tests/test-check-execute.t

dirstate: use a single closure for get_flags

The previous code was overlooking fallback when neither symlink not exec was
supported.

The number of "variants" is getting too high, so I am consolidating this in a
single closure that should be easier to maintains.

This also ensure that fallback flags are always taken into account.

(they are not user code yet, but small experimentation shown that the feature
was working as intended.)

A a small side effect we need to check for symlink support more lazily and this
show up in the test in a couple of places.

Differential Revision: https://phab.mercurial-scm.org/D11728

#require test-repo execbit

  $ . "$TESTDIR/helpers-testrepo.sh"
  $ cd "`dirname "$TESTDIR"`"

look for python scripts without the execute bit

  $ testrepohg files 'set:**.py and not exec() and grep(r"^#!.*?python")'
  [1]

look for python scripts with execute bit but not shebang

  $ testrepohg files 'set:**.py and exec() and not grep(r"^#!.*?python")'
  [1]

look for shell scripts with execute bit but not shebang

  $ testrepohg files 'set:**.sh and exec() and not grep(r"^#!.*(ba)?sh")'
  [1]

look for non scripts with no shebang

  $ testrepohg files 'set:exec() and not **.sh and not **.py and not grep(r"^#!")'
  [1]