Merge pull request #138151 from figsoda/difftastic

difftastic: use existing tree-sitter grammars when possible, bump version

pkgs/tools/text/difftastic/default.nix

@@ -1,23 +1,34 @@
-{ lib, fetchFromGitHub, rustPlatform }:
+{ lib, fetchFromGitHub, rustPlatform, tree-sitter }:
 
 rustPlatform.buildRustPackage rec {
   pname = "difftastic";
-  version = "0.8";
+  version = "0.9";
 
   src = fetchFromGitHub {
     owner = "wilfred";
     repo = pname;
     rev = version;
-    sha256 = "0103py4v4v7xqv85yiczhd9w9h1aa54svhhdibvbl6x4b35y2mk5";
+    sha256 = "sha256-spncRJjROytGnIig6ujqHu0e/XBTN4dsJ3og4aIu+l8=";
   };
 
-  cargoSha256 = "1k0d7yadicfzfc2m1aqs4c4a2k3srb54fpwarc3kwn26v3vfjai1";
+  cargoSha256 = "sha256-2xGwS4wjLQ7zmfZ2gMdlUAkjPDF6SmUaiX2j1KYy0vo=";
+
+  postPatch = ''
+    pushd vendor
+    for grammar in */; do
+      if [ -d "${tree-sitter.grammars}/$grammar" ]; then
+        rm -r "$grammar"
+        ln -s "${tree-sitter.grammars}/$grammar"
+      fi
+    done
+    popd
+  '';
 
   meta = with lib; {
     description = "A syntax-aware diff";
     homepage = "https://github.com/Wilfred/difftastic";
     changelog = "https://github.com/Wilfred/difftastic/raw/${version}/CHANGELOG.md";
     license = licenses.mit;
-    maintainers = with maintainers; [ ethancedwards8 ];
+    maintainers = with maintainers; [ ethancedwards8 figsoda ];
   };
 }