTMP/local-split
  $ mkcommit ROOT
  $ sync
  $ echo 42 >> a
  $ echo 43 >> b
  $ hg commit -A -m "A0"
  adding a
  adding b
  $ hg log --hidden -G
  @  changeset:   1:471597cad322
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A0
  |
  o  changeset:   0:ea207398892e
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
  $ hg split -r 'desc(A0)' -n "testing split" -d "0 0" << EOF
  > y
  > y
  > n
  > y
  > y
  > y
  > EOF
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  adding a
  adding b
  diff --git a/a b/a
  new file mode 100644
  examine changes to 'a'?
  (enter ? for help) [Ynesfdaq?] y
  
  @@ -0,0 +1,1 @@
  +42
  record change 1/2 to 'a'?
  (enter ? for help) [Ynesfdaq?] y
  
  diff --git a/b b/b
  new file mode 100644
  examine changes to 'b'?
  (enter ? for help) [Ynesfdaq?] n
  
  created new head
  continue splitting? [Ycdq?] y
  diff --git a/b b/b
  new file mode 100644
  examine changes to 'b'?
  (enter ? for help) [Ynesfdaq?] y
  
  @@ -0,0 +1,1 @@
  +43
  record this change to 'b'?
  (enter ? for help) [Ynesfdaq?] y
  
  no more changes to split

  $ sync

  $ hg log --hidden -G
  @  changeset:   3:f257fde29c7a
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A0
  |
  o  changeset:   2:337fec4d2edc
  |  parent:      0:ea207398892e
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A0
  |
  | x  changeset:   1:471597cad322
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    obsolete:    split using split as 2:337fec4d2edc, 3:f257fde29c7a
  |    summary:     A0
  |
  o  changeset:   0:ea207398892e
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
Check output on the client side
-------------------------------

Check that obslog on split commit shows both targets
  $ hg obslog 471597cad322 --hidden --patch --no-origin
  x  471597cad322 (1) A0
       split(parent, content) as 337fec4d2edc, f257fde29c7a using split by test (Thu Jan 01 00:00:00 1970 +0000)
         note: testing split
         (No patch available, too many successors (2))
  
  $ hg obslog 471597cad322 --hidden --no-graph --no-origin -Tjson | "$PYTHON" -m json.tool
  [
      {
          "markers": [
              {
                  "dates": [
                      [
                          *, (glob)
                          0
                      ]
                  ],
                  "effects": [
                      "parent",
                      "content"
                  ],
                  "notes": [
                      "testing split"
                  ],
                  "operations": [
                      "split"
                  ],
                  "succnodes": [
                      "337fec4d2edcf0e7a467e35f818234bc620068b5",
                      "f257fde29c7a847c9b607f6e958656d0df0fb15c"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "split"
              }
          ],
          "node": "471597cad322d1f659bb169751be9133dad92ef3",
          "shortdescription": "A0"
      }
  ]
  $ hg obslog 471597cad322 --hidden --no-graph -Tjson | "$PYTHON" -m json.tool
  [
      {
          "markers": [],
          "node": "471597cad322d1f659bb169751be9133dad92ef3",
          "shortdescription": "A0"
      }
  ]
Check that obslog on the first successor after split shows the revision plus
the split one
  $ hg obslog 337fec4d2edc --patch
  o  337fec4d2edc (2) A0
  |    split(parent, content) from 471597cad322 using split by test (Thu Jan 01 00:00:00 1970 +0000)
  |      note: testing split
  |      diff -r 471597cad322 -r 337fec4d2edc b
  |      --- a/b	Thu Jan 01 00:00:00 1970 +0000
  |      +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
  |      @@ -1,1 +0,0 @@
  |      -43
  |
  |
  x  471597cad322 (1) A0
  
With the all option, it should show all three changesets
  $ hg obslog --all 337fec4d2edc --patch
  o  337fec4d2edc (2) A0
  |    split(parent, content) from 471597cad322 using split by test (Thu Jan 01 00:00:00 1970 +0000)
  |      note: testing split
  |      diff -r 471597cad322 -r 337fec4d2edc b
  |      --- a/b	Thu Jan 01 00:00:00 1970 +0000
  |      +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
  |      @@ -1,1 +0,0 @@
  |      -43
  |
  |
  | @  f257fde29c7a (3) A0
  |/     split(parent, content) from 471597cad322 using split by test (Thu Jan 01 00:00:00 1970 +0000)
  |        note: testing split
  |        (No patch available, changesets rebased)
  |
  x  471597cad322 (1) A0
  
Check that obslog on the second successor after split shows the revision plus
the split one
  $ hg obslog f257fde29c7a --patch
  @  f257fde29c7a (3) A0
  |    split(parent, content) from 471597cad322 using split by test (Thu Jan 01 00:00:00 1970 +0000)
  |      note: testing split
  |      (No patch available, changesets rebased)
  |
  x  471597cad322 (1) A0
  
With the all option, it should show all three changesets
  $ hg obslog f257fde29c7a --all --patch
  o  337fec4d2edc (2) A0
  |    split(parent, content) from 471597cad322 using split by test (Thu Jan 01 00:00:00 1970 +0000)
  |      note: testing split
  |      diff -r 471597cad322 -r 337fec4d2edc b
  |      --- a/b	Thu Jan 01 00:00:00 1970 +0000
  |      +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
  |      @@ -1,1 +0,0 @@
  |      -43
  |
  |
  | @  f257fde29c7a (3) A0
  |/     split(parent, content) from 471597cad322 using split by test (Thu Jan 01 00:00:00 1970 +0000)
  |        note: testing split
  |        (No patch available, changesets rebased)
  |
  x  471597cad322 (1) A0
  
