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ConsoleApplication provides methods to handle commands

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This commit is contained in:
Romain Bignon 2010-04-06 21:53:54 +02:00
commit 27af8988b1
3 changed files with 72 additions and 76 deletions
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41
weboob/frontends/boobank/scripts/boobank
View file

@ -1,5 +1,6 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# vim: ft=python et softtabstop=4 cinoptions=4 shiftwidth=4 ts=4 ai
"""
Copyright(C) 2009-2010 Romain Bignon
@ -33,44 +34,9 @@ class Boobank(ConsoleApplication):
def main(self, argv):
self.weboob.load_backends(ICapBank)
if len(argv) == 1:
print >>sys.stderr, "Usage: %s <command> [args ...]" % argv[0]
return -1
return self.command(argv[1], *argv[2:])
def getMethods(self, prefix):
services = {}
for attrname in dir(self):
if not attrname.startswith(prefix):
continue
attr = getattr(self, attrname)
if not isinstance(attr, MethodType):
continue
name = attrname[len(prefix):]
services[name] = attr
return services
def command(self, command, *args):
commands = self.getMethods('command_')
if not command in commands:
print >>sys.stderr, "No such command: %s" % command
self.command_help()
return 1
try:
return commands[command](*args)
except TypeError, e:
try:
print >>sys.stderr, "Command %s takes %s arguments" % (command, int(str(e).split(' ')[3]) - 1)
except:
print >>sys.stderr, '%s' % e
return 1
def command_help(self):
print 'Available commands are:'
print ' list List every available accounts'
print ' coming <ID> Display all future operations'
return self.process_command(*argv[1:])
@ConsoleApplication.command('List every available accounts')
def command_list(self):
print ' ID Account Balance Coming '
print '+-----------------+---------------------+--------------+-------------+'
@ -82,6 +48,7 @@ class Boobank(ConsoleApplication):
account.balance,
account.coming)
@ConsoleApplication.command('Display all future operations')
def command_coming(self, id):
found = 0
for name, backend in self.weboob.iter_backends():

44
weboob/frontends/travel/application.py
View file

@ -30,44 +30,9 @@ class Travel(ConsoleApplication):
def main(self, argv):
self.weboob.load_modules(ICapTravel)
if len(argv) == 1:
print >>sys.stderr, "Usage: %s <command> [args ...]" % argv[0]
return -1
return self.command(argv[1], *argv[2:])
def getMethods(self, prefix):
services = {}
for attrname in dir(self):
if not attrname.startswith(prefix):
continue
attr = getattr(self, attrname)
if not isinstance(attr, MethodType):
continue
name = attrname[len(prefix):]
services[name] = attr
return services
def command(self, command, *args):
commands = self.getMethods('command_')
if not command in commands:
print >>sys.stderr, "No such command: %s" % command
self.command_help()
return 1
try:
return commands[command](*args)
except TypeError, e:
try:
print >>sys.stderr, "Command %s takes %s arguments" % (command, int(str(e).split(' ')[3]) - 1)
except:
print >>sys.stderr, '%s' % e
return 1
def command_help(self):
print 'Available commands are:'
print ' stations <pattern> Search stations'
print ' departures <station> [arrival] List all departures on a special station'
return self.process_command(*argv[1:])
@ConsoleApplication.command('Search stations')
def command_stations(self, pattern):
print ".--------------------------------.---------------------------------------------."
print '| ID | Name |'
@ -81,13 +46,14 @@ class Travel(ConsoleApplication):
print "| %3d stations listed |" % count
print "'------------------------------------------------------------------------------'"
def command_departures(self, station, arrival_station=None):
@ConsoleApplication.command('List all departures on a special station')
def command_departures(self, station, arrival=None):
print ".-----.-----------.-------.-----------------------.-------.--------------------."
print "| ID | Type | Time | Arrival | Late | Info |"
print "+-----+-----------+-------+-----------------------+-------+--------------------+"
count = 0
for name, backend, in self.weboob.iter_backends():
for departure in backend.iter_station_departures(station, arrival_station):
for departure in backend.iter_station_departures(station, arrival):
print u"| %3d | %-9s | %5s | %-21s | %5s | %-18s |" % (departure.id,
departure.type,
departure.time.strftime("%H:%M"),

63
weboob/tools/application.py
View file

@ -20,6 +20,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
import sys, tty, termios, os
import re
from functools import partial
from inspect import getargspec
from weboob import Weboob
@ -102,3 +104,64 @@ class ConsoleApplication(BaseApplication):
correct = not regexp or re.match(regexp, str(line))
return line
def process_command(self, command='help', *args):
def f(x):
return x.startswith('command_' + command)
matching_commands = filter(f, dir(self))
if len(matching_commands) == 0:
sys.stderr.write("No such command: %s.\n" % command)
elif len(matching_commands) == 1:
try:
getattr(self, matching_commands[0])(*args)
except TypeError, e:
try:
sys.stderr.write("Command '%s' takes %s arguments.\n" % \
(command, int(str(e).split(' ')[3]) - 1))
except:
sys.stderr.write('%s\n' % e)
else:
sys.stderr.write("Ambiguious command %s: %s.\n" %
(command,
', '.join([s.replace('command_', '', 1)
for s in matching_commands])))
_command_help = []
def register_command(f, doc_string, register_to=_command_help):
def getArguments(func, skip=0):
"""
Get arguments of a function as a string.
skip is the number of skipped arguments.
"""
skip += 1
args, varargs, varkw, defaults = getargspec(func)
cut = len(args)
if defaults:
cut -= len(defaults)
args = ["<%s>" % a for a in args[skip:cut]] + \
["[%s]" % a for a in args[cut:]]
if varargs:
args.append("[*%s]" % varargs)
if varkw:
args.append("[**%s]" % varkw)
return " ".join(args)
command = '%s %s' % (f.func_name.replace('command_', ''),
getArguments(f))
register_to.append('%-30s %s' % (command, doc_string))
return f
def command(doc_string, f=register_command):
return partial(f, doc_string=doc_string)
@command("display this notice")
def command_help(self):
sys.stdout.write("Available commands:\n")
for f in self._command_help:
sys.stdout.write(' %s\n' % f)
register_command = staticmethod(register_command)
command = staticmethod(command)