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Diffstat (limited to 'mediagoblin/gmg_commands/assetlink.py')
| -rw-r--r-- | mediagoblin/gmg_commands/assetlink.py | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/mediagoblin/gmg_commands/assetlink.py b/mediagoblin/gmg_commands/assetlink.py new file mode 100644 index 00000000..387658ac --- /dev/null +++ b/mediagoblin/gmg_commands/assetlink.py @@ -0,0 +1,151 @@ +# 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 %s\nto:\n %s\n" % ( + 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.sep.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 "%s":\n %s\nto:\n %s\n' % ( + 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 + """ + 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']) |