applied clippy lints

src/cli.rs

@@ -138,7 +138,7 @@ impl SecretGeneration {
 
         while let Ok(el) = start.elapsed() {
             if el > timeout {
-                Err(error::Fido2LuksError::NoAuthenticatorError)?;
+                return Err(error::Fido2LuksError::NoAuthenticatorError);
             }
             if get_devices()
                 .map(|devices| !devices.is_empty())
@@ -287,9 +287,9 @@ pub fn run_cli() -> Fido2LuksResult<()> {
                 .patch(&args, Some(false))
                 .obtain_secret("Password")?;
             if *binary {
-                stdout.write(&secret[..])?;
+                stdout.write_all(&secret[..])?;
             } else {
-                stdout.write(hex::encode(&secret[..]).as_bytes())?;
+                stdout.write_all(hex::encode(&secret[..]).as_bytes())?;
             }
             Ok(stdout.flush()?)
         }
@@ -363,14 +363,11 @@ pub fn run_cli() -> Fido2LuksResult<()> {
                 {
                     Err(e) => {
                         match e {
-                            Fido2LuksError::WrongSecret if retries > 0 => (),
+                            Fido2LuksError::WrongSecret if retries > 0 => {}
                             Fido2LuksError::AuthenticatorError { ref cause }
-                                if cause.kind() == FidoErrorKind::Timeout && retries > 0 =>
-                            {
-                                ()
-                            }
+                                if cause.kind() == FidoErrorKind::Timeout && retries > 0 => {}
 
-                            e => break Err(e)?,
+                            e => return Err(e),
                         }
                         retries -= 1;
                         eprintln!("{}", e);

src/config.rs

@@ -24,7 +24,7 @@ impl Default for InputSalt {
 
 impl From<&str> for InputSalt {
     fn from(s: &str) -> Self {
-        let mut parts = s.split(":").into_iter();
+        let mut parts = s.split(':');
         match parts.next() {
             Some("ask") | Some("Ask") => InputSalt::AskPassword,
             Some("file") => InputSalt::File {
@@ -87,6 +87,7 @@ impl InputSalt {
 #[derive(Debug, Clone)]
 pub enum PasswordHelper {
     Script(String),
+    #[allow(dead_code)]
     Systemd,
     Stdin,
 }
@@ -134,7 +135,7 @@ impl PasswordHelper {
             Systemd => unimplemented!(),
             Stdin => Ok(util::read_password("Password", true)?),
             Script(password_helper) => {
-                let mut helper_parts = password_helper.split(" ");
+                let mut helper_parts = password_helper.split(' ');
 
                 let password = Command::new((&mut helper_parts).next().unwrap())
                     .args(helper_parts)

src/device.rs

@@ -7,7 +7,7 @@ use ctap::{
 };
 use std::time::Duration;
 
-const RP_ID: &'static str = "fido2luks";
+const RP_ID: &str = "fido2luks";
 
 pub fn make_credential_id(name: Option<&str>) -> Fido2LuksResult<FidoCredential> {
     let mut request = FidoCredentialRequestBuilder::default().rp_id(RP_ID);
@@ -52,7 +52,7 @@ pub fn get_devices() -> Fido2LuksResult<Vec<FidoDevice>> {
         match FidoDevice::new(&di) {
             Err(e) => match e.kind() {
                 FidoErrorKind::ParseCtap | FidoErrorKind::DeviceUnsupported => (),
-                err => Err(FidoError::from(err))?,
+                err => return Err(FidoError::from(err).into()),
             },
             Ok(dev) => devices.push(dev),
         }

src/luks.rs

@@ -11,7 +11,7 @@ fn load_device_handle<P: AsRef<Path>>(path: P) -> Fido2LuksResult<CryptDevice> {
         .into_iter()
         .fold(None, |res, format| match res {
             Some(Ok(())) => res,
-            Some(e) => Some(e.or(load(format))),
+            Some(e) => Some(e.or_else(|_| load(format))),
             None => Some(load(format)),
         })
         .unwrap()?;
@@ -58,9 +58,8 @@ pub fn remove_keyslots<P: AsRef<Path>>(path: P, exclude: &[u32]) -> Fido2LuksRes
             }
             _ => (),
         }
-        match handle.status()? {
-            KeyslotInfo::ActiveLast => break,
-            _ => (),
+        if let KeyslotInfo::ActiveLast = handle.status()? {
+            break;
         }
     }
     Ok(destroyed)

src/util.rs

@@ -4,7 +4,7 @@ use std::fs::File;
 use std::io::Read;
 use std::path::PathBuf;
 
-pub fn sha256<'a>(messages: &[&[u8]]) -> [u8; 32] {
+pub fn sha256(messages: &[&[u8]]) -> [u8; 32] {
     let mut digest = digest::Context::new(&digest::SHA256);
     for m in messages.iter() {
         digest.update(m);
@@ -23,7 +23,7 @@ pub fn read_password(q: &str, verify: bool) -> Fido2LuksResult<String> {
         {
             Err(Fido2LuksError::AskPassError {
                 cause: AskPassError::Mismatch,
-            })?
+            })
         }
         pass => Ok(pass),
     }