From 6a4c73ba7f82165ebd2b6f236360804d51b49045 Mon Sep 17 00:00:00 2001
From: C-3PO <c-3po@jedipedia.net>
Date: Thu, 9 Aug 2018 17:16:34 +0200
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=8E=20Use=20executable=20for=20install?=
 =?UTF-8?q?ation=20instead=20of=20JS?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/ssn/findReleasePath.ts          |  2 +-
 src/ssn/getPatch.ts                 | 13 +++++++------
 src/ssn/patcher-installer/launch.ts | 26 ++++++++++++++++++++++++++
 3 files changed, 34 insertions(+), 7 deletions(-)
 create mode 100644 src/ssn/patcher-installer/launch.ts

diff --git a/src/ssn/findReleasePath.ts b/src/ssn/findReleasePath.ts
index a0801ed..d435244 100644
--- a/src/ssn/findReleasePath.ts
+++ b/src/ssn/findReleasePath.ts
@@ -1,5 +1,5 @@
 import { Product } from '../interfaces/ISettings';
-import verifyProductName from '../ssn/verify/verifyProductName';
+import verifyProductName from './verify/verifyProductName';
 
 /** For the given release in the given product, returns from which releases we can patch to this release. */
 function getFromList({ product, to: releaseTo}: {product: Product, to: number}) {
diff --git a/src/ssn/getPatch.ts b/src/ssn/getPatch.ts
index dc818e0..3cf84c0 100644
--- a/src/ssn/getPatch.ts
+++ b/src/ssn/getPatch.ts
@@ -7,6 +7,7 @@ import { Product } from '../interfaces/ISettings';
 import { SsnDiffType } from '../interfaces/ISsnFileEntry';
 import extractFileAsStream from './extractFileAsStream';
 import getSolidpkg from './getSolidpkg';
+import launch from './patcher-installer/launch';
 import readSsnFile from './reader/readSsnFile';
 import getFileFromDisks from './streams/getFileFromDisks';
 import verifyPatch from './verify/verifyPatch';
@@ -83,15 +84,15 @@ export default async function getPatch({ product, from, to, sourceDirectory, tar
   //Extract newly added files
   fileEntries.filter((file) => file.diffType === SsnDiffType.NewFile).forEach(async (file) => {
     try {
-      //extract file
-      const fileStream = await getFileFromDisks(diskFilenames, { diskStart: file.diskNumberStart, offset: file.offset, length: file.compressedSize });
-      const fileContents = await extractFileAsStream(file, fileStream);
-
-      //write to disk
+      //create file write stream
       const outputName = path.join(targetDir, file.name);
       await createDirRecursively(path.dirname(outputName));
       const outputStream = fs.createWriteStream(outputName);
-      fileContents.pipe(outputStream);
+
+      //start installation
+      await launch(diskFilenames[file.diskNumberStart], file.offset, file.compressedSize, file.decryptionKeys, outputStream);
+
+      outputStream.close();
     } catch (error) {
       console.error(`Could not extract file "${file.name}"`, error);
     }
diff --git a/src/ssn/patcher-installer/launch.ts b/src/ssn/patcher-installer/launch.ts
new file mode 100644
index 0000000..7eee7d0
--- /dev/null
+++ b/src/ssn/patcher-installer/launch.ts
@@ -0,0 +1,26 @@
+import * as childProcess from 'child_process';
+import * as fs from 'fs';
+import * as path from 'path';
+
+const processPath = path.join(__dirname, '../../lib/patcher-installer');
+
+export default function launchProcess(diskFile: string, offset: number, compressedSize: number, decryptionKeys: [number, number, number] | undefined, outputStream: fs.WriteStream) {
+  return new Promise((resolve, reject) => {
+    const parameters = [
+      diskFile,
+      offset,
+      compressedSize,
+    ];
+    if (decryptionKeys !== undefined) {
+      parameters.push(...decryptionKeys);
+    }
+    const spawnedProcess = childProcess.spawn(processPath, parameters.map((value) => value.toString(), { cwd: '.' }));
+
+    spawnedProcess.stdout.pipe(outputStream);
+    //spawnedProcess.stdout.on('data', console.log);
+    spawnedProcess.stdout.on('end', resolve);
+
+    spawnedProcess.stderr.setEncoding('utf8');
+    spawnedProcess.stderr.on('data', reject);
+  });
+}