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# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
from mediagoblin import mg_globals
from mediagoblin.init import setup_global_and_app_config
from mediagoblin.gmg_commands import util as commands_util
from mediagoblin.tools.theme import register_themes
from mediagoblin.tools.translate import pass_to_ugettext as _
from mediagoblin.tools.common import simple_printer
from mediagoblin.tools import pluginapi
def assetlink_parser_setup(subparser):
# theme_subparsers = subparser.add_subparsers(
# dest=u"subcommand",
# help=u'Assetlink options')
# # Install command
# install_parser = theme_subparsers.add_parser(
# u'install', help=u'Install a theme to this mediagoblin instance')
# install_parser.add_argument(
# u'themefile', help=u'The theme archive to be installed')
# theme_subparsers.add_parser(
# u'assetlink',
# help=(
# u"Link the currently installed theme's assets "
# u"to the served theme asset directory"))
pass
###########
# Utilities
###########
def link_theme_assets(theme, link_dir, printer=simple_printer):
"""
Returns a list of string of text telling the user what we did
which should be printable.
"""
link_dir = link_dir.rstrip(os.path.sep)
link_parent_dir = os.path.dirname(link_dir)
if theme is None:
printer(_("Cannot link theme... no theme set\n"))
return
def _maybe_unlink_link_dir():
"""unlink link directory if it exists"""
if os.path.lexists(link_dir) \
and os.path.islink(link_dir):
os.unlink(link_dir)
return True
return
if theme.get('assets_dir') is None:
printer(_("No asset directory for this theme\n"))
if _maybe_unlink_link_dir():
printer(
_("However, old link directory symlink found; removed.\n"))
return
_maybe_unlink_link_dir()
# make the link directory parent dirs if necessary
if not os.path.lexists(link_parent_dir):
os.makedirs(link_parent_dir)
os.symlink(
theme['assets_dir'].rstrip(os.path.sep),
link_dir)
printer("Linked the theme's asset directory:\n {}\nto:\n {}\n".format(
theme['assets_dir'], link_dir))
def link_plugin_assets(plugin_static, plugins_link_dir, printer=simple_printer):
"""
Arguments:
- plugin_static: a mediagoblin.tools.staticdirect.PluginStatic instance
representing the static assets of this plugins' configuration
- plugins_link_dir: Base directory plugins are linked from
"""
# link_dir is the final directory we'll link to, a combination of
# the plugin assetlink directory and plugin_static.name
link_dir = os.path.join(
plugins_link_dir.rstrip(os.path.sep), plugin_static.name)
# make the link directory parent dirs if necessary
if not os.path.lexists(plugins_link_dir):
os.makedirs(plugins_link_dir)
# See if the link_dir already exists.
if os.path.lexists(link_dir):
# if this isn't a symlink, there's something wrong... error out.
if not os.path.islink(link_dir):
printer(_('Could not link "%s": %s exists and is not a symlink\n') % (
plugin_static.name, link_dir))
return
# if this is a symlink and the path already exists, skip it.
if os.path.realpath(link_dir) == plugin_static.file_path:
# Is this comment helpful or not?
printer(_('Skipping "%s"; already set up.\n') % (
plugin_static.name))
return
# Otherwise, it's a link that went to something else... unlink it
printer(_('Old link found for "%s"; removing.\n') % (
plugin_static.name))
os.unlink(link_dir)
os.symlink(
plugin_static.file_path.rstrip(os.path.sep),
link_dir)
printer('Linked asset directory for plugin "{}":\n {}\nto:\n {}\n'.format(
plugin_static.name,
plugin_static.file_path.rstrip(os.path.sep),
link_dir))
def assetlink(args):
"""
Link the asset directory of the currently installed theme and plugins
"""
mgoblin_app = commands_util.setup_app(args)
app_config = mg_globals.app_config
# link theme
link_theme_assets(mgoblin_app.current_theme, app_config['theme_linked_assets_dir'])
# link plugin assets
## ... probably for this we need the whole application initialized
for plugin_static in pluginapi.hook_runall("static_setup"):
link_plugin_assets(
plugin_static, app_config['plugin_linked_assets_dir'])
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