Dont trap SIGHUP on the other OS
# HG changeset patch
# User Edouard Gomez <ed.gomez@free.fr>
# Node ID 34a547cb33fe515ef4cdc8ccd173546671253ae9
# Parent 8c89408a7154d2da94766e957a088407fd0fef93
Dont trap SIGHUP on the other OS
HG doesn't work anymore on the other OS since signals are trapped.
This is due to the fact that as explained in Python docs not all
signals are defined for all platforms, so python was complaning about
missing signal.SIGHUP.
# util.py - utility functions and platform specfic implementations
#
# Copyright 2005 K. Thananchayan <thananck@yahoo.com>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.
import os
def unique(g):
seen = {}
for f in g:
if f not in seen:
seen[f] = 1
yield f
class CommandError(Exception): pass
def explain_exit(code):
"""return a 2-tuple (desc, code) describing a process's status"""
if os.WIFEXITED(code):
val = os.WEXITSTATUS(code)
return "exited with status %d" % val, val
elif os.WIFSIGNALED(code):
val = os.WTERMSIG(code)
return "killed by signal %d" % val, val
elif os.WIFSTOPPED(code):
val = os.WSTOPSIG(code)
return "stopped by signal %d" % val, val
raise ValueError("invalid exit code")
def system(cmd, errprefix=None):
"""execute a shell command that must succeed"""
rc = os.system(cmd)
if rc:
errmsg = "%s %s" % (os.path.basename(cmd.split(None, 1)[0]),
explain_exit(rc)[0])
if errprefix:
errmsg = "%s: %s" % (errprefix, errmsg)
raise CommandError(errmsg)
def rename(src, dst):
try:
os.rename(src, dst)
except:
os.unlink(dst)
os.rename(src, dst)
# Platfor specific varients
if os.name == 'nt':
nulldev = 'NUL:'
def is_exec(f, last):
return last
def set_exec(f, mode):
pass
def pconvert(path):
return path.replace("\\", "/")
def makelock(info, pathname):
ld = os.open(pathname, os.O_CREAT | os.O_WRONLY | os.O_EXCL)
os.write(ld, info)
os.close(ld)
def readlock(pathname):
return file(pathname).read()
else:
nulldev = '/dev/null'
def is_exec(f, last):
return (os.stat(f).st_mode & 0100 != 0)
def set_exec(f, mode):
s = os.stat(f).st_mode
if (s & 0100 != 0) == mode:
return
if mode:
# Turn on +x for every +r bit when making a file executable
# and obey umask.
umask = os.umask(0)
os.umask(umask)
os.chmod(f, s | (s & 0444) >> 2 & ~umask)
else:
os.chmod(f, s & 0666)
def pconvert(path):
return path
def makelock(info, pathname):
os.symlink(info, pathname)
def readlock(pathname):
return os.readlink(pathname)