fix: generate sourcemap for minified build

Also added a tiny little acceptance test for easier testing with
aegir-test-repo

License: MIT
Signed-off-by: Victor Bjelkholm <git@victor.earth>

package.json

@@ -14,6 +14,7 @@
     "lint": "node cli.js lint",
     "test:node": "cross-env AEGIR_TEST=hello node cli.js test -t node --files 'test/**/*.spec.js'",
     "test:browser": "cross-env AEGIR_TEST=hello node cli.js test -t browser webworker --files test/browser.spec.js",
+    "test:acceptance": "./test/acceptance.sh",
     "test": "npm run test:node && npm run test:browser",
     "coverage": "cross-env AEGIR_TEST=hello node cli.js coverage -t node",
     "watch": "cross-env AEGIR_TEST=hello node cli.js test -t node --watch",

src/build/browser.js

@@ -35,23 +35,30 @@ function writeStats (ctx) {
 
 function minify (ctx, task) {
   const minifiedPath = path.join(process.cwd(), 'dist', 'index.min.js')
+  const mapPath = path.join(process.cwd(), 'dist', 'index.min.js.map')
 
   return fs.readFile(path.join(process.cwd(), 'dist', 'index.js'))
     .then((code) => {
       const result = Uglify.minify(code.toString(), {
         mangle: true,
-        compress: { unused: false }
+        compress: { unused: false },
+        sourceMap: {
+          filename: 'index.min.js',
+          url: 'index.min.js.map'
+        }
       })
       if (result.error) {
         throw result.error
       }
-      return result.code
+      return result
     })
-    .then((minified) => {
-      return fs.writeFile(
-        minifiedPath,
-        minified
-      )
+    .then(({code, map}) => {
+      return fs.writeFile(mapPath, map).then(() => {
+        return fs.writeFile(
+          minifiedPath,
+          code
+        )
+      })
     })
     .then(() => fs.stat(minifiedPath))
     .then((stats) => {

src/config/webpack/index.js

@@ -10,9 +10,23 @@ const utils = require('../../utils')
 const base = require('./base')
 const user = require('../user')()
 
-function webpackConfig (userEnv) {
-  const env = userEnv || 'production'
-  debug('Running webpack with userEnv', userEnv, 'ends up being', env)
+const devtool = {
+  'development': 'source-map',
+  'production': 'source-map',
+  'test': 'inline-source-map'
+}
+
+const getDevtool = (env) => {
+  const d = devtool[env]
+  if (!d) {
+    const jsonStr = JSON.stringify(devtool, null, 2)
+    throw new Error(`Could not find devtool for '${env}' in ${jsonStr}`)
+  }
+  return d
+}
+
+function webpackConfig (env) {
+  debug('Running webpack with env', env)
 
   return utils.getPkg().then((pkg) => {
     const libraryName = utils.getLibraryName(pkg.name)
@@ -27,14 +41,14 @@ function webpackConfig (userEnv) {
     } else {
       environment.TEST_BROWSER_JS = JSON.stringify('')
     }
-    const sourcemap = env === 'test' ? 'inline-source-map' : 'source-map'
 
+    const mode = env === 'production' ? 'production' : 'development'
     return merge(base, {
-      mode: env === 'production' ? 'production' : 'development',
+      mode: mode,
       entry: [
         entry
       ],
-      devtool: sourcemap,
+      devtool: getDevtool(env),
       output: {
         filename: path.basename(entry),
         library: libraryName,

test/acceptance.sh

@@ -0,0 +1,55 @@
+#! /usr/bin/env bash
+
+# Acceptance test for making sure aegir works as we want it to
+
+set -e
+
+# Debug
+# set -x
+
+echo "## Creating a link to current AEgir"
+npm link
+
+echo "## Creating test directory"
+TEST_DIR=$(mktemp -d)
+
+cd $TEST_DIR
+
+echo "## Cloning aegir-test-repo"
+git clone https://github.com/ipfs/aegir-test-repo
+
+cd aegir-test-repo
+
+echo "## Installing dependencies for aegir-test-repo"
+npm install
+
+echo "## Linking current AEgir into aegir-test-repo"
+npm link aegir
+
+echo "## Running build command"
+npm run build
+
+echo "## Making sure right files were created"
+
+if [ ! -d "dist" ]; then
+    echo "'dist/' directory wasn't created correctly "
+    exit 1
+fi
+
+if [ ! -e "dist/index.js" ]; then
+    echo "'dist/index.js' file wasn't created correctly "
+    exit 1
+fi
+
+if [ ! -e "dist/index.min.js" ]; then
+    echo "'dist/index.min.js' file wasn't created correctly "
+    exit 1
+fi
+
+if [ ! -e "dist/index.min.js.map" ]; then
+    echo "'dist/index.min.js.map' file wasn't created correctly "
+    exit 1
+fi
+
+echo "## Cleaning up"
+rm -rf $TEST_DIR