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109 lines
2.5 KiB
Python
Executable file
109 lines
2.5 KiB
Python
Executable file
#! /usr/bin/env python
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# Watch line printer queue(s).
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# Intended for BSD 4.3 lpq.
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import posix
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import sys
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import time
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import string
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DEF_PRINTER = 'psc'
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DEF_DELAY = 10
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def main():
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delay = DEF_DELAY # XXX Use getopt() later
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try:
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thisuser = posix.environ['LOGNAME']
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except:
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thisuser = posix.environ['USER']
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printers = sys.argv[1:]
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if printers:
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# Strip '-P' from printer names just in case
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# the user specified it...
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for i in range(len(printers)):
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if printers[i][:2] == '-P':
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printers[i] = printers[i][2:]
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else:
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if posix.environ.has_key('PRINTER'):
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printers = [posix.environ['PRINTER']]
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else:
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printers = [DEF_PRINTER]
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#
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clearhome = posix.popen('clear', 'r').read()
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#
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while 1:
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text = clearhome
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for name in printers:
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text = text + makestatus(name, thisuser) + '\n'
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print text
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time.sleep(delay)
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def makestatus(name, thisuser):
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pipe = posix.popen('lpq -P' + name + ' 2>&1', 'r')
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lines = []
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users = {}
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aheadbytes = 0
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aheadjobs = 0
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userseen = 0
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totalbytes = 0
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totaljobs = 0
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while 1:
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line = pipe.readline()
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if not line: break
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fields = string.split(line)
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n = len(fields)
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if len(fields) >= 6 and fields[n-1] == 'bytes':
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rank = fields[0]
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user = fields[1]
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job = fields[2]
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files = fields[3:-2]
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bytes = eval(fields[n-2])
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if user == thisuser:
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userseen = 1
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elif not userseen:
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aheadbytes = aheadbytes + bytes
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aheadjobs = aheadjobs + 1
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totalbytes = totalbytes + bytes
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totaljobs = totaljobs + 1
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if users.has_key(user):
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ujobs, ubytes = users[user]
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else:
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ujobs, ubytes = 0, 0
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ujobs = ujobs + 1
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ubytes = ubytes + bytes
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users[user] = ujobs, ubytes
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else:
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if fields and fields[0] <> 'Rank':
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line = string.strip(line)
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if line == 'no entries':
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line = name + ': idle'
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elif line[-22:] == ' is ready and printing':
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line = name
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lines.append(line)
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#
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if totaljobs:
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line = '%d K' % ((totalbytes+1023)/1024)
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if totaljobs <> len(users):
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line = line + ' (%d jobs)' % totaljobs
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if len(users) == 1:
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line = line + ' for %s' % (users.keys()[0],)
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else:
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line = line + ' for %d users' % len(users)
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if userseen:
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if aheadjobs == 0:
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line = line + ' (%s first)' % thisuser
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else:
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line = line + ' (%d K before %s)' % (
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(aheadbytes+1023)/1024, thisuser)
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lines.append(line)
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#
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sts = pipe.close()
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if sts:
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lines.append('lpq exit status %r' % (sts,))
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return string.joinfields(lines, ': ')
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try:
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main()
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except KeyboardInterrupt:
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pass
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