Merged module and rollup

In reference to #816

scripts/module.js

@@ -3,10 +3,13 @@
 */
 // Load modules
 const fs = require('fs-extra');
-const cp = require('child_process');
 const path = require('path');
 const chalk = require('chalk');
 const util = require('./util');
+const { rollup } = require('rollup');
+const babel = require('rollup-plugin-babel');
+const minify = require('rollup-plugin-babel-minify');
+// Check Travis builds - needs some extra work
 if (util.isTravisCI() && util.isNotTravisCronOrAPI()) {
   console.log(
     `${chalk.green('NOBUILD')} Module build terminated, not a cron job or a custom build!`
@@ -15,60 +18,92 @@ if (util.isTravisCI() && util.isNotTravisCronOrAPI()) {
 }
 // Set variables for paths
 const SNIPPETS_PATH = './snippets';
+const SNIPPETS_ARCHIVE_PATH = './snippets_archive';
 const TEMP_PATH = './temp';
 const IMPORTS = './imports.js';
+const MODULE_NAME = '_30s';
+const DIST = './dist';
 // Regex for selecting code blocks
 const codeRE = /```\s*js([\s\S]*?)```/;
-// Start the timer of the script
-console.time('Packager');
-// Load tag data from the database and snippets from their folder
-try {
-  const tagDatabase = fs.readFileSync('tag_database', 'utf8');
-  const snippets = fs.readdirSync(SNIPPETS_PATH);
-  // Create `temp` folder if it doesn't already exist.
-  if (!fs.existsSync(TEMP_PATH)) {
-    fs.mkdirSync(TEMP_PATH);
-  }
-  // Write `imports.js`
-  fs.writeFileSync(IMPORTS, '');
-  // Read all snippets and store them appropriately
-  for (const snippet of snippets) {
-    const snippetData = fs.readFileSync(path.join(SNIPPETS_PATH, snippet), 'utf8');
-    const snippetName = snippet.replace('.md', '');
-    // Check if a snippet is Node-only
-    const isNodeSnippet = tagDatabase
-      .slice(tagDatabase.indexOf(snippetName) + snippetName.length + 1)
-      .split('\n')[0]
-      .includes('node');
-    // Read `imports.js` and write the data
-    const importData = fs.readFileSync(IMPORTS, 'utf8');
-    fs.writeFileSync(
-      IMPORTS,
-      importData + `\nexport { ${snippetName} } from './temp/${snippetName}.js'`
-    );
-    // Find the code in each snippet
-    const code = snippetData.match(codeRE)[1].replace('\n', '');
-    // Store the data to be written
-    const toWrite = isNodeSnippet
-      ? `${code
+// Read snippets, build packages 
+(async () => {
+  // Start the timer of the script
+  console.time('Packager');
+  try {
+    const tagDatabase = fs.readFileSync('tag_database', 'utf8');
+    const nodeSnippets = tagDatabase.split('\n').filter(v => v.search(/:.*node/g) !== -1).map(v => v.slice(0,v.indexOf(':')));
+    const snippets = fs.readdirSync(SNIPPETS_PATH);
+    const archivedSnippets = fs.readdirSync(SNIPPETS_ARCHIVE_PATH);
+    // Create `temp` and `dist` folders if they don't already exist.
+    if (!fs.existsSync(TEMP_PATH)) fs.mkdirSync(TEMP_PATH);
+    if (!fs.existsSync(DIST)) fs.mkdirSync(DIST);
+    // Write `imports.js`
+    fs.writeFileSync(IMPORTS, '');
+
+    snippets.forEach(snippet => {
+      const snippetData = fs.readFileSync(path.join(SNIPPETS_PATH, snippet), 'utf8');
+      const snippetName = snippet.replace('.md', '');
+      const code = snippetData.match(codeRE)[1].replace('\n', '');
+      const toWrite = nodeSnippets.includes(snippetName)
+        ? `${code
           .replace(`const ${snippetName}`, `export const ${snippetName}`)
           // Prevents errors from being thrown in browser environment
           .replace('require(', 'typeof require !== "undefined" && require(')}`
-      : `export ${code}`;
-    // Write data to the proper file
-    fs.writeFileSync(`${TEMP_PATH}/${snippetName}.js`, toWrite);
+        : `export ${code}`;
+      // Write data to file and append to the imports file
+      fs.writeFileSync(`${TEMP_PATH}/${snippetName}.js`, toWrite);
+      fs.appendFileSync(IMPORTS, `\nexport { ${snippetName} } from './temp/${snippetName}.js'`);
+    })
+    
+    // Write to the proper files and start the `rollup` script
+    const es5 = babel({
+      presets: ['@babel/preset-env']
+    });
+    const min = minify({ comments: false });
+    const bundle = await rollup({ input: IMPORTS });
+    const bundleES5 = await rollup({ input: IMPORTS, plugins: [es5] });
+    const bundleES5Min = await rollup({
+      input: IMPORTS,
+      plugins: [es5, min]
+    });
+    // UMD ES2018
+    await bundle.write({
+      file: `${DIST}/${MODULE_NAME}.js`,
+      name: MODULE_NAME,
+      format: 'umd'
+    });
+
+    // ESM ES2018
+    await bundle.write({
+      file: `${DIST}/${MODULE_NAME}.esm.js`,
+      name: MODULE_NAME,
+      format: 'es'
+    });
+
+    // UMD ES5
+    await bundleES5.write({
+      file: `${DIST}/${MODULE_NAME}.es5.js`,
+      name: MODULE_NAME,
+      format: 'umd'
+    });
+
+    // UMD ES5 min
+    await bundleES5Min.write({
+      file: `${DIST}/${MODULE_NAME}.es5.min.js`,
+      name: MODULE_NAME,
+      format: 'umd'
+    });
+
+    // Clean up temporary data
+    fs.removeSync(TEMP_PATH);
+    fs.unlink(IMPORTS);
+    // Log a success message
+    console.log(`${chalk.green('SUCCESS!')} Snippet module built!`);
+    // Log the time taken
+    console.timeEnd('Packager');
+  } catch (err) {
+    // Handle errors (hopefully not!)
+    console.log(`${chalk.red('ERROR!')} During module creation: ${err}`);
+    process.exit(1);
   }
-  // Write to the proper files and start the `rollup` script
-  cp.execSync('node ./scripts/rollup.js');
-  // Clean up temporary data
-  fs.removeSync(TEMP_PATH);
-  fs.unlink(IMPORTS);
-  // Log a success message
-  console.log(`${chalk.green('SUCCESS!')} Snippet module built!`);
-  // Log the time taken
-  console.timeEnd('Packager');
-} catch (err) {
-  // Handle errors (hopefully not!)
-  console.log(`${chalk.red('ERROR!')} During module creation: ${err}`);
-  process.exit(1);
-}
+})();