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Exit gracefully on unreadable input instead of panicking #9

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Merged
namingbe merged 1 commit into from
Jun 14, 2026
Merged

Exit gracefully on unreadable input instead of panicking #9

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15 changes: 12 additions & 3 deletions src/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -112,14 +112,23 @@ fn read_input(file: &Option<String>) -> Vec<u8> {
match file.as_deref() {
Some(path) if path != "-" => {
File::open(path)
.unwrap_or_else(|e| panic!("cannot open '{}': {}", path, e))
.unwrap_or_else(|e| {
eprintln!("cannot open '{}': {}", path, e);
std::process::exit(1);
})
.read_to_end(&mut data)
.unwrap_or_else(|e| panic!("read error: {}", e));
.unwrap_or_else(|e| {
eprintln!("read error: {}", e);
std::process::exit(1);
});
}
_ => {
io::stdin()
.read_to_end(&mut data)
.unwrap_or_else(|e| panic!("read error: {}", e));
.unwrap_or_else(|e| {
eprintln!("read error: {}", e);
std::process::exit(1);
});
}
};
data
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