add node modules to repo

node_modules/asar/lib/snapshot.js

@@ -0,0 +1,62 @@
+'use strict'
+const fs = process.versions.electron ? require('original-fs') : require('fs')
+const path = require('path')
+const mksnapshot = require('mksnapshot')
+const vm = require('vm')
+
+const stripBOM = function (content) {
+  if (content.charCodeAt(0) === 0xFEFF) {
+    content = content.slice(1)
+  }
+  return content
+}
+
+const wrapModuleCode = function (script) {
+  script = script.replace(/^#!.*/, '')
+  return `(function(exports, require, module, __filename, __dirname) { ${script} \n});`
+}
+
+const dumpObjectToJS = function (content) {
+  let result = 'var __ATOM_SHELL_SNAPSHOT = {\n'
+  for (const filename in content) {
+    const func = content[filename].toString()
+    result += `  '${filename}': ${func},\n`
+  }
+  result += '};\n'
+  return result
+}
+
+const createSnapshot = function (src, dest, filenames, metadata, options, callback) {
+  const content = {}
+  try {
+    src = path.resolve(src)
+    for (const filename of filenames) {
+      const file = metadata[filename]
+      if ((file.type === 'file' || file.type === 'link') && filename.substr(-3) === '.js') {
+        const script = wrapModuleCode(stripBOM(fs.readFileSync(filename, 'utf8')))
+        const relativeFilename = path.relative(src, filename)
+        try {
+          const compiled = vm.runInThisContext(script, {filename: relativeFilename})
+          content[relativeFilename] = compiled
+        } catch (error) {
+          console.error('Ignoring ' + relativeFilename + ' for ' + error.name)
+        }
+      }
+    }
+  } catch (error) {
+    return callback(error)
+  }
+
+  // run mksnapshot
+  const str = dumpObjectToJS(content)
+  const version = options.version
+  const arch = options.arch
+  const builddir = options.builddir
+  let snapshotdir = options.snapshotdir
+
+  if (typeof snapshotdir === 'undefined' || snapshotdir === null) { snapshotdir = path.dirname(dest) }
+  const target = path.resolve(snapshotdir, 'snapshot_blob.bin')
+  return mksnapshot(str, target, version, arch, builddir, callback)
+}
+
+module.exports = createSnapshot