Asset improvements

[liamcmitchell]

I originally wanted to look into page load issues/improvements but got distracted on the way. I plan to keep going but thought you might want to review/merge these changes incrementally.

• Import handlebars templates via plugin (missed in Move to esbuild and update npm packages #1605)
• Remove tmp/handlebars dir, handlebars globals, handlebars script tags
• Refactor assets build script to run builds in parallel
• Remove duplicate error & warn logs
• Clean outdir on start only to avoid broken state on rebuilds
• Disable minification in watch mode
• Remove unneeded npx prefixes in package scripts

Before

$ time mix build

> build
> node build/build.js


  ../formatters/epub/dist/epub-elixir-B7F5ZCEW.css  14.3kb
  ../formatters/epub/dist/epub-erlang-KHQWEOVK.css  14.3kb
  ../formatters/epub/dist/epub-LSJCIYTM.js           499b 

⚡ Done in 53ms

  ../formatters/html/dist/html-CBA5W32Y.js                             101.0kb
  ../formatters/html/dist/html-elixir-QYVRUQZX.css                      65.4kb
  ../formatters/html/dist/html-erlang-WM4KXD7K.css                      65.3kb
...
  ../formatters/html/dist/handlebars.templates-K7URE6B4.js              32.8kb
...
  ...and 2 more output files...

⚡ Done in 150ms

  ../formatters/html/dist/handlebars.runtime-NWIB6V2M.js  19.9kb

⚡ Done in 27ms
Compiling 26 files (.ex)
Generated ex_doc app
Generating docs...
View "html" docs at "doc/index.html"
View "epub" docs at "doc/ExDoc.epub"
mix build  11.81s user 1.59s system 79% cpu 16.768 total

After

$ time mix build

> build
> node build/build.js


  ../formatters/epub/dist/epub-elixir-PZYIPPXT.css  14.3kb
  ../formatters/epub/dist/epub-erlang-NL227KN3.css  14.3kb
  ../formatters/epub/dist/epub-LSJCIYTM.js           499b 

⚡ Done in 58ms

  ../formatters/html/dist/html-DLHCPQRW.js                             149.9kb
  ../formatters/html/dist/html-elixir-RHSUA5ZT.css                      65.5kb
  ../formatters/html/dist/html-erlang-OE5MLTOC.css                      65.5kb
...
  ...and 1 more output file...

⚡ Done in 360ms
Compiling 26 files (.ex)
Generated ex_doc app
Generating docs...
View "html" docs at "doc/index.html"
View "epub" docs at "doc/ExDoc.epub"
mix build  11.74s user 1.52s system 98% cpu 13.463 total

Total JS is a little smaller and build is a little faster.

Tests

$ npm run test

> test
> karma start ./karma.conf.js --single-run

31 12 2024 09:08:10.115:INFO [esbuild]: Compiling to /private/var/folders/b2/h4z9yhkd5pv7g626sbq__hh40000gn/T/2b053bfab7e6f70242dd30f6dcdf346f-bundle.js...
31 12 2024 09:08:10.530:INFO [esbuild]: Compiling done (414ms)
31 12 2024 09:08:10.532:INFO [karma-server]: Karma v6.4.1 server started at http://localhost:9876/
31 12 2024 09:08:10.533:INFO [launcher]: Launching browsers Chrome with concurrency unlimited
31 12 2024 09:08:10.540:INFO [launcher]: Starting browser Chrome
31 12 2024 09:08:19.507:INFO [Chrome 131.0.0.0 (Mac OS 10.15.7)]: Connected on socket Mg_sTo_t5WWF8NqwAAAB with id 39082165
Chrome 131.0.0.0 (Mac OS 10.15.7): Executed 19 of 19 SUCCESS (0.105 secs / 0.033 secs)
TOTAL: 19 SUCCESS

[josevalim]

💚 💙 💜 💛 ❤️

[josevalim]

The incremental changes are definitely better, thank you!