normalize formatting and add rustfmt config

rustfmt.toml

@@ -0,0 +1,16 @@
+unstable_features = true
+hard_tabs = true
+inline_attribute_width = 30
+use_small_heuristics = "Max"
+max_width = 95
+reorder_imports = false
+reorder_modules = false
+reorder_impl_items = true
+report_todo = "Always"
+report_fixme = "Always"
+struct_field_align_threshold = 25
+use_field_init_shorthand = true
+use_try_shorthand = true
+match_arm_blocks = false
+overflow_delimited_expr = true
+edition = "2018"

src/main.rs

@@ -25,14 +25,15 @@ fn sig_reap() {
 		match waitpid(Pid::from_raw(-1), Some(WaitPidFlag::WNOHANG)) {
 			Err(_) => break,
 			Ok(status) => match status {
-            	WaitStatus::Exited(pid, ..) |
+				WaitStatus::Exited(pid, ..)
-            	WaitStatus::Signaled(pid, ..) |
+				| WaitStatus::Signaled(pid, ..)
-            	WaitStatus::Stopped(pid, ..) |
+				| WaitStatus::Stopped(pid, ..)
-            	WaitStatus::Continued(pid) => if pid.as_raw() <= 0 {
+				| WaitStatus::Continued(pid) =>
-                	break
+					if pid.as_raw() <= 0 {
+						break;
 					},
 				_ => (),
-        	}
+			},
 		}
 	}
 
@@ -50,17 +51,14 @@ fn sig_reboot() {
 }
 
 fn main() {
-    if getpid().as_raw() != 1 { return }
+	if getpid().as_raw() != 1 {
+		return;
+	}
 
-	let signals = Signals::new(&[
+	let signals = Signals::new(&[SIGUSR1, SIGCHLD, SIGALRM, SIGINT])
-		SIGUSR1,
+		.expect("[RS] failed to handle signals");
-		SIGCHLD,
-		SIGALRM,
-		SIGINT,
-    ]).expect("[RS] failed to handle signals");
 
-	set_current_dir("/")
+	set_current_dir("/").expect("[RS] failed to chdir");
-		.expect("[RS] failed to chdir");
 
 	let init = Command::new(config::INIT_CMD[0])
 		.args(config::INIT_CMD.iter().skip(1))
@@ -69,8 +67,7 @@ fn main() {
 		.expect("[RS] failed to spawn init command");
 
 	thread::spawn(|| {
-    	let c = init.wait_with_output()
+		let c = init.wait_with_output().expect("[RS] failed to wait on init command");
-    		.expect("[RS] failed to wait on init command");
 
 		if !c.status.success() {
 			eprintln!("[RS] exited with a non-zero return code, see stderr below:");
@@ -81,8 +78,7 @@ fn main() {
 	for signal in signals.forever() {
 		match signal {
 			SIGUSR1 => sig_poweroff(),
-        	SIGCHLD |
+			SIGCHLD | SIGALRM => sig_reap(),
-        	SIGALRM => sig_reap(),
 			SIGINT => sig_reboot(),
 			_ => unreachable!(),
 		}