view tests/test-merge-subrepos.t @ 33302:36a415b5a4b2

localrepo: add sparse caches

The sparse extension maintains caches for the sparse files
to a signature and a signature to a matcher. This allows the
sparse matchers to be resolved quickly, which is apparently
something that can occur in loops.

This patch ports the sparse caches to the localrepo class
pretty much as-is. There is potentially room to improve the
caching mechanism. But that can be done as a follow-up.

The default invalidatecaches() now clears the relevant sparse
cache. invalidatesignaturecache() has been moved to sparse.py.

  $ hg init

  $ echo a > a
  $ hg ci -qAm 'add a'

  $ hg init subrepo
  $ echo 'subrepo = http://example.net/libfoo' > .hgsub
  $ hg ci -qAm 'added subrepo'

  $ hg up -qC 0
  $ echo ax > a
  $ hg ci -m 'changed a'
  created new head

  $ hg up -qC 1
  $ cd subrepo
  $ echo b > b
  $ hg add b
  $ cd ..

Should fail, since there are added files to subrepo:

  $ hg merge
  abort: uncommitted changes in subrepository 'subrepo'
  [255]

Deleted files trigger a '+' marker in top level repos.  Deleted files are also
noticed by `update --check` in the top level repo.

  $ hg ci -Sqm 'add b'
  $ rm a
  $ hg id
  cb66ec850af7+ tip
  $ hg sum
  parent: 3:cb66ec850af7 tip
   add b
  branch: default
  commit: 1 deleted (clean)
  update: 1 new changesets, 2 branch heads (merge)
  phases: 4 draft

  $ hg up --check -r '.^'
  abort: uncommitted changes
  [255]
  $ hg st -S
  ! a
  $ hg up -Cq .

Test that dirty is consistent through subrepos

  $ rm subrepo/b

TODO: a deleted subrepo file should be flagged as dirty, like the top level repo

  $ hg id
  cb66ec850af7 tip

TODO: a deleted file should be listed as such, like the top level repo

  $ hg sum
  parent: 3:cb66ec850af7 tip
   add b
  branch: default
  commit: (clean)
  update: 1 new changesets, 2 branch heads (merge)
  phases: 4 draft

Modified subrepo files are noticed by `update --check` and `summary`

  $ echo mod > subrepo/b
  $ hg st -S
  M subrepo/b

  $ hg up -r '.^' --check
  abort: uncommitted changes in subrepository 'subrepo'
  [255]

  $ hg sum
  parent: 3:cb66ec850af7 tip
   add b
  branch: default
  commit: 1 subrepos
  update: 1 new changesets, 2 branch heads (merge)
  phases: 4 draft

TODO: why is -R needed here?  If it's because the subrepo is treated as a
discrete unit, then this should probably warn or something.
  $ hg revert -R subrepo --no-backup subrepo/b -r .

  $ rm subrepo/b
  $ hg st -S
  ! subrepo/b

TODO: --check should notice a subrepo with a missing file.  It already notices
a modified file.

  $ hg up -r '.^' --check
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

TODO: update without --clean shouldn't restore a deleted subrepo file, since it
doesn't restore a deleted top level repo file.
  $ hg st -S

  $ hg bookmark -r tip @other
  $ echo xyz > subrepo/c
  $ hg ci -SAm 'add c'
  adding subrepo/c
  committing subrepository subrepo
  created new head
  $ rm subrepo/c

Merge sees deleted subrepo files as an uncommitted change

  $ hg merge @other
   subrepository subrepo diverged (local revision: 2b4750dcc93f, remote revision: cde40f86152f)
  (M)erge, keep (l)ocal [working copy] or keep (r)emote [merge rev]? m
  abort: uncommitted changes (in subrepo subrepo)
  (use 'hg status' to list changes)
  [255]