The discourse base image already contains a postgres installation, so pulling a separate postgres image is a little wasteful. Using the copy of Postgres in the discourse image saves about 20 seconds on every GitHub actions run.
This commit sets up Postgres with a few performance-improving flags, which we were already using for the `rake docker:test` task (used on our internal CI system).
A cached database (and its uploads) will only be used if the current run has exactly the same set of migration files. Otherwise, the database will be migrated from scratch
This saves approximately 75s on the core backend specs and 45s on other runs.
`bin/rake annotate` is an alias of `bin/annotate --models`
`bin/rake annotate:clean` generates annotations by using a temporary, freshly migrated database. This should help us to produce more consistent annotations, even if development databases have been polluted by plugin migrations.
A GitHub actions task is also added which generates annotations on a clean database, and raises an error if they differ from the committed annotations.
Includes:
* DEV: Remove external plugin linting (that's covered by CI in their repositories)
* DEV: Move lint stages to a separate workflow (partial de-`if`-ication of workflows)
* DEV: Run CI on `main` branch too
* DEV: Update postgres to 13
* DEV: Update redis to 6.x
Other changes:
* DEV: Remove matrix.os
* DEV: Remove env.BUILD_TYPE
* DEV: Remove env.TARGET
* DEV: Rename `build_types` config option to `build_type`
* DEV: Lowercase `target` and `build_type` names
* DEV: Rename `ci` to `tests`
* DEV: Rename `lint` to `linting`
* DEV: Lower the wizard qunit timeout (30 min -> 10)
* DEV: Ruby version is no longer configurable
* DEV: Run plugin tests only in the `plugins` target
* DEV: Use binstubs where applicable
* DEV: We don't open PRs to `tests-passed`