view tests/test-evolve-obshistory-amend-then-fold.t @ 6935:954d7ea5cd67 stable tip

stack: when stack base is obsolete, pick any successor, even if at random

There are situations when s0 is obsolete and we also cannot pick just one
successor for it to use in stack. In such a case, let's pick the "latest"
successor from the first set.

We're assuming that obsutil.successorssets() returns data in the same order (it
should, since it makes sure to sort data internally). Keeping that in mind,
while the successor picked for s0 by this code is not based on any sort of
sophisticated logic, it should nonetheless be the same every time.

This patch is probably not going to completely break anything that was
previously working fine, because the previous behavior was to just abort with
an exception.

Testing obslog and other commands accessing obsolete revisions.

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

  $ . $TESTDIR/testlib/obshistory_setup.sh

Test output with amended + folded commit
========================================

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

  $ hg init $TESTTMP/local-amend-fold
  $ cd $TESTTMP/local-amend-fold
  $ mkcommit ROOT
  $ mkcommit A0
  $ mkcommit B0
  $ hg amend -m "B1"
  $ hg log --hidden -G
  @  changeset:   3:b7ea6d14e664
  |  tag:         tip
  |  parent:      1:471f378eab4c
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     B1
  |
  | x  changeset:   2:0dec01379d3b
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    obsolete:    reworded using amend as 3:b7ea6d14e664
  |    summary:     B0
  |
  o  changeset:   1:471f378eab4c
  |  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 fold --exact -r 'desc(A0) + desc(B1)' --date "0 0" -m "C0"
  2 changesets folded
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg log --hidden -G
  @  changeset:   4:eb5a0daa2192
  |  tag:         tip
  |  parent:      0:ea207398892e
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     C0
  |
  | x  changeset:   3:b7ea6d14e664
  | |  parent:      1:471f378eab4c
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  obsolete:    folded using fold as 4:eb5a0daa2192
  | |  summary:     B1
  | |
  | | x  changeset:   2:0dec01379d3b
  | |/   user:        test
  | |    date:        Thu Jan 01 00:00:00 1970 +0000
  | |    obsolete:    reworded using amend as 3:b7ea6d14e664
  | |    summary:     B0
  | |
  | x  changeset:   1:471f378eab4c
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    obsolete:    folded using fold as 4:eb5a0daa2192
  |    summary:     A0
  |
  o  changeset:   0:ea207398892e
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
Actual test
-----------

Check that obslog on head shows a coherent graph
  $ hg obslog eb5a0daa2192 --patch --no-origin
  @    eb5a0daa2192 (4) C0
  |\
  x |  471f378eab4c (1) A0
   /     folded(description, content) as eb5a0daa2192 using fold by test (Thu Jan 01 00:00:00 1970 +0000)
  |        diff -r 471f378eab4c -r eb5a0daa2192 changeset-description
  |        --- a/changeset-description
  |        +++ b/changeset-description
  |        @@ -1,1 +1,1 @@
  |        -A0
  |        +C0
  |
  |        diff -r 471f378eab4c -r eb5a0daa2192 B0
  |        --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  |        +++ b/B0	Thu Jan 01 00:00:00 1970 +0000
  |        @@ -0,0 +1,1 @@
  |        +B0
  |
  |
  x  b7ea6d14e664 (3) B1
  |    folded(description, parent, content) as eb5a0daa2192 using fold by test (Thu Jan 01 00:00:00 1970 +0000)
  |      (No patch available, changesets rebased)
  |
  x  0dec01379d3b (2) B0
       reworded(description) as b7ea6d14e664 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
         diff -r 0dec01379d3b -r b7ea6d14e664 changeset-description
         --- a/changeset-description
         +++ b/changeset-description
         @@ -1,1 +1,1 @@
         -B0
         +B1
  
  
  $ hg obslog eb5a0daa2192 --patch
  @    eb5a0daa2192 (4) C0
  |\     folded(description, parent, content) from 471f378eab4c, b7ea6d14e664 using fold by test (Thu Jan 01 00:00:00 1970 +0000)
  | |      (No patch available, too many predecessors (2))
  | |
  x |  471f378eab4c (1) A0
   /
  x  b7ea6d14e664 (3) B1
  |    reworded(description) from 0dec01379d3b using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  |      diff -r 0dec01379d3b -r b7ea6d14e664 changeset-description
  |      --- a/changeset-description
  |      +++ b/changeset-description
  |      @@ -1,1 +1,1 @@
  |      -B0
  |      +B1
  |
  |
  x  0dec01379d3b (2) B0
  
Check that obslog on A0 with all option shows everything
  $ hg obslog 1 --hidden --all --patch --no-origin
  @    eb5a0daa2192 (4) C0
  |\
  x |  471f378eab4c (1) A0
   /     folded(description, content) as eb5a0daa2192 using fold by test (Thu Jan 01 00:00:00 1970 +0000)
  |        diff -r 471f378eab4c -r eb5a0daa2192 changeset-description
  |        --- a/changeset-description
  |        +++ b/changeset-description
  |        @@ -1,1 +1,1 @@
  |        -A0
  |        +C0
  |
  |        diff -r 471f378eab4c -r eb5a0daa2192 B0
  |        --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  |        +++ b/B0	Thu Jan 01 00:00:00 1970 +0000
  |        @@ -0,0 +1,1 @@
  |        +B0
  |
  |
  x  b7ea6d14e664 (3) B1
  |    folded(description, parent, content) as eb5a0daa2192 using fold by test (Thu Jan 01 00:00:00 1970 +0000)
  |      (No patch available, changesets rebased)
  |
  x  0dec01379d3b (2) B0
       reworded(description) as b7ea6d14e664 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
         diff -r 0dec01379d3b -r b7ea6d14e664 changeset-description
         --- a/changeset-description
         +++ b/changeset-description
         @@ -1,1 +1,1 @@
         -B0
         +B1
  
