web/lib/django_extensions/management/commands/create_command.py
changeset 3 526ebd3988b0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django_extensions/management/commands/create_command.py	Wed Jan 20 12:37:40 2010 +0100
@@ -0,0 +1,78 @@
+import os
+from django.core.management.base import CommandError, AppCommand, _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))