From 28005ac97891794abc6ef8005e84084dd8bd1fa3 Mon Sep 17 00:00:00 2001
From: clerie <git@clerie.de>
Date: Thu, 28 Dec 2023 12:45:34 +0100
Subject: [PATCH] Init repo

---
 README.md  | 21 +++++++++++++++++++++
 flake.lock | 27 +++++++++++++++++++++++++++
 flake.nix  | 39 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 87 insertions(+)
 create mode 100644 README.md
 create mode 100644 flake.lock
 create mode 100644 flake.nix

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..4c9143c
--- /dev/null
+++ b/README.md
@@ -0,0 +1,21 @@
+# openwrt-buildroot-nix
+
+This provides a Nix environment for [OpenWRT Buildroot](https://openwrt.org/docs/guide-developer/toolchain/use-buildsystem).
+
+## Usage
+
+```
+nix develop git+https://git.clerie.de/clerie/openwrt-buildroot-nix.git
+```
+
+## Troubleshooting
+
+### Dependencies cannot be found randomly
+
+OpenWRT buildroot seem to hardcode paths it found for dependencies.
+If the nix environment gets changed these paths change too.
+Clean the build environment to get it working again:
+
+```
+make dirclean
+```
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..f568b31
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1703499205,
+        "narHash": "sha256-lF9rK5mSUfIZJgZxC3ge40tp1gmyyOXZ+lRY3P8bfbg=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "e1fa12d4f6c6fe19ccb59cac54b5b3f25e160870",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..cabf7c7
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,39 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+  };
+  outputs = { self, nixpkgs, ... }: {
+
+    devShells."x86_64-linux".default = let
+
+      pkgs = import nixpkgs {
+        system = "x86_64-linux";
+      };
+
+    in pkgs.mkShell {
+
+      nativeBuildInputs = with pkgs; [
+        pkg-config
+      ];
+
+      buildInputs = with pkgs; [
+        git
+        ncurses
+        unzip
+        python3
+        cdrkit # mkisofs
+      ];
+
+      /*
+        OpenWRT toolchain code isn't as clean as it needs to be to
+        pass nixpkgs hardening, so we disable it
+
+        Resolves:
+          -Werror=format-security
+      */      
+      hardeningDisable = [ "all" ];
+
+    };
+
+  };
+}