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#! /usr/bin/python
import os, re, string, sys, getopt, signal
def version():
print "Generic Colouriser 1.1"
sys.exit()
def help():
print "Generic Colouriser 1.1"
print
print "grc [options] command [args]"
print
print "Options:"
print "-e --stderr redirect stderr. If this option is selected, "
print " do not automatically redirect stdout"
print "-s --stdout redirect stdout, even if -e is selected"
print "-c name --config=name use name as configuration file for grcat"
print "--colour=word word is one of: on, off, auto"
print
sys.exit()
def keybint(signum, frame):
try:
os.kill(pid1, signal.SIGINT)
except: # if the subprocess already died
pass
try:
optlist, args = getopt.getopt(sys.argv[1:], "sec:", ["stdout", "stderr", "config=", "colour="] )
except:
help()
if not args:
help()
stdoutf = 0
stderrf = 0
# configure file for grcat
cfile = ""
colour = 1
for i in optlist:
if i[0] in ["--stderr", "-e"]:
stderrf = 1
elif i[0] in ["--stdout", "-s"]:
stdoutf = 1
elif i[0] in ["--config", "-c"]:
cfile = i[1]
elif i[0] == "--colour":
if i[1] == "on":
colour = 1
elif i[1] == "off":
colour = 0
elif i[1] == "auto":
colour = sys.stdout.isatty()
else:
help()
stdoutff = 1
stderrff = 0
if stderrf == 1:
stdoutff = 0
stderrff = 1
if stdoutf == 1:
stdoutff = 1
conffile = None
if cfile == "":
home = []
if os.environ.has_key('HOME'):
home = [os.environ['HOME']+"/.grc/grc.conf"]
conffilenames = home + ["/etc/grc.conf"]
for i in conffilenames:
if os.path.isfile(i):
conffile = i
break
regexplist = []
if conffile:
f = open(conffile, "r")
while 1:
l = f.readline()
if l == "":
break
if l[0] == "#" or l[0] == '\012':
continue
regexp = l[:-1]
if re.search(regexp, string.join(args)):
cfile = f.readline()[:-1]
break
signal.signal(signal.SIGINT, keybint)
if cfile != "" and colour:
cho, chi = os.pipe()
pid1 = os.fork()
if pid1 == 0: # child
if stdoutff:
os.dup2(chi, 1)
if stderrff:
os.dup2(chi, 2)
os.close(cho)
os.close(chi)
os.execvp(args[0], args)
pid2 = os.fork()
if pid2 == 0: # child
os.dup2(cho, 0)
os.close(chi)
os.close(cho)
os.execvp("grcat", ["grcat", cfile])
try:
status = os.waitpid(pid1, 0)[1]
except OSError: # interrupted system call
status = None
pass # this is probably not correct
os.close(chi)
os.waitpid(pid2, 0)
os.close(cho)
sys.exit(status and os.WEXITSTATUS(status))
else:
if os.fork() == 0:
os.execvp(args[0], args)
try:
status = os.wait()[1]
except OSError: # interrupted system call
status = None
pass # this is probably not correct
sys.exit(status and os.WEXITSTATUS(status))
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