view tests/test-stabilize-result.t @ 1106:6b0cf1b73693 stable

evolve: replace each obsolete sha1 in the description with its latest successor

Obsolete csets are hidden by default and don't get pushed to the parent repo.
In order to avoid broken references in commit messages, it makes sense to evolve
those references to the latest and greatest successor, as each cset containing
them is evolved.  Of course, stale references can still occur if a commit in
branch 'A' references something in branch 'B', and that something in 'B' is
evolved but 'A' isn't subsequently evolved.

This alleviates the user that is evolving a series of commits from having to

  1) recognize that there is a hash that needs updating in any one of the series
  2) look up the latest successor manually
  3) hg amend -e

The regular expression for matching and the logic for replacing are borrowed
from the convert extension [1].

It might be nice for the output to state the reason that the reference couldn't
be updated (it was pruned, split or diverged), but that may be excessive for
something only displayed in verbose mode.  (Maybe it should be a ui.status()
instead?)

[1] http://selenic.com/hg/rev/45562379ce4e

  $ cat >> $HGRCPATH <<EOF
  > [defaults]
  > amend=-d "0 0"
  > [extensions]
  > hgext.rebase=
  > hgext.graphlog=
  > EOF
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext/evolve.py" >> $HGRCPATH

  $ glog() {
  >   hg glog --template \
  >     '{rev}:{node|short}@{branch}({phase}) bk:[{bookmarks}] {desc|firstline}\n' "$@"
  > }

Test evolve removing the changeset being evolved

  $ hg init empty
  $ cd empty
  $ echo a > a
  $ hg ci -Am adda a
  $ echo b > b
  $ hg ci -Am addb b
  $ echo a >> a
  $ hg ci -m changea
  $ hg bookmark changea
  $ hg up 1
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (leaving bookmark changea)
  $ echo a >> a
  $ hg amend -m changea
  1 new unstable changesets
  $ hg evolve -v --confirm
  move:[2] changea
  atop:[4] changea
  perform evolve? [Ny] y
  hg rebase -r cce2c55b8965 -d fb9d051ec0a4
  resolving manifests
  $ glog --hidden
  @  4:fb9d051ec0a4@default(draft) bk:[changea] changea
  |
  | x  3:c5727dbded3c@default(draft) bk:[] temporary amend commit for 102a90ea7b4a
  | |
  | | x  2:cce2c55b8965@default(draft) bk:[] changea
  | |/
  | x  1:102a90ea7b4a@default(draft) bk:[] addb
  |/
  o  0:07f494440405@default(draft) bk:[] adda
  
  $ hg debugobsolete
  102a90ea7b4a3361e4082ed620918c261189a36a fb9d051ec0a450a4aa2ffc8c324979832ef88065 0 (*) {'user': 'test'} (glob)
  c5727dbded3c3a6877cf60d6bb552a76812cb844 0 {102a90ea7b4a3361e4082ed620918c261189a36a} (*) {'user': 'test'} (glob)
  cce2c55b896511e0b6e04173c9450ba822ebc740 0 {102a90ea7b4a3361e4082ed620918c261189a36a} (*) {'user': 'test'} (glob)

Test evolve with conflict

  $ ls
  a
  b
  $ hg pdiff a
  diff -r 07f494440405 a
  --- a/a	* (glob)
  +++ b/a	* (glob)
  @@ -1,1 +1,2 @@
   a
  +a
  $ echo 'newer a' >> a
  $ hg ci -m 'newer a'
  $ hg gdown
  gdown have been deprecated in favor of previous
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  [4] changea
  $ echo 'a' > a
  $ hg amend
  1 new unstable changesets
  $ hg evolve
  move:[5] newer a
  atop:[7] changea
  merging a
  warning: conflicts during merge.
  merging a incomplete! (edit conflicts, then use 'hg resolve --mark')
  evolve failed!
  fix conflict and run "hg evolve --continue"
  abort: unresolved merge conflicts (see hg help resolve)
  [255]
  $ hg revert -r 'unstable()' a
  $ hg diff
  diff -r 66719795a494 a
  --- a/a	* (glob)
  +++ b/a	* (glob)
  @@ -1,1 +1,3 @@
   a
  +a
  +newer a
  $ hg evolve --continue
  grafting revision 5
  abort: unresolved merge conflicts (see hg help resolve)
  [255]
  $ hg resolve -m a
  (no more unresolved files)
  $ hg evolve --continue
  grafting revision 5

