Evolving, not working

build.tools.nix

@@ -1,10 +1,9 @@
 { lib, stdenv, build-tools-src, clojure, callPackage, writeText
-, writeShellScript, gitignoreSource, jre, ... }:
+, writeShellScript, gitignoreSource, jre, version, ... }:
 
 with lib;
 let
   base-name = "clojure-build-tools";
-  version = "0.8.2";
   full-name = "${base-name}-${version}.jar";
   cljdeps = callPackage ./deps.nix { };
   tools-classpath = cljdeps.makeClasspaths { };
@@ -21,8 +20,7 @@ let
   java-compile = classpath: ns:
     ''java -cp .:${classpath} clojure.main -e "(compile ${ns})"'';
   head-or-null = lst: if (lst == [ ]) then null else head lst;
-  matches-ext = ext: filename: type:
-    (builtins.match ".+[.]${ext}$" filename) != null;
+  matches-ext = ext: filename: (builtins.match ".+[.]${ext}$" filename) != null;
   strip-ext = ext: filename:
     head-or-null (builtins.match "(.+)[.]${ext}$" filename);
   ext-files = ext: path:
@@ -33,7 +31,32 @@ let
   task-namespaces = map (ns: "'clojure.tools.build.tasks.${ns}") tasks;
   all-namespaces = task-namespaces ++ [ "'clojure.tools.build.api" ];
 
+  file-to-namespace = base: filename:
+    let
+      swap-chars = replaceStrings [ "_" "/" ] [ "-" "." ];
+      strip-clj = strip-ext "clj";
+      strip-base = replaceStrings [ "${base}/" ] [ "" ];
+      ns = swap-chars (strip-base (strip-clj (toString filename)));
+    in "'${ns}";
+
+  concatMapAttrs = f: attrs: concatLists (mapAttrsToList f attrs);
+
+  find-files = pred: path:
+    let
+      find-files-impl = base:
+        concatMapAttrs (handle-file base) (builtins.readDir base);
+      handle-file = base: name: type:
+        if (type == "directory") then
+          find-files-impl "${base}/${name}"
+        else
+          (if (pred name) then [ "${base}/${name}" ] else [ ]);
+    in find-files-impl path;
+
+  tools-namespaces = let base = "${build-tools-src}/src/main/clojure";
+  in map (file-to-namespace base) (find-files (matches-ext "clj") base);
+
 in stdenv.mkDerivation {
+
   name = full-name;
   src = gitignoreSource "${build-tools-src}/src/main/clojure";
   nativeBuildInputs = [ jre ];
@@ -45,8 +68,25 @@ in stdenv.mkDerivation {
       cp ${./src}/build.clj .
       ${concatStringsSep "\n" (map extract-jar dep-jars)}
       ${concatStringsSep "\n"
-      (map (java-compile tools-classpath) (all-namespaces ++ [ "'build" ]))}
-      jar cmf ${manifest} ./out.jar -C . cljs cognitect com javax mozilla plugin.xml about.html clojure cognitect_aws_http.edn data_readers.cljc licenses org
+      (map (java-compile tools-classpath) (tools-namespaces ++ [ "'build" ]))}
+      jar cmf ${manifest} ./out.jar -C . ${
+        concatStringsSep " " [
+          "build"
+          "cljs"
+          "cognitect"
+          "com"
+          "javax"
+          "mozilla"
+          "plugin.xml"
+          "about.html"
+          "clojure"
+          "cognitect_aws_http.edn"
+          "data_readers.cljc"
+          "licenses"
+          "org"
+        ]
+      }
+      cat /tmp/*.edn
     '';
   in "${build-script}";
 

flake.nix

@@ -22,6 +22,7 @@
       system = "x86_64-linux";
       pkgs = nixpkgs.legacyPackages."${system}";
       build-tools-jar = pkgs.callPackage ./build.tools.nix {
+        version = "0.8.2";
         inherit build-tools-src;
         inherit (gitignore.lib) gitignoreSource;
       };

mkClojureLib.nix

@@ -42,7 +42,7 @@ in stdenv.mkDerivation {
   nativeBuildInputs = [ clojure jre ];
   buildInputs = (map (x: x.paths) clj-deps.packages);
 
-  buildPhase = builtins.trace "${build-script}" "${build-script}";
+  buildPhase = "${build-script}";
 
   installPhase = ''
     mv ${target}/${name}-${version}-standalone.jar $out