Make all modules feature-gated to improve compile time

Cargo.lock

@@ -1031,14 +1031,12 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 name = "lb"
 version = "0.0.1"
 dependencies = [
- "camino",
  "derive_more",
  "luaffi",
  "luajit",
  "sysexits",
  "thiserror",
  "tokio",
- "tracing",
 ]
 
 [[package]]
@@ -1103,16 +1101,6 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "241eaef5fd12c88705a01fc1066c48c4b36e0dd4377dcdc7ec3942cea7a69956"
 
-[[package]]
-name = "lock_api"
-version = "0.4.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96936507f153605bddfcda068dd804796c84324ed2510809e5b2a624c81da765"
-dependencies = [
- "autocfg",
- "scopeguard",
-]
-
 [[package]]
 name = "log"
 version = "0.4.27"
@@ -1326,29 +1314,6 @@ version = "4.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "48dd4f4a2c8405440fd0462561f0e5806bd0f77e86f51c761481bdd4018b545e"
 
-[[package]]
-name = "parking_lot"
-version = "0.12.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70d58bf43669b5795d1576d0641cfb6fbb2057bf629506267a92807158584a13"
-dependencies = [
- "lock_api",
- "parking_lot_core",
-]
-
-[[package]]
-name = "parking_lot_core"
-version = "0.9.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc838d2a56b5b1a6c25f55575dfc605fabb63bb2365f6c2353ef9159aa69e4a5"
-dependencies = [
- "cfg-if",
- "libc",
- "redox_syscall",
- "smallvec",
- "windows-targets 0.52.6",
-]
-
 [[package]]
 name = "percent-encoding"
 version = "2.3.1"
@@ -1523,15 +1488,6 @@ dependencies = [
  "getrandom 0.2.16",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.5.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d04b7d0ee6b4a0207a0a7adb104d23ecb0b47d6beae7152d0fa34b692b29fd6"
-dependencies = [
- "bitflags",
-]
-
 [[package]]
 name = "regex"
 version = "1.11.1"
@@ -1622,12 +1578,6 @@ version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
 
-[[package]]
-name = "scopeguard"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
-
 [[package]]
 name = "semver"
 version = "1.0.26"
@@ -1684,15 +1634,6 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
-[[package]]
-name = "signal-hook-registry"
-version = "1.4.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9203b8055f63a2a00e2f593bb0510367fe707d7ff1e5c872de2f537b339e5410"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "simdutf8"
 version = "0.1.5"
@@ -1849,9 +1790,7 @@ dependencies = [
  "bytes",
  "libc",
  "mio",
- "parking_lot",
  "pin-project-lite",
- "signal-hook-registry",
  "socket2",
  "tokio-macros",
  "tracing",

Cargo.toml

@@ -30,17 +30,24 @@ repository.workspace = true
 dev.panic = "abort"
 release.panic = "abort"
 
+[features]
+default = ["task", "fs", "net"]
+task = ["lb/task"]
+fs = ["lb/fs"]
+net = ["lb/net"]
+tokio-console = ["dep:console-subscriber"]
+
 [dependencies]
 clap = { version = "4.5.40", features = ["derive", "env"] }
-console-subscriber = "0.4.1"
+console-subscriber = { version = "0.4.1", optional = true }
 lb = { path = "crates/lb" }
 luajit = { path = "crates/luajit", features = ["runtime"] }
 mimalloc = "0.1.47"
 owo-colors = "4.2.1"
 sysexits = "0.9.0"
-tokio = { version = "1.45.1", features = ["full", "tracing"] }
+tokio = { version = "1.45.1", features = ["rt", "rt-multi-thread"] }
 tracing = "0.1.41"
-tracing-subscriber = "0.3.19"
+tracing-subscriber = { version = "0.3.19", features = ["env-filter"] }
 
 [build-dependencies]
 vergen-git2 = { version = "1.0.7", features = ["cargo", "rustc"] }

crates/lb/Cargo.toml

@@ -7,12 +7,15 @@ authors.workspace = true
 homepage.workspace = true
 repository.workspace = true
 
