argued(1): re-write in Rust

Makefile

@@ -32,7 +32,7 @@ RUSTLIBS = --extern getopt=build/o/libgetopt.rlib \
 CFLAGS += -I$(SYSEXITS)
 
 .PHONY: all
-all: dj false fop hru intcmp mm npc pschdir rpn scrut str strcmp swab true
+all: argued dj false fop hru intcmp mm npc rpn scrut str strcmp swab true
 
 # keep build/include until bindgen(1) has stdin support
 # https://github.com/rust-lang/rust-bindgen/issues/2703
@@ -87,6 +87,11 @@ build/o/libsysexits.rlib: build/include/sysexits.h
 build/include/sysexits.h: build $(SYSEXITS)sysexits.h
 	printf '\043define EXIT_FAILURE 1\n' | cat - $(SYSEXITS)sysexits.h > $@
 
+.PHONY: argued
+argued: build/bin/argued
+build/bin/argued: src/argued.rs build
+	$(RUSTC) $(RUSTFLAGS) -o $@ src/argued.rs
+
 .PHONY: dj
 dj: build/bin/dj
 build/bin/dj: src/dj.c build
@@ -122,11 +127,6 @@ npc: build/bin/npc
 build/bin/npc: src/npc.c build
 	$(CC) $(CFLAGAS) -o $@ src/npc.c
 
-.PHONY: pschdir
-pschdir: build/bin/pschdir
-build/bin/pschdir: src/pschdir.rs build
-	$(RUSTC) $(RUSTFLAGS) $(RUSTLIBS) -o $@ src/pschdir.rs
-
 .PHONY: rpn
 rpn: build/bin/rpn
 build/bin/rpn: src/rpn.rs build rustlibs

docs/argued.1

@@ -0,0 +1,28 @@
+.\" Copyright (c) 2022–2024 DTB <trinity@trinity.moe>
+.\"
+.\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
+.\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
+.\"
+.TH ARGUED 1 2024-07-23 "Harakit-overgrown X.X.X"
+.SH NAME
+argued \(en check for arguments
+.\"
+.SH DESCRIPTION
+
+.BR argued (1)
+exits successfully if any arguments are provided, and unsuccessfully
+otherwise.
+.\"
+.SH AUTHOR
+
+Written by DTB
+.MT trinity@trinity.moe
+.ME .
+.\"
+.SH COPYRIGHT
+
+This work is marked with CC0 1.0. To see a copy of this license, visit
+<http://creativecommons.org/publicdomain/zero/1.0>.
+.\"
+.SH SEE ALSO
+.BR test (1)

src/argued.rs

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2022_2024 DTB <trinity@trinity.moe>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Affero General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see https://www.gnu.org/licenses/.
+ */
+
+ use std::{ env::args, process::ExitCode };
+
+ fn main() -> ExitCode {
+ 	let argv = args().collect::<Vec<String>>();
+
+ 	match argv.len() {
+ 		0 | 1 => ExitCode::FAILURE,
+ 		_ =>     ExitCode::SUCCESS
+ 	}
+ }

src/pschdir.rs

@@ -1,61 +0,0 @@
-/*
- * Copyright (c) 2023_2024 DTB <trinity@trinity.moe>
- * SPDX-License-Identifier: AGPL-3.0-or-later
- *
- * This program is free software: you can redistribute it and/or modify it under
- * the terms of the GNU Affero General Public License as published by the Free
- * Software Foundation, either version 3 of the License, or (at your option) any
- * later version.
- * 
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
- * details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see https://www.gnu.org/licenses/.
- */
-
-use std::{ env::args, io::Error, process::{ Command, ExitCode } };
-
-extern crate strerror;
-use strerror::StrError;
-
-extern crate sysexits;
-use sysexits::{ EX_UNAVAILABLE, EX_USAGE };
-
-fn error(p: &str, n: &str, e: Error) -> ExitCode {
-	eprintln!("{}: {}: {}", p, n, e.strerror());
-	ExitCode::from(EX_UNAVAILABLE as u8)
-}
-
-fn main() -> ExitCode {
-	let argv = args().collect::<Vec<String>>();
-
-	if argv.len() < 3 {
-		eprintln!("Usage: {} directory command [argument]", argv[0]);
-		return ExitCode::from(EX_USAGE as u8);
-	}
-
-	let cmdargs = argv.iter().clone().skip(3).collect::<Vec<&String>>();
-
-	match Command::new(argv[2].clone())
-			.current_dir(argv[1].clone())
-			.args(cmdargs)
-			.spawn() {
-		Ok(mut child) => match child.wait() {
-			Ok(status) => {
-				match status.code() {
-					Some(code) => ExitCode::from(code as u8),
-					None => {
-						eprintln!("{}: {}: process terminated by signal",
-							argv[0], argv[2]);
-						ExitCode::FAILURE
-					}
-				}
-			},
-			Err(e) => error(&argv[0], &argv[2], e)
-		},
-		Err(e) => error(&argv[0], &argv[2], e)
-	}
-}