#!/usr/bin/python

# Copyright (C) 2008 Peter Poeml / Novell Inc.  All rights reserved.
# This program is free software; it may be used, copied, modified
# and distributed under the terms of the GNU General Public Licence,
# either version 2, or (at your option) any later version.

import sys
import signal
from osc import oscerr
from urllib2 import URLError, HTTPError
try:
    # import as RPMError because the class "error" is too generic
    from rpm import error as RPMError
except:
    # if rpm-python isn't installed (we might be on a debian system):
    RPMError = None


# the good things are stolen from Matt Mackall's mercurial

def catchterm(*args):
    raise oscerr.SignalInterrupt

for name in 'SIGBREAK', 'SIGHUP', 'SIGTERM':
    num = getattr(signal, name, None)
    if num: signal.signal(num, catchterm)


def run(prg):

    try:

        try:
            if '--debugger' in sys.argv:
                import pdb
                pdb.set_trace()

            # here we actually run the program:
            return prg.main()

        except:
            # look for an option in the prg.options object and in the config dict
            # print stack trace, if desired
            if getattr(prg.options, 'traceback', None) or getattr(prg.conf, 'config', {}).get('traceback', None) or \
               getattr(prg.options, 'post_mortem', None) or getattr(prg.conf, 'config', {}).get('post_mortem', None):
                import traceback
                traceback.print_exc(file=sys.stderr)
                # we could use http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/52215

            # enter the debugger, if desired
            if getattr(prg.options, 'post_mortem', None) or getattr(prg.conf, 'config', {}).get('post_mortem', None):
                if sys.stdout.isatty() and not hasattr(sys, 'ps1'):
                    import pdb
                    pdb.post_mortem(sys.exc_info()[2])
                else:
                    print >>sys.stderr, 'sys.stdout is not a tty. Not jumping into pdb.'
            raise

    except oscerr.SignalInterrupt:
        print >>sys.stderr, 'killed!'
        return 1

    except KeyboardInterrupt:
        print >>sys.stderr, 'interrupted!'
        return 1

    except oscerr.UserAbort:
        print >>sys.stderr, 'aborted.'
        return 1

    except oscerr.APIError, e:
        print >>sys.stderr, 'BuildService API error:', e.msg
        return 1

    except oscerr.LinkExpandError, e:
        print >>sys.stderr, 'Link cannot be expanded:\n', e
        return 1

    except oscerr.UnreadableFile, e:
        print >>sys.stderr, e.msg
        return 1

    except (oscerr.NoWorkingCopy, oscerr.WorkingCopyWrongVersion), e:
        print >>sys.stderr, e
        return 1

    except HTTPError, e:
        print >>sys.stderr, 'Server returned an error:', e
        if hasattr(e, 'osc_msg'):
            print >>sys.stderr, e.osc_msg

        body = e.read()
        if getattr(prg.options, 'debug', None) or \
           getattr(prg.conf, 'config', {}).get('debug', None):
                print >>sys.stderr, e.hdrs
                print >>sys.stderr, body

        if e.code in [ 400, 403, 404, 500 ]:
            if '<summary>' in body:
                msg = body.split('<summary>')[1]
                msg = msg.split('</summary>')[0]
                print >>sys.stderr, msg

        return 1

    except URLError, e:
        print >>sys.stderr, 'Failed to reach a server:', e.reason
        return 1

    except (oscerr.ConfigError, oscerr.NoConfigfile), e:
        print >>sys.stderr, e.msg
        return 1

    except oscerr.OscIOError, e:
        print >>sys.stderr, e.msg
        if getattr(prg.options, 'debug', None) or \
           getattr(prg.conf, 'config', {}).get('debug', None):
                print >>sys.stderr, e.e
        return 1

    except (oscerr.WrongOptions, oscerr.WrongArgs), e:
        print >>sys.stderr, e
        return 2

    except oscerr.WorkingCopyOutdated, e:
        print >>sys.stderr, e
        return 1

    except (oscerr.PackageExists, oscerr.PackageMissing), e:
        print >>sys.stderr, e.msg
        return 1

    except IOError, e:
        print >>sys.stderr, e
        return 1

    except AttributeError, e:
        print >>sys.stderr, e
        return 1
    
    except RPMError, e:
        print >>sys.stderr, e
        return 1