/usr/share/pyshared/smart/commands/channel.py is in python-smartpm 1.4-2.
This file is owned by root:root, with mode 0o644.
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# Copyright (c) 2005 Canonical
# Copyright (c) 2004 Conectiva, Inc.
#
# Written by Gustavo Niemeyer <niemeyer@conectiva.com>
#
# This file is part of Smart Package Manager.
#
# Smart Package Manager 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.
#
# Smart Package Manager 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 Smart Package Manager; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
from smart.option import OptionParser, append_all
from smart.util.filetools import getFileDigest
from smart.const import NEVER
from smart.channel import *
from smart import *
import tempfile
import textwrap
import sys, os
USAGE=_("smart channel [options]")
DESCRIPTION=_("""
This command allows one to manipulate channels. Channels are
used as sources of information about installed and available
packages. Depending on the channel type, a different backend
is used to handle interactions with the operating system and
extraction of information from the given channel.
The following channel types are available:
%(types)s
Use --help-type <type> for more information.
""")
EXAMPLES=_("""
smart channel --help-type apt-rpm
smart channel --add mydb type=rpm-sys name="RPM Database"
smart channel --add mychannel type=apt-rpm name="Some repository" \\
baseurl=http://somewhere.com/pub/repos components=extra
smart channel --set mychannel priority=-100
smart channel --disable mychannel
smart channel --remove mychannel
smart channel --show
smart channel --show mychannel > mychannel.txt
smart channel --add ./mychannel.txt
smart channel --add http://some.url/mychannel.txt
smart channel --add /mnt/cdrom
""")
def build_types():
result = ""
typeinfo = getAllChannelInfos().items()
typeinfo.sort()
for type, info in typeinfo:
result += " %-10s - %s\n" % (type, info.name)
return result.rstrip()
def format_fields(fields):
result = []
maxkey = max([len(x[0])+(x[3] is None and 4 or 0) for x in fields])
for key, label, ftype, default, descr in fields:
if not descr:
descr = label
indent = " "*(5+maxkey)
lines = textwrap.wrap(text=descr, width=70,
initial_indent=indent,
subsequent_indent=indent)
label = lines.pop(0).strip()
if default is None:
key += " (*)"
result.append(" %s%s - %s" % (key, " "*(maxkey-len(key)), label))
for line in lines:
result.append(line)
return "\n".join(result)
def option_parser():
description = DESCRIPTION % {"types": build_types()}
parser = OptionParser(usage=USAGE,
description=description,
examples=EXAMPLES)
parser.defaults["add"] = None
parser.defaults["set"] = None
parser.defaults["remove"] = None
parser.defaults["enable"] = None
parser.defaults["disable"] = None
parser.defaults["list"] = None
parser.defaults["show"] = None
parser.defaults["yaml"] = None
parser.add_option("--add", action="callback", callback=append_all,
help=_("argument is an alias and one or more "
"key=value pairs defining a channel, or a "
"filename/url pointing to a channel description "
"in the same format used by --show, or a "
"directory path where autodetection will be "
"tried"))
parser.add_option("--set", action="callback", callback=append_all,
help=_("argument is an alias, and one or more key=value "
"pairs modifying a channel"))
parser.add_option("--remove", action="callback", callback=append_all,
help=_("arguments are channel aliases to be removed"))
parser.add_option("--remove-all", action="store_true",
help=_("remove all existent channels"))
parser.add_option("--list", action="callback", callback=append_all,
help=_("list all known channel aliases"))
parser.add_option("--show", action="callback", callback=append_all,
help=_("show channels with given aliases, or all "
"channels if no arguments were given"))
parser.add_option("--yaml", action="callback", callback=append_all,
help=_("show given channels in YAML format"))
parser.add_option("--edit", action="store_true",
help=_("edit channels in editor set by $EDITOR"))
parser.add_option("--enable", action="callback", callback=append_all,
help=_("enable channels with given aliases"))
parser.add_option("--disable", action="callback", callback=append_all,
help=_("disable channels with given aliases"))
parser.add_option("-y", "--yes", action="store_true",
help=_("execute without asking"))
parser.add_option("--help-type", action="store", metavar="TYPE",
help=_("show further information about given type"))
return parser
def parse_options(argv):
parser = option_parser()
opts, args = parser.parse_args(argv)
opts.args = args
return opts
def main(ctrl, opts):
if opts.help_type:
info = getChannelInfo(opts.help_type)
print _("Type:"), opts.help_type, "-", info.name
print
print info.description.strip()
print
print _("Fields:")
print format_fields(info.fields)
print
print _("(*) These fields are necessary for this type.")
print
sys.exit(0)
if (sysconf.getReadOnly() is True and opts.list is None and
opts.show is None and opts.yaml is None):
iface.warning(_("Can't edit channels information."))
raise Error, _("Configuration is in readonly mode.")
