NewsBlur/utils/django_extensions/management/commands/create_app.py
2009-07-22 04:24:24 +00:00

72 lines
3.2 KiB
Python

import os
import re
import django_extensions
from django.core.management.base import CommandError, LabelCommand, _make_writeable
from optparse import make_option
class Command(LabelCommand):
option_list = LabelCommand.option_list + (
make_option('--template', '-t', action='store', dest='app_template',
help='The path to the app template'),
make_option('--parent_path', '-p', action='store', dest='parent_path',
help='The parent path of the app to be created'),
)
help = ("Creates a Django application directory structure based on the specified template directory.")
args = "[appname]"
label = 'application name'
requires_model_validation = False
can_import_settings = True
def handle_label(self, label, **options):
project_dir = os.getcwd()
project_name = os.path.split(project_dir)[-1]
app_name =label
app_template = options.get('app_template') or os.path.join(django_extensions.__path__[0], 'conf', 'app_template')
app_dir = os.path.join(options.get('parent_path') or project_dir, app_name)
if not os.path.exists(app_template):
raise CommandError("The template path, %r, does not exist." % app_template)
if not re.search(r'^\w+$', label):
raise CommandError("%r is not a valid application name. Please use only numbers, letters and underscores." % label)
try:
os.makedirs(app_dir)
except OSError, e:
raise CommandError(e)
copy_template(app_template, app_dir, project_name, app_name)
def copy_template(app_template, copy_to, project_name, app_name):
"""copies the specified template directory to the copy_to location"""
import shutil
# walks the template structure and copies it
for d, subdirs, files in os.walk(app_template):
relative_dir = d[len(app_template)+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('app_name', app_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('{{ app_name }}', app_name).replace('{{ project_name }}', project_name))
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))