Reimplement notice file generation for third-party licenses through Rust, now with CEF credits (#3808)

desktop/Cargo.toml

@@ -44,8 +44,9 @@ vello = { workspace = true }
 derivative = { workspace = true }
 rfd = { workspace = true }
 open = { workspace = true }
-rand = { workspace = true, features = ["thread_rng"] }
+lzma-rust2 = { workspace = true }
 serde = { workspace = true }
+rand = { workspace = true, features = ["thread_rng"] }
 clap = { workspace = true, features = ["derive"] }
 fd-lock = "4.0.4"
 ctrlc = "3.5.1"

desktop/src/app.rs

@@ -1,6 +1,7 @@
 use rand::Rng;
 use rfd::AsyncFileDialog;
 use std::fs;
+use std::io::Read;
 use std::sync::Arc;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::mpsc::{Receiver, Sender, SyncSender};
@@ -416,6 +417,18 @@ impl App {
 			DesktopFrontendMessage::Restart => {
 				self.exit(Some(ExitReason::Restart));
 			}
+			DesktopFrontendMessage::LoadThirdPartyLicenses => {
+				let compressed = include_bytes!(concat!(env!("CARGO_MANIFEST_DIR"), "/third-party-licenses.txt.xz"));
+				let mut reader = lzma_rust2::XzReader::new(compressed.as_slice(), false);
+				let mut text = String::new();
+				if let Err(e) = reader.read_to_string(&mut text) {
+					tracing::error!("Failed to decompress third-party licenses: {e}");
+					return;
+				}
+
+				let message = DesktopWrapperMessage::LoadThirdPartyLicenses { text };
+				responses.push(message);
+			}
 		}
 	}
 

desktop/wrapper/src/handle_desktop_wrapper_message.rs

@@ -97,5 +97,9 @@ pub(super) fn handle_desktop_wrapper_message(dispatcher: &mut DesktopWrapperMess
 			let message = AppWindowMessage::PointerLockMove { x, y };
 			dispatcher.queue_editor_message(message);
 		}
+		DesktopWrapperMessage::LoadThirdPartyLicenses { text } => {
+			let message = DialogMessage::RequestLicensesThirdPartyDialogWithLicenseText { license_text: text };
+			dispatcher.queue_editor_message(message);
+		}
 	}
 }

desktop/wrapper/src/intercept_frontend_message.rs

@@ -154,6 +154,9 @@ pub(super) fn intercept_frontend_message(dispatcher: &mut DesktopWrapperMessageD
 		FrontendMessage::WindowRestart => {
 			dispatcher.respond(DesktopFrontendMessage::Restart);
 		}
+		FrontendMessage::TriggerDisplayThirdPartyLicensesDialog => {
+			dispatcher.respond(DesktopFrontendMessage::LoadThirdPartyLicenses);
+		}
 		m => return Some(m),
 	}
 	None

desktop/wrapper/src/messages.rs

@@ -75,6 +75,7 @@ pub enum DesktopFrontendMessage {
 	WindowHideOthers,
 	WindowShowAll,
 	Restart,
+	LoadThirdPartyLicenses,
 }
 
 pub enum DesktopWrapperMessage {
@@ -126,6 +127,9 @@ pub enum DesktopWrapperMessage {
 		x: f64,
 		y: f64,
 	},
+	LoadThirdPartyLicenses {
+		text: String,
+	},
 }
 
 #[derive(Clone, serde::Serialize, serde::Deserialize, Debug)]