From 730e633d07aaff6030099b77db39037fefd9d0be Mon Sep 17 00:00:00 2001
From: Vasily <vautkin@teknik.io>
Date: Mon, 29 Jul 2019 14:02:42 +0200
Subject: [PATCH] Add naive `make install` for Linux

This enables a `sudo make install` that copies the build directory to
the PREFIX directory (/opt/OpenVR-AdvancedSettings/AdvancedSettings by
default).

The entire directory is being copied because Qt is incredibly weird
about how the INSTALLS variable works. From testing it appears that only
files that exist before the build process has started (even the
file_copy process) will be eligible for installation.

If the /OpenVR-AdvancedSettings/ directory is excluded, Qt will attempt
to remove the /opt/ folder on `make uninstall`, this is obviously not
desirable.
---
 advancedSettings.pro       | 13 +++++++++++++
 docs/building_for_linux.md |  7 +++++++
 2 files changed, 20 insertions(+)

diff --git a/advancedSettings.pro b/advancedSettings.pro
index 93a1e3b..539753a 100644
--- a/advancedSettings.pro
+++ b/advancedSettings.pro
@@ -94,3 +94,16 @@ win32 {
     # for running executables.
     QMAKE_POST_LINK = cmd /c $$WINDEPLOYQT_FULL_LINE
 }
+
+# Add make install support
+unix {
+    isEmpty(PREFIX){
+        PREFIX = /opt/OpenVR-AdvancedSettings
+    }
+
+    application.path = $$PREFIX
+    application.files = $$COPY_DEST_DIR
+
+    INSTALLS += application
+}
+
diff --git a/docs/building_for_linux.md b/docs/building_for_linux.md
index 391453f..5b710b1 100644
--- a/docs/building_for_linux.md
+++ b/docs/building_for_linux.md
@@ -13,6 +13,7 @@
   * [Ubuntu 18.04 Bionic](#ubuntu-1804-bionic)
 - [Locations and Environment Variables](#locations-and-environment-variables)
 - [Building](#building)
+- [Installing](#installing)
 - [Contributing](#contributing)
 
 # Requirements
@@ -175,6 +176,12 @@ With the programs above installed and environment variables set, go into the roo
 
 If you copy the `third-party/openvr/lib/linux64/libopenvr_api.so` file into `/lib` you can run the `AdvancedSettings` file without anything else. Otherwise you'll need to run the `run-with-library.sh` file.
 
+# Installing
+
+The application can be installed by running `sudo make install` in the directory of the `Makefile`. 
+This will copy the build directory to `/opt/OpenVR-AdvancedSettings/AdvancedSettings` by default.
+The `PREFIX` location can be changed while running `qmake` by writing `qmake PREFIX=/your/dir/here`, then `make` and `sudo make install`.
+
 # Contributing
 
 For full details, see [CONTRIBUTING.md](CONTRIBUTING.md).