26 lines
980 B
JavaScript
26 lines
980 B
JavaScript
const readFileSync = require('fs').readFileSync;
|
|
const writeFileSync = require('fs').writeFileSync;
|
|
const resolve = require('path').resolve;
|
|
const Terser = require('terser');
|
|
const GLOBAL_DEFS_FOR_TERSER = require('@angular/compiler-cli').GLOBAL_DEFS_FOR_TERSER;
|
|
|
|
const outputPath = resolve(__dirname, './core.min.js');
|
|
const pathToCoreFesm2015 = resolve(__dirname, './node_modules/@angular/core/fesm2015/core.js');
|
|
const coreFesm2015Content = readFileSync(pathToCoreFesm2015, 'utf8');
|
|
// Ensure that Terser global_defs exported by compiler-cli work.
|
|
const terserOpts = {
|
|
compress: {
|
|
module: true,
|
|
global_defs: GLOBAL_DEFS_FOR_TERSER
|
|
}
|
|
};
|
|
const result = Terser.minify(coreFesm2015Content, terserOpts);
|
|
writeFileSync(outputPath, result.code);
|
|
|
|
for (const def of Object.keys(GLOBAL_DEFS_FOR_TERSER)) {
|
|
if (result.code.includes(def)) {
|
|
throw `'${def}' should have been removed from core bundle, but was still there.\n` +
|
|
`See output at ${outputPath}.`;
|
|
}
|
|
}
|