From 41ac2356f5438c5dc4d65ba056a7f620596beb53 Mon Sep 17 00:00:00 2001
From: Raymond Feng <enjoyjava@gmail.com>
Date: Mon, 24 Jun 2019 09:46:39 -0700
Subject: [PATCH] feat(cli): enable source map for npm start script

Implements https://github.com/strongloop/loopback-next/issues/3223
---
 packages/cli/generators/project/templates/package.json.ejs     | 3 ++-
 .../cli/generators/project/templates/package.plain.json.ejs    | 3 ++-
 packages/cli/test/integration/lib/project-generator.js         | 3 ++-
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/packages/cli/generators/project/templates/package.json.ejs b/packages/cli/generators/project/templates/package.json.ejs
index 0706146c0618..46823f550b35 100644
--- a/packages/cli/generators/project/templates/package.json.ejs
+++ b/packages/cli/generators/project/templates/package.json.ejs
@@ -52,7 +52,7 @@
   <% } -%>
     "migrate": "node ./dist/migrate",
     "prestart": "npm run build",
-    "start": "node .",
+    "start": "node -r source-map-support/register .",
 <% } -%>
     "prepublishOnly": "npm run test"
   },
@@ -94,6 +94,7 @@
   },
   "devDependencies": {
     "@loopback/build": "<%= project.dependencies['@loopback/build'] -%>",
+    "source-map-support": "<%= project.dependencies['source-map-support'] -%>",
     "@loopback/testlab": "<%= project.dependencies['@loopback/testlab'] -%>",
     "@types/node": "<%= project.dependencies['@types/node'] -%>",
     <% if (project.eslint) { -%>
diff --git a/packages/cli/generators/project/templates/package.plain.json.ejs b/packages/cli/generators/project/templates/package.plain.json.ejs
index 46daae77a0e3..4859e2d431bc 100644
--- a/packages/cli/generators/project/templates/package.plain.json.ejs
+++ b/packages/cli/generators/project/templates/package.plain.json.ejs
@@ -51,7 +51,7 @@
     "docker:run": "docker run -p 3000:3000 -d <%= project.name -%>",
   <% } -%>
     "migrate": "node ./dist/migrate",
-    "start": "npm run build && node .",
+    "start": "npm run build && node -r source-map-support/register .",
 <% } -%>
     "prepare": "npm run build"
   },
@@ -86,6 +86,7 @@
   },
   "devDependencies": {
     "rimraf": "<%= project.dependencies['rimraf'] -%>",
+    "source-map-support": "<%= project.dependencies['source-map-support'] -%>",
     "@loopback/testlab": "<%= project.dependencies['@loopback/testlab'] -%>",
 <% if (project.mocha) { -%>
     "@types/mocha": "<%= project.dependencies['@types/mocha'] -%>",
diff --git a/packages/cli/test/integration/lib/project-generator.js b/packages/cli/test/integration/lib/project-generator.js
index c4a93e04e643..91288c35e907 100644
--- a/packages/cli/test/integration/lib/project-generator.js
+++ b/packages/cli/test/integration/lib/project-generator.js
@@ -257,6 +257,7 @@ module.exports = function(projGenerator, props, projectType) {
           ['package.json', 'eslint-plugin-mocha'],
           ['package.json', '@typescript-eslint/eslint-plugin'],
           ['package.json', '@loopback/eslint-config'],
+          ['package.json', 'source-map-support'],
           ['.eslintrc.js', '@loopback/eslint-config'],
           ['tsconfig.json', '@loopback/build'],
         ]);
@@ -282,7 +283,7 @@ module.exports = function(projGenerator, props, projectType) {
           assert.jsonFileContent('package.json', {
             scripts: {
               prestart: 'npm run build',
-              start: 'node .',
+              start: 'node -r source-map-support/register .',
             },
           });
         }