Obslog with all option should also works on the split commit
  $ hg obslog -a 471597cad322 --hidden --patch --no-origin
  o  337fec4d2edc (2) A0
  |
  | @  f257fde29c7a (3) A0
  |/
  x  471597cad322 (1) A0
       split(parent, content) as 337fec4d2edc, f257fde29c7a using split by test (Thu Jan 01 00:00:00 1970 +0000)
         note: testing split
         (No patch available, too many successors (2))
  
Check that obslog on both successors after split shows a coherent graph
  $ hg obslog 'f257fde29c7a+337fec4d2edc' --patch --no-origin
  o  337fec4d2edc (2) A0
  |
  | @  f257fde29c7a (3) A0
  |/
  x  471597cad322 (1) A0
       split(parent, content) as 337fec4d2edc, f257fde29c7a using split by test (Thu Jan 01 00:00:00 1970 +0000)
         note: testing split
         (No patch available, too many successors (2))
  
  $ hg obslog 'f257fde29c7a+337fec4d2edc' --patch
  o  337fec4d2edc (2) A0
  |    split(parent, content) from 471597cad322 using split by test (Thu Jan 01 00:00:00 1970 +0000)
  |      note: testing split
  |      diff -r 471597cad322 -r 337fec4d2edc b
  |      --- a/b	Thu Jan 01 00:00:00 1970 +0000
  |      +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
  |      @@ -1,1 +0,0 @@
  |      -43
  |
  |
  | @  f257fde29c7a (3) A0
  |/     split(parent, content) from 471597cad322 using split by test (Thu Jan 01 00:00:00 1970 +0000)
  |        note: testing split
  |        (No patch available, changesets rebased)
  |
  x  471597cad322 (1) A0
  
  $ hg update 471597cad322
  abort: hidden revision '471597cad322' was split as: 337fec4d2edc, f257fde29c7a
  (use --hidden to access hidden revisions)
  [255]
  $ hg update --hidden 'min(desc(A0))'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  updated to hidden changeset 471597cad322
  (hidden revision '471597cad322' was split as: 337fec4d2edc, f257fde29c7a)
  working directory parent is obsolete! (471597cad322)
  (use 'hg evolve' to update to its tipmost successor: 337fec4d2edc, f257fde29c7a)

Check output on the server side
-------------------------------

  $ hg obslog -R $TESTTMP/server --patch tip --no-origin
  o  f257fde29c7a (2) A0
  |
  x  471597cad322
       split(parent, content) as 337fec4d2edc, f257fde29c7a using split by test (Thu Jan 01 00:00:00 1970 +0000)
         note: testing split
         (No patch available, context is not local)
  
  $ hg obslog -R $TESTTMP/server -f --patch tip --no-origin
  o  f257fde29c7a (2) A0
  
  $ hg obslog -R $TESTTMP/server --all --patch tip --no-origin
  o  337fec4d2edc (1) A0
  |
  | o  f257fde29c7a (2) A0
  |/
  x  471597cad322
       split(parent, content) as 337fec4d2edc, f257fde29c7a using split by test (Thu Jan 01 00:00:00 1970 +0000)
         note: testing split
         (No patch available, context is not local)
  
  $ hg obslog -R $TESTTMP/server --all -f --patch tip --no-origin
  o  337fec4d2edc (1) A0
  
  o  f257fde29c7a (2) A0
  
  $ hg obslog -R $TESTTMP/server --no-graph --all --patch tip --no-origin
  f257fde29c7a (2) A0
  
  471597cad322
    split(parent, content) as 337fec4d2edc, f257fde29c7a using split by test (Thu Jan 01 00:00:00 1970 +0000)
      note: testing split
      (No patch available, context is not local)
  
  337fec4d2edc (1) A0
  
  $ hg obslog -R $TESTTMP/server --no-graph -f --all --patch tip --no-origin
  f257fde29c7a (2) A0
  
  337fec4d2edc (1) A0
  

  $ hg obslog -R $TESTTMP/server --patch tip
  o  f257fde29c7a (2) A0
  |    split(parent, content) from 471597cad322 using split by test (Thu Jan 01 00:00:00 1970 +0000)
  |      note: testing split
  |      (No patch available, predecessor is unknown locally)
  |
  x  471597cad322
  
  $ hg obslog -R $TESTTMP/server -f --patch tip
  o  f257fde29c7a (2) A0
  
  $ hg obslog -R $TESTTMP/server --all --patch tip
  o  337fec4d2edc (1) A0
  |    split(parent, content) from 471597cad322 using split by test (Thu Jan 01 00:00:00 1970 +0000)
  |      note: testing split
  |      (No patch available, predecessor is unknown locally)
  |
  | o  f257fde29c7a (2) A0
  |/     split(parent, content) from 471597cad322 using split by test (Thu Jan 01 00:00:00 1970 +0000)
  |        note: testing split
  |        (No patch available, predecessor is unknown locally)
  |
  x  471597cad322
  
  $ hg obslog -R $TESTTMP/server --all -f --patch tip
  o  337fec4d2edc (1) A0
  
  o  f257fde29c7a (2) A0
  
  $ hg obslog -R $TESTTMP/server --no-graph --all --patch tip
  f257fde29c7a (2) A0
    split(parent, content) from 471597cad322 using split by test (Thu Jan 01 00:00:00 1970 +0000)
      note: testing split
      (No patch available, predecessor is unknown locally)
  
  471597cad322
  
  337fec4d2edc (1) A0
    split(parent, content) from 471597cad322 using split by test (Thu Jan 01 00:00:00 1970 +0000)
      note: testing split
      (No patch available, predecessor is unknown locally)
  
  $ hg obslog -R $TESTTMP/server --no-graph -f --all --patch tip
  f257fde29c7a (2) A0
  
  337fec4d2edc (1) A0