Little webpack plugin for digging out some time info

build-step-time-webpack-plugin.js

// Drop this in as the first plugin in a webpack config
{
  apply: function(compiler) {
    var start;
    compiler.plugin(['watch-run', 'run'], function(compiler, cb) {
      start = Date.now();
      cb();
    });
    compiler.plugin('make', function(compilation, cb) {
      console.log('pre-make', Date.now() - start);
      start = Date.now();
      compilation.plugin('seal', function() {
        console.log('make', Date.now() - start);
        start = Date.now();
      });
      compilation.plugin('optimize-tree', function(chunks, modules, cb) {
        console.log('pre optimize-tree', Date.now() - start);
        start = Date.now();
        cb();
      });
      compilation.plugin('after-optimize-tree', function() {
        console.log('optimize-tree', Date.now() - start);
        start = Date.now();
      });
      compilation.plugin('after-optimize-assets', function() {
        console.log('post optimize-tree', Date.now() - start);
        start = Date.now();
      });
      cb();
    });
    compiler.plugin('emit', function(compilation, cb) {
      console.log('after-compile', Date.now() - start);
      start = Date.now();
      cb();
    })
    compiler.plugin('done', function() {
      console.log('emit', Date.now() - start);
    });
  },
},