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from popen2 import Popen4
import os
import config
client = config.get_val("arch_client")
if client is None:
client = "tla"
config.set_val("arch_client", client)
def invoke(args):
q=Popen4(args)
output = q.fromchild.read()
status = q.wait()
if os.WIFEXITED(status):
return os.WEXITSTATUS(status)
raise Exception("Command failed")
def invoke_client(*args, **kwargs):
status = invoke((client,) + args)
if status not in (0,):
raise Exception("Command failed")
def add_id(filename):
invoke_client("add-id", filename)
def delete_id(filename):
invoke_client("delete-id", filename)
def mkdir(path):
os.mkdir(path)
add_id(path)
def set_file_contents(path, contents):
add = not os.path.exists(path)
file(path, "wb").write(contents)
if add:
add_id(path)
def unlink(path):
try:
os.unlink(path)
delete_id(path)
except OSError, e:
if e.errno != 2:
raise
def detect(path):
"""Detect whether a directory is revision-controlled using Arch"""
path = os.path.realpath(path)
while True:
if os.path.exists(os.path.join(path, "{arch}")):
return True
if path == "/":
return False
path = os.path.dirname(path)
name = "Arch"
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