tests/test-permissions.t

mq: comply with filtering when injecting fake tags (issue3812)

mq was injecting fake tags whenever the revisions were accessible
to the filtering level.

This issue impacts hgweb since it's common to have "secret" mq
patches. As secret changesets are filtered by hgweb, the tags
computation could break.

  $ "$TESTDIR/hghave" unix-permissions || exit 80

  $ hg init t
  $ cd t

  $ echo foo > a
  $ hg add a

  $ hg commit -m "1"

  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 1 changesets, 1 total revisions

  $ chmod -r .hg/store/data/a.i

  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  abort: Permission denied: $TESTTMP/t/.hg/store/data/a.i
  [255]

  $ chmod +r .hg/store/data/a.i

  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 1 changesets, 1 total revisions

  $ chmod -w .hg/store/data/a.i

  $ echo barber > a
  $ hg commit -m "2"
  trouble committing a!
  abort: Permission denied: $TESTTMP/t/.hg/store/data/a.i
  [255]

  $ chmod -w .

  $ hg diff --nodates
  diff -r 2a18120dc1c9 a
  --- a/a
  +++ b/a
  @@ -1,1 +1,1 @@
  -foo
  +barber

  $ chmod +w .

  $ chmod +w .hg/store/data/a.i
  $ mkdir dir
  $ touch dir/a
  $ hg status
  M a
  ? dir/a
  $ chmod -rx dir
  $ hg status
  dir: Permission denied
  M a

Reenable perm to allow deletion:

  $ chmod +rx dir

  $ cd ..