forked from django-extensions/django-extensions
/
create_command.py
81 lines (70 loc) · 3.52 KB
/
create_command.py
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import os
from django.core.management.base import CommandError, AppCommand
from django_extensions.management.utils import _make_writeable
from optparse import make_option
class Command(AppCommand):
option_list = AppCommand.option_list + (
make_option('--name', '-n', action='store', dest='command_name', default='sample',
help='The name to use for the management command'),
make_option('--base', '-b', action='store', dest='base_command', default='Base',
help='The base class used for implementation of this command. Should be one of Base, App, Label, or NoArgs'),
)
help = ("Creates a Django management command directory structure for the given app name"
" in the current directory.")
args = "[appname]"
label = 'application name'
requires_model_validation = False
# Can't import settings during this command, because they haven't
# necessarily been created.
can_import_settings = True
def handle_app(self, app, **options):
directory = os.getcwd()
app_name = app.__name__.split('.')[-2]
project_dir = os.path.join(directory, app_name)
if not os.path.exists(project_dir):
try:
os.mkdir(project_dir)
except OSError, e:
raise CommandError(e)
copy_template('command_template', project_dir, options.get('command_name'), '%sCommand' % options.get('base_command'))
def copy_template(template_name, copy_to, command_name, base_command):
"""copies the specified template directory to the copy_to location"""
import django_extensions
import re
import shutil
template_dir = os.path.join(django_extensions.__path__[0], 'conf', template_name)
handle_method = "handle(self, *args, **options)"
if base_command == 'AppCommand':
handle_method = "handle_app(self, app, **options)"
elif base_command == 'LabelCommand':
handle_method = "handle_label(self, label, **options)"
elif base_command == 'NoArgsCommand':
handle_method = "handle_noargs(self, **options)"
# walks the template structure and copies it
for d, subdirs, files in os.walk(template_dir):
relative_dir = d[len(template_dir) + 1:]
if relative_dir and not os.path.exists(os.path.join(copy_to, relative_dir)):
os.mkdir(os.path.join(copy_to, relative_dir))
for i, subdir in enumerate(subdirs):
if subdir.startswith('.'):
del subdirs[i]
for f in files:
if f.endswith('.pyc') or f.startswith('.DS_Store'):
continue
path_old = os.path.join(d, f)
path_new = os.path.join(copy_to, relative_dir, f.replace('sample', command_name))
if os.path.exists(path_new):
path_new = os.path.join(copy_to, relative_dir, f)
if os.path.exists(path_new):
continue
path_new = path_new.rstrip(".tmpl")
fp_old = open(path_old, 'r')
fp_new = open(path_new, 'w')
fp_new.write(fp_old.read().replace('{{ command_name }}', command_name).replace('{{ base_command }}', base_command).replace('{{ handle_method }}', handle_method))
fp_old.close()
fp_new.close()
try:
shutil.copymode(path_old, path_new)
_make_writeable(path_new)
except OSError:
sys.stderr.write(style.NOTICE("Notice: Couldn't set permission bits on %s. You're probably using an uncommon filesystem setup. No problem.\n" % path_new))