Allow injecting bootstrap again, plus some additions to version

default.nix

@@ -1,5 +1,3 @@
-# TODO
-# - allow injecting a bootstrap file
 {
 
   buildSystem ? builtins.currentSystem,
@@ -8,6 +6,8 @@
   revision ? "",
   releaseName ? "debug",
 
+  bootstrap ? null,
+
 }: let
 
   pkgsNix = (import ./nix/pkgs.nix);
@@ -23,15 +23,16 @@ in rec {
   version = pkgs.stdenv.mkDerivation {
     name = "cryptic-net-version";
 
-    inherit revision hostSystem releaseName;
+    inherit buildSystem revision releaseName;
     repoSrc = ./.;
 
     nativeBuildInputs = [ pkgs.git ];
 
-    # TODO it'd be nice to be able to call `go version`, but that doesn't work
-    # when crossSystem is being used for some unknown reason.
     goVersion = pkgs.go.version;
     garageVersion = garageNix.version;
+    nixpkgsVersion = pkgsNix.version;
+
+    release = "${releaseName}-${hostSystem}";
 
     builder = builtins.toFile "builder.sh" ''
       source $stdenv/setup
@@ -43,11 +44,12 @@ in rec {
         revision="$(cd repoSrcCp && git rev-parse HEAD)"
       fi
 
-      echo "Release         $releaseName"   >> "$versionFile"
-      echo "System:         $hostSystem"    >> "$versionFile"
-      echo "Git Revision:   $revision"      >> "$versionFile"
-      echo "Go Version:     $goVersion"     >> "$versionFile"
-      echo "Garage Version: $garageVersion" >> "$versionFile"
+      echo "Release          $release"        >> "$versionFile"
+      echo "Git Revision:    $revision"       >> "$versionFile"
+      echo "Go Version:      $goVersion"      >> "$versionFile"
+      echo "Garage Version:  $garageVersion"  >> "$versionFile"
+      echo "NixPkgs Version: $nixpkgsVersion" >> "$versionFile"
+      echo "Build Platform:  $buildSystem"    >> "$versionFile"
 
       mkdir -p "$out"/share
       cp "$versionFile" "$out"/share
@@ -74,6 +76,18 @@ in rec {
 
   };
 
+  rootedBootstrap = pkgs.stdenv.mkDerivation {
+    name = "cryptic-net-rooted-bootstrap";
+
+    src = bootstrap;
+
+    builder = builtins.toFile "builder.sh" ''
+      source $stdenv/setup
+      mkdir -p "$out"/share
+      cp "$src" "$out"/share/bootstrap.yml
+    '';
+  };
+
   appDir = pkgs.buildEnv {
     name = "cryptic-net-AppDir";
     paths = [
@@ -86,7 +100,7 @@ in rec {
       pkgs.minio-client
       entrypoint
 
-    ];
+    ] ++ (if bootstrap != null then [ rootedBootstrap ] else []);
   };
 
   appimagetool = pkgs.callPackage ./nix/appimagetool.nix {};