25 lines
964 B
JavaScript
25 lines
964 B
JavaScript
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const readFileSync = require('fs').readFileSync;
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const writeFileSync = require('fs').writeFileSync;
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const resolve = require('path').resolve;
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const Terser = require('terser');
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const GLOBAL_DEFS_FOR_TERSER = require('@angular/compiler-cli').GLOBAL_DEFS_FOR_TERSER;
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const outputPath = resolve(__dirname, './core.min.js');
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const pathToCoreFesm5 = resolve(__dirname, './node_modules/@angular/core/fesm5/core.js');
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const coreFesm5Content = readFileSync(pathToCoreFesm5, 'utf8');
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// Ensure that Terser global_defs exported by compiler-cli work.
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const terserOpts = {
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compress: {
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module: true,
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global_defs: GLOBAL_DEFS_FOR_TERSER
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}
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};
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const result = Terser.minify(coreFesm5Content, terserOpts);
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writeFileSync(outputPath, result.code);
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for (const def of Object.keys(GLOBAL_DEFS_FOR_TERSER)) {
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if (result.code.includes(def)) {
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throw `'${def}' should have been removed from core bundle, but was still there.\n` +
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`See output at ${outputPath}.`;
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}
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}
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