packages/piper/default.nix

@@ -8,10 +8,12 @@
 
   releaseVer = elemAt (match "^([^']*).*" (elemAt (splitString "version: '" (readFile "${piper-src}/meson.build")) 1)) 0;
 in
-  piper.overridePythonAttrs {
+  piper.overrideAttrs rec {
     pname = "piper";
     version = "${releaseVer}+${piper-src.shortRev}";
 
+    name = "${pname}-${version}";
+
     src = piper-src;
 
     mesonFlags = [

packages/repl/default.nix

@@ -2,40 +2,25 @@
 {
   coreutils,
   gnused,
-  ncurses,
+  writeShellScriptBin,
-  writeShellApplication,
   ...
 }: let
   repl = ./repl.nix;
-  example = command: desc: ''\n$(tput setaf 3) ${command}$(tput sgr0) - ${desc}'';
+  example = command: desc: ''\n\u001b[33m ${command}\u001b[0m - ${desc}'';
 in
-  writeShellApplication {
+  writeShellScriptBin "repl" ''
-    name = "repl";
+    case "$1" in
-
-    runtimeInputs = [coreutils gnused ncurses];
-
-    text = ''
-      arg=''${1:-"."}
-
-      case "$arg" in
       "-h"|"--help"|"help")
-              # shellcheck disable=SC2059
+        printf "%b\n\e[4mUsage\e[0m: \
-              printf "\n\e[4mUsage\e[0m: \
+          ${example "repl" "Loads system flake if available."} \
-                  ${example "repl             " "Loads system flake present at $(tput setaf 4)\\$FLAKE$(tput sgr0)."} \
+          ${example "repl /path/to/flake.nix" "Loads specified flake."}\n"
-                  ${example "repl <flake path>" "Loads specified flake."}\n"
       ;;
-
       *)
-              if [ -z "$arg" ]; then
+        if [ -z "$1" ]; then
-                  nix repl \
+          nix repl --arg flakePath $(${coreutils}/bin/readlink -f "$FLAKE") --file ${repl}
-                      --arg flakePath "$(realpath "$FLAKE")" \
-                      --file ${repl}
         else
-                  nix repl \
+          nix repl --arg flakePath $(${coreutils}/bin/readlink -f $1 | ${gnused}/bin/sed 's|/flake.nix||') --file ${repl}
-                      --arg flakePath "$(realpath "$arg" | sed 's|/flake.nix||')" \
-                      --file ${repl}
         fi
       ;;
     esac
-    '';
+  ''
-  }

packages/repl/repl.nix

@@ -1,31 +1,49 @@
 {
-  flakePath,
+  flakePath ? null,
   hostnamePath ? "/etc/hostname",
+  registryPath ? /etc/nix/registry.json,
 }: let
-  inherit (builtins) currentSystem getFlake head match pathExists readFile removeAttrs;
+  inherit (builtins) getFlake head match currentSystem readFile pathExists filter fromJSON;
 
+  selfFlake =
+    if pathExists registryPath
+    then filter (it: it.from.id == "self") (fromJSON (readFile registryPath)).flakes
+    else [];
+
+  flakePath' =
+    toString
+    (
+      if flakePath != null
+      then flakePath
+      else if selfFlake != []
+      then (head selfFlake).to.path
+      else "/etc/nixos"
+    );
+
+  flake =
+    if pathExists flakePath'
+    then getFlake flakePath'
+    else {};
   hostname =
     if pathExists hostnamePath
     then head (match "([a-zA-Z0-9\\-]+)\n" (readFile hostnamePath))
     else "";
 
-  self =
+  nixpkgsFromInputsPath = flake.inputs.nixpkgs.outPath or "";
-    if pathExists flakePath
+  nixpkgs =
-    then
+    flake.pkgs.${currentSystem}.nixpkgs
-      removeAttrs (getFlake (toString flakePath)) [
+    or (
-        # If you use flakegen, these take a lot of space
+      if nixpkgsFromInputsPath != ""
-        "nextFlake"
+      then import nixpkgsFromInputsPath {}
-        "nextFlakeSource"
+      else {}
-      ]
+    );
-    else {};
 
-  pkgs = self.inputs.nixpkgs.legacyPackages.${currentSystem} or {};
+  nixpkgsOutput = removeAttrs (nixpkgs // nixpkgs.lib or {}) ["options" "config"];
-  lib =
-    if pkgs != {}
-    then {inherit (pkgs) lib;}
-    else {};
 in
-  {inherit lib pkgs self;}
+  {inherit flake;}
-  // self.nixosConfigurations.${hostname}
+  // flake
-  or self.nixOnDroidConfigurations.default
+  // builtins
-  or {}
+  // (flake.nixosConfigurations or {})
+  // flake.nixosConfigurations.${hostname} or {}
+  // nixpkgsOutput
+  // {getFlake = path: getFlake (toString path);}