if opts.add is not None:
if not opts.add and opts.args == ["-"]:
newchannels = []
data = sys.stdin.read()
descriptions = parseChannelsDescription(data)
for alias in descriptions:
channel = descriptions[alias]
channel["alias"] = alias
newchannels.append(channel)
elif len(opts.add) == 1:
arg = opts.add[0]
if os.path.isdir(arg):
sysconf.set("default-localmedia", arg, soft=True)
newchannels = detectLocalChannels(arg)
elif os.path.isfile(arg):
newchannels = []
data = open(arg).read()
descriptions = parseChannelsDescription(data)
for alias in descriptions:
channel = descriptions[alias]
channel["alias"] = alias
newchannels.append(channel)
elif ":/" in arg:
succ, fail = ctrl.downloadURLs([arg], "channel description")
if fail:
raise Error, _("Unable to fetch channel description: %s")\
% fail[arg]
data = open(succ[arg]).read()
if succ[arg].startswith(sysconf.get("data-dir")):
os.unlink(succ[arg])
newchannels = []
descriptions = parseChannelsDescription(data)
for alias in descriptions:
channel = descriptions[alias]
channel["alias"] = alias
newchannels.append(channel)
else:
raise Error, _("File not found: %s") % arg
elif opts.add:
alias = opts.add.pop(0).strip()
if not alias:
raise Error, _("Channel has no alias")
channel = {}
for arg in opts.add:
if "=" not in arg:
raise Error, _("Argument '%s' has no '='") % arg
key, value = arg.split("=", 1)
channel[key.strip()] = value.strip()
channel = parseChannelData(channel)
channel["alias"] = alias
newchannels = [channel]
else:
raise Error, _("Channel information needed")
newaliases = []
for channel in newchannels:
type = channel.get("type")
if not opts.yes:
info = getChannelInfo(type)
print
for key, label, ftype, default, descr in info.fields:
if key in channel:
print "%s: %s" % (label, channel[key])
print
if opts.yes or iface.askYesNo(_("Include this channel?")):
try:
createChannel("alias", channel)
except Error, e:
raise
else:
try:
alias = channel.get("alias")
while not alias or sysconf.has(("channels", alias)):
if alias:
print _("Channel alias '%s' is already in "
"use.") % alias
alias = raw_input(_("Channel alias: ")).strip()
del channel["alias"]
sysconf.set(("channels", alias), channel)
newaliases.append(alias)
except KeyboardInterrupt:
print
removable = [alias for alias in newaliases
if sysconf.get(("channels", alias, "removable"))]
if removable:
print
print _("Updating removable channels...")
print
import update
updateopts = update.parse_options(removable)
update.main(ctrl, updateopts)
if opts.set:
if not opts.set:
raise Error, _("Invalid arguments")
alias = opts.set.pop(0)
if "=" in alias:
raise Error, _("First argument must be the channel alias")
channel = sysconf.get(("channels", alias))
if not channel:
raise Error, _("Channel with alias '%s' not found") % alias
for arg in opts.set:
if "=" not in arg:
raise Error, _("Argument '%s' has no '='") % arg
key, value = arg.split("=", 1)
key = key.strip()
if key == "type":
raise Error, _("Can't change the channel type")
if key == "alias":
raise Error, _("Can't change the channel alias")
channel[key] = value.strip()
for key in channel.keys():
if not channel[key]:
del channel[key]
createChannel(alias, channel)
sysconf.set(("channels", alias), channel)
if opts.remove:
for alias in opts.remove:
if (not sysconf.has(("channels", alias)) or opts.yes or
iface.askYesNo(_("Remove channel '%s'?") % alias)):
if not sysconf.remove(("channels", alias)):
iface.warning(_("Channel '%s' not found.") % alias)
if opts.remove_all:
if (not sysconf.get("channels") or opts.yes or
iface.askYesNo(_("Remove ALL channels?"))):
sysconf.remove("channels")
if opts.enable:
for alias in opts.enable:
if not sysconf.has(("channels", alias)):
iface.warning(_("Channel '%s' not found.") % alias)
else:
sysconf.remove(("channels", alias, "disabled"))
if opts.disable:
for alias in opts.disable:
if not sysconf.has(("channels", alias)):
iface.warning(_("Channel '%s' not found.") % alias)
else:
sysconf.set(("channels", alias, "disabled"), "yes")
if opts.list is not None:
for alias in (opts.list or sysconf.get("channels", ())):
channel = sysconf.get(("channels", alias))
if not channel:
iface.warning(_("Channel '%s' not found.") % alias)
else:
print alias
if opts.show is not None:
for alias in (opts.show or sysconf.get("channels", ())):
channel = sysconf.get(("channels", alias))
if not channel:
iface.warning(_("Channel '%s' not found.") % alias)
else:
desc = createChannelDescription(alias,
parseChannelData(channel))
if desc:
print desc
print
if opts.yaml is not None:
import yaml
yamlchannels = {}
for alias in (opts.yaml or sysconf.get("channels", ())):
channel = sysconf.get(("channels", alias))
if not channel:
iface.warning(_("Channel '%s' not found.") % alias)
else:
data = parseChannelData(channel)
yamlchannels[alias] = data
print yaml.dump(yamlchannels)
if opts.edit:
sysconf.assertWritable()
fd, name = tempfile.mkstemp(".ini")
file = os.fdopen(fd, "w")
aliases = sysconf.keys("channels")
aliases.sort()
for alias in aliases:
channel = sysconf.get(("channels", alias))
desc = createChannelDescription(alias, parseChannelData(channel))
print >>file, desc
print >>file
file.close()
editor = os.environ.get("EDITOR", "vi")
olddigest = getFileDigest(name)
while True:
os.system("%s %s" % (editor, name))
newdigest = getFileDigest(name)
if newdigest == olddigest:
break
file = open(name)
data = file.read()
file.close()
try:
newchannels = parseChannelsDescription(data)
except Error, e:
iface.error(unicode(e))
if not iface.askYesNo(_("Continue?"), True):
break
else:continue
failed = False
for alias in newchannels:
channel = newchannels[alias]
try:
createChannel(alias, channel)
except Error, e:
failed = True
iface.error(_("Error in '%s' channel: %s") %
(alias, unicode(e)))
if failed:
if not iface.askYesNo(_("Continue?"), True):
break
else:
sysconf.set("channels", newchannels)
break
os.unlink(name)
# vim:ts=4:sw=4:et
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