wip!

Signed-off-by: Christoph Heiss <christoph@c8h4.io>

flake.nix

@@ -125,11 +125,34 @@
             chmod +x .git/hooks/pre-commit
           '';
         };
+
+        updatePackages = pkgs.writeShellApplication {
+          name = "update-packages";
+          runtimeInputs = with pkgs; [ nix git jq ];
+          text = ''
+            update-and-commit() {
+              local old_ver new_ver changes
+
+              # shellcheck disable=SC2046
+              read -r old_ver new_ver <<<$(./pkgs/update.sh)
+
+              changes="$(git diff-index HEAD "pkgs/$1")"
+              if [ -n "$changes" ]; then
+                git add "pkgs/$1"
+                git commit --verbose --signoff --message "pkgs: $1: $old_ver -> $new_ver"
+              fi
+            }
+
+            update-and-commit dashboard-icons
+            update-and-commit homer
+          '';
+        };
       in {
         apps = (nixinate.nixinate.${system} self).nixinate // {
           maui = mkApp { drv = mkHomeManagerFlake "maui"; };
           check-git-history = mkApp { drv = checkGitHistory; };
           setup-git-hooks = mkApp { drv = setupGitHooks; };
+          update-packages = mkApp { drv = updatePackages; };
         };
 
         checks = {

pkgs/dashboard-icons/default.nix

@@ -1,14 +1,14 @@
 { stdenvNoCC, fetchFromGitHub }:
 
-let upstreamCommit = "acf4a4ddd9354335bbb6995175179122f5845607";
+let rev = "acf4a4ddd9354335bbb6995175179122f5845607";
 in stdenvNoCC.mkDerivation rec {
   pname = "dashboard-icons";
-  version = "unstable-2024-03-24-${upstreamCommit}";
+  version = "unstable-2024-03-24-${rev}";
 
   src = fetchFromGitHub {
     owner = "walkxcode";
     repo = pname;
-    rev = upstreamCommit;
+    inherit rev;
     hash = "sha256-4D98y396Kbe3iWv3Xi/URHruPmDUxmxd2yPZ2gkxwow=";
   };
 

pkgs/default.nix

@@ -2,7 +2,7 @@ _: super:
 
 {
   automation-shell = super.callPackage ./automation-shell.nix { };
-  dashboard-icons = super.callPackage ./dashboard-icons.nix { };
+  dashboard-icons = super.callPackage ./dashboard-icons { };
   deploy-sink = super.callPackage ./deploy-sink.nix { };
   git-multi-shortlog = super.callPackage ./git-multi-shortlog.nix { };
   homer = super.callPackage ./homer { };

pkgs/update.sh

@@ -0,0 +1,75 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p curl nix-prefetch-github jq gnused gnutar gzip nodejs prefetch-npm-deps nix
+# shellcheck shell=bash
+
+set -e
+set -u
+set -o pipefail
+
+cd "$(dirname "${BASH_SOURCE[0]}")" || exit 1
+
+get-pkg-attr() {
+  local expr
+  expr="let pkgs = import <nixpkgs> { }; in (import ./.. null pkgs).$1.$2"
+  nix-instantiate --eval --strict --expr "$expr" | jq -r
+}
+
+if ! grep -q fetchFromGitHub "$pkgdir/default.nix"; then
+  exit 1
+fi
+
+pkgdir=$PWD
+name="$(basename "$pkgdir")"
+
+owner="$(get-pkg-attr .. "$name" src.owner)"
+repo="$(get-pkg-attr .. "$name" src.repo)"
+
+update-version() {
+  sed -i "s/version = \"[0-9.]*\";/version = \"$1\";/g" "$pkgdir/default.nix"
+}
+
+update-hash() {
+  local hash
+  hash=$(nix-prefetch-github --fetch-submodules --rev "$1" "$owner" "$repo" | jq -r .hash)
+  sed -i "s|hash = \"[a-zA-Z0-9\/+-=]*\";|hash = \"$hash\";|g" "$pkgdir/default.nix"
+}
+
+update-package-lock() {
+  local tarball
+  tarball="$(get-pkg-attr .. "$name" src.url)"
+
+  pushd "$(mktemp -d)" || exit 1
+  curl -L -O "$tarball"
+  tar -xvf "$(basename "$tarball")"
+
+  cd "$name-$1"
+  npm install --package-lock-only
+  cp -v ./package-lock.json "$pkgdir/package-lock.json"
+  cat ./package-lock.json
+
+  popd
+}
+
+update-npm-deps-hash() {
+  local hash
+  hash=$(prefetch-npm-deps ./package-lock.json)
+  sed -i "s|npmDepsHash = \"[a-zA-Z0-9\/+-=]*\";|npmDepsHash = \"$hash\";|g" "$pkgdir/default.nix"
+}
+
+latest_tag="$(curl -s "https://api.github.com/repos/$owner/$repo/releases/latest" | jq -r ".tag_name")"
+latest_ver="$(expr "$latest_tag" : 'v\(.*\)')"
+current_ver="$(get-pkg-attr .. "$name" version)"
+
+if [[ "$latest_ver" == "$current_ver" ]]; then
+  echo "nothing to do"
+  exit 0
+fi
+
+update-version "$latest_ver"
+update-hash "$latest_tag"
+
+if [[ -f "$pkgdir/package-lock.json" ]]; then
+  latest_ver="$(get-pkg-attr .. "$name" version)"
+  update-package-lock "$latest_ver"
+  update-npm-deps-hash
+fi