Stabilize latecomer with different parent
=========================================

(the same-parent case is handled in test-evolve.t)

  $ glog
  @  8:1cf0aacfd363@default(draft) bk:[] newer a
  |
  o  7:66719795a494@default(draft) bk:[changea] changea
  |
  o  0:07f494440405@default(draft) bk:[] adda
  
Add another commit

  $ hg gdown
  gdown have been deprecated in favor of previous
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  [7] changea
  $ echo 'c' > c
  $ hg add c
  $ hg commit -m 'add c'
  created new head

Get a successors of 8 on it

  $ hg grab 8
  ? files updated, 0 files merged, 0 files removed, 0 files unresolved (glob)

Add real change to the successors

  $ echo 'babar' >> a
  $ hg amend

Make precursors public

  $ hg phase --hidden --public 8
  1 new bumped changesets
  $ glog
  @  12:(73b15c7566e9|d5c7ef82d003)@default\(draft\) bk:\[\] newer a (re)
  |
  o  9:7bc2f5967f5e@default(draft) bk:[] add c
  |
  | o  8:1cf0aacfd363@default(public) bk:[] newer a
  |/
  o  7:66719795a494@default(public) bk:[changea] changea
  |
  o  0:07f494440405@default(public) bk:[] adda
  

Stabilize!

  $ hg evolve --any --dry-run
  recreate:[12] newer a
  atop:[8] newer a
  hg rebase --rev (73b15c7566e9|d5c7ef82d003) --dest 66719795a494; (re)
  hg update 1cf0aacfd363;
  hg revert --all --rev (73b15c7566e9|d5c7ef82d003); (re)
  hg commit --msg "bumped update to %s" (no-eol)
  $ hg evolve --any --confirm
  recreate:[12] newer a
  atop:[8] newer a
  perform evolve? [Ny] y
  rebasing to destination parent: 66719795a494
  computing new diff
  committed as (a7cabd7bd9c2|671b9d7eeaec) (re)
  working directory is now at (a7cabd7bd9c2|671b9d7eeaec) (re)
  $ glog
  @  14:(a7cabd7bd9c2|671b9d7eeaec)@default\(draft\) bk:\[\] bumped update to 1cf0aacfd363: (re)
  |
  | o  9:7bc2f5967f5e@default(draft) bk:[] add c
  | |
  o |  8:1cf0aacfd363@default(public) bk:[] newer a
  |/
  o  7:66719795a494@default(public) bk:[changea] changea
  |
  o  0:07f494440405@default(public) bk:[] adda
  

Stabilize divergent changesets with same parent
===============================================

  $ rm a.orig
  $ hg up 9
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cat << EOF >> a
  > flore
  > arthur
  > zephir
  > some
  > less
  > conflict
  > EOF
  $ hg ci -m 'More addition'
  $ glog
  @  15:3932c176bbaa@default(draft) bk:[] More addition
  |
  | o  14:(a7cabd7bd9c2|671b9d7eeaec)@default\(draft\) bk:\[\] bumped update to 1cf0aacfd363: (re)
  | |
  o |  9:7bc2f5967f5e@default(draft) bk:[] add c
  | |
  | o  8:1cf0aacfd363@default(public) bk:[] newer a
  |/
  o  7:66719795a494@default(public) bk:[changea] changea
  |
  o  0:07f494440405@default(public) bk:[] adda
  
  $ echo 'babar' >> a
  $ hg amend
  $ hg up --hidden 15
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory parent is obsolete!
  $ mv a a.old
  $ echo 'jungle' > a
  $ cat a.old >> a
  $ rm a.old
  $ hg amend
  2 new divergent changesets
  $ glog
  @  19:eacc9c8240fe@default(draft) bk:[] More addition
  |
  | o  17:d2f173e25686@default(draft) bk:[] More addition
  |/
  | o  14:(a7cabd7bd9c2|671b9d7eeaec)@default\(draft\) bk:\[\] bumped update to 1cf0aacfd363: (re)
  | |
  o |  9:7bc2f5967f5e@default(draft) bk:[] add c
  | |
  | o  8:1cf0aacfd363@default(public) bk:[] newer a
  |/
  o  7:66719795a494@default(public) bk:[changea] changea
  |
  o  0:07f494440405@default(public) bk:[] adda
  

