add node modules to repo

node_modules/electron-packager/prune.js

@@ -0,0 +1,65 @@
+'use strict'
+
+const common = require('./common')
+const galactus = require('galactus')
+const fs = require('fs-extra')
+const path = require('path')
+
+const ELECTRON_MODULES = [
+  'electron',
+  'electron-prebuilt',
+  'electron-prebuilt-compile'
+]
+
+class Pruner {
+  constructor (dir) {
+    this.baseDir = common.normalizePath(dir)
+    this.galactus = new galactus.DestroyerOfModules({
+      rootDirectory: dir,
+      shouldKeepModuleTest: (module, isDevDep) => this.shouldKeepModule(module, isDevDep)
+    })
+    this.walkedTree = false
+  }
+
+  setModules (moduleMap) {
+    const modulePaths = Array.from(moduleMap.keys()).map(modulePath => `/${common.normalizePath(modulePath)}`)
+    this.modules = new Set(modulePaths)
+    this.walkedTree = true
+  }
+
+  pruneModule (name) {
+    if (this.walkedTree) {
+      return this.isProductionModule(name)
+    } else {
+      return this.galactus.collectKeptModules({ relativePaths: true })
+        .then(moduleMap => this.setModules(moduleMap))
+        .then(() => this.isProductionModule(name))
+    }
+  }
+
+  shouldKeepModule (module, isDevDep) {
+    if (isDevDep || module.depType === galactus.DepType.ROOT) {
+      return false
+    }
+
+    // Node 6 has Array.prototype.includes
+    if (ELECTRON_MODULES.indexOf(module.name) !== -1) {
+      common.warning(`Found '${module.name}' but not as a devDependency, pruning anyway`)
+      return false
+    }
+
+    return true
+  }
+
+  isProductionModule (name) {
+    return this.modules.has(name)
+  }
+}
+
+module.exports = {
+  isModule: function isModule (pathToCheck) {
+    return fs.pathExists(path.join(pathToCheck, 'package.json'))
+      .then(exists => exists && path.basename(path.dirname(pathToCheck)) === 'node_modules')
+  },
+  Pruner: Pruner
+}