gaudiComponentHelp.py

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#!/usr/bin/env python
"""
Print help messages for gaudi components
"""
from __future__ import print_function
from Gaudi import Configuration
import Configurables
import os
import sys

if __name__ == "__main__":
    from optparse import OptionParser
    parser = OptionParser(
        prog=os.path.basename(sys.argv[0]), usage="%prog [options] ")
    parser.add_option(
        "-l",
        "--list",
        action="store_true",
        dest="list",
        default=False,
        help="list all available components.")
    parser.add_option(
        "-n",
        "--name",
        action="store",
        dest="name",
        help="dump all info about component of given name.")
    parser.set_defaults(root=os.path.join("..", "python"))
    opts, args = parser.parse_args()

    if len(args) != 0:
        parser.print_help()
        sys.exit(1)

    cfgDb = Configuration.cfgDb
    if opts.list:
        print("Available components:\n%s" % (21 * "="))
        for item in sorted(cfgDb):
            print("  %s (from %s)" % (item, cfgDb[item]["lib"]))
        sys.exit()
    elif opts.name:
        name = opts.name
        if name not in cfgDb:
            print("Component %s not found." % (name))
            sys.exit()
        print("\nDumping component information for %s:\n%s" %
              (name, (35 + len(name)) * "="))
        print("  Library: %s" % (cfgDb[name]["lib"]))
        print("  Package: %s" % (cfgDb[name]["package"]))
        print("\nProperties:\n%s" % (11 * "-"))
        try:
            properties = getattr(Configurables,
                                 name)().getPropertiesWithDescription()
        except AttributeError:
            print("  Not a configurable component. No properties to show.")
            sys.exit()
        for label, (value, desc) in sorted(properties.iteritems()):
            print(("  %s\t : %s\t (%s) " % (label, value, str(desc).replace(
                "None", " no description "))).expandtabs(30))
        sys.exit()