view tests/test-narrow-merge.t @ 50942:75d3306fbc9a stable

tags: avoid expensive access to repo.changelog in a loop

repo.changelog needs some cache invalidation when run on filtered repository.
Accessing it in that loop can be expensive when there is many heads (e.g.
mozilla try and it 25 000 heads).

Note that the loop itself seems useless, but after this patch it no longer take
about ⅛  of the time we spend computing cache for mozilla try.

before :
! wall 0.350994 comb 0.350000 user 0.330000 sys 0.020000 (median of 28)

after :
! wall 0.319520 comb 0.310000 user 0.290000 sys 0.020000 (median of 30)

#testcases flat tree

  $ . "$TESTDIR/narrow-library.sh"

#if tree
  $ cat << EOF >> $HGRCPATH
  > [experimental]
  > treemanifest = 1
  > EOF
#endif

create full repo

  $ hg init master
  $ cd master
  $ cat >> .hg/hgrc <<EOF
  > [narrow]
  > serveellipses=True
  > EOF

  $ mkdir inside
  $ echo inside1 > inside/f1
  $ echo inside2 > inside/f2
  $ mkdir outside
  $ echo outside1 > outside/f1
  $ echo outside2 > outside/f2
  $ hg ci -Aqm 'initial'

  $ echo modified > inside/f1
  $ hg ci -qm 'modify inside/f1'

  $ hg update -q 0
  $ echo modified > inside/f2
  $ hg ci -qm 'modify inside/f2'

  $ hg update -q 0
  $ echo modified2 > inside/f1
  $ hg ci -qm 'conflicting inside/f1'

  $ hg update -q 0
  $ echo modified > outside/f1
  $ hg ci -qm 'modify outside/f1'

  $ hg update -q 0
  $ echo modified2 > outside/f1
  $ hg ci -qm 'conflicting outside/f1'

  $ cd ..

  $ hg clone --narrow ssh://user@dummy/master narrow --include inside
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 6 changesets with 5 changes to 2 files (+4 heads)
  new changesets *:* (glob)
  updating to branch default
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd narrow

  $ hg update -q 0

Can merge in when no files outside narrow spec are involved

  $ hg update -q 'desc("modify inside/f1")'
  $ hg merge 'desc("modify inside/f2")'
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg commit -m 'merge inside changes'

Can merge conflicting changes inside narrow spec

  $ hg update -q 'desc("modify inside/f1")'
  $ hg merge 'desc("conflicting inside/f1")' 2>&1 | grep -E -v '(warning:|incomplete!)'
  merging inside/f1
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
  $ echo modified3 > inside/f1
  $ hg resolve -m
  (no more unresolved files)
  $ hg commit -m 'merge inside/f1'

TODO: Can merge non-conflicting changes outside narrow spec

  $ hg update -q 'desc("modify inside/f1")'

#if flat

  $ hg merge 'desc("modify outside/f1")'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

status should be clean

  $ hg status
  ? inside/f1.orig

file out of the spec should still not be in the dirstate at all

  $ hg debugdirstate | grep outside/f1
  [1]

Commit that merge

  $ hg ci -m 'merge from outside to inside'

status should be clean

  $ hg status
  ? inside/f1.orig

file out of the spec should not be in the mergestate anymore

  $ hg debugmergestate | grep outside/f1
  [1]

file out of the spec should still not be in the dirstate at all

  $ hg debugdirstate | grep outside/f1
  [1]

The filenode used should come from p2

  $ hg manifest --debug --rev . | grep outside/f1
  83cd11431a3b2aff8a3995e5f27bcf33cdb5be98 644   outside/f1
  $ hg manifest --debug --rev 'p1(.)' | grep outside/f1
  c6b956c48be2cd4fa94be16002aba311143806fa 644   outside/f1
  $ hg manifest --debug --rev 'p2(.)' | grep outside/f1
  83cd11431a3b2aff8a3995e5f27bcf33cdb5be98 644   outside/f1


remove the commit to get in the previous situation again

  $ hg debugstrip -r .
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/48eb25338b19-a1bb8350-backup.hg

#else

  $ hg merge 'desc("modify outside/f1")'
  abort: merge affects file 'outside/' outside narrow, which is not yet supported (tree !)
  (merging in the other direction may work)
  [255]

#endif

  $ hg update -q 'desc("modify outside/f1")'
  $ hg merge 'desc("modify inside/f1")'
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg ci -m 'merge from inside to outside'

Refuses merge of conflicting outside changes

  $ hg update -q 'desc("modify outside/f1")'
  $ hg merge 'desc("conflicting outside/f1")'
  abort: conflict in file 'outside/f1' is outside narrow clone (flat !)
  abort: conflict in file 'outside/' is outside narrow clone (tree !)
  [20]