zed-editor: fix license menu

Without the generated licenses file, Zed crashes when triggering the "View Dependency licenses" menu button.

pkgs/by-name/ze/zed-editor/0001-generate-licenses.patch

@@ -0,0 +1,17 @@
+diff --git a/script/generate-licenses b/script/generate-licenses
+index 43b2f5c458..c740a3afa2 100755
+--- a/script/generate-licenses
++++ b/script/generate-licenses
+@@ -15,12 +15,6 @@ cat assets/icons/LICENSES >> $OUTPUT_FILE
+ 
+ echo -e "# ###### CODE LICENSES ######\n" >> $OUTPUT_FILE
+ 
+-if ! cargo install --list | grep "cargo-about v$CARGO_ABOUT_VERSION" > /dev/null; then
+-  echo "Installing cargo-about@$CARGO_ABOUT_VERSION..."
+-  cargo install "cargo-about@$CARGO_ABOUT_VERSION"
+-else
+-  echo "cargo-about@$CARGO_ABOUT_VERSION is already installed."
+-fi
+ 
+ echo "Generating cargo licenses"
+ cargo about generate --fail -c script/licenses/zed-licenses.toml script/licenses/template.hbs.md >> $OUTPUT_FILE

pkgs/by-name/ze/zed-editor/package.nix

@@ -27,6 +27,7 @@
   vulkan-loader,
   envsubst,
   nix-update-script,
+  cargo-about,
 
   withGLES ? false,
 }:
@@ -45,6 +46,12 @@ rustPlatform.buildRustPackage rec {
     fetchSubmodules = true;
   };
 
+  patches = [
+    # Zed uses cargo-install to install cargo-about during the script execution.
+    # We provide cargo-about ourselves and can skip this step.
+    ./0001-generate-licenses.patch
+  ];
+
   cargoLock = {
     lockFile = ./Cargo.lock;
     outputHashes = {
@@ -73,6 +80,7 @@ rustPlatform.buildRustPackage rec {
     pkg-config
     protobuf
     rustPlatform.bindgenHook
+    cargo-about
   ] ++ lib.optionals stdenv.isDarwin [ xcbuild.xcrun ];
 
   buildInputs =
@@ -133,6 +141,10 @@ rustPlatform.buildRustPackage rec {
   RUSTFLAGS = if withGLES then "--cfg gles" else "";
   gpu-lib = if withGLES then libglvnd else vulkan-loader;
 
+  preBuild = ''
+    bash script/generate-licenses
+  '';
+
   postFixup = lib.optionalString stdenv.isLinux ''
     patchelf --add-rpath ${gpu-lib}/lib $out/libexec/*
     patchelf --add-rpath ${wayland}/lib $out/libexec/*