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rollup.config.js
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rollup.config.js
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import { terser } from 'rollup-plugin-terser';
import typescript from 'rollup-plugin-typescript2';
import resolve from 'rollup-plugin-node-resolve';
import { eslint } from 'rollup-plugin-eslint';
import postcss from 'rollup-plugin-postcss';
import pkg from './package.json';
import path from 'path';
import chalk from 'chalk';
const { exec } = require('child_process');
process.env.BUILD = process.env.BUILD || 'development';
const PRODUCTION = process.env.BUILD === 'production';
const BUILD_ID =
Date.now().toString(36).slice(-2) +
Math.floor(Math.random() * 0x186a0).toString(36);
const BUILD_DIRECTORY = 'dist';
const TYPESCRIPT_OPTIONS = {
// typescript: require('typescript'),
clean: PRODUCTION,
// verbosity: 3,
include: ['*.ts+(|x)', '**/*.ts+(|x)', '*.js+(|x)', '**/*.js+(|x)'],
tsconfigOverride: {
compilerOptions: {
// declaration: false,
},
},
};
const SDK_VERSION = pkg.version || 'v?.?.?';
const TERSER_OPTIONS = {
compress: {
drop_console: true,
drop_debugger: true,
ecma: 8, // Use "5" to support older browsers
module: true,
warnings: true,
passes: 4,
global_defs: {
ENV: JSON.stringify(process.env.BUILD),
SDK_VERSION: SDK_VERSION,
BUILD_ID: JSON.stringify(BUILD_ID),
GIT_VERSION: process.env.GIT_VERSION || '?.?.?',
},
},
output: {
preamble: '/* MathLive ' + SDK_VERSION + ' */',
},
};
function normalizePath(id) {
return path.relative(process.cwd(), id).split(path.sep).join('/');
}
function timestamp() {
const now = new Date();
return chalk.green(
`${now.getHours()}:${('0' + now.getMinutes()).slice(-2)}:${(
'0' + now.getSeconds()
).slice(-2)}`
);
}
// Rollup plugin to display build progress and launch server
function buildProgress() {
return {
name: 'rollup.config.js',
transform(_code, id) {
const file = normalizePath(id);
if (file.includes(':')) {
return;
}
if (
process.stdout.isTTY &&
typeof process.stdout.clearLine === 'function'
) {
process.stdout.clearLine();
process.stdout.cursorTo(0);
process.stdout.write('Building ' + chalk.grey(file));
} else {
console.log(chalk.grey(file));
}
},
buildEnd() {
if (
process.env.BUILD === 'watch' ||
process.env.BUILD === 'watching'
) {
if (
process.stdout.isTTY &&
typeof process.stdout.clearLine === 'function'
) {
process.stdout.clearLine();
process.stdout.cursorTo(0);
process.stdout.write(
timestamp() +
(process.env.BUILD === 'watching'
? ' Build updated'
: ' Build done')
);
}
} else {
if (
process.stdout.isTTY &&
typeof process.stdout.clearLine === 'function'
) {
process.stdout.clearLine();
process.stdout.cursorTo(0);
}
}
if (process.env.BUILD === 'watch') {
process.env.BUILD = 'watching';
if (
process.stdout.isTTY &&
typeof process.stdout.clearLine === 'function'
) {
process.stdout.clearLine();
process.stdout.cursorTo(0);
}
console.log(' 🚀 Launching server');
exec(
"npx http-server . -s -c-1 --cors='*' -o /examples/test-cases/index.html",
(error, stdout, stderr) => {
if (error) {
console.error(`http-server error: ${error}`);
return;
}
console.log(stdout);
console.error(stderr);
}
);
}
},
};
}
const ROLLUP = [
// MathLive main module
{
onwarn(warning, warn) {
// The use of #private class variables seem to trigger this warning.
if (warning.code === 'THIS_IS_UNDEFINED') return;
warn(warning);
},
// @todo: generate multiple flavors (i.e. no-editor, renderer only)
// by specifying multiple inputs:
// input: [ 'mathlive': 'src/mathlive.ts', 'mathlive-render': 'src/mathlive-render.ts' ]
input: 'src/mathlive.ts',
plugins: [
buildProgress(),
PRODUCTION && eslint({ exclude: ['**/*.less'] }),
postcss({
extract: false, // extract: path.resolve('dist/mathlive.css')
modules: false,
inject: false,
extensions: ['.css', '.less'],
plugins: [],
minimize: PRODUCTION,
}),
resolve(),
typescript(TYPESCRIPT_OPTIONS),
PRODUCTION && terser(TERSER_OPTIONS),
],
output: PRODUCTION
? [
// JavaScript native module
// (stricly speaking not necessary, since the UMD output is module
// compatible, but this gives us a "clean" module)
{
format: 'es',
file: `${BUILD_DIRECTORY}/mathlive.mjs`,
sourcemap: false,
},
// UMD file, suitable for import, <script> and require()
{
format: 'umd',
file: `${BUILD_DIRECTORY}/mathlive.js`,
sourcemap: false,
name: 'MathLive',
},
]
: [
{
format: 'es',
file: `${BUILD_DIRECTORY}/mathlive.mjs`,
sourcemap: true,
},
],
watch: {
clearScreen: true,
exclude: ['node_modules/**'],
},
},
];
// MathLive Vue-js adapter
// if (PRODUCTION) {
ROLLUP.push({
input: 'src/vue-mathlive.js',
plugins: [terser(TERSER_OPTIONS)],
output: {
// JavaScript native module
sourcemap: false,
file: 'dist/vue-mathlive.mjs',
format: 'es',
},
});
// }
export default ROLLUP;