front/build: replace npm scripts with 1 script

scripts/build-frontend.js

@@ -0,0 +1,83 @@
+'use strict';
+
+const glob = require('glob');
+const fs = require('fs');
+
+function getConfig() {
+    const ini = require('ini');
+    const merge = require('merge');
+    const camelcaseKeys = require('camelcase-keys');
+
+    function parseIniFile(path) {
+        let result = ini.parse(fs.readFileSync(path, 'utf-8')
+            .replace(/#.+$/gm, '')
+            .replace(/\s+$/gm, ''));
+        Object.keys(result).map((key, _) => {
+            result[key] = camelcaseKeys(result[key]);
+        });
+        return result;
+    }
+
+    let config = parseIniFile('./config.ini.dist');
+
+    try {
+        const localConfig = parseIniFile('./config.ini');
+        config = merge.recursive(config, localConfig);
+    } catch (e) {
+        console.warn('Local config does not exist, ignoring');
+    }
+
+    delete config.basic.secret;
+    delete config.smtp;
+    delete config.database;
+    config.service.userRanks = config.service.userRanks.split(/,\s*/);
+    config.service.tagCategories = config.service.tagCategories.split(/,\s*/);
+
+    return config;
+}
+
+function bundleHtml() {
+    const minify = require('html-minifier').minify;
+    const html = fs.readFileSync('./static/html/index.htm', 'utf-8');
+    fs.writeFileSync(
+        './public/index.htm',
+        minify(html, {removeComments: true, collapseWhitespace: true}));
+    console.info('Bundled HTML');
+}
+
+function bundleCss() {
+    const minify = require('cssmin');
+    glob('static/**/*.css', {}, (er, files) => {
+        let css = '';
+        for (const file of files) {
+            css += fs.readFileSync(file);
+        }
+        fs.writeFileSync('./public/bundle.min.css', minify(css));
+        console.info('Bundled CSS');
+    });
+}
+
+function bundleJs() {
+    const browserify = require('browserify');
+    const uglifyjs = require('uglify-js');
+    glob('./static/js/**/*.js', {}, function(er, files) {
+        const outputFile = fs.createWriteStream('./public/bundle.min.js');
+        browserify().add(files).bundle().pipe(outputFile);
+        outputFile.on('finish', function() {
+            const result = uglifyjs.minify('./public/bundle.min.js');
+            fs.writeFileSync('./public/bundle.min.js', result.code);
+            console.info('Bundled JS');
+        });
+    });
+}
+
+function bundleConfig(config) {
+    fs.writeFileSync(
+        './static/js/.config.autogen.json', JSON.stringify(config));
+}
+
+const config = getConfig();
+bundleConfig(config);
+bundleHtml();
+bundleCss();
+bundleJs();