PoC
This commit is contained in:
commit
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{ pkgs ? import <nixpkgs> {}
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# OpenWRT release
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, release ? "21.02.3"
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# OpenWRT target
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, target
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# Hardware model
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, profile
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, variant ? "generic"
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# Checksum of the `sha256sums` file
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, sha256
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, feedsSha256
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}:
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with pkgs;
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let
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fetchSums = url: sha256:
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let
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sumsFile = fetchurl {
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url = "${url}/sha256sums";
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inherit sha256;
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};
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filesSha256 =
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builtins.foldl' (filesSha256: line:
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let
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m = builtins.match "([0-9a-f]+) \\*(.+)" line;
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in
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if builtins.isList m && builtins.length m == 2
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then filesSha256 // {
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${builtins.elemAt m 1} = builtins.elemAt m 0;
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} else filesSha256
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) {} (lib.splitString "\n" (builtins.readFile sumsFile));
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in
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builtins.mapAttrs (file: sha256:
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fetchurl {
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url = "${url}/${file}";
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inherit sha256;
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}
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) filesSha256;
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fetchPackages = url: packagesContent:
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let
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parsedPackages = map (section:
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builtins.foldl' (data: line:
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let
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m = builtins.match "(.+): (.+)" line;
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in
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if builtins.isList m && builtins.length m == 2
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then data // {
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${builtins.elemAt m 0} = builtins.elemAt m 1;
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} else data
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) {} (lib.splitString "\n" section)
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) (lib.splitString "\n\n" packagesContent);
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in
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builtins.foldl' (variantFiles: parsed:
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if parsed ? Filename && parsed ? SHA256sum
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then
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variantFiles // {
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${parsed.Filename} = fetchurl {
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url = "${url}/${parsed.Filename}";
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sha256 = parsed.SHA256sum;
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};
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}
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else
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variantFiles
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) {} parsedPackages;
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baseUrl = "https://downloads.openwrt.org/releases/${release}";
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variantFiles = fetchSums "${baseUrl}/targets/${target}/${variant}" sha256;
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feedsPackagesFile = builtins.mapAttrs (feed: sha256:
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fetchurl {
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url = "${baseUrl}/packages/${arch}/${feed}/Packages";
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inherit sha256;
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}
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) feedsSha256;
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feedsFiles = builtins.mapAttrs (feed: packagesFile:
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fetchPackages "${baseUrl}/packages/${arch}/${feed}" (builtins.readFile packagesFile)
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) feedsPackagesFile;
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feedsPackages = builtins.mapAttrs (feed: files:
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runCommandNoCC "openwrt-${feed}-packages" {} ''
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mkdir $out
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ln -s ${feedsPackagesFile.${feed}} $out/Packages
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${lib.concatMapStrings (file: ''
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ln -s ${files.${file}} $out/${file}
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'') (builtins.attrNames files)}
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''
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) feedsFiles;
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openwrtConfigFile = stdenv.mkDerivation {
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name = "openwrt-${release}-${target}-${variant}.config";
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src = variantFiles."openwrt-imagebuilder-${release}-${target}-${variant}.${hostPlatform.uname.system}-${hostPlatform.uname.processor}.tar.xz";
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phases = [ "unpackPhase" "installPhase" ];
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installPhase = ''
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cat .config
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cp .config $out
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'';
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};
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openwrtConfig = builtins.foldl' (openwrtConfig: line:
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let
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m1 = builtins.match "(.+)=\"(.+)\"" line;
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m2 = builtins.match "(.+)=(.+)" line;
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in
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if builtins.isList m1 && builtins.length m1 == 2
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then openwrtConfig // {
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${builtins.elemAt m1 0} = builtins.elemAt m1 1;
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}
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else if builtins.isList m2 && builtins.length m2 == 2
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then openwrtConfig // {
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${builtins.elemAt m2 0} = builtins.elemAt m2 1;
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}
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else openwrtConfig
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) {} (
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lib.splitString "\n" (builtins.readFile openwrtConfigFile)
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);
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arch = openwrtConfig.CONFIG_TARGET_ARCH_PACKAGES;
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in
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stdenv.mkDerivation {
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name = "openwrt-${release}-${target}-${variant}-${profile}";
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src = variantFiles."openwrt-imagebuilder-${release}-${target}-${variant}.${hostPlatform.uname.system}-${hostPlatform.uname.processor}.tar.xz";
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patchPhase = ''
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patchShebangs scripts staging_dir/host/bin
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substituteInPlace rules.mk \
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--replace "SHELL:=/usr/bin/env bash" "SHELL:=${runtimeShell}"
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grep -r usr/bin/env
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'';
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configurePhase = ''
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cat >repositories.conf <<EOF
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src imagebuilder file:packages
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${lib.concatMapStrings (feed: ''
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src openwrt_${feed} file:${feedsPackages.${feed}}
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'') (builtins.attrNames feedsPackages)}
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EOF
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cat repositories.conf
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'';
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nativeBuildInputs = [
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zlib unzip bzip2
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ncurses which rsync git file getopt wget
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bash perl python3
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];
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buildPhase =
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let
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packagesDir = runCommandNoCC "openwrt-${release}-${target}-${variant}-packages" {} ''
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mkdir packages
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${lib.concatMapStrings (file:
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lib.optionalString (lib.hasPrefix "packages/" file) ''
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ln -s ${variantFiles.${file}} ${file}
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'') (builtins.attrNames variantFiles)}
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mv packages $out
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'';
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in ''
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rm -r packages
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cp -r ${packagesDir} packages
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chmod u+w -R packages
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make image SHELL=${runtimeShell} PROFILE="${profile}"
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'';
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installPhase = ''
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cp -ar bin $out
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'';
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}
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|
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@ -0,0 +1,11 @@
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import ./builder.nix {
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target = "ath79";
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profile = "ubnt_unifiac-lite";
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sha256 = "01vyvxkphnlpvnw2az8ficzzjn3zjvwlvkp0hpicy8w94ih1fxdj";
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feedsSha256 = {
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base = "1sffhx4jyh6giqk3k6wija4ld6rynx2dbvda7v9fxpjc6f50zz8v";
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luci = "1ib8wya2adli6b5fcmbwd0sh77sr98ax86irxdabc7ilkr14v799";
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routing = "1ag2cw1m4six0ffzjw3fsqzksl3mb8izkraa245663nda76ck77a";
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packages = "119iqpahn581ql2avd03zpmgcjzzy5wizhivjaz48bqz85mbd570";
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};
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}
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