Update README

README.asciidoc

@@ -77,13 +77,13 @@ group.number = ["integer_literal", "float_literal", "negative_literal"]
 
 If you are using nix, the `flake.nix` file provides an attribute `packages.kak-tree` resolving to a kakoune plugin one can use in home-manager's `programs.kakoune.plugins` or build yourself with `kakoune.override { plugins = ... }`.
 
-If not, you will have to set up the build environment yourself. Since we use static linking, compile each tree sitter plugin to a statically linked library to `lib/libtree-sitter-LANG.a`, and then build:
+If not, you will have to set up the build environment yourself. Since we use static linking, compile each tree sitter plugin to a statically linked library to `./sitters/libtree-sitter-LANG.a`, and then build:
 
 ```sh
 $ [ compile tree sitter for i.e. javascript... ]
-$ ls lib
+$ ls sitters
 libtree-sitter-javascript.a
-$ cargo build --no-default-features --features javascript --release
+$ SITTERS=./sitters cargo build --no-default-features --features javascript --release
 [ ... ]
 $ ./target/release/kak-tree --do-you-understand javascript
 Known language. Trying to load

build.rs

@@ -1,5 +1,5 @@
 fn main() {
-    println!("cargo:rustc-link-search=native=lib");
+    println!("cargo:rustc-link-search=native={}", env!("SITTERS"));
     for lang in &[
         #[cfg(feature = "bash")]
         "bash",

flake.nix

@@ -9,7 +9,9 @@
 
   outputs = { self, nixpkgs, flake-utils, rust-overlay, tree-sitters }:
     flake-utils.lib.eachDefaultSystem (sys:
-      let pkgs = import nixpkgs {
+      let enabledSitters = ["bash" "c" "python" "rust" "nix" "agda" "html" "javascript"];
+
+          pkgs = import nixpkgs {
             system = sys;
             overlays = [ (import rust-overlay) ];
           };
@@ -20,25 +22,25 @@
             rustc = rust;
             cargo = rust;
           };
-          sitters = tree-sitters.packages.${sys};
-          sitterlist = [
-            sitters.bash sitters.c sitters.python sitters.rust sitters.nix sitters.agda sitters.html sitters.javascript
-          ];
+
+          sitterlist = map (lang: tree-sitters.packages.${sys}.${lang}) enabledSitters;
+
+          sitters = pkgs.runCommand "sitters" {inherit sitterlist;} ''
+            mkdir -p $out
+            for sitter in $sitterlist ; do
+              echo "Copying $sitter"
+              cp $sitter/lib/*.a $out
+            done
+          '';
 
           kak-tree-bin = platform.buildRustPackage {
             name = "kak-tree-bin";
             src = ./.;
             cargoLock = { lockFile = ./Cargo.lock; };
-            buildFeatures = ["bash" "c" "python" "rust" "nix" "agda" "html" "javascript"];
-            inherit sitterlist;
-            preBuild = ''
-              mkdir lib
-              for sitter in $sitterlist ; do
-                echo "Copying $sitter"
-                cp $sitter/lib/* lib
-              done
-            '';
+            buildFeatures = enabledSitters;
             doCheck = false;
+
+            SITTERS = sitters;
           };
 
       in rec {
@@ -58,6 +60,9 @@
         };
         devShells.default = pkgs.mkShell {
           packages = [ rust ];
+          shellHook = ''
+            export SITTERS="${sitters}"
+          '';
         };
       }
     );