Add option to get package.json content (#534)

* Add packageJson option to get package.json

* Wrap require statement with try catch and rename packageJson

* Revert pkgJson to packageJson

* Nits

* Remove extra blank line
* Destructure out join
* Use null instead of undefined for options.packageJson

packages/library/index.js

@@ -64,7 +64,7 @@ module.exports = (neutrino, opts = {}) => {
   }
 
   try {
-    const pkg = require(join(neutrino.options.root, 'package.json')); // eslint-disable-line global-require
+    const pkg = neutrino.options.packageJson;
     const hasSourceMap = (pkg.dependencies && 'source-map-support' in pkg.dependencies) ||
       (pkg.devDependencies && 'source-map-support' in pkg.devDependencies);
 

packages/neutrino/src/api.js

@@ -2,6 +2,7 @@ const Config = require('webpack-chain');
 const merge = require('deepmerge');
 const Future = require('fluture');
 const mitt = require('mitt');
+const { join } = require('path');
 const {
   defaultTo, is, map, omit, replace
 } = require('ramda');
@@ -50,6 +51,12 @@ class Api {
       });
     });
 
+    try {
+      options.packageJson = require(join(options.root, 'package.json')); // eslint-disable-line global-require
+    } catch (err) {
+      options.packageJson = null;
+    }
+
     Object.defineProperty(options, 'extensions', {
       enumerable: true,
       get() {

packages/node/index.js

@@ -16,13 +16,6 @@ const {
 
 const MODULES = join(__dirname, 'node_modules');
 const NEUTRINO_MODULES = join(__dirname, '../../node_modules');
-const getPackageJson = (root) => {
-  try {
-    return require(join(root, 'package.json')); // eslint-disable-line
-  } catch (err) {
-    return {};
-  }
-};
 const getOutputForEntry = pipe(
   parse,
   omit(['base']),
@@ -32,7 +25,7 @@ const getOutputForEntry = pipe(
 );
 
 module.exports = (neutrino, opts = {}) => {
-  const pkg = getPackageJson(neutrino.options.root);
+  const pkg = neutrino.options.packageJson;
   const staticDir = join(neutrino.options.source, 'static');
   const sourceMap = pathOr(
     pathOr(false, ['dependencies', 'source-map-support'], pkg),

packages/react-components/index.js

@@ -50,7 +50,7 @@ module.exports = (neutrino, options = {}) => {
         neutrino.options.output;
 
       try {
-        const pkg = require(join(neutrino.options.root, 'package.json')); // eslint-disable-line global-require
+        const pkg = neutrino.options.packageJson;
         const hasSourceMap = (pkg.dependencies && 'source-map-support' in pkg.dependencies) ||
           (pkg.devDependencies && 'source-map-support' in pkg.devDependencies);