contrib/python-hook-examples.py

tests/run-tests: avoid C:/ in arguments

MSYS replaces C:/... in arguments with C;... as it interprets the C:/ as a
colon separated POSIX path list. The colon is replaced with ; (path separator
on Windows) according to

  http://www.mingw.org/wiki/Posix_path_conversion

So we must not replace \ with / for neither $TESTTMP nor $TESTDIR, but we
have to keep replacing \ with / for the Popen4 call of function hghave. If we
don't do the latter, test-run-tests.t will fail with

  $ python run-tests.py --local test-run-tests.t

  --- C:\Users\adi\hgrepos\hg-main\tests\test-run-tests.t
  +++ C:\Users\adi\hgrepos\hg-main\tests\test-run-tests.t.err
  @@ -70,6 +70,7 @@
     tested
   #else
     $ echo skipped
  +  skipped
   #endif

   #if false


An additional tweak in test-ssh.t is needed that globs away an encoded path,
as it can't be translated back to $TESTTMP, because the backslashes in the
output have been already encoded as %5C.

This patch makes test-ssh.t pass in MSYS on Windows.

'''
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)))