view tests/test-rebase-mq-skip.t @ 42193:14589f1989e9 stable

context: check file exists before getting data from _wrappedctx

overlayworkingctx class is used to do in-memory merging. The data() function of
that class has logic to look for data() in the wrappedctx if the file data in
cache is empty and if the file is dirty. This assumes that if a file is dirty
and cache has empty data for it, it will exists in the _wrappedctx.

However this assumption can be False in case when we are merging a file which is
empty in destination. In these cases, the backup file 'foo.orig' created by our
internal merge algorithms will be empty, however it won't be present in
_wrappedctx. This case will lead us to error like the one this patch is fixing.

Let's only fallback to getting data from wrappedctx if cache has 'None' as data.

Differential Revision: https://phab.mercurial-scm.org/D6308

This emulates the effects of an hg pull --rebase in which the remote repo
already has one local mq patch

  $ cat >> $HGRCPATH <<EOF
  > [extensions]
  > rebase=
  > mq=
  > 
  > [phases]
  > publish=False
  > 
  > [alias]
  > tglog = log -G --template "{rev}: {node|short} '{desc}' tags: {tags}\n"
  > EOF


  $ hg init a
  $ cd a
  $ hg qinit -c

  $ echo c1 > c1
  $ hg add c1
  $ hg ci -m C1

  $ echo r1 > r1
  $ hg add r1
  $ hg ci -m R1

  $ hg up -q 0

  $ hg qnew p0.patch -d '1 0'
  $ echo p0 > p0
  $ hg add p0
  $ hg qref -m P0

  $ hg qnew p1.patch -d '2 0'
  $ echo p1 > p1
  $ hg add p1
  $ hg qref -m P1

  $ hg export qtip > p1.patch

  $ hg up -q -C 1

  $ hg import p1.patch
  applying p1.patch

  $ rm p1.patch

  $ hg up -q -C qtip

  $ hg rebase -v
  rebasing 2:13a46ce44f60 "P0" (p0.patch qbase)
  resolving manifests
  removing p0
  getting r1
  resolving manifests
  getting p0
  committing files:
  p0
  committing manifest
  committing changelog
  rebasing 3:148775c71080 "P1" (p1.patch qtip)
  resolving manifests
  note: not rebasing 3:148775c71080 "P1" (p1.patch qtip), its destination already has all its changes
  rebase merging completed
  updating mq patch p0.patch to 5:9ecc820b1737
  $TESTTMP/a/.hg/patches/p0.patch
  2 changesets found
  uncompressed size of bundle content:
       348 (changelog)
       324 (manifests)
       129  p0
       129  p1
  saved backup bundle to $TESTTMP/a/.hg/strip-backup/13a46ce44f60-5da6ecfb-rebase.hg
  2 changesets found
  uncompressed size of bundle content:
       403 (changelog)
       324 (manifests)
       129  p0
       129  p1
  adding branch
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  rebase completed
  1 revisions have been skipped

  $ hg tglog
  @  3: 9ecc820b1737 'P0' tags: p0.patch qbase qtip tip
  |
  o  2: 869d8b134a27 'P1' tags: qparent
  |
  o  1: da108f2755df 'R1' tags:
  |
  o  0: cd320d50b341 'C1' tags:
  
  $ cd ..


  $ hg init b
  $ cd b
  $ hg qinit -c

  $ for i in r0 r1 r2 r3 r4 r5 r6;
  > do
  >     echo $i > $i
  >     hg ci -Am $i
  > done
  adding r0
  adding r1
  adding r2
  adding r3
  adding r4
  adding r5
  adding r6

  $ hg qimport -r 1:tip

  $ hg up -q 0

  $ for i in r1 r3 r7 r8;
  > do
  >     echo $i > $i
  >     hg ci -Am branch2-$i
  > done
  adding r1
  created new head
  adding r3
  adding r7
  adding r8

  $ echo somethingelse > r4
  $ hg ci -Am branch2-r4
  adding r4

  $ echo r6 > r6
  $ hg ci -Am branch2-r6
  adding r6

  $ hg up -q qtip

  $ HGMERGE=internal:fail hg rebase
  rebasing 1:b4bffa6e4776 "r1" (qbase r1)
  note: not rebasing 1:b4bffa6e4776 "r1" (qbase r1), its destination already has all its changes
  rebasing 2:c0fd129beb01 "r2" (r2)
  rebasing 3:6ff5b8feed8e "r3" (r3)
  note: not rebasing 3:6ff5b8feed8e "r3" (r3), its destination already has all its changes
  rebasing 4:094320fec554 "r4" (r4)
  unresolved conflicts (see hg resolve, then hg rebase --continue)
  [1]

  $ HGMERGE=internal:local hg resolve --all
  (no more unresolved files)
  continue: hg rebase --continue

  $ hg rebase --continue
  already rebased 1:b4bffa6e4776 "r1" (qbase r1) as 057f55ff8f44
  already rebased 2:c0fd129beb01 "r2" (r2) as 1660ab13ce9a
  already rebased 3:6ff5b8feed8e "r3" (r3) as 1660ab13ce9a
  rebasing 4:094320fec554 "r4" (r4)
  note: not rebasing 4:094320fec554 "r4" (r4), its destination already has all its changes
  rebasing 5:681a378595ba "r5" (r5)
  rebasing 6:512a1f24768b "r6" (qtip r6)
  note: not rebasing 6:512a1f24768b "r6" (qtip r6), its destination already has all its changes
  saved backup bundle to $TESTTMP/b/.hg/strip-backup/b4bffa6e4776-b9bfb84d-rebase.hg

  $ hg tglog
  @  8: 0b9735ce8f0a 'r5' tags: qtip r5 tip
  |
  o  7: 1660ab13ce9a 'r2' tags: qbase r2
  |
  o  6: 057f55ff8f44 'branch2-r6' tags: qparent
  |
  o  5: 1d7287f8deb1 'branch2-r4' tags:
  |
  o  4: 3c10b9db2bd5 'branch2-r8' tags:
  |
  o  3: b684023158dc 'branch2-r7' tags:
  |
  o  2: d817754b1251 'branch2-r3' tags:
  |
  o  1: 0621a206f8a4 'branch2-r1' tags:
  |
  o  0: 222799e2f90b 'r0' tags:
  

  $ cd ..