closes#12038
Previously we were emitting changed events for _all_ settings which would
cause any listeners for those to be triggered, this ensures that listeners are
only triggered if the corresponding setting, _did_ in fact change.
closes#11999
- When the routes.yaml file changes (manually or through API) we need
to store a checksum to be able to optimize routes reloads in the future
- Added mechanism to detect differences between stored and current routes.yaml hash value
- Added routes.yaml sync on server boot
- Added routes.yaml handling in controllers
- Added routes hash synchronization method in core settings. It lives in core settings
as it needs access to model layer. To avoid coupling with the frontend settings it accepts
a function which has to resolve to a routes hash
- Added note about settings validation side-effect. It mutates input!
- Added async check for currently loaded routes hash
- Extended frontend settings loader with async loader. The default behavior of the loader is
to load settings syncronously for reasons spelled in 0ac19dcf84
To avoid blocking the eventloop added async loading method
- Refactored frontend setting loader for reusability of settings file path
- Added integrity check test for routes.yaml file
closes#12003
There are a few parts of Ghost that rely on the settings events being
emitted anytime a setting is changed, so that the data is kept in sync.
When a setting is renamed in a migration essentially what happens is
that the settings value is changed from a default value to its actual
value, but this does no emit an event.
Anything that is initialised before migrations have run that relies on
the events to keep it up to date will have stale data - e.g. the themes
i18n service.
This change ensures that when we `reinit` after migrations have been
run, we emit events for every setting to tell the rest of Ghost that it
has changed.
refs https://github.com/TryGhost/Ghost/issues/10318
- re-initialize settings cache after migrations by shutting down to clean up event listeners then and calling `init` again
- important to ensure `db.ready` event is not emitted until settings have finished re-initializing to avoid problems with background processes using the db connection which is disconnected/re-connected or being kicked off with out-of-date settings
refs #10790
refs #9528
- The settings service was designed to handle more settings then just routing, but till this day there wasn't anything else added. As routes.yaml is only being used by frontend router so conceptually it fits better to have this code in frontend, so that it doesn't have to reach out to server
- The code left in server settings is the one that interacts with the database `settings` table and only partially provides information to frontend. That part is known as 'settings cache' and will be accessed through API controllers.
refs #9866
- if I want to do a project search and looks for model usages e.g. `models.`, then I won't find these usages
- normalise how we require models -> consistency
refs #9601
### Dynamic Routing
This is the beta version of dynamic routing.
- we had a initial implementation of "channels" available in the codebase
- we have removed and moved this implementation
- there is now a centralised place for dynamic routing - server/services/routing
- each routing component is represented by a router type e.g. collections, routes, static pages, taxonomies, rss, preview of posts
- keep as much as possible logic of routing helpers, middlewares and controllers
- ensure test coverage
- connect all the things together
- yaml file + validation
- routing + routers
- url service
- sitemaps
- url access
- deeper implementation of yaml validations
- e.g. hard require slashes
- ensure routing hierarchy/order
- e.g. you enable the subscriber app
- you have a custom static page, which lives under the same slug /subscribe
- static pages are stronger than apps
- e.g. the first collection owns the post it has filtered
- a post cannot live in two collections
- ensure apps are still working and hook into the routers layer (or better said: and register in the routing service)
- put as much as possible comments to the code base for better understanding
- ensure a clean debug log
- ensure we can unmount routes
- e.g. you have a collection permalink of /:slug/ represented by {globals.permalink}
- and you change the permalink in the admin to dated permalink
- the express route get's refreshed from /:slug/ to /:year/:month/:day/:slug/
- unmount without server restart, yey
- ensure we are backwards compatible
- e.g. render home.hbs for collection index if collection route is /
- ensure you can access your configured permalink from the settings table with {globals.permalink}
### Render 503 if url service did not finish
- return 503 if the url service has not finished generating the resource urls
### Rewrite sitemaps
- we have rewritten the sitemaps "service", because the url generator does no longer happen on runtime
- we generate all urls on bootstrap
- the sitemaps service will consume created resource and router urls
- these urls will be shown on the xml pages
- we listen on url events
- we listen on router events
- we no longer have to fetch the resources, which is nice
- the urlservice pre-fetches resources and emits their urls
- the urlservice is the only component who knows which urls are valid
- i made some ES6 adaptions
- we keep the caching logic -> only regenerate xml if there is a change
- updated tests
- checked test coverage (100%)
### Re-work usage of Url utility
- replace all usages of `urlService.utils.urlFor` by `urlService.getByResourceId`
- only for resources e.g. post, author, tag
- this is important, because with dynamic routing we no longer create static urls based on the settings permalink on runtime
- adapt url utility
- adapt tests
refs https://github.com/TryGhost/Team/issues/65
- it's easier for the architecture if we read the setting files synchronously,
because the dynamic routing component is part of the express bootstrap and
the whole routing bootstrap is synchronously
- for now: we only read one file anyway
- it's for now easier to read the file synchronously, then i don't have to change
any existing express bootstrap architecture
closes#9528
These code changes introduce a YAML parser which will load and parse YAML files from the `/content/settings` directory. There are three major parts involved:
1. `ensure-settings.js`: this fn takes care that on bootstrap, the supported files are present in the `/content/settings` directory. If the files are not present, they get copied back from our default files. The default files to copy from are located in `core/server/services/settings`.
2. `loader.js`: the settings loader reads the requested `yaml` file from the disk and passes it to the yaml parser, which returns a `json` object of the file. The settings loader throws an error, if the file is not accessible, e. g. because of permission errors.
3. `yaml-parser`: gets passed a `yaml` file and returns a `json` object. If the file is not parseable, it returns a clear error that contains the information, what and where the parsing error occurred (e. g. line number and reason).
- added a `get()` fn to settings services, that returns the settings object that's asked for. e. g. `settings.get('routes').then(()...` will return the `routes` settings.
- added a `getAll()` fn to settings services, that returns all available settings in an object. The object looks like: `{routes: {routes: {}, collections: {}, resources: {}}, globals: {value: {}}`, assuming that we have to supported settings `routes` and `globals`.
Further additions:
- config `contentPath` for `settings`
- config overrides for default `yaml` files location in `/core/server/services/settings`
**Important**: These code changes are in preparation for Dynamic Routing and not yet used. The process of copying the supported `yaml` files (in this first step, the `routes.yaml` file) is not yet activated.
