Add option to suppress size from being printed

README.md

@@ -62,6 +62,7 @@ Options:
   -l, --level <NUM>              Maximum depth to display
   -n, --scale <NUM>              Total number of digits after the decimal to display for disk usage [default: 2]
   -s, --sort <SORT>              Sort-order to display directory content [default: none] [possible values: name, size, size-rev, none]
+      --suppress-size            Don't show size
       --dirs-first               Always sorts directories above files
   -S, --follow-links             Traverse symlink directories and consider their disk usage; disabled by default
   -t, --threads <THREADS>        Number of threads to use [default: 4]

src/cli.rs

@@ -77,6 +77,10 @@ pub struct Clargs {
     /// Number of threads to use
     #[arg(short, long, default_value_t = 4)]
     pub threads: usize,
+
+    /// Don't show size; disabled by default
+    #[arg(long)]
+    pub suppress_size: bool,
 }
 
 /// Order in which to print nodes.

src/fs/erdtree/node.rs

@@ -215,6 +215,7 @@ pub struct NodePrecursor<'a> {
     dir_entry: DirEntry,
     show_icon: bool,
     scale: usize,
+    suppress_size: bool,
 }
 
 impl<'a> NodePrecursor<'a> {
@@ -224,12 +225,14 @@ impl<'a> NodePrecursor<'a> {
         dir_entry: DirEntry,
         show_icon: bool,
         scale: usize,
+        suppress_size: bool,
     ) -> Self {
         Self {
             disk_usage,
             dir_entry,
             show_icon,
             scale,
+            suppress_size,
         }
     }
 }
@@ -241,6 +244,7 @@ impl From<NodePrecursor<'_>> for Node {
             dir_entry,
             show_icon,
             scale,
+            suppress_size,
         } = precursor;
 
         let children = None;
@@ -272,12 +276,14 @@ impl From<NodePrecursor<'_>> for Node {
 
         let mut file_size = None;
 
-        if let Some(ref ft) = file_type {
-            if ft.is_file() {
-                if let Some(ref md) = metadata {
-                    file_size = match disk_usage {
-                        DiskUsage::Logical => Some(FileSize::logical(md, scale)),
-                        DiskUsage::Physical => FileSize::physical(path, md, scale),
+        if !suppress_size {
+            if let Some(ref ft) = file_type {
+                if ft.is_file() {
+                    if let Some(ref md) = metadata {
+                        file_size = match disk_usage {
+                            DiskUsage::Logical => Some(FileSize::logical(md, scale)),
+                            DiskUsage::Physical => FileSize::physical(path, md, scale),
+                        }
                     }
                 }
             }

src/fs/erdtree/tree/mod.rs

@@ -33,6 +33,8 @@ pub struct Tree {
     root: Node,
     #[allow(dead_code)]
     scale: usize,
+    #[allow(dead_code)]
+    suppress_size: bool,
 }
 
 pub type TreeResult<T> = Result<T, Error>;
@@ -48,8 +50,9 @@ impl Tree {
         icons: bool,
         disk_usage: DiskUsage,
         scale: usize,
+        suppress_size: bool,
     ) -> TreeResult<Self> {
-        let root = Self::traverse(walker, &order, icons, &disk_usage, scale)?;
+        let root = Self::traverse(walker, &order, icons, &disk_usage, scale, suppress_size)?;
 
         Ok(Self {
             disk_usage,
@@ -58,6 +61,7 @@ impl Tree {
             root,
             icons,
             scale,
+            suppress_size,
         })
     }
 
@@ -77,6 +81,7 @@ impl Tree {
         icons: bool,
         disk_usage: &DiskUsage,
         scale: usize,
+        suppress_size: bool,
     ) -> TreeResult<Node> {
         let (tx, rx) = channel::unbounded::<Node>();
 
@@ -131,7 +136,7 @@ impl Tree {
                 let tx = Sender::clone(&tx);
 
                 entry_res
-                    .map(|entry| NodePrecursor::new(disk_usage, entry, icons, scale))
+                    .map(|entry| NodePrecursor::new(disk_usage, entry, icons, scale, suppress_size))
                     .map(Node::from)
                     .map(|node| tx.send(node).unwrap())
                     .map(|_| WalkState::Continue)
@@ -197,7 +202,16 @@ impl TryFrom<Clargs> for Tree {
         let order = Order::from((clargs.sort(), clargs.dirs_first()));
         let du = DiskUsage::from(clargs.disk_usage());
         let scale = clargs.scale;
-        let tree = Tree::new(walker, order, clargs.level(), clargs.icons, du, scale)?;
+        let suppress_size = clargs.suppress_size;
+        let tree = Tree::new(
+            walker,
+            order,
+            clargs.level(),
+            clargs.icons,
+            du,
+            scale,
+            suppress_size,
+        )?;
         Ok(tree)
     }
 }

tests/suppress_size.rs

@@ -0,0 +1,24 @@
+use indoc::indoc;
+
+mod utils;
+
+#[test]
+fn suppress_size() {
+    assert_eq!(
+        utils::run_cmd(&["--suppress-size", "tests/data"]),
+        indoc!(
+            "
+            data 
+            ├─ nylarlathotep.txt 
+            ├─ lipsum 
+            │  └─ lipsum.txt 
+            ├─ dream_cycle 
+            │  └─ polaris.txt 
+            ├─ necronomicon.txt 
+            ├─ the_yellow_king 
+            │  └─ cassildas_song.md 
+            └─ nemesis.txt"
+        ),
+        "Failed to suppress size."
+    )
+}