From 0ffa1e72d0a7f3c64670fa1ab44f20885bbbaaf7 Mon Sep 17 00:00:00 2001
From: Lovell Fuller <github@lovell.info>
Date: Wed, 6 Jan 2016 16:31:01 +0000
Subject: [PATCH] Attempt to remove temp file after install #331

---
 binding.js        | 16 ++++++++++++----
 docs/changelog.md |  4 ++++
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/binding.js b/binding.js
index fb97c642..93eb9e37 100644
--- a/binding.js
+++ b/binding.js
@@ -25,7 +25,7 @@ var isFile = function(file) {
   return exists;
 };
 
-var unpack = function(tarPath) {
+var unpack = function(tarPath, done) {
   var extractor = tar.Extract({
     path: __dirname
   });
@@ -34,6 +34,9 @@ var unpack = function(tarPath) {
     if (!isFile(vipsHeaderPath)) {
       error('Could not unpack ' + tarPath);
     }
+    if (typeof done === 'function') {
+      done();
+    }
   });
   fs.createReadStream(tarPath).on('error', error)
     .pipe(zlib.Unzip())
@@ -73,10 +76,15 @@ module.exports.download_vips = function() {
     if (isFile(tarPath)) {
       unpack(tarPath);
     } else {
-      // Download
-      tarPath = path.join(tmp, tarFilename);
+      // Download to per-process temporary file
+      tarPath = path.join(tmp, process.pid + '-' + tarFilename);
       var tmpFile = fs.createWriteStream(tarPath).on('finish', function() {
-        unpack(tarPath);
+        unpack(tarPath, function() {
+          // Attempt to remove temporary file
+          try {
+            fs.unlinkSync(tarPath);
+          } catch (err) {}
+        });
       });
       var options = {
         url: distBaseUrl + tarFilename
diff --git a/docs/changelog.md b/docs/changelog.md
index 86069b98..bfe8360d 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -16,6 +16,10 @@
   [#326](https://github.com/lovell/sharp/issues/326)
   [@c0decafe](https://github.com/c0decafe)
 
+* Attempt to remove temporary file after installation.
+  [#331](https://github.com/lovell/sharp/issues/331)
+  [@dtoubelis](https://github.com/dtoubelis)
+
 #### v0.12.1 - 12<sup>th</sup> December 2015
 
 * Allow use of SIMD vector instructions (via liborc) to be toggled on/off.