  
  $ hg obslog 1 --hidden --all --patch
  @    eb5a0daa2192 (4) C0
  |\     folded(description, parent, content) from 471f378eab4c, b7ea6d14e664 using fold by test (Thu Jan 01 00:00:00 1970 +0000)
  | |      (No patch available, too many predecessors (2))
  | |
  x |  471f378eab4c (1) A0
   /
  x  b7ea6d14e664 (3) B1
  |    reworded(description) from 0dec01379d3b using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  |      diff -r 0dec01379d3b -r b7ea6d14e664 changeset-description
  |      --- a/changeset-description
  |      +++ b/changeset-description
  |      @@ -1,1 +1,1 @@
  |      -B0
  |      +B1
  |
  |
  x  0dec01379d3b (2) B0
  
  $ hg obslog eb5a0daa2192 --no-graph --no-origin -Tjson | "$PYTHON" -m json.tool
  [
      {
          "markers": [],
          "node": "eb5a0daa21923bbf8caeb2c42085b9e463861fd0",
          "shortdescription": "C0"
      },
      {
          "markers": [
              {
                  "dates": [
                      [
                          *, (glob)
                          0
                      ]
                  ],
                  "effects": [
                      *, (glob)
                      *, (glob)
                      "content"
                  ],
                  "operations": [
                      "fold"
                  ],
                  "succnodes": [
                      "eb5a0daa21923bbf8caeb2c42085b9e463861fd0"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "folded"
              }
          ],
          "node": "b7ea6d14e664bdc8922221f7992631b50da3fb07",
          "shortdescription": "B1"
      },
      {
          "markers": [
              {
                  "dates": [
                      [
                          *, (glob)
                          0
                      ]
                  ],
                  "effects": [
                      "description"
                  ],
                  "operations": [
                      "amend"
                  ],
                  "succnodes": [
                      "b7ea6d14e664bdc8922221f7992631b50da3fb07"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "reworded"
              }
          ],
          "node": "0dec01379d3be6318c470ead31b1fe7ae7cb53d5",
          "shortdescription": "B0"
      },
      {
          "markers": [
              {
                  "dates": [
                      [
                          *, (glob)
                          0
                      ]
                  ],
                  "effects": [
                      "description",
                      "content"
                  ],
                  "operations": [
                      "fold"
                  ],
                  "succnodes": [
                      "eb5a0daa21923bbf8caeb2c42085b9e463861fd0"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "folded"
              }
          ],
          "node": "471f378eab4c5e25f6c77f785b27c936efb22874",
          "shortdescription": "A0"
      }
  ]
  $ hg obslog eb5a0daa2192 --no-graph -Tjson | "$PYTHON" -m json.tool
  [
      {
          "markers": [
              {
                  "dates": [
                      [
                          *, (glob)
                          0
                      ],
                      [
                          *, (glob)
                          0
                      ]
                  ],
                  "effects": [
                      *, (glob)
                      *, (glob)
                      "content"
                  ],
                  "operations": [
                      "fold"
                  ],
                  "prednodes": [
                      "471f378eab4c5e25f6c77f785b27c936efb22874",
                      "b7ea6d14e664bdc8922221f7992631b50da3fb07"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "folded"
              }
          ],
          "node": "eb5a0daa21923bbf8caeb2c42085b9e463861fd0",
          "shortdescription": "C0"
      },
      {
          "markers": [
              {
                  "dates": [
                      [
                          *, (glob)
                          0
                      ]
                  ],
                  "effects": [
                      "description"
                  ],
                  "operations": [
                      "amend"
                  ],
                  "prednodes": [
                      "0dec01379d3be6318c470ead31b1fe7ae7cb53d5"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "reworded"
              }
          ],
          "node": "b7ea6d14e664bdc8922221f7992631b50da3fb07",
          "shortdescription": "B1"
      },
      {
          "markers": [],
          "node": "0dec01379d3be6318c470ead31b1fe7ae7cb53d5",
          "shortdescription": "B0"
      },
      {
          "markers": [],
          "node": "471f378eab4c5e25f6c77f785b27c936efb22874",
          "shortdescription": "A0"
      }
  ]
  $ hg update 471f378eab4c
  abort: hidden revision '471f378eab4c' was rewritten as: eb5a0daa2192
  (use --hidden to access hidden revisions)
  [10]
  $ hg update --hidden 'desc(A0)'
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  updated to hidden changeset 471f378eab4c
  (hidden revision '471f378eab4c' was rewritten as: eb5a0daa2192)
  working directory parent is obsolete! (471f378eab4c)
  (use 'hg evolve' to update to its successor: eb5a0daa2192)
  $ hg update --hidden 0dec01379d3b
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  updated to hidden changeset 0dec01379d3b
  (hidden revision '0dec01379d3b' was rewritten as: eb5a0daa2192)
  working directory parent is obsolete! (0dec01379d3b)
  (use 'hg evolve' to update to its successor: eb5a0daa2192)
  $ hg update 0dec01379d3b
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg update --hidden 'desc(B0)'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved