ref https://linear.app/tryghost/issue/DEV-32/remove-migratejs-script
- we want to switch to using this code path instead of our separate
migrate.js script on Pro
- the main things we're missing are metrics + monitoring for when things
go wrong, so this adds that to the DatabaseStateManager
- this allows us to eventually delete the script without losing
functionality
- the code kept an array of IDs, and would check new entries against the
values of this array
- this algorithm is O(n^2) and became quite slow when the site had a lot
of redirects
- we can do away with this entirely, and just compute the keys of the
redirects to get the IDs
- this speeds up loading redirects by 3x or so
- this will prevent the `ready` variable from being set to true if there
is an error with minification, as we have not correctly generated the
assets yet
- we don't need any of these fields to do URL service calculations, so
we can exclude them from being fetched, which improves performance of
URL service init
- ultimately, we should switch this to an include list to make this more
explicit
- this code is on the hotpath for the URL service and has shown to be
slow for sites with a lot of posts
- this is due to the overhead of the lodash functions we use here
- we can take advantage of how JS executes if-statements and move the
variable into the if-statement, which lazy evaluates it (for the URL
service, this branch is not hit, so it's a big win)
- this cuts about 2% from CPU time
- this code is a hotpath for the URL service and has shown to be slow
for sites with a lot of posts
- this is because of the overhead of lodash
- we can just do away with lodash and use native JS, which has
a negligible performance cost
- this cuts about 5% CPU time during boot of large sites
- moment calls are unbelievably heavy and we should do away with it
where possible
- this code doesn't need moment and we can just use native JS Date here
- this saves about 5% CPU time when booting sites with a lot of posts
- this code has shown to be chronically slow, due to the `Object.assign`
- we don't really need this, as we can just use a normal assign in this
case
- this cuts 15% CPU from boot time for sites with a lot of resources
(posts)
- it turns out we it the false case of this if-statement quite a lot,
and _generateUrl is heavy enough that we should try and do it less
- by moving it into the if-statement, we cut 4% CPU time from boot on
heavy sites
- lodash adds non-negligible runtime to this loop, so we can just
replace it with native JS and cut 3% CPU time from boot for sites
with a large number of posts
- we have to deserialize the values from the DB to turn them into moment + boolean values
- the use of lodash adds unnecessary overhead to the function, and writing it in native JS
is a low faster
- also fixes the naming of the functions to make it clearer in flamegraphs
no issue
- config helpers are required early during boot and it requiring lodash added some unnecessary require+compile time
- switched to using an inlined escapeRegExp function in place of requiring lodash
no issue
- config utils are required early during boot and it requiring lodash added some unnecessary require+compile time
- switched to using native JS for the few lodash methods we used
no issue
- bumped gscan version to provide `skipChecks` flag to `check` function
- added `optimization:themes:skipBootChecks` config flag defaulting to `false` to maintain current behaviour
- updated theme service initialization to use `skipChecks: true` when the config flag is set
- we only want to skip the checks during boot in specific cases to improve performance, they are still useful for general development and any production use-cases where themes get edited directly on the server
- updated our theme validate module to accept and pass through `skipChecks` option
- switched the `isZip` positional argument of `validate.check()` to an options object property to make usage cleaner
- right now, we minify the assets on boot. This is wasteful because they're not even needed
- this commit implements a change which lazy-minifies these assets and
allows for cache invalidation when the theme changes
- it also introduces some middleware that each asset calls to ensure
that the assets are minified before serving
no issue
- avoid accessing `mobiledocLib.mobiledocHtmlRenderer` directly to access the `render()` method in favor of using `mobiledocLib.render()` instead
- standardising on this pattern should help avoid accidentally requiring the full library before we have a need to render
no issue
- the lazy-loading `mobiledocHtmlRenderer` getter was being accessed by the email renderer that gets initialized during boot
- switched the pattern to match our lexical lib where we have a `render()` method that doesn't load the renderer until it's actually needed
- we don't need to require the entire package and this costs 5% of our
boot time
- this commit bumps NQL to the latest version, which fixes the requires
to help with treeshaking and loading less code
- the return type of `getLastModifiedForDatum` is a moment object, and
we're just wrapping it again in another moment call
- moment is very heavy so we shouldn't do it unnecessarily
- this makes boot time 1% quicker of heavy sites
no issue
- Following commit #21190, the following updates were made:
- **Filled missing translations and made style corrections to existing
translations to improve clarity and consistency.**
- Total new translations added: 29 entries filled.
- Existing translations improved: 7 entries updated for better
consistency and clarity.
