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Build Dart

Setting up

  1. Install node
  2. Install additional node tooling (npm i -g @vercel/ncc)
  3. Install the node package dependencies (npm install)

Development

tldr: edit Dart source files and run npm run all to re-compile the action

Working on the action

Generally, to work on the action, edit the Dart source code in lib/ and re-compile the JavaScript code via npm run all. This will:

  • compile the Dart source (via dart2js) to lib/main.js; copy that file to dist/main.cjs
  • package and minify the lib/main.mjs entrypoint point and referenced node modules to dist/index.mjs

Files

  • lib/main.dart - the Dart entry-point to the action
  • lib/main.mjs - the JavaScript wrapper; this sets up some important JS interop globals and bootstraps into lib/main.dart
  • dist/index.mjs - the execution entry-point of the action

Releasing

See our publishing wiki page.