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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 code
from mediagoblin import mg_globals
from mediagoblin.gmg_commands import util as commands_util
from mediagoblin.tools.transition import DISABLE_GLOBALS
def shell_parser_setup(subparser):
subparser.add_argument(
'--ipython', help='Use ipython',
action="store_true")
if DISABLE_GLOBALS:
SHELL_BANNER = (
"GNU MediaGoblin shell!\n"
"----------------------\n"
"Available vars:\n"
" - app: instantiated mediagoblin application\n"
" - db: database session\n"
" - ctx: context object\n")
else:
SHELL_BANNER = (
"GNU MediaGoblin shell!\n"
"----------------------\n"
"Available vars:\n"
" - app: instantiated mediagoblin application\n"
" - mg_globals: mediagoblin.globals\n"
" - db: database instance\n"
" - ctx: context object\n")
def py_shell(**user_namespace):
"""
Run a shell using normal python shell.
"""
code.interact(
banner=SHELL_BANNER,
local=user_namespace)
def ipython_shell(**user_namespace):
"""
Run a shell for the user using ipython. Return False if there is no IPython
"""
try:
from IPython import embed
except:
return False
embed(
banner1=SHELL_BANNER,
user_ns=user_namespace)
return True
def shell(args):
"""
Setup a shell for the user either a normal Python shell or an IPython one
"""
app = commands_util.setup_app(args)
def run_shell(db, ctx):
user_namespace = {
'mg_globals': mg_globals,
'app': app,
'db': db,
"ctx": ctx}
if args.ipython:
ipython_shell(**user_namespace)
else:
# Try ipython_shell first and fall back if not available
if not ipython_shell(**user_namespace):
py_shell(**user_namespace)
with app.gen_context() as ctx:
db = ctx.db
run_shell(db, ctx)
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