Initial commit
This commit is contained in:
commit
bdc8ae889d
1
.envrc
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1
.envrc
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use flake
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1
.gitignore
vendored
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.gitignore
vendored
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.direnv/
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54
README.md
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54
README.md
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# nixq
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Like `jq`, `yq` and `htmlq`, but for nix :snowflake::snowflake::snowflake:
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Basically just a shell interface for [nix-select](https://git.clan.lol/clan/nix-select/).
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## Examples
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```
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$ nixq . 'packages.{x86_64-linux,aarch64-linux}.*' --yaml
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aarch64-linux:
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default: /nix/store/6nrvhk2viafsy84sg29jrzkf4xdap529-nixq
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nixq: /nix/store/6nrvhk2viafsy84sg29jrzkf4xdap529-nixq
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nixq-lix: /nix/store/2m7z3kjf76mqaldh40r3zfg39vfbrg93-nixq
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nixq-nix: /nix/store/q8jqlz75hs6hlpzsbjhr994w2ffzyply-nixq
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x86_64-linux:
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default: /nix/store/fx8n5krq20y6z1p97iv7ra77zzq0lvf6-nixq
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nixq: /nix/store/fx8n5krq20y6z1p97iv7ra77zzq0lvf6-nixq
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nixq-lix: /nix/store/a2znjf47hhfd2749ff0lwy7ljz3nsz43-nixq
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nixq-nix: /nix/store/046dkmci916zgy1690pqvcb0wijrij98-nixq
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```
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```
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$ nixq -f '<nixpkgs>' 'pkgs.{spade,sus-compiler,pagefind}.meta.maintainers.*.github'
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{
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"pagefind": [
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"pbsds"
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],
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"spade": [
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"pbsds"
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],
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"sus-compiler": [
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"pbsds"
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]
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}
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```
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```
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$ nixq flake:nixpkgs 'legacyPackages.x86_64-linux.{disko,pagefind}.meta.available'
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{
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"disko": true,
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"pagefind": true
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}
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```
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```
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$ nixq github:NixOS/nixpkgs/nixos-unstable 'legacyPackages.x86_64-linux.python313Packages' --keys | jq .[:5]
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[
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"acompressor",
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"autocrop",
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"autodeint",
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"autoload",
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"autosub",
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]
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```
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59
flake.lock
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flake.lock
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{
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"nodes": {
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"nix-select": {
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"locked": {
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"lastModified": 1739677887,
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"narHash": "sha256-VIGgoWnzXzlwRHfJt3YRNQsRyX1I1dPdVm61hnyKJZo=",
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"ref": "refs/heads/main",
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"rev": "d2aa1f72b6e1ac318f4125d6eebee256bbeb05a3",
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"revCount": 11,
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"type": "git",
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"url": "https://git.clan.lol/clan/nix-select.git"
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},
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"original": {
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"type": "git",
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"url": "https://git.clan.lol/clan/nix-select.git"
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}
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},
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"nixpkgs": {
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"locked": {
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"lastModified": 1739866667,
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"narHash": "sha256-EO1ygNKZlsAC9avfcwHkKGMsmipUk1Uc0TbrEZpkn64=",
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"owner": "NixOS",
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"repo": "nixpkgs",
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"rev": "73cf49b8ad837ade2de76f87eb53fc85ed5d4680",
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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": 1739667890,
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"narHash": "sha256-7QtSNdCEbYG1v+ZVrFWhBkhlo2GWehPffWC0BP1VZSo=",
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"owner": "nix-community",
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"repo": "nixpkgs.lib",
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"rev": "9b883b6d4d3bd580734ddb4b5bfde8ebffd26559",
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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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"nix-select": "nix-select",
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"nixpkgs": "nixpkgs",
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"nixpkgs-lib": "nixpkgs-lib"
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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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44
flake.nix
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flake.nix
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{
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inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
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inputs.nix-select.url = "git+https://git.clan.lol/clan/nix-select.git";
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inputs.nixpkgs-lib.url = "github:nix-community/nixpkgs.lib";
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outputs = inputs:
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let
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forAllSystems = f: inputs.nixpkgs.lib.genAttrs inputs.nixpkgs.lib.systems.flakeExposed (system: f rec {
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inherit system;
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pkgs = inputs.nixpkgs.legacyPackages.${system};
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inherit (pkgs) lib;
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});
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in {
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inherit inputs;
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overlays.default = prev: {
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nixq = prev.callPackage ./package.nix { inherit (inputs) nix-select nixpkgs-lib; };
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};
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packages = forAllSystems ({ pkgs, ... }: rec {
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default = nixq;
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nixq = pkgs.callPackage ./package.nix { inherit (inputs) nix-select nixpkgs-lib; };
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nixq-nix = pkgs.callPackage ./package.nix { inherit (inputs) nix-select nixpkgs-lib; extraRuntimeDeps = [ pkgs.nix ]; };
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nixq-lix = pkgs.callPackage ./package.nix { inherit (inputs) nix-select nixpkgs-lib; extraRuntimeDeps = [ pkgs.lix ]; };
