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Configuration for Django's Trac instance (code.djangoproject.com)

Local install

Getting a local Trac install running is a bit tricky. Here are a few tricks that can help:

  • Follow the installation instructions in djangoproject/README.rst (especially the database creation).
  • Use trac-admin ./trac-env/ permission add anonymous TRAC_ADMIN to give all permissions to the anonymous user.
  • Use the command DJANGO_SETTINGS_MODULE=tracdjangoplugin.settings TRAC_ENV=`pwd`/trac-env gunicorn tracdjangoplugin.wsgi:application --bind 0.0.0.0:9000 --workers=1 --reload to serve Trac locally.
  • If you've modified the trackhack.scss file, use sassc scss/trachacks.scss trac-env/htdocs/css/trachacks.css -s compressed to compile it to CSS.

Using Docker

  • Install Docker

  • Create a secrets.json file at the root of the repository (next to Dockerfile), containing something like:

    {
  "secret_key": "xyz",
  "db_host": "localhost",
  "db_password": "secret"
}

  • docker compose up --build

  • Follow instructions above to create/load the DB, grant permissions, create the config, etc. For example:

    docker compose up --build
export DATABASE_URL=postgres://code.djangoproject:secret@db/code.djangoproject
docker compose exec -T db psql $DATABASE_URL < ../djangoproject.com/tracdb/trac.sql
docker compose exec trac trac-admin /code/trac-env/ permission add anonymous TRAC_ADMIN

Using Podman

It may be possible to use Podman for local development to more closely simulate production. The above Docker instructions should work for Podman as well, however, be aware that podman-compose is not as well battle-tested as docker compose (e.g., it may require pruning or forcefully stopping a container before it will rebuild properly).

How to port the CSS from djangoproject.com

Assumes that code.djangoproject.com and djangoproject.com are stored in the same directory (adjust paths if needed).

  1. Copy the generated CSS: cp ../djangoproject.com/static/css/*.css trac-env/htdocs/css/
  2. Copy _utils.scss (needed by trackahacks.scss): cp ../djangoproject.com/static/scss/_utils.scss scss/
  3. Copy the javascript directory: cp -rT ../djangoproject.com/static/js trac-env/htdocs/js
  4. Compile trackhacks.scss: make compile-scss

How to recreate trac.sql after upgrading Trac

Start with a clean slate:

docker compose down
sh -c 'cd ../djangoproject.com && git checkout tracdb/trac.sql'

Bring up database and Trac via docker compose:

docker compose up --build -d
export DATABASE_URL=postgres://code.djangoproject:secret@db/code.djangoproject
docker compose exec -T db psql $DATABASE_URL < ../djangoproject.com/tracdb/trac.sql
docker compose exec trac /venv/bin/trac-admin /code/trac-env/ upgrade
docker compose exec db pg_dump --column-inserts -d $DATABASE_URL > ../djangoproject.com/tracdb/trac.sql

Note:

  • There's no need to run the trac-admin ... wiki upgrade command
  • Be careful with changes that trac-admin ... upgrade makes to trac.ini. We usually don't want them.
  • Review the diff carefully to make sure no unexpected database changes are inadvertently included.