diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/main.rs | 15 |
1 files changed, 11 insertions, 4 deletions
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, }; |