2022-08-12

1 files changed, 82 insertions, 0 deletions

diff --git a/packages/nixfiles.nix b/packages/nixfiles.nix
new file mode 100644
index 0000000..90a5865
--- /dev/null
+++ b/packages/nixfiles.nix
@@ -0,0 +1,82 @@
+{
+  git,
+  jq,
+  lib,
+  nix,
+  nixfilesSrc ? "$HOME/src/nixfiles",
+  openssh,
+  writeShellApplication,
+}:
+writeShellApplication {
+  name = "nixfiles";
+  runtimeInputs = [git jq nix openssh];
+  text = ''
+    nixfiles=${lib.escapeShellArg nixfilesSrc}
+    cmd="$1"
+    shift
+    case $cmd in
+    update)
+      if (( $# )); then
+        args=()
+        for input do args+=(--update-input "$input"); done
+        exec nix flake lock "$nixfiles" "''${args[@]}"
+      else
+        exec nix flake update -v "$nixfiles"
+      fi
+      ;;
+    rev)
+      nix flake metadata --json nixfiles |
+        if (( $# )); then
+          jq -r --arg input "$1" '.locks.nodes[$input].locked.rev'
+        else
+          jq -r '.revision // "dirty"'
+        fi
+      ;;
+    repl|eval|build)
+      args=()
+      for arg do case $arg in
+        -w|--wip) args+=(--override-flake config "$nixfiles")
+        ;;
+        *) args+=("$arg")
+      esac done
+      set -- "''${args[@]}"
+      ;;&
+    repl)
+      exec nix repl ~/.nix-defexpr "$@"
+      ;;
+    eval)
+      exec nix eval -f ~/.nix-defexpr --json "$@" | jq -r .
+      ;;
+    build)
+      exec nix build -f ~/.nix-defexpr --json "$@" | jq -r .
+      ;;
+    home)
+      attr="nixosConfigurations.$HOSTNAME.config.hm.home.activationPackage"
+      export VERBOSE=1
+      exec nix shell --verbose "$nixfiles#$attr" "$@" --command home-manager-generation
+      ;;
+    specialise)
+      name=$1
+      shift
+      exec sudo /run/current-system/specialisation/"$name"/bin/switch-to-configuration switch
+      ;;
+    revert)
+      exec sudo /nix/var/nix/profiles/system/bin/switch-to-configuration switch
+      ;;
+    test-headless)
+      exec nixos-rebuild build-vm --verbose --print-build-logs --flake "$nixfiles#test-headless" "$@"
+      ;;
+    test-headful)
+      exec nixos-rebuild build-vm --verbose --print-build-logs --flake "$nixfiles#test-headful" "$@"
+      ;;
+    @*)
+      host="''${cmd#@}"
+      hostname="$(ssh -q "$host" 'echo "$HOSTNAME"')"
+      exec nixos-rebuild -v --flake "$nixfiles#$hostname" --target-host "$host" --use-remote-sudo "$@"
+      ;;
+    *)
+      exec nixos-rebuild -v --flake "$nixfiles" --use-remote-sudo "$cmd" "$@"
+      ;;
+    esac
+  '';
+}