Initial commit

portal_client/yarn_file_copy.js

@@ -0,0 +1,110 @@
+function YarnFileCopy(options = {}) {
+  
+  if (!options.assets === undefined || !Array.isArray(options.assets)) {
+    throw new Error('No assets defined or assets are not in an array');
+  };
+  
+  if (options.indexFile === undefined) {
+    throw new Error('No index file set. Please specify options.indexFile');
+  }
+  
+  options.outputDir = options.outputDir || '.';
+  options.jsDir = options.jsDir || '.';
+  options.cssDir = options.cssDir || '.';
+
+  //Defaults debug level to 'warning'
+  options.debug = options.debug || 'warning';
+
+  // Defaults debugging to info if only true is specified
+  if (options.debug === true) {
+    options.debug = 'info';
+  }
+
+  const debugLevels = ['warning', 'info', 'debug'];
+  const debugLevelIndex = debugLevels.indexOf(options.debug);
+  function log(msg, level) {
+    if (level === 0) {
+      msg = `WARNING - ${msg}`;
+    } else {
+      level = level || 1;
+    }
+    if (level <= debugLevelIndex) {
+      console.log('[YarnFileCopy] ' + msg); // eslint-disable-line no-console
+    }
+  }
+
+  function warning(msg) {
+    log(msg, 0);
+  }
+
+  function info(msg) {
+    log(msg, 1);
+  }
+
+  function debug(msg) {
+    log(msg, 2);
+  }
+
+  const apply = (compiler) => {
+    compiler.plugin('emit', (compilation, cb) => {
+      debug('starting emit');
+      const callback = () => {
+        debug('finishing emit');
+        cb();
+      };
+      var fs = require('fs'),
+      readline = require('readline'),
+      instream = fs.createReadStream(options.indexFile),
+      outstream = new(require('stream'))(),
+      rl = readline.createInterface(instream, outstream);
+
+      var content = '';
+      rl.on('line', (line) => {
+        debug(line);
+        if (line.indexOf('yarn:css') > -1) {
+          options.assets
+          .filter(asset => asset.endsWith('.css'))
+          .forEach((asset) => {
+            content += '    <link href="' + options.cssDir + '/' + asset + '" data-remove="exclude" data-build="exclude" type="text/css" rel="stylesheet">\n';
+          });
+        } else if (line.indexOf('yarn:js') > -1) {
+          options.assets
+          .filter(asset => asset.endsWith('.js'))
+          .forEach((asset) => {
+            content += '    <script src="' + options.jsDir + '/' + asset + '" data-remove="exclude" data-build="exclude"></script>\n';
+          });
+        } else {
+          content += line + '\n';
+        }
+      });
+
+      rl.on('close', (line) => {
+        var file = require('fs');
+        file.writeFile(options.outputDir + '/index.html', content, (err) =>{
+          if (err) {
+            throw err;
+          }
+          debug('new index saved');
+        });
+      });
+
+      callback();
+    });
+
+    compiler.plugin('after-emit', (compilation, cb) => {
+      debug('starting after-emit');
+      const callback = () => {
+        debug('finishing after-emit');
+        cb();
+      };
+
+      callback();
+    });
+  }
+
+  return {
+    apply
+  };
+}
+
+module.exports = YarnFileCopy;