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build-minify.js
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143 lines (126 loc) ยท 3.92 KB
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#!/usr/bin/env node
/**
* Build script for minifying CSS and JavaScript
* This script handles:
* 1. CSS minification using CSSNano
* 2. JavaScript minification using Terser
*/
const fs = require('fs');
const path = require('path');
const cssnano = require('cssnano');
const { minify: minifyJs } = require('terser');
const postcss = require('postcss');
// Configuration
// Allow overriding the CSS input file via environment variable (used by build:pdf)
const DEFAULT_CSS_INPUT = path.join(__dirname, 'style.css');
const OUTPUT_DIR = process.env.OUTPUT_DIR || '';
function getOutputPath(filename) {
if (OUTPUT_DIR) {
// Ensure output directory exists
fs.mkdirSync(OUTPUT_DIR, { recursive: true });
return path.join(OUTPUT_DIR, filename);
}
return path.join(__dirname, filename);
}
const CONFIG = {
cssFiles: [
{
input: process.env.CSS_INPUT ? path.join(__dirname, process.env.CSS_INPUT) : DEFAULT_CSS_INPUT,
output: getOutputPath('style.min.css')
},
{
input: path.join(__dirname, 'style-web.css'),
output: getOutputPath('style-web.min.css')
}
,
{
input: path.join(__dirname, 'style-pdf.css'),
output: getOutputPath('style-pdf.min.css')
}
],
jsFiles: [
{
input: path.join(__dirname, 'server.js'),
output: getOutputPath('server.min.js')
}
]
};
/**
* Minify CSS file
*/
async function minifyCssFile(fileConfig) {
console.log(`๐จ Minifying CSS: ${fileConfig.input} โ ${fileConfig.output}`);
try {
// Check if file exists
if (!fs.existsSync(fileConfig.input)) {
console.log(`โ ๏ธ Skipping ${fileConfig.input} (file not found)`);
return true; // Don't fail build if optional file is missing
}
const css = fs.readFileSync(fileConfig.input, 'utf8');
const result = await postcss([cssnano]).process(css, { from: fileConfig.input });
fs.writeFileSync(fileConfig.output, result.css, 'utf8');
console.log(`โ
CSS minified successfully (${((css.length - result.css.length) / 1024).toFixed(2)} KiB saved)`);
return true;
} catch (error) {
console.error(`โ CSS minification failed:`, error);
return false;
}
}
/**
* Minify JavaScript file
*/
async function minifyJsFile(fileConfig) {
console.log(`๐ Minifying JS: ${fileConfig.input} โ ${fileConfig.output}`);
try {
const js = fs.readFileSync(fileConfig.input, 'utf8');
const result = await minifyJs(js, {
sourceMap: false,
compress: {
passes: 2
},
mangle: true
});
fs.writeFileSync(fileConfig.output, result.code, 'utf8');
console.log(`โ
JS minified successfully (${(js.length - result.code.length) / 1024} KiB saved)`);
return true;
} catch (error) {
console.error(`โ JS minification failed for ${fileConfig.input}:`, error);
return false;
}
}
/**
* Main build function
*/
async function build() {
console.log('๐ Starting asset minification build');
console.log('----------------------------------');
// Minify CSS files
let cssSuccessCount = 0;
for (const cssFile of CONFIG.cssFiles) {
const success = await minifyCssFile(cssFile);
if (success) cssSuccessCount++;
}
// Minify JavaScript files
let jsSuccessCount = 0;
for (const jsFile of CONFIG.jsFiles) {
const success = await minifyJsFile(jsFile);
if (success) jsSuccessCount++;
}
console.log('----------------------------------');
console.log('๐ Build Summary:');
console.log(`- CSS: ${cssSuccessCount}/${CONFIG.cssFiles.length} files successful`);
console.log(`- JS: ${jsSuccessCount}/${CONFIG.jsFiles.length} files successful`);
if (cssSuccessCount === CONFIG.cssFiles.length && jsSuccessCount === CONFIG.jsFiles.length) {
console.log('๐ All assets minified successfully!');
return true;
} else {
console.error('โ Some assets failed to minify');
return false;
}
}
// Run the build
build().then(success => {
if (!success) {
process.exit(1);
}
});