view tests/test-metaedit.t @ 4416:b2a8e67b0933

evolve: handle a case in pubic-div when merging results in same as public

In public divergence resolution, what we do is:
1) first apply content divergence resolution
2) then phase divergent resolution on resultant node of 1) case

While doing case 1 it is possible that result of merging the two csets
would have same changes as public one contains. And then processing
the case 2 would create an empty commit which is not something we want
to do.
So this patch catch that same case when merging results in same as public
cset and don't create a new node, instead to solve the divergence
it just add a obsmarker from "other divergent" to "public divergent"
i.e. [other, (public,)]

Next patch will add the continue case handling for this same case.

This patch also adds the tests for the different cases which are possible
for the above mentioned case.
There is test for continue case too which is broken in this patch
and will be fixed in next patch.

  $ cat >> $HGRCPATH <<EOF
  > [defaults]
  > amend=-d "0 0"
  > fold=-d "0 0"
  > metaedit=-d "0 0"
  > [web]
  > push_ssl = false
  > allow_push = *
  > [phases]
  > publish = False
  > [alias]
  > qlog = log --template='{rev} - {node|short} {desc} ({phase})\n'
  > [diff]
  > git = 1
  > unified = 0
  > [extensions]
  > EOF
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH
  $ mkcommit() {
  >    echo "$1" > "$1"
  >    hg add "$1"
  >    hg ci -m "$1"
  > }

  $ mkstack() {
  >    # Creates a stack of commit based on $1 with messages from $2, $3 ..
  >    hg update $1 -C
  >    shift
  >    mkcommits $*
  > }

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

  $ shaof() {
  >   hg log -T {node} -r "first(desc($1))"
  > }

  $ mkcommits() {
  >   for i in $@; do mkcommit $i ; done
  > }

##########################
importing Parren test
##########################

  $ cat << EOF >> $HGRCPATH
  > [ui]
  > logtemplate = "{rev}\t{bookmarks}: {desc|firstline} - {author|user}\n"
  > EOF

HG METAEDIT
===============================

Setup the Base Repo
-------------------

We start with a plain base repo::

  $ hg init $TESTTMP/metaedit; cd $TESTTMP/metaedit
  $ mkcommit "ROOT"
  $ hg phase --public "desc(ROOT)"
  $ mkcommit "A"
  $ mkcommit "B"
  $ hg up "desc(A)"
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit "C"
  created new head
  $ mkcommit "D"
  $ echo "D'" > D
  $ hg amend -m "D2"
  $ hg up "desc(C)"
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit "E"
  created new head
  $ mkcommit "F"

Test
----

  $ hg log -G
  @  7	: F - test
  |
  o  6	: E - test
  |
  | o  5	: D2 - test
  |/
  o  3	: C - test
  |
  | o  2	: B - test
  |/
  o  1	: A - test
  |
  o  0	: ROOT - test
  
  $ hg update --clean .
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg metaedit -r 0
  abort: cannot edit commit information for public revisions
  [255]
  $ hg metaedit --fold
  abort: revisions must be specified with --fold
  [255]
  $ hg metaedit -r 0 --fold
  abort: cannot fold public changesets: ea207398892e
  (see 'hg help phases' for details)
  [255]
  $ hg metaedit 'desc(C) + desc(F)' --fold
  abort: cannot fold non-linear revisions (multiple roots given)
  [255]
  $ hg metaedit "desc(C)::desc(D2) + desc(E)" --fold
  abort: cannot fold non-linear revisions (multiple heads given)
  [255]
check that metaedit respects allowunstable
  $ hg metaedit '.^' --config 'experimental.evolution=createmarkers, allnewcommands'
  abort: cannot edit commit information in the middle of a stack
  (587528abfffe will become unstable and new unstable changes are not allowed)
  [255]
  $ hg metaedit 'desc(A)::desc(B)' --fold --config 'experimental.evolution=createmarkers, allnewcommands'
  abort: fold will orphan 4 descendants
  (see 'hg help evolution.instability')
  [255]
  $ hg metaedit --user foobar
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg log --template '{rev}: {author}\n' -r 'desc(F):' --hidden
  7: test
  8: foobar
  $ hg log --template '{rev}: {author}\n' -r .
  8: foobar

TODO: support this
  $ hg metaedit '.^::.'
  abort: editing multiple revisions without --fold is not currently supported
  [255]

  $ HGEDITOR=cat hg metaedit '.^::.' --fold --note 'folding changesets using metaedit,
  > and newlines'
  abort: note cannot contain a newline
  [255]
  $ HGEDITOR=cat hg metaedit '.^::.' --fold --note "folding changesets using metaedit"
  HG: This is a fold of 2 changesets.
  HG: Commit message of changeset 6.
  
  E
  
  HG: Commit message of changeset 8.
  
  F
  
  
  
  HG: Enter commit message.  Lines beginning with 'HG:' are removed.
  HG: Leave message empty to abort commit.
  HG: --
  HG: user: test
  HG: branch 'default'
  HG: added E
  HG: added F
  2 changesets folded
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ glog -r .
  @  9:a08d35fd7d9d@default(draft) E
  |
  ~

  $ hg obslog -r .
  @    a08d35fd7d9d (9) E
  |\
  x |  212b2a2b87cd (8) F
  | |    rewritten(description, user, parent, content) as a08d35fd7d9d using metaedit by test (Thu Jan 01 00:00:00 1970 +0000)
  | |      note: folding changesets using metaedit
  | |
  | x  c2bd843aa246 (6) E
  |      rewritten(description, content) as a08d35fd7d9d using metaedit by test (Thu Jan 01 00:00:00 1970 +0000)
  |        note: folding changesets using metaedit
  |
  x  587528abfffe (7) F
       rewritten(user) as 212b2a2b87cd using metaedit by test (Thu Jan 01 00:00:00 1970 +0000)
  

no new commit is created here because the date is the same
  $ HGEDITOR=cat hg metaedit
  E
  
  
  F
  
  
  HG: Enter commit message.  Lines beginning with 'HG:' are removed.
  HG: Leave message empty to abort commit.
  HG: --
  HG: user: test
  HG: branch 'default'
  HG: added E
  HG: added F
  nothing changed

  $ glog -r '.^::.'
  @  9:a08d35fd7d9d@default(draft) E
  |
  o  3:3260958f1169@default(draft) C
  |
  ~

TODO: don't create a new commit in this case, we should take the date of the
old commit (we add a default date with a value to show that metaedit is taking
the current date to generate the hash, this way we still have a stable hash
but highlight the bug)
  $ hg metaedit --config defaults.metaedit= --config devel.default-date="42 0"
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg log -r '.^::.' --template '{rev}: {desc|firstline}\n'
  3: C
  10: E

  $ hg up .^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ hg metaedit --user foobar2 tip
  $ hg log --template '{rev}: {author}\n' -r "user(foobar):" --hidden
  8: foobar
  9: test
  10: test
  11: foobar2
  $ hg diff -r "10" -r "11" --hidden

'fold' one commit
  $ HGUSER=foobar3 hg metaedit "desc(D2)" --fold -U
  1 changesets folded
  $ hg log -r "tip" --template '{rev}: {author}\n'
  12: foobar3