From b1b543183801bd298e0e91d1520846b895bbc7b5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Filip=20M=C3=B6sner?= <filip.mosner@seznam.cz>
Date: Tue, 31 May 2022 15:03:39 +0200
Subject: [PATCH] feat: add installDir variable for NsisUpdater

---
 .changeset/curly-oranges-attack.md           | 5 +++++
 docs/api/electron-builder.md                 | 3 +++
 packages/electron-updater/src/AppUpdater.ts  | 6 ++++++
 packages/electron-updater/src/NsisUpdater.ts | 5 +++++
 4 files changed, 19 insertions(+)
 create mode 100644 .changeset/curly-oranges-attack.md

diff --git a/.changeset/curly-oranges-attack.md b/.changeset/curly-oranges-attack.md
new file mode 100644
index 00000000000..b9e493e251a
--- /dev/null
+++ b/.changeset/curly-oranges-attack.md
@@ -0,0 +1,5 @@
+---
+"electron-updater": minor
+---
+
+Add installDir property for NsisUpdater. Now is it posible change install folder from AppUpdater.
diff --git a/docs/api/electron-builder.md b/docs/api/electron-builder.md
index 0c7b364923c..961424f6e0d 100644
--- a/docs/api/electron-builder.md
+++ b/docs/api/electron-builder.md
@@ -1599,6 +1599,9 @@ return path.join(target.outDir, <code>__${target.name}-${getArtifactArchName(arc
 <p>Currently false to prevent breaking the current API, but it should be changed to default true at some point that breaking changes are allowed.</p>
 </li>
 <li>
+<p><code id="AppUpdater-installDir">installDir</code> = <code>''</code> String - <em>NSIS updater only</em> - Install folder for NSIS updater</p>
+</li>
+<li>
 <p><code id="AppUpdater-currentVersion">currentVersion</code> SemVer - The current application version.</p>
 </li>
 <li>
diff --git a/packages/electron-updater/src/AppUpdater.ts b/packages/electron-updater/src/AppUpdater.ts
index 25dd7212878..c3f3335e9af 100644
--- a/packages/electron-updater/src/AppUpdater.ts
+++ b/packages/electron-updater/src/AppUpdater.ts
@@ -86,6 +86,12 @@ export abstract class AppUpdater extends (EventEmitter as new () => TypedEmitter
 
   disableWebInstaller = false
 
+  /**
+   * Install dir for Nsis Updater
+   *
+   */
+  installDir = ''
+
   /**
    * The current application version.
    */
diff --git a/packages/electron-updater/src/NsisUpdater.ts b/packages/electron-updater/src/NsisUpdater.ts
index 5cf8c2e82db..f18730af32f 100644
--- a/packages/electron-updater/src/NsisUpdater.ts
+++ b/packages/electron-updater/src/NsisUpdater.ts
@@ -109,6 +109,11 @@ export class NsisUpdater extends BaseUpdater {
       args.push("--force-run")
     }
 
+    if (this.installDir && typeof this.installDir === 'string') {
+      // maybe check if folder exists
+      args.push(`/D=${this.installDir}`)
+    }
+
     const packagePath = this.downloadedUpdateHelper == null ? null : this.downloadedUpdateHelper.packageFile
     if (packagePath != null) {
       // only = form is supported