From ec499f96920556ec6849f7a3f0ca5bf4bd1b1ff4 Mon Sep 17 00:00:00 2001
From: urob <978080+urob@users.noreply.github.com>
Date: Wed, 7 Aug 2024 14:42:55 -0400
Subject: [PATCH] Set up dev environment

---
 .envrc     |   1 +
 .gitignore |   5 ++
 Justfile   |  28 +++++++++++
 flake.lock | 142 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 flake.nix  |  31 ++++++++++++
 5 files changed, 207 insertions(+)
 create mode 100644 .envrc
 create mode 100644 .gitignore
 create mode 100644 Justfile
 create mode 100644 flake.lock
 create mode 100644 flake.nix

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..43e4bdb
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+.direnv
+.venv
+.west
+modules
+zmk
diff --git a/Justfile b/Justfile
new file mode 100644
index 0000000..a3e32f8
--- /dev/null
+++ b/Justfile
@@ -0,0 +1,28 @@
+default:
+    @just --list --unsorted
+
+# build firmware
+build:
+    echo "Building firmware..."
+
+# clear build cache
+clean:
+    rm -rf build
+
+# list all build targets
+list:
+    echo "TBD"
+
+# initialize west
+init:
+    west init -l config
+    west update
+    west zephyr-export
+
+# upgrade west
+upgrade:
+    west update
+
+# upgrade zephyr
+upgrade-zephyr:
+    nix flake update --flake .
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..f20b4aa
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,142 @@
+{
+  "nodes": {
+    "mdbook-nixdoc": {
+      "inputs": {
+        "nix-github-actions": [
+          "zephyr-nix",
+          "pyproject-nix",
+          "nix-github-actions"
+        ],
+        "nixpkgs": [
+          "zephyr-nix",
+          "pyproject-nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1708395692,
+        "narHash": "sha256-smf0VmxGbjJDZqKvxxG3ZVqubgbVwAWG26wPo+BT/A0=",
+        "owner": "adisbladis",
+        "repo": "mdbook-nixdoc",
+        "rev": "d6a71b114b9221c0b4f20d31b81766d072cc26be",
+        "type": "github"
+      },
+      "original": {
+        "owner": "adisbladis",
+        "repo": "mdbook-nixdoc",
+        "type": "github"
+      }
+    },
+    "nix-github-actions": {
+      "inputs": {
+        "nixpkgs": [
+          "zephyr-nix",
+          "pyproject-nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1701208414,
+        "narHash": "sha256-xrQ0FyhwTZK6BwKhahIkUVZhMNk21IEI1nUcWSONtpo=",
+        "owner": "nix-community",
+        "repo": "nix-github-actions",
+        "rev": "93e39cc1a087d65bcf7a132e75a650c44dd2b734",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nix-github-actions",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1720535198,
+        "narHash": "sha256-zwVvxrdIzralnSbcpghA92tWu2DV2lwv89xZc8MTrbg=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "205fd4226592cc83fd4c0885a3e4c9c400efabb5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "pyproject-nix": {
+      "inputs": {
+        "mdbook-nixdoc": "mdbook-nixdoc",
+        "nix-github-actions": "nix-github-actions",
+        "nixpkgs": [
+          "zephyr-nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1708414356,
+        "narHash": "sha256-neHF92cht4G94Ye1j9YgLeqdE0dGL920lQQMLTqNm9A=",
+        "owner": "nix-community",
+        "repo": "pyproject.nix",
+        "rev": "f75d39ce888632500bf4cff2197784929d3ed265",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "pyproject.nix",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "zephyr": "zephyr",
+        "zephyr-nix": "zephyr-nix"
+      }
+    },
+    "zephyr": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1697797249,
+        "narHash": "sha256-72QFsKOWkF6BiP4XgZAXXSBcN4t6yvhAeXCpgCYrhe8=",
+        "owner": "zephyrproject-rtos",
+        "repo": "zephyr",
+        "rev": "a6eef0ba3755f2530c5ce93524e5ac4f5be30194",
+        "type": "github"
+      },
+      "original": {
+        "owner": "zephyrproject-rtos",
+        "ref": "v3.5.0",
+        "repo": "zephyr",
+        "type": "github"
+      }
+    },
+    "zephyr-nix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "pyproject-nix": "pyproject-nix",
+        "zephyr": [
+          "zephyr"
+        ]
+      },
+      "locked": {
+        "lastModified": 1720132542,
+        "narHash": "sha256-5o5qhBec7GABj/x3LPOVQn8W9iyyLTqH+FMLe454HOc=",
+        "owner": "urob",
+        "repo": "zephyr-nix",
+        "rev": "6339867e76405b7e84270b908c2ab6deca5f6d8d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "urob",
+        "repo": "zephyr-nix",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..ec1dced
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,31 @@
+{
+  inputs = {
+    # Pin to 23.11 to provide python38 dependency for sdk
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
+
+    # Zephyr version determining which requirements.txt to use to install python dependencies
+    zephyr.url = "github:zephyrproject-rtos/zephyr/v3.5.0";
+    zephyr.flake = false;
+
+    # Zephyr sdk and host tools
+    zephyr-nix.url = "github:urob/zephyr-nix";
+    zephyr-nix.inputs.nixpkgs.follows = "nixpkgs";
+    zephyr-nix.inputs.zephyr.follows = "zephyr";
+  };
+
+  outputs = { self, nixpkgs, zephyr-nix, ... }: let
+    system = "x86_64-linux";
+    pkgs = nixpkgs.legacyPackages.${system};
+    zephyr = zephyr-nix.packages.${system};
+  in {
+    devShells.${system}.default = pkgs.mkShell {
+      packages = [
+        zephyr.sdkFull
+        zephyr.pythonEnv
+        # zephyr.hosttools
+        pkgs.cmake
+        pkgs.ninja
+      ];
+    };
+  };
+}