fix(clippy): if_not_else

src/uu/ls/src/ls.rs

@@ -1091,13 +1091,13 @@ impl Config {
             Dereference::DirArgs
         };
 
-        let tab_size = if !needs_color {
+        let tab_size = if needs_color {
+            Some(0)
+        } else {
             options
                 .get_one::<String>(options::format::TAB_SIZE)
                 .and_then(|size| size.parse::<usize>().ok())
                 .or_else(|| std::env::var("TABSIZE").ok().and_then(|s| s.parse().ok()))
-        } else {
-            Some(0)
         }
         .unwrap_or(SPACES_IN_TAB);
 

src/uu/ptx/src/ptx.rs

@@ -736,16 +736,7 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
         .flatten()
         .cloned();
 
-    if !config.gnu_ext {
+    if config.gnu_ext {
-        input_files = vec![files.next().unwrap_or("-".to_string())];
-        output_file = files.next().unwrap_or("-".to_string());
-        if let Some(file) = files.next() {
-            return Err(UUsageError::new(
-                1,
-                format!("extra operand {}", file.quote()),
-            ));
-        }
-    } else {
         input_files = {
             let mut files = files.collect::<Vec<_>>();
             if files.is_empty() {
@@ -754,6 +745,15 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
             files
         };
         output_file = "-".to_string();
+    } else {
+        input_files = vec![files.next().unwrap_or("-".to_string())];
+        output_file = files.next().unwrap_or("-".to_string());
+        if let Some(file) = files.next() {
+            return Err(UUsageError::new(
+                1,
+                format!("extra operand {}", file.quote()),
+            ));
+        }
     }
 
     let word_filter = WordFilter::new(&matches, &config)?;

src/uucore/src/lib/features/format/num_format.rs

@@ -328,14 +328,14 @@ impl Formatter<&ExtendedBigDecimal> for Float {
 }
 
 fn get_sign_indicator(sign: PositiveSign, negative: bool) -> String {
-    if !negative {
+    if negative {
+        String::from("-")
+    } else {
         match sign {
             PositiveSign::None => String::new(),
             PositiveSign::Plus => String::from("+"),
             PositiveSign::Space => String::from(" "),
         }
-    } else {
-        String::from("-")
     }
 }
 

src/uucore/src/lib/features/parser/num_parser.rs

@@ -638,13 +638,13 @@ pub(crate) fn parse<'a>(
 
     // Return what has been parsed so far. If there are extra characters, mark the
     // parsing as a partial match.
-    if !rest.is_empty() {
+    if rest.is_empty() {
+        ebd_result
+    } else {
         Err(ExtendedParserError::PartialMatch(
             ebd_result.unwrap_or_else(|e| e.extract()),
             rest,
         ))
-    } else {
-        ebd_result
     }
 }