From af9c658c6bdbc68fc65de15c412cc84c01ed2aa6 Mon Sep 17 00:00:00 2001
From: wucke13 <wucke13@gmail.com>
Date: Sat, 16 Jan 2021 16:20:25 +0100
Subject: [PATCH] add nix derivation

This allows nix users to easily run the scripts on systems with nix
---
 .gitignore        |  3 +++
 doc/Linux.md      | 17 +++++++++++++++++
 linux/default.nix | 21 +++++++++++++++++++++
 3 files changed, 41 insertions(+)
 create mode 100644 linux/default.nix

diff --git a/.gitignore b/.gitignore
index 355a98d..89da095 100644
--- a/.gitignore
+++ b/.gitignore
@@ -331,3 +331,6 @@ ASALocalRun/
 
 # Coverity
 cov-int/
+
+# nix stuff
+**/result
diff --git a/doc/Linux.md b/doc/Linux.md
index 6fc7774..9bdfa3b 100644
--- a/doc/Linux.md
+++ b/doc/Linux.md
@@ -135,3 +135,20 @@ Starting execution at address 0x08002000... done.
 Firmware flashed successfully.
 
 ```
+
+# Using `nix`
+
+In case you happen to have [`nix`](https://nixos.org/explore.html) installed,
+you can simply use the `default.nix` file in the linux folder to build a
+compatible derivation of both `flash-multi` and `multi-bootreloader`. To
+install it in your users environment, simply run `nix-env -f . -i`.
+
+Beware: This does not alter udev rules, so you likely will run into permission
+problems with the DFU device and/or the serial device. Possible solution in
+descending level of recommendability:
+
++ install appropiate udev rules in your system
++ run the script in question as `root` user
++ run `while true; do sudo chown $USER /dev/bus/usb/*; done` while using the
+  script. Afterwards run `sudo udevadm control --reload-rules && udevadm trigger` to
+  reaply all udev rules in question.
diff --git a/linux/default.nix b/linux/default.nix
new file mode 100644
index 0000000..b1e6f77
--- /dev/null
+++ b/linux/default.nix
@@ -0,0 +1,21 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+with pkgs;
+
+stdenv.mkDerivation rec {
+  name = "flash-multi";
+
+  src = ./.;
+
+  nativeBuildInputs = [ autoPatchelfHook ];
+  buildInputs = [ libusb ];
+
+  installPhase = ''
+    runHook preInstall
+    mkdir -p $out/{bin,${name}}
+    mv * $out/${name}/
+    ln -s $out/${name}/flash-multi $out/bin/
+    ln -s $out/${name}/multi-bootreloader $out/bin/
+    runHook postInstall
+  '';
+}