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meta: add override mechanism (#27)
now if you run `just eject linux`, you can edit the kernel source code
in overrides/linux/src, then run `just build linux run` to incrementally
rebuild the kernel then boot the system.
author
Thomas Stokes
committer
GitHub
date
(Feb 23, 2025, 8:27 PM +0800)
commit
8e983094
8e98309426bb75375ee4446213f6ac2c14a0205a
parent
764f388c
764f388cdaaf0879c0152a026dd9db023ecded9c
+95
-22
+28
-1
all-packages.nix
+28
-1
all-packages.nix
···
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}:
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let
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inherit (lib) filterAttrs pipe;
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inherit (builtins) mapAttrs readDir;
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pkgs =
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{
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inherit lib currentSystem;
···
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// lib.packagesFromDirectoryRecursive {
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callPackage = lib.callPackageWith (pkgs // hostpkgs);
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directory = ./packages;
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-
};
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}
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// (
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let
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isImpure = builtins ? currentSystem;
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overrides = builtins.getEnv "DISTRO_OVERRIDES";
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in
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if isImpure && overrides != "" then
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pipe overrides [
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readDir
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(filterAttrs (_name: type: type == "directory"))
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(mapAttrs (name: _: /${overrides}/${name}/outputs))
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(mapAttrs (
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name: dir:
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let
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pkg = (mapAttrs (output: _: /${dir}/${output}) (readDir dir)) // {
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type = "derivation";
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src = /${overrides}/${name}/src;
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outPath = pkg.out;
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};
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in
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pkg
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))
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]
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else
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{ }
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);
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in
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pkgs
-9
flake/apps.nix
-9
flake/apps.nix
···
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{
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pkgs,
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self',
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config,
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...
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}:
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let
···
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--header Cross-Origin-Embedder-Policy:require-corp \
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--header Cross-Origin-Resource-Policy:cross-origin "$@"
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'';
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-
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make-shells.default.packages = [
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(pkgs.runCommand "dev-commands" { } ''
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mkdir -p $out/bin
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ln -s ${config.apps.runner.program} $out/bin/run
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ln -s ${config.apps.serve.program} $out/bin/serve
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'')
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];
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};
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}
+1
flake/format.nix
+1
flake/format.nix
+3
flake/shell.nix
+3
flake/shell.nix
+43
justfile
+43
justfile
···
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_help:
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@just --list
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eject pkg:
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#!/usr/bin/env bash
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set -e
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if [ -d "overrides/{{ pkg }}" ]; then
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echo "override for {{ pkg }} already exists"
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exit 1
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fi
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+
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src=$(nix build .#{{ pkg }}.src --print-out-paths)
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mkdir -p overrides/{{ pkg }}
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cp -r $src overrides/{{ pkg }}/src
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chmod -R u+w overrides/{{ pkg }}/src
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echo "override for {{ pkg }} created in overrides/{{ pkg }}"
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+
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_nix cmd *args:
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DISTRO_OVERRIDES=$PWD/overrides exec nix {{ cmd }} --impure --print-build-logs {{ args }}
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build pkg:
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#!/usr/bin/env bash
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set -e
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if [ ! -d "overrides/{{ pkg }}" ]; then
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exec just _nix build .#{{ pkg }}
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fi
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+
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redirects=()
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for package in $(ls overrides); do
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for output in $(ls overrides/$package/outputs); do
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redirects+=(--redirect .#$package.$output $PWD/overrides/$package/outputs/$output)
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done
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done
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cd overrides/{{ pkg }}
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rm -rf outputs
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mkdir outputs
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exec nix develop .#{{ pkg }} --build "${redirects[@]}"
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run *args: (_nix "run" ".#runner" args)
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serve *args: (_nix "run" ".#serve" args)
+18
-2
packages/run/package.nix
+18
-2
packages/run/package.nix
···
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''
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if [[ -v stdenv ]]; then
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source $stdenv/setup
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build
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buildPhase
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else
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source $commandPath
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fi
···
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fi
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eval "_build() { $(cat $commandPath); }"
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build() {
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buildPhase() {
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if [[ "$name" =~ -env$ ]]; then
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name="${"$"}{name%-env}"
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if [ ! -d "overrides/$name/src" ]; then
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echo "error: no override found for $name"
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return 1
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fi
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cd overrides/$name/src
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unset src
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_build
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return
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fi
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if [[ -v src ]]; then
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cp -r $src src
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cd src
···
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unset src
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fi
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_build
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}
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runHook() {
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"$1"
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}
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'';
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passAsFile = [ "setup" ];