From 04af786fb725dedadd782709278921df190c713f Mon Sep 17 00:00:00 2001
From: gennyble <gen@nyble.dev>
Date: Mon, 6 Nov 2023 05:31:38 -0600
Subject: exit with 0 when out of lines

---
 popline.1   | 10 ++++++++++
 src/main.rs | 15 +++++++++++----
 2 files changed, 21 insertions(+), 4 deletions(-)
 create mode 100644 popline.1

diff --git a/popline.1 b/popline.1
new file mode 100644
index 0000000..2e6062a
--- /dev/null
+++ b/popline.1
@@ -0,0 +1,10 @@
+.TH POPLINE 1
+.SH NAME
+popline \- popfront a file
+.SH SYNOPSIS
+.B popline
+.IR file
+.SH DESCRIPTION
+.B popline
+reads the first line of a file, writes the file to disk without that line,
+and prints the line to stdout.
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index b5994e9..c15cc54 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,17 +1,24 @@
+use std::path::PathBuf;
+
 fn main() {
+	// We don't need anything fancy here now
 	if std::env::args().len() != 2 {
-		eprintln!("usage: popline <file>\n");
-		eprintln!("removes the first line of a file and rewrites it to disk without that line");
+		eprintln!(
+			"usage: popline <file>\n\
+			removes the first line of a file,\
+			writes it back to disk without that line"
+		);
 		std::process::exit(1);
 	}
 
-	let file = std::path::PathBuf::from(std::env::args().nth(1).unwrap());
+	// A panic is fine, really; it'll be caught while writing
+	let file = PathBuf::from(std::env::args().nth(1).unwrap());
 	let string = std::fs::read_to_string(&file).unwrap();
 	let mut lines = string.lines();
 
 	let line = match lines.next() {
 		None => {
-			std::process::exit(1);
+			std::process::exit(0);
 		}
 		Some(line) => line,
 	};
-- 
cgit 1.4.1-3-g733a5