feat: listing files only using '--only-files' flag

src/fs/filter.rs

@@ -41,6 +41,9 @@ pub struct FileFilter {
     /// Whether to only show directories.
     pub only_dirs: bool,
 
+    /// Whether to only show files.
+    pub only_files: bool,
+
     /// Which invisible “dot” files to include when listing a directory.
     ///
     /// Files starting with a single “.” are used to determine “system” or
@@ -68,9 +71,18 @@ impl FileFilter {
     pub fn filter_child_files(&self, files: &mut Vec<File<'_>>) {
         files.retain(|f| ! self.ignore_patterns.is_ignored(&f.name));
 
-        if self.only_dirs {
-            files.retain(File::is_directory);
+        match (self.only_dirs, self.only_files) {
+            (true, false) => {
+                // On pass -'-only-dirs' flag only
+                files.retain(File::is_directory);
+            }
+            (false, true) => {
+                // On pass -'-only-files' flag only
+                files.retain(File::is_file)
+            }
+            _ => {}
         }
+       
     }
 
     /// Remove every file in the given vector that does *not* pass the

src/options/filter.rs

@@ -15,6 +15,7 @@ impl FileFilter {
             list_dirs_first:  matches.has(&flags::DIRS_FIRST)?,
             reverse:          matches.has(&flags::REVERSE)?,
             only_dirs:        matches.has(&flags::ONLY_DIRS)?,
+            only_files:        matches.has(&flags::ONLY_FILES)?,
             sort_field:       SortField::deduce(matches)?,
             dot_filter:       DotFilter::deduce(matches)?,
             ignore_patterns:  IgnorePatterns::deduce(matches)?,

src/options/flags.rs

@@ -34,6 +34,7 @@ pub static IGNORE_GLOB: Arg = Arg { short: Some(b'I'), long: "ignore-glob", take
 pub static GIT_IGNORE:  Arg = Arg { short: None, long: "git-ignore",           takes_value: TakesValue::Forbidden };
 pub static DIRS_FIRST:  Arg = Arg { short: None, long: "group-directories-first",  takes_value: TakesValue::Forbidden };
 pub static ONLY_DIRS:   Arg = Arg { short: Some(b'D'), long: "only-dirs", takes_value: TakesValue::Forbidden };
+pub static ONLY_FILES:   Arg = Arg { short: Some(b'f'), long: "only-files", takes_value: TakesValue::Forbidden };
 const SORTS: Values = &[ "name", "Name", "size", "extension",
                          "Extension", "modified", "changed", "accessed",
                          "created", "inode", "type", "none" ];
@@ -83,7 +84,7 @@ pub static ALL_ARGS: Args = Args(&[
     &COLOR, &COLOUR, &COLOR_SCALE, &COLOUR_SCALE, &WIDTH,
 
     &ALL, &ALMOST_ALL, &LIST_DIRS, &LEVEL, &REVERSE, &SORT, &DIRS_FIRST,
-    &IGNORE_GLOB, &GIT_IGNORE, &ONLY_DIRS,
+    &IGNORE_GLOB, &GIT_IGNORE, &ONLY_DIRS, &ONLY_FILES,
 
     &BINARY, &BYTES, &GROUP, &NUMERIC, &HEADER, &ICONS, &INODE, &LINKS, &MODIFIED, &CHANGED,
     &BLOCKSIZE, &TIME, &ACCESSED, &CREATED, &TIME_STYLE, &HYPERLINK, &MOUNTS,

src/options/help.rs

@@ -35,6 +35,7 @@ FILTERING AND SORTING OPTIONS
   -s, --sort SORT_FIELD      which field to sort by
   --group-directories-first  list directories before other files
   -D, --only-dirs            list only directories
+  -f, --only-files           list only files
   -I, --ignore-glob GLOBS    glob patterns (pipe-separated) of files to ignore";
 
 static GIT_FILTER_HELP: &str = "  \