view tests/test-metaedit.t @ 3315:c153441cdc0e

stablesort: record, cache and reuse jump

Iterating below a merge means two things:

1) iterate over the part exclusive to the higher parents,
2) iterate from the lower parents.

While iterating on the exclusive part, there will be case were we just go the
next natural parent, and case were we'll have to "jump" to another revision. If
we record all point this "jump" happens and their target, we can easily
reproduce the iteration in the future. With that information we can iterate over
the exclusive part of the merge without having to compute it entirely.

In addition we store the reason of the jump. This will help the stable range
processing later.

  $ 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 by test (Thu Jan 01 00:00:00 1970 +0000)
  | |      note: folding changesets using metaedit
  | |
  | x  c2bd843aa246 (6) E
  |      rewritten(description, content) as a08d35fd7d9d by test (Thu Jan 01 00:00:00 1970 +0000)
  |        note: folding changesets using metaedit
  |
  x  587528abfffe (7) F
       rewritten(user) as 212b2a2b87cd 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