Stabilize it

  $ hg evolve -qn --traceback --confirm
  merge:[19] More addition
  with: [17] More addition
  base: [15] More addition
  perform evolve? [Ny] y
  hg update -c eacc9c8240fe &&
  hg merge d2f173e25686 &&
  hg commit -m "auto merge resolving conflict between eacc9c8240fe and d2f173e25686"&&
  hg up -C 3932c176bbaa &&
  hg revert --all --rev tip &&
  hg commit -m "`hg log -r eacc9c8240fe --template={desc}`";
  $ hg evolve -v
  merge:[19] More addition
  with: [17] More addition
  base: [15] More addition
  merging divergent changeset
  resolving manifests
  merging a
  0 files updated, 1 files merged, 0 files removed, 0 files unresolved
  amending changeset eacc9c8240fe
  a
  copying changeset 283ccd10e2b8 to 7bc2f5967f5e
  a
  committed changeset 21:f344982e63c4
  working directory is now at f344982e63c4
  $ hg st
  $ glog
  @  21:f344982e63c4@default(draft) bk:[] More addition
  |
  | o  14:(a7cabd7bd9c2|671b9d7eeaec)@default\(draft\) bk:\[\] bumped update to 1cf0aacfd363: (re)
  | |
  o |  9:7bc2f5967f5e@default(draft) bk:[] add c
  | |
  | o  8:1cf0aacfd363@default(public) bk:[] newer a
  |/
  o  7:66719795a494@default(public) bk:[changea] changea
  |
  o  0:07f494440405@default(public) bk:[] adda
  
  $ hg summary
  parent: 21:f344982e63c4 tip
   More addition
  branch: default
  commit: (clean)
  update: 2 new changesets, 2 branch heads (merge)
  $ hg export .
  # HG changeset patch
  # User test
  # Date 0 0
  #      Thu Jan 01 00:00:00 1970 +0000
  # Node ID f344982e63c462b1e44c0371c804685389e673a9
  # Parent  7bc2f5967f5e4ed277f60a89b7b04cc5d6407ced
  More addition
  
  diff -r 7bc2f5967f5e -r f344982e63c4 a
  --- a/a	Thu Jan 01 00:00:00 1970 +0000
  +++ b/a	Thu Jan 01 00:00:00 1970 +0000
  @@ -1,1 +1,9 @@
  +jungle
   a
  +flore
  +arthur
  +zephir
  +some
  +less
  +conflict
  +babar

Check conflict during divergence resolution
-------------------------------------------------

  $ hg up --hidden 15
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory parent is obsolete!
  $ echo 'gotta break' >> a
  $ hg amend
  2 new divergent changesets
  $ hg phase 'divergent()'
  21: draft
  23: draft
  $ hg evolve -qn
  hg update -c 36e188246d67 &&
  hg merge f344982e63c4 &&
  hg commit -m "auto merge resolving conflict between 36e188246d67 and f344982e63c4"&&
  hg up -C 3932c176bbaa &&
  hg revert --all --rev tip &&
  hg commit -m "`hg log -r 36e188246d67 --template={desc}`";
  $ hg evolve
  merge:[23] More addition
  with: [21] More addition
  base: [15] More addition
  merging a
  warning: conflicts during merge.
  merging a incomplete! (edit conflicts, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
  abort: merge conflict between several amendments (this is not automated yet)
  (/!\ You can try:
  /!\ * manual merge + resolve => new cset X
  /!\ * hg up to the parent of the amended changeset (which are named W and Z)
  /!\ * hg revert --all -r X
  /!\ * hg ci -m "same message as the amended changeset" => new cset Y
  /!\ * hg kill -n Y W Z
  )
  [255]