From 7d48b9d07eacdcb0f1f7a3caa1facd54c7ea90d8 Mon Sep 17 00:00:00 2001
From: zkochan <zoltan.kochan@gmail.com>
Date: Sat, 4 Mar 2017 22:05:10 +0200
Subject: [PATCH] feat: remove shrinkwrap.yaml when no deps left in
 package.json

---
 src/api/install.ts |  2 +-
 test/shrinkwrap.ts | 22 ++++++++++++++++++++++
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/src/api/install.ts b/src/api/install.ts
index 686480287c..5a5aad401d 100644
--- a/src/api/install.ts
+++ b/src/api/install.ts
@@ -148,7 +148,7 @@ async function installInContext (installType: string, packagesToInstall: Depende
     }
   }
 
-  if (pkgs && pkgs.length && newPkg) {
+  if (newPkg) {
     ctx.shrinkwrap.dependencies = ctx.shrinkwrap.dependencies || {}
 
     const deps = newPkg.dependencies || {}
diff --git a/test/shrinkwrap.ts b/test/shrinkwrap.ts
index e57ae86a37..8f718399b9 100644
--- a/test/shrinkwrap.ts
+++ b/test/shrinkwrap.ts
@@ -85,6 +85,28 @@ test('shrinkwrap not created when no deps in package.json', async t => {
   t.ok(!await project.loadShrinkwrap(), 'shrinkwrap file not created')
 })
 
+test('shrinkwrap removed when no deps in package.json', async t => {
+  const project = prepare(t)
+
+  await writeYamlFile('shrinkwrap.yaml', {
+    version: 1,
+    dependencies: {
+      'is-negative@2.1.0': 'localhost+4873/is-negative/2.1.0',
+    },
+    packages: {
+      'localhost+4873/is-negative/2.1.0': {
+        resolution: {
+          tarball: 'http://localhost:4873/is-negative/-/is-negative-2.1.0.tgz',
+        },
+      },
+    },
+  })
+
+  await install(testDefaults())
+
+  t.ok(!await project.loadShrinkwrap(), 'shrinkwrap file removed')
+})
+
 test('respects shrinkwrap.yaml for top dependencies', async t => {
   const project = prepare(t)