barrier/hm.py

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#! /usr/bin/env python
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# synergy-plus -- mouse and keyboard sharing utility
# Copyright (C) 2009 The Synergy+ Project
#
# This package is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# found in the file COPYING that should have accompanied this file.
#
# This package is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# hm.py: 'Help Me', is a simple wrapper for all build tools.
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#
# This script was created for the Synergy+ project.
# http://code.google.com/p/synergy-plus
#
# The idea behind this is to simplify the build system,
# however, it's not a dependancy of building Synergy+.
# In other words, you don't need to use this script!
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#
# If you don't wish to run this script, simply run:
# cmake .
# make
# This will create an in-source UNIX Makefile.
import sys, os
from build import commands
from getopt import gnu_getopt
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# options used by all commands
global_options = 'g:v'
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global_options_long = ['no-prompts', 'generator=', 'verbose', 'make-gui']
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# options used by build related commands
build_options = 'dr'
build_options_long = ['debug', 'release']
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# list of valid commands as keys. the values are optarg strings, but most
# are None for now (this is mainly for extensibility)
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cmd_opt_dict = {
'about' : ['', []],
'setup' : ['', []],
'configure' : ['', []],
'build' : [build_options, build_options_long],
'clean' : [build_options, build_options_long],
'update' : ['', []],
'install' : ['', []],
'doxygen' : ['', []],
'dist' : ['', ['ftp-host=', 'ftp-user=', 'ftp-pass=', 'ftp-dir=']],
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'kill' : ['', []],
'usage' : ['', []],
'revision' : ['', []],
'reformat' : ['', []],
'open' : ['', []],
}
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# aliases to valid commands
cmd_alias_dict = {
'info' : 'about',
'help' : 'usage',
'package' : 'dist',
'docs' : 'doxygen',
'make' : 'build',
'cmake' : 'configure',
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}
def complete_command(arg):
completions = []
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for cmd, optarg in cmd_opt_dict.iteritems():
if cmd.startswith(arg):
completions.append(cmd)
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for alias, cmd in cmd_alias_dict.iteritems():
if alias.startswith(arg):
completions.append(alias)
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return completions
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def start_cmd(argv):
cmd_arg = ''
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if len(argv) > 1:
cmd_arg = argv[1]
# change common help args to help command
if cmd_arg in ('--help', '-h', '--usage', '-u', '/?'):
cmd_arg = 'usage'
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completions = complete_command(cmd_arg)
if cmd_arg and len(completions) > 0:
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if len(completions) == 1:
# get the only completion (since in this case we have 1)
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cmd = completions[0]
# build up the first part of the map (for illustrative purposes)
cmd_map = list()
if cmd_arg != cmd:
cmd_map.append(cmd_arg)
cmd_map.append(cmd)
# map an alias to the command, and build up the map
if cmd in cmd_alias_dict.keys():
alias = cmd
if cmd_arg == cmd:
cmd_map.append(alias)
cmd = cmd_alias_dict[cmd]
cmd_map.append(cmd)
# show command map to avoid confusion
if len(cmd_map) != 0:
print 'Mapping command: %s' % ' -> '.join(cmd_map)
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run_cmd(cmd, argv[2:])
return 0
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else:
print (
'Command `%s` too ambiguous, '
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'could mean any of: %s'
) % (cmd_arg, ', '.join(completions))
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else:
if len(argv) == 1:
print 'No command specified, showing usage.\n'
else:
print 'Command not recognised: %s\n' % cmd_arg
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run_cmd('usage')
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# generic error code if not returned sooner
return 1
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def run_cmd(cmd, argv = []):
verbose = False
try:
options_pair = cmd_opt_dict[cmd]
options = global_options + options_pair[0]
options_long = []
options_long.extend(global_options_long)
options_long.extend(options_pair[1])
opts, args = gnu_getopt(argv, options, options_long)
for o, a in opts:
if o in ('-v', '--verbose'):
verbose = True
# pass args and optarg data to command handler, which figures out
# how to handle the arguments
handler = commands.CommandHandler(argv, opts, args, verbose)
# use reflection to get the function pointer
cmd_func = getattr(handler, cmd)
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cmd_func()
except:
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if not verbose:
# print friendly error for users
sys.stderr.write('Error: ' + sys.exc_info()[1].__str__() + '\n')
exit(1)
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else:
# if user wants to be verbose let python do it's thing
raise
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def main(argv):
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if sys.version_info < (2, 4):
print 'Python version must be at least: 2.4'
sys.exit(1)
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try:
start_cmd(argv)
except KeyboardInterrupt:
print '\n\nUser aborted, exiting.'
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# Start the program.
main(sys.argv)