Move jobs to separate file w less deps, reduce worker mem consumption.

lib/fs_utils/generate.js

@@ -12,6 +12,7 @@ const flatten = helpers.flatten;
 const promiseReduce = helpers.promiseReduce;
 const formatOptimizerError = helpers.formatOptimizerError;
 const processJob = require('../workers').processJob;
+const OptimizeJob = require('../workers/jobs').OptimizeJob;
 const hmr = require('../utils/hmr'); // isEnabled, generate
 const BrunchError = require('../utils/error');
 
@@ -125,36 +126,6 @@ const concat = (files, path, definitionFn, autoRequire, config) => {
   return root.toStringWithSourceMap({file: path});
 };
 
-const OptimizeJob = {
-  path: 'OptimizeJob',
-
-  serialize(hash) {
-    const optimizer = hash.optimizer.brunchPluginName;
-    const params = hash.params;
-    return {optimizer, params: {data: params.data, map: params.map, path: params.path}};
-  },
-
-  deserialize(ctx, hash) {
-    const optimizer = ctx.plugins.optimizers.find(p => p.brunchPluginName === hash.optimizer);
-
-    const deserializeSourceMap = serializedMap => {
-      return SourceMapGenerator.fromSourceMap(new SourceMapConsumer(serializedMap));
-    };
-
-    const params = hash.params;
-    params.map = deserializeSourceMap(params.map);
-
-    return {optimizer, params};
-  },
-
-  work(hash) {
-    const optimizer = hash.optimizer;
-    const file = hash.params;
-
-    return optimizer.optimize(file);
-  },
-};
-
 const prepareSourceMap = (optimizedMap, sourceFiles) => {
   if (optimizedMap == null) return;
   const map = SourceMapGenerator.fromSourceMap(new SourceMapConsumer(optimizedMap));

lib/workers/job-processor.js

@@ -15,9 +15,7 @@ loadConfigWorker(false, options).then(_cfg => {
   });
 });
 
-const OptimizeJob = require('../fs_utils/generate').OptimizeJob;
-
-const jobs = {OptimizeJob};
+const jobs = require('./jobs');
 
 process.on('message', msg => {
   const type = msg.type;

lib/workers/jobs.js

@@ -0,0 +1,36 @@
+const smap = require('source-map');
+const SourceMapConsumer = smap.SourceMapConsumer;
+const SourceMapGenerator = smap.SourceMapGenerator;
+const SourceNode = smap.SourceNode;
+
+const OptimizeJob = {
+  path: 'OptimizeJob',
+
+  serialize(hash) {
+    const optimizer = hash.optimizer.brunchPluginName;
+    const params = hash.params;
+    return {optimizer, params: {data: params.data, map: params.map, path: params.path}};
+  },
+
+  deserialize(ctx, hash) {
+    const optimizer = ctx.plugins.optimizers.find(p => p.brunchPluginName === hash.optimizer);
+
+    const deserializeSourceMap = serializedMap => {
+      return SourceMapGenerator.fromSourceMap(new SourceMapConsumer(serializedMap));
+    };
+
+    const params = hash.params;
+    params.map = deserializeSourceMap(params.map);
+
+    return {optimizer, params};
+  },
+
+  work(hash) {
+    const optimizer = hash.optimizer;
+    const file = hash.params;
+
+    return optimizer.optimize(file);
+  },
+};
+
+exports.OptimizeJob = OptimizeJob;