mirror of
https://github.com/daveallie/crosspoint-reader.git
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Add reproducible Nix dev environment
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parent
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commit
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1
.gitignore
vendored
1
.gitignore
vendored
@ -4,3 +4,4 @@
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.vscode
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lib/EpdFont/fontsrc
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*.generated.h
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result
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61
flake.lock
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61
flake.lock
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{
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"nodes": {
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"flake-parts": {
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"inputs": {
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"nixpkgs-lib": "nixpkgs-lib"
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},
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"locked": {
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"lastModified": 1765835352,
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"narHash": "sha256-XswHlK/Qtjasvhd1nOa1e8MgZ8GS//jBoTqWtrS1Giw=",
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"owner": "hercules-ci",
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"repo": "flake-parts",
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"rev": "a34fae9c08a15ad73f295041fec82323541400a9",
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"type": "github"
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},
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"original": {
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"owner": "hercules-ci",
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"repo": "flake-parts",
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"type": "github"
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}
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},
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"nixpkgs": {
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"locked": {
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"lastModified": 1767379071,
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"narHash": "sha256-EgE0pxsrW9jp9YFMkHL9JMXxcqi/OoumPJYwf+Okucw=",
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"owner": "NixOS",
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"repo": "nixpkgs",
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"rev": "fb7944c166a3b630f177938e478f0378e64ce108",
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"type": "github"
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},
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"original": {
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"owner": "NixOS",
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"ref": "nixos-unstable",
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"repo": "nixpkgs",
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"type": "github"
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}
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},
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"nixpkgs-lib": {
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"locked": {
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"lastModified": 1765674936,
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"narHash": "sha256-k00uTP4JNfmejrCLJOwdObYC9jHRrr/5M/a/8L2EIdo=",
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"owner": "nix-community",
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"repo": "nixpkgs.lib",
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"rev": "2075416fcb47225d9b68ac469a5c4801a9c4dd85",
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"type": "github"
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},
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"original": {
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"owner": "nix-community",
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"repo": "nixpkgs.lib",
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"type": "github"
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}
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},
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"root": {
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"inputs": {
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"flake-parts": "flake-parts",
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"nixpkgs": "nixpkgs"
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}
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}
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},
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"root": "root",
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"version": 7
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}
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120
flake.nix
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120
flake.nix
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{
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description = "CrossPoint Reader - Firmware for Xteink X4 e-paper display";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
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flake-parts.url = "github:hercules-ci/flake-parts";
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};
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outputs = inputs@{ flake-parts, ... }:
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flake-parts.lib.mkFlake { inherit inputs; } {
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systems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
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perSystem = { config, self', pkgs, lib, system, ... }:
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let
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# Version from platformio.ini
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version = "0.12.0";
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# Create a platformio wrapper with all required dependencies
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platformio = pkgs.platformio-core.overrideAttrs (old: {
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propagatedBuildInputs = (old.propagatedBuildInputs or [ ]) ++ [
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pkgs.python3Packages.packaging
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];
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});
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# Python with required packages for build scripts
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pythonEnv = pkgs.python3.withPackages (ps: [ ps.pip ]);
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# FHS environment to run PlatformIO with dynamically linked toolchains
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fhsEnv = pkgs.buildFHSEnv {
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name = "pio-env";
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targetPkgs = pkgs: [
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platformio
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pythonEnv
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pkgs.git
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pkgs.zlib
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pkgs.stdenv.cc.cc.lib
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];
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runScript = "bash";
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};
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# Build script that runs inside FHS environment
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buildScript = pkgs.writeShellScriptBin "build-firmware" ''
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set -e
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echo "Building CrossPoint Reader firmware..."
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echo ""
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# Ensure we're in the project directory
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if [ ! -f platformio.ini ]; then
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echo "Error: platformio.ini not found. Run this from the project root."
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exit 1
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fi
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# Run the build inside FHS environment
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${fhsEnv}/bin/pio-env -c "pio run -e gh_release"
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echo ""
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echo "Build complete! Firmware at: .pio/build/gh_release/firmware.bin"
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'';
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# Wrapper for pio that runs inside FHS environment
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pioWrapper = pkgs.writeShellScriptBin "pio" ''
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exec ${fhsEnv}/bin/pio-env -c "pio $*"
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'';
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in
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{
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packages = {
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default = buildScript;
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build-script = buildScript;
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};
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devShells.default = pkgs.mkShell {
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packages = [
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# Build tools (wrapped for FHS compatibility)
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fhsEnv
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pioWrapper
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buildScript
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pythonEnv
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# C/C++ language server
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pkgs.clang-tools
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# Python language server
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pkgs.python3Packages.python-lsp-server
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# Nix language server
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pkgs.nixd
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# Git for submodules
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pkgs.git
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# Useful utilities
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pkgs.esptool
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];
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shellHook = ''
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echo "CrossPoint Reader development environment"
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echo ""
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echo "Build commands:"
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echo " pio run - Build firmware (default env, via FHS wrapper)"
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echo " pio run -e gh_release - Build release firmware"
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echo " pio run --target upload - Flash to device"
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echo " build-firmware - Build release firmware directly"
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echo ""
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echo "Enter FHS shell for direct PlatformIO access:"
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echo " pio-env - Enter FHS shell with PlatformIO"
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echo ""
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echo "Language servers available:"
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echo " clangd - C/C++ LSP"
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echo " pylsp - Python LSP"
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echo " nixd - Nix LSP"
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'';
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};
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apps.build = {
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type = "app";
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program = "${buildScript}/bin/build-firmware";
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};
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};
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};
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}
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