view contrib/python-hook-examples.py @ 14493:5cc7905bccc9

run-tests: allow whitelisting tests that should always run

It's desirable to run some tests all the time, for example
test-check-pyflakes.t and test-check-code-hg.py. This allows passing
--whitelist as a path to a file (flag can be specified more than once)
which contains a list of files to whitelist. Whitelisted tests are run
even if they're blacklisted or wouldn't match a --keyword test
run. For example, to do a quick test of usehttp2, one can now do

  $ cat > test-whitelist <<EOF
  > test-check-pyflakes.t
  > test-check-code-hg.py
  > EOF
  $ (cd tests && ./run-tests.py --extra-config-opt 'ui.usehttp2=true'
  >                             -k http -j 8  --whitelist test-whitelist)

and have all http-specific tests run as well as the two code linters.

'''
Examples of useful python hooks for Mercurial.
'''
from mercurial import patch, util

def diffstat(ui, repo, **kwargs):
    '''Example usage:

    [hooks]
    commit.diffstat = python:/path/to/this/file.py:diffstat
    changegroup.diffstat = python:/path/to/this/file.py:diffstat
    '''
    if kwargs.get('parent2'):
        return
    node = kwargs['node']
    first = repo[node].p1().node()
    if 'url' in kwargs:
        last = repo['tip'].node()
    else:
        last = node
    diff = patch.diff(repo, first, last)
    ui.write(patch.diffstat(util.iterlines(diff)))