view tests/test-convert-hg-startrev.t @ 12765:5eed9ceebd64

merge: when --tool is specified, disable HGMERGE by setting to empty string

HGMERGE has different semantics than ui.merge.  HGMERGE should hold the name
on an executable in your path, or an absolute tool path.  As such, it's not
safe to simply copy the user's specified --tool value into HGMERGE.  Instead,
we disable HGMERGE by setting it to an empty string.

  $ cat > $HGRCPATH <<EOF
  > [extensions]
  > graphlog =
  > convert =
  > [convert]
  > hg.saverev = yes
  > EOF

  $ glog()
  > {
  >     hg -R "$1" glog --template '{rev} "{desc}" files: {files}\n'
  > }

  $ hg init source
  $ cd source

  $ echo a > a
  $ echo b > b
  $ hg ci -d '0 0' -qAm '0: add a b'
  $ echo c > c
  $ hg ci -d '1 0' -qAm '1: add c'
  $ hg copy a e
  $ echo b >> b
  $ hg ci -d '2 0' -qAm '2: copy e from a, change b'
  $ hg up -C 0
  1 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo a >> a
  $ hg ci -d '3 0' -qAm '3: change a'
  $ hg merge
  merging a and e to e
  2 files updated, 1 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg copy b d
  $ hg ci -d '4 0' -qAm '4: merge 2 and 3, copy d from b'
  $ echo a >> a
  $ hg ci -d '5 0' -qAm '5: change a'
  $ cd ..

Convert from null revision

  $ hg convert --config convert.hg.startrev=null source empty
  initializing destination empty repository
  scanning source...
  sorting...
  converting...

  $ glog empty

Convert from zero revision

  $ hg convert --config convert.hg.startrev=0 source full
  initializing destination full repository
  scanning source...
  sorting...
  converting...
  5 0: add a b
  4 1: add c
  3 2: copy e from a, change b
  2 3: change a
  1 4: merge 2 and 3, copy d from b
  0 5: change a

  $ glog full
  o  5 "5: change a" files: a
  |
  o    4 "4: merge 2 and 3, copy d from b" files: d e
  |\
  | o  3 "3: change a" files: a
  | |
  o |  2 "2: copy e from a, change b" files: b e
  | |
  o |  1 "1: add c" files: c
  |/
  o  0 "0: add a b" files: a b
  
Convert from merge parent

  $ hg convert --config convert.hg.startrev=1 source conv1
  initializing destination conv1 repository
  scanning source...
  sorting...
  converting...
  3 1: add c
  2 2: copy e from a, change b
  1 4: merge 2 and 3, copy d from b
  0 5: change a

  $ glog conv1
  o  3 "5: change a" files: a
  |
  o  2 "4: merge 2 and 3, copy d from b" files: a d e
  |
  o  1 "2: copy e from a, change b" files: b e
  |
  o  0 "1: add c" files: a b c
  
  $ cd conv1

Check copy preservation

  $ hg log --follow --copies e
  changeset:   2:79818a521a40
  user:        test
  date:        Thu Jan 01 00:00:04 1970 +0000
  summary:     4: merge 2 and 3, copy d from b
  
  changeset:   1:3e6201832cce
  user:        test
  date:        Thu Jan 01 00:00:02 1970 +0000
  summary:     2: copy e from a, change b
  
Check copy removal on missing parent

  $ hg log --follow --copies d
  changeset:   2:79818a521a40
  user:        test
  date:        Thu Jan 01 00:00:04 1970 +0000
  summary:     4: merge 2 and 3, copy d from b
  
  $ hg cat -r tip a b
  a
  a
  a
  b
  b
  $ hg -q verify
  $ cd ..

Convert from merge

  $ hg convert --config convert.hg.startrev=4 source conv4
  initializing destination conv4 repository
  scanning source...
  sorting...
  converting...
  1 4: merge 2 and 3, copy d from b
  0 5: change a
  $ glog conv4
  o  1 "5: change a" files: a
  |
  o  0 "4: merge 2 and 3, copy d from b" files: a b c d e
  
  $ cd conv4
  $ hg up -C
  5 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg cat -r tip a b
  a
  a
  a
  b
  b
  $ hg -q verify
  $ cd ..