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});
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devShells = forAllSystems ({ lib, pkgs, ... }: rec {
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default = pkgs.mkShellNoCC {
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packages = builtins.attrValues {
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inherit (pkgs)
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lix
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jq
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yq
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bat
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;
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};
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env.NIXQ_NIX_SELECT_PATH = inputs.nix-select.outPath;
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env.NIXQ_NIXPKGS_LIB_PATH = inputs.nixpkgs.outPath;
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env.UV_PYTHON_DOWNLOADS = "never";
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};
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});
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};
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}
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219
nixq.sh
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nixq.sh
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#!/usr/bin/env bash
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set -euo pipefail
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if [ -z "${NIXQ_NIX_SELECT_PATH:-}" ]; then
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>&2 echo "nix-select not found! Please set NIXQ_NIX_SELECT_PATH!"
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fi
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if [ -z "${NIXQ_NIXPKGS_LIB_PATH:-}" ]; then
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>&2 echo "nixpkgs-lib not found! Please set NIXQ_NIXPKGS_LIB_PATH!"
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fi
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die() {
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>&2 echo "ERROR:" "$@"
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exit 1
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}
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print_help() {
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echo "nixq: A nix tool to query elements/lists/attrs from nested list/attrs,"
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echo " using the nix-select library: https://git.clan.lol/clan/nix-select/"
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echo ""
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echo "Usage:"
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echo " $0 [-f] <file> [-q] <query> [-k] [-v] [-D] [-y] [--apply <expr>] ..."
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echo ""
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echo " -f, --file <file> Load a file, typically named default.nix"
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echo " -f, --file <file> Load a file, typically named default.nix"
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echo " [--flake] <file> Load a flake, does not support attributes after '#'"
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echo " [-q, --query] <query> The select query to perform"
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echo " -k, --keys, --names Will '--apply builtins.attrName'"
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echo " -v, --values Will '--apply builtins.attrValue'"
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echo " -t, --try-values Will tryEval the attribute set values"
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# echo " -D, --rename-outPath Rename \"outPath\" keys to \"outPath'\""
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echo " -y, --yaml Output as yaml"
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echo " --raw Output raw"
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echo " --apply <expr> Apply custom expression with nixpkgs 'lib' in scope, can be used multiple times"
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echo " ... Passed on to 'nix eval'"
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# PAGER="" nix --extra-experimental-features "nix-command flakes" eval --help
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}
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nix_str() {
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local out="$1"
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out="${out/\"/\\\"}"
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out="${out/\$/\\\$}"
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printf '"%s"\n' "$out"
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}
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lib_expr="let lib = import $NIXQ_NIXPKGS_LIB_PATH/lib; in"
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if [[ $# -eq 0 ]]; then
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print_help
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exit 0
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fi
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file_expr=""
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query=""
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output_raw=false
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output_yaml=false
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set_file_expr_normal() {
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if [[ -z "${1:-}" ]]; then
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die "No file provided"
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fi
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local path
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if [[ $1 =~ \<[a-zA-Z0-9_-]+\> ]]; then
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path="$1"
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else
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path="$(nix_str "$(realpath "$1")")"
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fi
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file_expr="(let f = import $path; in if builtins.isFunction f then f {} else f)"
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}
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set_file_expr_flake() {
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if [[ -z "${1:-}" ]]; then
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die "No flake provided"
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fi
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file_expr="(builtins.getFlake $(nix_str "$1"))"
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}
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posargs=()
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filtered_args=()
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while [[ "$#" -gt 0 ]]; do
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arg="$1"
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case "$1" in
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-[^-][^-]*)
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shift
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# shellcheck disable=SC2046
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set -- $(echo "${arg:1:99999}" | sed -e 's/\(.\)/ -\1/g') "$@"
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;;
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--help)
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print_help
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exit 0
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;;
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-f | --file)
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shift
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set_file_expr_normal "$1"
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shift
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;;
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--flake)
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shift
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set_file_expr_flake "$1"
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shift
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;;
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-q | --query)
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shift
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query="$1"
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shift
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;;
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-y | --yaml)
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output_yaml=true
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shift
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;;
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--raw)
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output_raw=true
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filtered_args+=("$1")
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shift
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;;
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-k | --keys | --names)
