uucore: disable signals at simple utils for binary size and fast startup

src/uu/arch/src/arch.rs

@@ -9,7 +9,7 @@ use std::io::{Write, stdout};
 use uucore::error::{UResult, USimpleError};
 use uucore::translate;
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/basename/src/basename.rs

@@ -24,7 +24,7 @@ pub mod options {
     pub static ZERO: &str = "zero";
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     //
     // Argument parsing

src/uu/dircolors/src/dircolors.rs

@@ -116,7 +116,7 @@ fn generate_ls_colors(fmt: &OutputFmt, sep: &str) -> String {
     }
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/dirname/src/dirname.rs

@@ -99,7 +99,7 @@ fn dirname_string_manipulation(path_bytes: &[u8]) -> Cow<'_, [u8]> {
     Cow::Borrowed(b".")
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/expr/src/expr.rs

@@ -99,7 +99,7 @@ pub fn uu_app() -> Command {
         )
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     // For expr utility we do not want getopts.
     // The following usage should work without escaping hyphens: `expr -15 = 1 + 2 \* \( 3 - -4 \)`

src/uu/false/src/false.rs

@@ -8,7 +8,7 @@ use uucore::error::{UResult, set_exit_code};
 
 use uucore::translate;
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 // TODO: modify proc macro to allow no-result uumain
 #[expect(clippy::unnecessary_wraps, reason = "proc macro requires UResult")]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {

src/uu/groups/src/groups.rs

@@ -45,7 +45,7 @@ fn infallible_gid2grp(gid: u32) -> String {
     }
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/hostid/src/hostid.rs

@@ -12,7 +12,7 @@ use uucore::{error::UResult, format_usage};
 
 use uucore::translate;
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     uucore::clap_localization::handle_clap_result(uu_app(), args)?;
     /*

src/uu/hostname/src/hostname.rs

@@ -59,7 +59,7 @@ mod wsa {
     }
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/id/src/id.rs

@@ -121,7 +121,7 @@ struct State {
     user_specified: bool,
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 #[allow(clippy::cognitive_complexity)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;

src/uu/link/src/link.rs

@@ -17,7 +17,7 @@ pub mod options {
     pub static FILES: &str = "FILES";
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
     let files: Vec<_> = matches

src/uu/logname/src/logname.rs

@@ -22,7 +22,7 @@ fn get_userlogin() -> Option<String> {
     }
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let _ = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/nproc/src/nproc.rs

@@ -25,7 +25,7 @@ pub const _SC_NPROCESSORS_CONF: libc::c_int = 1001;
 static OPT_ALL: &str = "all";
 static OPT_IGNORE: &str = "ignore";
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/pathchk/src/pathchk.rs

@@ -33,7 +33,7 @@ mod options {
 const POSIX_PATH_MAX: usize = 256;
 const POSIX_NAME_MAX: usize = 14;
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/pinky/src/pinky.rs

@@ -26,7 +26,7 @@ mod options {
     pub const HELP: &str = "help";
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 use platform::uumain;
 
 pub fn uu_app() -> Command {

src/uu/printenv/src/printenv.rs

@@ -17,7 +17,7 @@ static OPT_NULL: &str = "null";
 
 static ARG_VARIABLES: &str = "variables";
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result_with_exit_code(uu_app(), args, 2)?;
 

src/uu/pwd/src/pwd.rs

@@ -107,7 +107,7 @@ fn logical_path() -> io::Result<PathBuf> {
     }
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
     // if POSIXLY_CORRECT is set, we want to a logical resolution.

src/uu/readlink/src/readlink.rs

@@ -30,7 +30,7 @@ const OPT_ZERO: &str = "zero";
 
 const ARG_FILES: &str = "files";
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/realpath/src/realpath.rs

@@ -71,7 +71,7 @@ impl ValueParserFactory for NonEmptyOsStringParser {
     }
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/test/src/test.rs

@@ -41,7 +41,7 @@ pub fn uu_app() -> Command {
         .after_help(translate!("test-after-help"))
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(mut args: impl uucore::Args) -> UResult<()> {
     let program = args.next().unwrap_or_else(|| OsString::from("test"));
     let binary_name = uucore::util_name();

src/uu/true/src/true.rs

@@ -8,7 +8,7 @@ use uucore::error::{UResult, set_exit_code};
 
 use uucore::translate;
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 // TODO: modify proc macro to allow no-result uumain
 #[expect(clippy::unnecessary_wraps, reason = "proc macro requires UResult")]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {

src/uu/tty/src/tty.rs

@@ -17,7 +17,7 @@ mod options {
     pub const SILENT: &str = "silent";
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result_with_exit_code(uu_app(), args, 2)?;
 

src/uu/uname/src/uname.rs

@@ -119,7 +119,7 @@ pub struct Options {
     pub os: bool,
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/unlink/src/unlink.rs

@@ -16,7 +16,7 @@ use uucore::translate;
 
 static OPT_PATH: &str = "FILE";
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/uptime/src/uptime.rs

@@ -48,7 +48,7 @@ impl UError for UptimeError {
     }
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/users/src/users.rs

@@ -34,7 +34,7 @@ fn get_long_usage() -> String {
     translate!("users-long-usage", "default_path" => default_path)
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uucore::clap_localization::handle_clap_result(uu_app(), args)?;
 

src/uu/who/src/who.rs

@@ -36,7 +36,7 @@ fn get_runlevel_help() -> String {
     return translate!("who-help-runlevel-non-linux");
 }
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 use platform::uumain;
 
 pub fn uu_app() -> Command {

src/uu/whoami/src/whoami.rs

@@ -11,7 +11,7 @@ use uucore::translate;
 
 mod platform;
 
-#[uucore::main]
+#[uucore::main(no_signals)]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     uucore::clap_localization::handle_clap_result(uu_app(), args)?;
     let username = whoami()?;

src/uucore_procs/src/lib.rs

@@ -23,14 +23,16 @@ use quote::quote;
 /// - Disabling Rust signal handlers for proper core dumps
 /// - Error handling and exit code management
 #[proc_macro_attribute]
-pub fn main(_args: TokenStream, stream: TokenStream) -> TokenStream {
+pub fn main(args: TokenStream, stream: TokenStream) -> TokenStream {
     let stream = proc_macro2::TokenStream::from(stream);
+    // Some utils e.g. true does not require signals
+    let signals = !args.to_string().contains("no_signals");
 
     let new = quote!(
         // Initialize SIGPIPE state capture at process startup (Unix only).
         // This must be at module level to set up the .init_array static that runs
         // before main() to capture whether SIGPIPE was ignored by the parent process.
-        #[cfg(unix)]
+        #[cfg(all(#signals, unix))]
         uucore::init_startup_state_capture!();
 
         pub fn uumain(args: impl uucore::Args) -> i32 {
@@ -39,13 +41,14 @@ pub fn main(_args: TokenStream, stream: TokenStream) -> TokenStream {
             // Restore SIGPIPE to default if it wasn't explicitly ignored by parent.
             // The Rust runtime ignores SIGPIPE, but we need to respect the parent's
             // signal disposition for proper pipeline behavior (GNU compatibility).
+            // needed even for true --version
             #[cfg(unix)]
             if !uucore::signals::sigpipe_was_ignored() {
                 let _ = uucore::signals::enable_pipe_errors();
             }
 
             // disable rust signal handlers (otherwise processes don't dump core after e.g. one SIGSEGV)
-            #[cfg(unix)]
+            #[cfg(all(#signals, unix))]
             uucore::disable_rust_signal_handlers().expect("Disabling rust signal handlers failed");
             let result = uumain(args);
             match result {