import os
from twisted.python.procutils import which
def getCommand(name):
possibles = which(name)
if not possibles:
raise RuntimeError("Couldn't find executable for '%s'" % name)
#
# Under windows, if there is more than one executable "thing"
# that matches (e.g. *.bat, *.cmd and *.exe), we not just use
# the first in alphabet (*.bat/*.cmd) if there is a *.exe.
# e.g. under MSysGit/Windows, there is both a git.cmd and a
# git.exe on path, but we want the git.exe, since the git.cmd
# does not seem to work properly with regard to errors raised
# and catched in buildbot slave command (vcs.py)
#
if os.name == "nt" and len(possibles) > 1:
possibles_exe = which(name + ".exe")
if possibles_exe:
return possibles_exe[0]
return possibles[0]
def rmdirRecursive(dir):
"""This is a replacement for shutil.rmtree that works better under
windows. Thanks to Bear at the OSAF for the code."""
if not os.path.exists(dir):
return
if os.path.islink(dir):
os.remove(dir)
return
# Verify the directory is read/write/execute for the current user
os.chmod(dir, 0700)
for name in os.listdir(dir):
full_name = os.path.join(dir, name)
# on Windows, if we don't have write permission we can't remove
# the file/directory either, so turn that on
if os.name == 'nt':
if not os.access(full_name, os.W_OK):
# I think this is now redundant, but I don't have an NT
# machine to test on, so I'm going to leave it in place
# -warner
os.chmod(full_name, 0600)
if os.path.isdir(full_name):
rmdirRecursive(full_name)
else:
if os.path.isfile(full_name):
os.chmod(full_name, 0700)
os.remove(full_name)
os.rmdir(dir)
|