+[features]
+task = []
+fs = ["tokio/fs"]
+net = ["tokio/net"]
+
 [dependencies]
-camino = "1.1.10"
 derive_more = { version = "2.0.1", features = ["full"] }
 luaffi = { path = "../luaffi" }
 luajit = { path = "../luajit" }
 sysexits = "0.9.0"
 thiserror = "2.0.12"
-tokio = { version = "1.45.1", features = ["rt", "time", "fs", "net", "process", "signal", "tracing"] }
+tokio = { version = "1.45.1", features = ["rt"] }
-tracing = "0.1.41"

crates/lb/src/lib.rs

@@ -1,5 +1,10 @@
-pub mod chan;
-pub mod fs;
-pub mod net;
 pub mod runtime;
+
+#[cfg(feature = "task")]
+pub mod chan;
+#[cfg(feature = "fs")]
+pub mod fs;
+#[cfg(feature = "net")]
+pub mod net;
+#[cfg(feature = "task")]
 pub mod task;

src/lib.rs

@@ -1,14 +1,20 @@
+#[cfg(feature = "task")]
 pub use lb::chan;
+#[cfg(feature = "fs")]
 pub use lb::fs;
+#[cfg(feature = "net")]
 pub use lb::net;
+#[cfg(feature = "task")]
 pub use lb::task;
 
 #[doc(hidden)]
-pub fn load_modules(runtime: &mut lb::runtime::Builder) {
+pub fn open(#[allow(unused)] rt: &mut lb::runtime::Builder) {
-    // core modules
+    #[cfg(feature = "task")]
-    runtime
+    rt.module::<task::lb_tasklib>("lb:task");
-        .module::<task::lb_tasklib>("lb:task")
+    #[cfg(feature = "task")]
-        .module::<chan::lb_chanlib>("lb:channel")
+    rt.module::<chan::lb_chanlib>("lb:channel");
-        .module::<fs::lb_fslib>("lb:fs")
+    #[cfg(feature = "fs")]
-        .module::<net::lb_netlib>("lb:net");
+    rt.module::<fs::lb_fslib>("lb:fs");
+    #[cfg(feature = "net")]
+    rt.module::<net::lb_netlib>("lb:net");
 }

src/main.rs

@@ -1,9 +1,7 @@
 use clap::Parser;
 use mimalloc::MiMalloc;
 use owo_colors::OwoColorize;
-use std::{
+use std::{backtrace::Backtrace, fmt::Display, num::NonZero, panic, process, thread};
-    backtrace::Backtrace, fmt::Display, net::SocketAddr, num::NonZero, panic, process, thread,
-};
 use sysexits::ExitCode;
 
 #[global_allocator]
@@ -84,10 +82,12 @@ struct Args {
     blocking_threads: NonZero<usize>,
 
     /// Enable tokio-console integration.
+    #[cfg(feature = "tokio-console")]
     #[clap(long, help_heading = "Debugging")]
     enable_console: bool,
 
     /// tokio-console publish address.
+    #[cfg(feature = "tokio-console")]
     #[clap(
         long,
         help_heading = "Debugging",
@@ -95,7 +95,7 @@ struct Args {
         default_value = "127.0.0.1:6669",
         requires = "enable_console"
     )]
-    console_addr: SocketAddr,
+    console_addr: std::net::SocketAddr,
 
     /// Dump internal data.
     #[clap(
@@ -162,7 +162,7 @@ fn unwrap_exit<T, E: Display>(code: ExitCode) -> impl FnOnce(E) -> T {
 
 fn init_logger(args: &Args) {
     use tracing::level_filters::LevelFilter;
-    use tracing_subscriber::{Layer, util::*};
+    use tracing_subscriber::util::*;
 
     let log = tracing_subscriber::fmt()
         .compact()
@@ -176,16 +176,19 @@ fn init_logger(args: &Args) {
         .with_target(false)
         .finish();
 
-    if args.enable_console {
+    #[cfg(feature = "tokio-console")]
+    {
+        use tracing_subscriber::Layer;
         console_subscriber::ConsoleLayer::builder()
             .with_default_env()
             .server_addr(args.console_addr)
             .spawn()
             .with_subscriber(log)
-            .init()
+            .init();
-    } else {
-        log.init()
     }
+
+    #[cfg(not(feature = "tokio-console"))]
+    log.init();
 }
 
 fn init_tokio(args: &Args) -> tokio::runtime::Runtime {
@@ -207,7 +210,7 @@ fn init_tokio(args: &Args) -> tokio::runtime::Runtime {
 
 fn init_lua(args: &Args) -> lb::runtime::Runtime {
     let mut rt = lb::runtime::Builder::new();
-    luby::load_modules(&mut rt);
+    luby::open(&mut rt);
 
     if args.dump.iter().find(|s| *s == "cdef").is_some() {
         print!("{}", rt.registry());