author | Tero Marttila <terom@fixme.fi> |
Wed, 10 Jun 2009 23:33:28 +0300 | |
changeset 84 | 891545a38a2b |
parent 76 | e22d9f699081 |
child 87 | a7a18893730d |
permissions | -rw-r--r-- |
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""" |
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Main entry point for the command-line interface |
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""" |
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import gallery, commands, config as config_module |
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from optparse import OptionParser |
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def option_parser (command_name) : |
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""" |
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Build the OptionParser that we use |
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""" |
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# create parser using the given command |
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parser = OptionParser(prog=command_name) |
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# define options |
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parser.add_option('-G', "--gallery-path", dest='gallery_path', help="Use DIR as the Gallery path [default: CWD]", metavar='DIR', default=None) |
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parser.add_option('-R', "--read-only", dest='read_only', help="Do not attempt to modify the gallery", action="store_true", default=False) |
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return parser |
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def build_config (options) : |
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""" |
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Build a configuration object with the given options |
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""" |
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# build default config |
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config = config_module.Configuration() |
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# apply options |
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if options.gallery_path : |
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config.gallery_path = options.gallery_path |
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if options.read_only : |
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config.read_only = True |
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# XXX: load config file(s) |
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return config |
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def load_gallery (config) : |
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""" |
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Create the Gallery object that we are manipulating |
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""" |
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# read path from config |
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return gallery.Gallery(config.gallery_path, config) |
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def load_command (config, args) : |
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""" |
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Figure out what command to run and with what args |
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""" |
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# XXX: hardcoded |
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return commands.main, args, {} |
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def run_command (config, gallery, command, args, kwargs) : |
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Run the given command |
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# setup the command execution context |
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command_ctx = command.setup(config, gallery) |
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try : |
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# run it |
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return command_ctx(*args, **kwargs) |
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except : |
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command_ctx.handle_error() |
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def main (argv) : |
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""" |
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Main entry point |
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""" |
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## load commands |
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#commands = load_commands() |
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# build optparser |
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parser = option_parser(argv[0]) |
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# parse the given argv |
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options, args = parser.parse_args(argv[1:]) |
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# build our config |
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config = build_config(options) |
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# open gallery |
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gallery = load_gallery(config) |
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# figure out what command to run |
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command, args, kwargs = load_command(config, args) |
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# run the selected command |
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ret = run_command(config, gallery, command, args, kwargs) |
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if ret is None : |
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# success |
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return 0 |
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else : |
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# exit with error code |
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assert isinstance(ret, int) |
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return ret |
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