chore: add minimal compilation

Cargo.toml

@@ -10,6 +10,17 @@ readme = "README.md"
 repository = "https://github.com/fioncat/csync"
 description = "Share your clipboard between different devices"
 
+[features]
+# On some machines, particularly those running only server applications without a graphical
+# interface environment, users need to install libwebkit to run csync, even though this
+# library will never be used (as these machines won't utilize the tray functionality).
+# Therefore, we provide a minimal compilation option that excludes GUI-related code from
+# csync, resulting in a minimized version suitable for running on servers without GUI
+# tools (tray).
+# Minimal compilation: cargo build --release --locked --no-default-features
+default = ["tray"]
+tray = ["dep:tauri", "dep:tauri-plugin-shell", "dep:tauri-build"]
+
 [dependencies]
 actix-web = { version = "4.9", features = ["openssl"] }
 aes-gcm = "0.10"
@@ -36,8 +47,8 @@ serde = {version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 sha2 = "0.10"
 shellexpand = "3.1"
-tauri = { version = "2.2", features = ["tray-icon"] }
-tauri-plugin-shell = "2.2"
+tauri = { version = "2.2", features = ["tray-icon"], optional = true }
+tauri-plugin-shell = { version = "2.2", optional = true }
 thiserror = "2.0"
 tokio = { version = "1.43", features = ["full"] }
 toml = "0.8"
@@ -47,7 +58,7 @@ once_cell = "1.20"
 
 [build-dependencies]
 simple-error = "0.3"
-tauri-build = { version = "2.0", features = [] }
+tauri-build = { version = "2.0", features = [], optional = true }
 vergen = { version = "9.0", features = ["build", "rustc", "cargo", "si"] }
 
 [profile.release]

build.rs

@@ -76,6 +76,7 @@ fn main() -> Result<(), Box<dyn Error>> {
         env::var("TARGET").unwrap()
     );
 
+    #[cfg(feature = "tray")]
     tauri_build::build();
 
     Ok(())

src/cmd/mod.rs

@@ -7,6 +7,7 @@ mod get;
 mod put;
 mod read;
 mod server;
+#[cfg(feature = "tray")]
 mod tray;
 mod version;
 mod whoami;
@@ -41,6 +42,7 @@ pub enum Commands {
     Whoami(whoami::WhoamiArgs),
     Cani(cani::CaniArgs),
     Version(version::VersionArgs),
+    #[cfg(feature = "tray")]
     Tray(tray::TrayArgs),
 
     Server(server::ServerArgs),
@@ -60,6 +62,7 @@ impl RunCommand for App {
             Commands::Whoami(args) => args.run().await,
             Commands::Cani(args) => args.run().await,
             Commands::Version(args) => args.run().await,
+            #[cfg(feature = "tray")]
             Commands::Tray(args) => args.run().await,
 
             Commands::Server(_) => unreachable!(),

src/main.rs

@@ -14,6 +14,7 @@ mod secret;
 mod server;
 mod table;
 mod time;
+#[cfg(feature = "tray")]
 mod tray;
 mod types;