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author | Gianluca Montecchi <gian@grys.it> | 2009-10-02 00:08:33 +0200 |
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committer | Gianluca Montecchi <gian@grys.it> | 2009-10-02 00:08:33 +0200 |
commit | 071fef7c351c4fc23696aa6db693411b78da2edb (patch) | |
tree | 4a9950cf3c0142a6160a482fef373ee7137ad9f3 /libbe/cmdutil.py | |
parent | ed4a943875d81732bfa3127eb252c2db2e3588f4 (diff) | |
download | bugseverywhere-071fef7c351c4fc23696aa6db693411b78da2edb.tar.gz |
Fixed the merge
Diffstat (limited to 'libbe/cmdutil.py')
-rw-r--r-- | libbe/cmdutil.py | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/libbe/cmdutil.py b/libbe/cmdutil.py index e69de29..853a75a 100644 --- a/libbe/cmdutil.py +++ b/libbe/cmdutil.py @@ -0,0 +1,218 @@ +# Copyright (C) 2005-2009 Aaron Bentley and Panometrics, Inc. +# Oleg Romanyshyn <oromanyshyn@panoramicfeedback.com> +# W. Trevor King <wking@drexel.edu> +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program 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, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +import glob +import optparse +import os +from textwrap import TextWrapper +from StringIO import StringIO +import sys +import doctest + +import bugdir +import plugin +import encoding + + +class UserError(Exception): + def __init__(self, msg): + Exception.__init__(self, msg) + +class UnknownCommand(UserError): + def __init__(self, cmd): + Exception.__init__(self, "Unknown command '%s'" % cmd) + self.cmd = cmd + +class UsageError(Exception): + pass + +class GetHelp(Exception): + pass + +class GetCompletions(Exception): + def __init__(self, completions=[]): + msg = "Get allowed completions" + Exception.__init__(self, msg) + self.completions = completions + +def iter_commands(): + for name, module in plugin.iter_plugins("becommands"): + yield name.replace("_", "-"), module + +def get_command(command_name): + """Retrieves the module for a user command + + >>> try: + ... get_command("asdf") + ... except UnknownCommand, e: + ... print e + Unknown command 'asdf' + >>> repr(get_command("list")).startswith("<module 'becommands.list' from ") + True + """ + cmd = plugin.get_plugin("becommands", command_name.replace("-", "_")) + if cmd is None: + raise UnknownCommand(command_name) + return cmd + + +def execute(cmd, args): + enc = encoding.get_encoding() + cmd = get_command(cmd) + ret = cmd.execute([a.decode(enc) for a in args]) + if ret == None: + ret = 0 + return ret + +def help(cmd=None, parser=None): + if cmd != None: + return get_command(cmd).help() + else: + cmdlist = [] + for name, module in iter_commands(): + cmdlist.append((name, module.__desc__)) + longest_cmd_len = max([len(name) for name,desc in cmdlist]) + ret = ["Bugs Everywhere - Distributed bug tracking", + "", "Supported commands"] + for name, desc in cmdlist: + numExtraSpaces = longest_cmd_len-len(name) + ret.append("be %s%*s %s" % (name, numExtraSpaces, "", desc)) + ret.extend(["", "Run", " be help [command]", "for more information."]) + longhelp = "\n".join(ret) + if parser == None: + return longhelp + return parser.help_str() + "\n" + longhelp + +def completions(cmd): + parser = get_command(cmd).get_parser() + longopts = [] + for opt in parser.option_list: + longopts.append(opt.get_opt_string()) + return longopts + +def raise_get_help(option, opt, value, parser): + raise GetHelp + +def raise_get_completions(option, opt, value, parser): + print "got completion arg" + if hasattr(parser, "command") and parser.command == "be": + comps = [] + for command, module in iter_commands(): + comps.append(command) + for opt in parser.option_list: + comps.append(opt.get_opt_string()) + raise GetCompletions(comps) + raise GetCompletions(completions(sys.argv[1])) + +class CmdOptionParser(optparse.OptionParser): + def __init__(self, usage): + optparse.OptionParser.__init__(self, usage) + self.disable_interspersed_args() + self.remove_option("-h") + self.add_option("-h", "--help", action="callback", + callback=raise_get_help, help="Print a help message") + self.add_option("--complete", action="callback", + callback=raise_get_completions, + help="Print a list of available completions") + + def error(self, message): + raise UsageError(message) + + def iter_options(self): + return iter_combine([self._short_opt.iterkeys(), + self._long_opt.iterkeys()]) + + def help_str(self): + f = StringIO() + self.print_help(f) + return f.getvalue() + +def option_value_pairs(options, parser): + """ + Iterate through OptionParser (option, value) pairs. + """ + for option in [o.dest for o in parser.option_list if o.dest != None]: + value = getattr(options, option) + yield (option, value) + +def default_complete(options, args, parser, bugid_args={}): + """ + A dud complete implementation for becommands so that the + --complete argument doesn't cause any problems. Use this + until you've set up a command-specific complete function. + + bugid_args is an optional dict where the keys are positional + arguments taking bug shortnames and the values are functions for + filtering, since that's a common enough operation. + e.g. for "be open [options] BUGID" + bugid_args = {0: lambda bug : bug.active == False} + A positional argument of -1 specifies all remaining arguments + (e.g in the case of "be show BUGID BUGID ..."). + """ + for option,value in option_value_pairs(options, parser): + if value == "--complete": + raise GetCompletions() + if len(bugid_args.keys()) > 0: + max_pos_arg = max(bugid_args.keys()) + else: + max_pos_arg = -1 + for pos,value in enumerate(args): + if value == "--complete": + filter = None + if pos in bugid_args: + filter = bugid_args[pos] + if pos > max_pos_arg and -1 in bugid_args: + filter = bugid_args[-1] + if filter != None: + bugshortnames = [] + try: + bd = bugdir.BugDir(from_disk=True, + manipulate_encodings=False) + bd.load_all_bugs() + bugs = [bug for bug in bd if filter(bug) == True] + bugshortnames = [bd.bug_shortname(bug) for bug in bugs] + except bugdir.NoBugDir: + pass + raise GetCompletions(bugshortnames) + raise GetCompletions() + +def complete_path(path): + """List possible path completions for path.""" + comps = glob.glob(path+"*") + glob.glob(path+"/*") + if len(comps) == 1 and os.path.isdir(comps[0]): + comps.extend(glob.glob(comps[0]+"/*")) + return comps + +def underlined(instring): + """Produces a version of a string that is underlined with '=' + + >>> underlined("Underlined String") + 'Underlined String\\n=================' + """ + + return "%s\n%s" % (instring, "="*len(instring)) + + +def _test(): + import doctest + import sys + doctest.testmod() + +if __name__ == "__main__": + _test() + +suite = doctest.DocTestSuite() |