tests/test-walk

support hooks written in python.

to write hook in python, create module with hook function inside.
make sure mercurial can import module (put it in $PYTHONPATH or load it
as extension).  hook function should look like this:

def myhook(ui, repo, hooktype, **kwargs):
   if hook_passes:
      return True
   elif hook_explicitly_fails:
      return False
   elif some_other_failure:
      import util
      raise util.Abort('helpful failure message')
   else:
      return
      # implicit return of None makes hook fail!

then in .hgrc, add hook with "python:" prefix:

[hooks]
commit = python:mymodule.myhook

#!/bin/sh

mkdir t
cd t
hg init
mkdir -p beans
for b in kidney navy turtle borlotti black pinto; do
    echo $b > beans/$b
done
mkdir -p mammals/Procyonidae
for m in cacomistle coatimundi raccoon; do
    echo $m > mammals/Procyonidae/$m
done
echo skunk > mammals/skunk
echo fennel > fennel
echo fenugreek > fenugreek
echo fiddlehead > fiddlehead
echo glob:glob > glob:glob
hg addremove
hg commit -m "commit #0" -d "1000000 0"
hg debugwalk
cd mammals
hg debugwalk .
hg debugwalk Procyonidae
cd Procyonidae
hg debugwalk .
hg debugwalk ..
cd ..
hg debugwalk ../beans
hg debugwalk .
hg debugwalk .hg
hg debugwalk ../.hg
cd ..
hg debugwalk -Ibeans
hg debugwalk 'glob:mammals/../beans/b*'
hg debugwalk '-X*/Procyonidae' mammals
hg debugwalk path:mammals
hg debugwalk ..
hg debugwalk beans/../..
hg debugwalk .hg
hg debugwalk beans/../.hg
hg debugwalk beans/../.hg/data
hg debugwalk beans/.hg
# Don't know how to test absolute paths without always getting a false
# error.
#hg debugwalk `pwd`/beans
#hg debugwalk `pwd`/..
hg debugwalk glob:\*
hg debugwalk 're:.*[kb]$'
hg debugwalk path:beans/black
hg debugwalk beans 'glob:beans/*'
hg debugwalk 'glob:j*'
hg debugwalk NOEXIST
mkfifo fifo
hg debugwalk fifo
rm fenugreek
hg debugwalk fenugreek
hg rm fenugreek
hg debugwalk fenugreek
touch new
hg debugwalk new