Initial commit 🎉

fbshipit-source-id: b6fc29740c6875d2e78953b8a7123890a67930f2
Co-authored-by: Sebastian McKenzie <sebmck@fb.com>
Co-authored-by: John Knox <jknox@fb.com>
Co-authored-by: Emil Sjölander <emilsj@fb.com>
Co-authored-by: Pritesh Nandgaonkar <prit91@fb.com>

static/transforms/index.js

@@ -0,0 +1,64 @@
+/**
+ * Copyright 2018-present Facebook.
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ * @format
+ */
+
+const generate = require('@babel/generator').default;
+const babylon = require('babylon');
+const babel = require('@babel/core');
+const metro = require('metro');
+
+exports.transform = function({filename, options, src}) {
+  const presets = [require('../node_modules/babel-preset-react')];
+  const isSonarPlugin = !__dirname.startsWith(options.projectRoot);
+
+  let ast = babylon.parse(src, {
+    filename,
+    plugins: ['jsx', 'flow', 'classProperties', 'objectRestSpread'],
+    sourceType: 'module',
+  });
+
+  // run babel
+  const plugins = [
+    require('../node_modules/babel-plugin-transform-object-rest-spread'),
+    require('../node_modules/babel-plugin-transform-class-properties'),
+    require('../node_modules/babel-plugin-transform-flow-strip-types'),
+    require('./electron-requires.js'),
+    require('./fb-stubs.js'),
+    require('./dynamic-requires.js'),
+  ];
+  if (isSonarPlugin) {
+    plugins.push(require('./sonar-requires.js'));
+  } else {
+    plugins.push(require('./import-react.js'));
+  }
+  plugins.unshift(require('babel-plugin-transform-es2015-modules-commonjs'));
+
+  ast = babel.transformFromAst(ast, src, {
+    babelrc: !filename.includes('node_modules'),
+    code: false,
+    comments: false,
+    compact: false,
+    filename,
+    plugins,
+    presets,
+    sourceMaps: true,
+  }).ast;
+  const result = generate(
+    ast,
+    {
+      filename,
+      sourceFileName: filename,
+      sourceMaps: true,
+    },
+    src,
+  );
+  return {
+    ast,
+    code: result.code,
+    filename,
+    map: result.rawMappings.map(metro.sourceMaps.compactMapping),
+  };
+};