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improve error handling

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This commit is contained in:
Dietrich 2020-10-31 11:15:29 +01:00
parent 6389bb988d
commit d9fe8b8160
1 changed files with 8 additions and 4 deletions
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12
src/userlib/files.rs
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@ -81,10 +81,14 @@ impl LockedFileGuard {
} }
pub fn replace_contents(&mut self, new_content: String) -> Result<(), crate::UserLibError> { pub fn replace_contents(&mut self, new_content: String) -> Result<(), crate::UserLibError> {
self.file = File::create(&self.path).expect("Failed to truncate file."); self.file = match File::create(&self.path) {
self.file Ok(file) => file,
.write_all(&new_content.into_bytes()) Err(e) => return Err(("Failed to truncate file.".to_owned(), e).into()),
.expect("Failed to write all users."); };
match self.file.write_all(&new_content.into_bytes()) {
Ok(_) => (),
Err(e) => return Err(("Could not write (all) users. ".to_owned(), e).into()),
};
let _ = self.file.write("\n".as_bytes()); let _ = self.file.write("\n".as_bytes());
Ok(()) Ok(())
} }