#! /usr/bin/python
# Copyright (C) 2007, 2008, 2009 by Intevation GmbH
# Authors:
# Bernhard Herzog <bh@intevation.de>
#
# This program is free software under the GPL (>=v2)
# Read the file COPYING coming with the software for details.

"""List the absolute filenames of packages created by treepkg"""

import sys

import treepkgcmd
from treepkg.options import create_parser
from treepkg.report import get_packager_group

def parse_commandline():
    parser = create_parser()
    parser.set_defaults(binary=False, source=False, newest=1)
    parser.add_option("--revision",
                      help=("The revision whose files are to be listed."
                            " If not given, the latest revision is used."
                            " The value may be given as REV-RULESREV to specify"
                            " both the main source revision and the revision of"
                            " the packaging rules"))
    parser.add_option("--track",
                      help=("The package track whose files are to be listed."
                            " If not given, files of all tracks are listed."))
    parser.add_option("--source", action="store_true",
                      help=("List source packages"))
    parser.add_option("--binary", action="store_true",
                      help=("List binary packages"))
    parser.add_option("--newest", type="int",
                      help=("Number of newest revisions to list."
                            " Defaults to 1."))
    return parser.parse_args()

def parse_revision(raw_revision):
    if raw_revision is None:
        return None, None

    split_revision = raw_revision.split("-")
    if len(split_revision) > 2:
        raise ValueError("Cannot parse revision %r; too many '-' signs"
                         % raw_revision)
    revision = int(split_revision[0])
    if len(split_revision) == 1:
        rulesrev = None
    else:
        rulesrev = int(split_revision[1])

    return revision, rulesrev

def format_revision(main_rev, rules_rev):
    formatted = str(main_rev)
    if rules_rev is not None:
        formatted += "-" + str(rules_rev)
    return formatted


def list_track_packages(track, revision, num_newest, source, binary):
    main_rev, rules_rev = revision

    revisions = track.get_revisions()
    if not revisions and main_rev is None:
        return

    revisions = sorted(revisions, key=lambda r: r.status.start, reverse=True)

    candidates = []

    if main_rev is None:
        candidates = [revpkg for revpkg in revisions
                      if revpkg.status.status.finished
                         and not revpkg.status.status.error]
        candidates = candidates[:num_newest]
    else:
        for revpkg in revisions:
            if revpkg.revision == main_rev:
                if rules_rev is None or revpkg.rules_revision == rules_rev:
                    candidates = [revpkg]
                    break
        else:
            print >>sys.stderr, "No revision", format_revision(main_rev,
                                                               rules_rev)
            sys.exit(1)

    for revpkg in candidates:
        if source:
            for filename in revpkg.list_source_files():
                print filename
        if binary:
            for filename in revpkg.list_binary_files():
                print filename

def list_packages(config_file, trackname, revision, num_newest, source, binary):
    group = get_packager_group(config_file)
    tracks = group.get_package_tracks()
    if trackname is not None:
        tracks = [track for track in tracks if track.name == trackname]
        if not tracks:
            print >>sys.stderr, "no track named", trackname
            sys.exit(1)
    for track in tracks:
        list_track_packages(track, revision, num_newest, source, binary)

def main():
    options, args = parse_commandline()
    options.revision = parse_revision(options.revision)
    list_packages(options.config_file, options.track, options.revision,
                  num_newest=options.newest,
                  source=options.source, binary=options.binary)

main()