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filtered_args+=("--apply" "builtins.attrNames")
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shift
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;;
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-v | --values)
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filtered_args+=("--apply" "builtins.attrValues")
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shift
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;;
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#-D | --rename-out-path)
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# filtered_args+=("--apply" "$lib_expr lib.mapAttrs' (k: v: { name= { outPath=\"outPath'\"; }.\${k} or k; value = v; })");
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# shift
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# ;;
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-t | --try-values)
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# TODO: figure out how to force the full value
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# filtered_args+=("--apply" "builtins.mapAttrs (k: v: if (builtins.tryEval (builtins.toJSON v == \"\")).success then v else null)");
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filtered_args+=("--apply" "builtins.mapAttrs (k: v: if (builtins.tryEval (v == null)).success then v else null)")
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shift
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;;
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#-d | --max-depth)
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# filtered_args+=("--apply" "");
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# shift
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# ;;
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--apply)
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filtered_args+=("$1")
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shift
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filtered_args+=("$lib_expr $1")
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shift
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;;
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[^-]*)
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posargs+=("$1")
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shift
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;;
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*)
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filtered_args+=("$1")
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shift
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;;
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esac
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done
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for arg in "${posargs[@]}"; do
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if [[ -z "$file_expr" ]]; then
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set_file_expr_flake "$arg"
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elif [[ -z "$query" ]]; then
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query="$arg"
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else
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die "Too many positional arguments!"
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fi
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done
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if [[ -z "$file_expr" ]]; then
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die "No file provided"
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fi
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if [[ -z "$query" ]]; then
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die "No query provided"
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fi
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if ! $output_raw; then
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# TODO: figure out why this is slow
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#filtered_args+=(
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# "--apply"
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# '
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# let
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# mapTree = x:
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# if !(builtins.tryEval (x==null)).success then
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# null
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# else if builtins.isAttrs x then
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# builtins.mapAttrs (k: v: mapTree v) x
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# else if builtins.isList x then
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# builtins.map mapTree x
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# else if builtins.isFunction x then
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# "<lambda>"
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# else
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# x;
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# in mapTree
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# '
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#);
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filtered_args+=(--json)
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fi
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nix_cmd=(
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nix
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--extra-experimental-features "nix-command flakes"
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eval --impure
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--expr "(import $NIXQ_NIX_SELECT_PATH/select.nix).select $(nix_str "$query") $file_expr"
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"${filtered_args[@]}"
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)
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output="$(
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# set -x
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"${nix_cmd[@]}"
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)"
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if $output_raw; then
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cat <<<"$output"
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elif $output_yaml; then
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if [[ -t 1 ]] && >/dev/null command -v bat; then
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yq . -y <<<"$output" | bat --language yaml --style plain --paging never
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else
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yq . -y <<<"$output"
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fi
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elif [[ -t 1 ]] && >/dev/null command -v jq; then
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jq . <<<"$output"
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else
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cat <<<"$output"
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fi
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31
package.nix
Normal file
31
package.nix
Normal file
@ -0,0 +1,31 @@
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{
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writeShellApplication,
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coreutils,
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gnused,
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jq,
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yq,
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bat,
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nix-select ? "",
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nixpkgs-lib ? "",
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extraRuntimeDeps ? [ ],
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}:
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writeShellApplication {
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name = "nixq";
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text = builtins.readFile ./nixq.sh;
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extraShellCheckFlags = [ "--severity" "info" ];
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runtimeInputs = [
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coreutils
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gnused
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jq
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yq
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bat
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] ++ extraRuntimeDeps;
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runtimeEnv = {
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NIXQ_NIX_SELECT_PATH = nix-select;
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NIXQ_NIXPKGS_LIB_PATH = nixpkgs-lib;
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};
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||||
}
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||||
Loading…
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Reference in New Issue
Block a user