DevTools: generate dot file with module sizes in visualizer.

third_party/WebKit/Source/devtools/scripts/visualize_deps/generate_dot.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 "use strict";
 
 const fs = require('fs');
 const path = require('path');
 
 const utils = require('../utils');
 
 const FRONTEND_PATH = path.resolve(__dirname, '..', '..', 'front_end');
 const OUT = path.resolve(__dirname, 'out', 'dependencies.dot');
 
 function main() {
   const modules = new Set();

[chenwilliam, 2017/01/11 19:03:33]

const OUT_DIR = path.resolve(__dirname, 'out');

if (!utils.isDir(OUT_DIR))
  fs.mkdirSync(OUT_DIR);

thanks :)

   const moduleToDependencyList = ['digraph dependencies {'];
+  moduleToDependencyList.push('fixedsize = true;')
   fs.readdirSync(FRONTEND_PATH).forEach(function(file) {
     const moduleJSONPath = path.join(FRONTEND_PATH, file, 'module.json');
     if (fs.statSync(path.join(FRONTEND_PATH, file)).isDirectory() &&
       utils.isFile(moduleJSONPath)) {
       const module = file;
+      if (module === 'audits2_worker')
+        return;
       modules.add(module);
       const moduleJSON = require(moduleJSONPath);
+      let moduleSize = 0;
+
+      let resources = (moduleJSON.scripts || []).concat((moduleJSON.resources || []));
+      for (let script of resources) {
+        if (fs.existsSync(path.join(FRONTEND_PATH, module, script))) {
+          console.log(path.join(FRONTEND_PATH, module, script));
+          moduleSize += fs.statSync(path.join(FRONTEND_PATH, module, script)).size;
+        }
+      }
+      moduleSize /= 200000;
+      moduleSize = Math.max(0.5, moduleSize);
+      let fontSize = Math.max(moduleSize*14, 14);
+
+      moduleToDependencyList.push(`${module} [width=${moduleSize}, height=${moduleSize} fontsize=${fontSize}];`);
+
       if (moduleJSON.dependencies) {
         for (let d of moduleJSON.dependencies) {
           moduleToDependencyList.push(`  ${module} -> ${d}`);
         }
       }
     }
   });
   moduleToDependencyList.push('}');
   const content = moduleToDependencyList.join('\n');
   fs.writeFileSync(OUT, content);
 }
 
 if (require.main === module)
   main();