Main documentation build broken by missing swh-web-specific setup

The swh.web module needs django initialized with a proper configuration enviroment variable before its documentation builds. This initialization is done in the swh-web specific docs config.

The main documentation build, which imports all subdocumentations, needs to also do this initialization. We probably need to have a generic pattern to do this initialization for all modules that need it.

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Migrated from T763 (view on Phabricator)

added Documentation priority:High labels

mentioned in commit 148db8a4

(Lowering priority as the problem has been worked around.)

We've got a few options:

1. keep duplicating hacks between submodules and the main docs

2. for each submodule: provide an importable "docs/extra_conf.py" file, and collect those in the main documentation config

3. add autodoc_mock_imports = ['django'] to the documentation config template to work around the current instance of this problem

4. is what we do now; 2. is the most generic solution but adds a bunch of scaffolding to the main docs repository; 3. punts the problem until the next thing we won't be able to import

added priority:Normal label and removed priority:High label

mentioned in commit cef19838

closed

mentioned in commit 58c9e4b5

Related rDDOC4be294a63ebd74ba163912d5e1f63c10b76fde4b