fix most clippy lints

src/app.rs

@@ -219,7 +219,7 @@ pub fn build_app() -> App<'static, 'static> {
         )
 }
 
-#[cfg_attr(rustfmt, rustfmt_skip)]
+#[rustfmt::skip]
 fn usage() -> HashMap<&'static str, Help> {
     let mut h = HashMap::new();
     doc!(h, "hidden"

src/internal/filter/size.rs

@@ -24,7 +24,7 @@ const GIBI: u64 = MEBI * 1024;
 const TEBI: u64 = GIBI * 1024;
 
 impl SizeFilter {
-    pub fn from_string<'a>(s: &str) -> Option<Self> {
+    pub fn from_string(s: &str) -> Option<Self> {
         if !SIZE_CAPTURES.is_match(s) {
             return None;
         }
@@ -56,9 +56,9 @@ impl SizeFilter {
     }
 
     pub fn is_within(&self, size: u64) -> bool {
-        match self {
-            &SizeFilter::Max(limit) => size <= limit,
-            &SizeFilter::Min(limit) => size >= limit,
+        match *self {
+            SizeFilter::Max(limit) => size <= limit,
+            SizeFilter::Min(limit) => size >= limit,
         }
     }
 }

src/main.rs

@@ -49,7 +49,7 @@ fn main() {
     // Get one or more root directories to search.
     let mut dir_vec: Vec<_> = match matches
         .values_of("path")
-        .or(matches.values_of("search-path"))
+        .or_else(|| matches.values_of("search-path"))
     {
         Some(paths) => paths
             .map(|path| {

src/output.rs

@@ -19,7 +19,7 @@ use std::sync::Arc;
 use ansi_term;
 
 /// Remove the `./` prefix from a path.
-fn strip_current_dir<'a>(pathbuf: &'a PathBuf) -> &'a Path {
+fn strip_current_dir(pathbuf: &PathBuf) -> &Path {
     let mut iter = pathbuf.components();
     let mut iter_next = iter.clone();
     if iter_next.next() == Some(Component::CurDir) {
@@ -70,7 +70,7 @@ fn print_entry_colorized(
         write!(stdout, "{}", style.paint(component.to_string_lossy()))?;
 
         if wants_to_quit.load(Ordering::Relaxed) {
-            write!(stdout, "\n")?;
+            writeln!(stdout)?;
             process::exit(ExitCode::KilledBySigint.into());
         }
     }
@@ -78,7 +78,7 @@ fn print_entry_colorized(
     if config.null_separator {
         write!(stdout, "\0")
     } else {
-        writeln!(stdout, "")
+        writeln!(stdout)
     }
 }
 

src/walk.rs

@@ -304,7 +304,7 @@ fn spawn_senders(
 
             // Filter out unwanted extensions.
             if let Some(ref exts_regex) = config.extensions {
-                if let Some(path_str) = entry_path.file_name().map_or(None, |s| s.to_str()) {
+                if let Some(path_str) = entry_path.file_name().and_then(|s| s.to_str()) {
                     if !exts_regex.is_match(path_str) {
                         return ignore::WalkState::Continue;
                     }
@@ -314,7 +314,7 @@ fn spawn_senders(
             }
 
             // Filter out unwanted sizes if it is a file and we have been given size constraints.
-            if config.size_constraints.len() > 0 {
+            if !config.size_constraints.is_empty() {
                 if entry_path.is_file() {
                     if let Ok(metadata) = entry_path.metadata() {
                         let file_size = metadata.len();