extension development

[Stuart]

Hi,

It was unclear to me from the documentation, but what is the appropriate setup for developing an extension? Is it enough to just pip install ReviewBoard? Do I need to set up a full mock site? Do I need to create a full development setup?

Thanks,

- Stuart

[David Trowbridge]

Stuart,

While it's theoretically possible to develop against an installed package, you'll generally have much better success if you set up a dev environment. See https://www.notion.so/reviewboard/Getting-Started-da208d46de1d47d8b38e8b5ddcb3dd44 for details.

David

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[Stuart]

Hi David,

thanks for your answer. When following the setup guide ( on Linux, for rb3), I get a pip error when setting up djiblets:

ERROR: pip's legacy dependency resolver does not consider dependency conflicts when selecting packages. This behaviour is the source of the following dependency conflicts.
django-braces 1.14.0 requires Django>=1.11.0, but you'll have django 1.6.11 which is incompatible

The rest of reviewboard 3 setup seems to go fine. However, when I go to create a wheel of my extension (python setup.py bdist_wheel) I get an error that may be related:

running bdist_wheel
running build
running build_py
running build_static_files
Traceback (most recent call last):
File "setup.py", line 22, in <module>
'myExtension = myExtension.extension:myExtensionClass',
File "/home/stuart/reviewboard/src/rb3/reviewboard/reviewboard/extensions/packaging.py", line 48, in setup
setuptools_setup(**setup_kwargs)
File "/home/stuart/envs/reviewboard-3.0/lib/python2.7/site-packages/setuptools/__init__.py", line 162, in setup
return distutils.core.setup(**attrs)
File "/home/stuart/.pyenv/versions/2.7.18/lib/python2.7/distutils/core.py", line 151, in setup
dist.run_commands()
File "/home/stuart/.pyenv/versions/2.7.18/lib/python2.7/distutils/dist.py", line 953, in run_commands
self.run_command(cmd)
File "/home/stuart/.pyenv/versions/2.7.18/lib/python2.7/distutils/dist.py", line 972, in run_command
cmd_obj.run()
File "/home/stuart/envs/reviewboard-3.0/lib/python2.7/site-packages/wheel/bdist_wheel.py", line 299, in run
self.run_command('build')
File "/home/stuart/.pyenv/versions/2.7.18/lib/python2.7/distutils/cmd.py", line 326, in run_command
self.distribution.run_command(command)
File "/home/stuart/.pyenv/versions/2.7.18/lib/python2.7/distutils/dist.py", line 972, in run_command
cmd_obj.run()
File "/home/stuart/.pyenv/versions/2.7.18/lib/python2.7/distutils/command/build.py", line 127, in run
self.run_command(cmd_name)
File "/home/stuart/.pyenv/versions/2.7.18/lib/python2.7/distutils/cmd.py", line 326, in run_command
self.distribution.run_command(command)
File "/home/stuart/.pyenv/versions/2.7.18/lib/python2.7/distutils/dist.py", line 972, in run_command
cmd_obj.run()
File "/home/stuart/reviewboard/src/rb3/djblets/djblets/extensions/packaging.py", line 467, in run
self.run_command('build_static_files')
File "/home/stuart/.pyenv/versions/2.7.18/lib/python2.7/distutils/cmd.py", line 326, in run_command
self.distribution.run_command(command)
File "/home/stuart/.pyenv/versions/2.7.18/lib/python2.7/distutils/dist.py", line 972, in run_command
cmd_obj.run()
File "/home/stuart/reviewboard/src/rb3/djblets/djblets/extensions/packaging.py", line 294, in run
extension = entrypoint.load(require=False)
File "/home/stuart/envs/reviewboard-3.0/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2443, in load
return self.resolve()
File "/home/stuart/envs/reviewboard-3.0/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2449, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/home/stuart/reviewboard/extensions/myExtension/myExtension/extension.py", line 2, in <module>
from reviewboard.extensions.hooks import FileAttachmentThumbnailHook, ReviewUIHook
File "/home/stuart/reviewboard/src/rb3/reviewboard/reviewboard/extensions/hooks.py", line 49, in <module>
from reviewboard.urls import (diffviewer_url_names,
File "/home/stuart/reviewboard/src/rb3/reviewboard/reviewboard/urls.py", line 20, in <module>
extension_manager = get_extension_manager()
File "/home/stuart/reviewboard/src/rb3/reviewboard/reviewboard/extensions/base.py", line 57, in get_extension_manager
_extension_manager = ExtensionManager('reviewboard.extensions')
File "/home/stuart/reviewboard/src/rb3/djblets/djblets/extensions/manager.py", line 283, in __init__
self._gen_sync = GenerationSynchronizer('extensionmgr:%s:gen' % key)
File "/home/stuart/reviewboard/src/rb3/djblets/djblets/cache/synchronizer.py", line 62, in __init__
self._fetch_or_create_sync_gen()
File "/home/stuart/reviewboard/src/rb3/djblets/djblets/cache/synchronizer.py", line 115, in _fetch_or_create_sync_gen
if cache.add(self.cache_key, sync_gen):
File "/home/stuart/reviewboard/src/rb3/djblets/djblets/cache/forwarding_backend.py", line 99, in __getattribute__
return self.backend.__getattribute__(name)
File "/home/stuart/reviewboard/src/rb3/djblets/djblets/cache/forwarding_backend.py", line 97, in __getattribute__
return object.__getattribute__(self, name)
File "/home/stuart/reviewboard/src/rb3/djblets/djblets/cache/forwarding_backend.py", line 41, in backend
self._load_backend()
File "/home/stuart/reviewboard/src/rb3/djblets/djblets/cache/forwarding_backend.py", line 84, in _load_backend
self._backend = get_cache(self._cache_name)
File "/home/stuart/envs/reviewboard-3.0/lib/python2.7/site-packages/django/core/cache/__init__.py", line 130, in get_cache
"Could not find backend '%s': %s" % (backend, e))
django.core.cache.backends.base.InvalidCacheBackendError: Could not find backend 'forwarded_backend': Could not find backend 'forwarded_backend': forwarded_backend doesn't look like a module path

Any thoughts what the issue might be? Thanks for your help.

- Stuart