Show directories very similar to ncdu

3 files changed, 35 insertions, 6 deletions

diff --git a/src/common.rs b/src/common.rs
index ccf8a09..43c67f7 100644
--- a/src/common.rs
+++ b/src/common.rs
@@ -4,10 +4,13 @@ use jwalk::WalkDir;
 use petgraph::Direction;
 use std::{fmt, path::Path};
 
-pub(crate) fn get_size_or_panic(tree: &Tree, node_idx: TreeIndex) -> u64 {
+pub(crate) fn get_entry_or_panic(tree: &Tree, node_idx: TreeIndex) -> &EntryData {
     tree.node_weight(node_idx)
         .expect("node should always be retrievable with valid index")
-        .size
+}
+
+pub(crate) fn get_size_or_panic(tree: &Tree, node_idx: TreeIndex) -> u64 {
+    get_entry_or_panic(tree, node_idx).size
 }
 
 pub(crate) fn sorted_entries(
diff --git a/src/interactive/widgets.rs b/src/interactive/widgets.rs
index 80adfe9..0e0a58d 100644
--- a/src/interactive/widgets.rs
+++ b/src/interactive/widgets.rs
@@ -1,5 +1,6 @@
 use super::{DisplayOptions, Traversal, Tree, TreeIndex};
-use crate::{sorted_entries, ByteFormat};
+use crate::{get_entry_or_panic, sorted_entries, ByteFormat};
+use std::path::PathBuf;
 use tui::layout::{Constraint, Direction, Layout};
 use tui::style::{Color, Style};
 use tui::{
@@ -128,6 +129,27 @@ impl<'a> Widget for Entries<'a> {
             sorting,
             selected,
         } = self;
+        let is_dir = |mut node_idx| {
+            const THE_ROOT: usize = 1;
+            let mut entries = Vec::new();
+
+            while let Some(parent_idx) =
+                tree.neighbors_directed(node_idx, petgraph::Incoming).next()
+            {
+                entries.push(get_entry_or_panic(tree, node_idx));
+                node_idx = parent_idx;
+            }
+            entries.push(get_entry_or_panic(tree, node_idx));
+            entries
+                .iter()
+                .rev()
+                .skip(THE_ROOT)
+                .fold(PathBuf::new(), |mut acc, entry| {
+                    acc.push(&entry.name);
+                    acc
+                })
+                .is_dir()
+        };
         let entries = sorted_entries(tree, *root, *sorting);
         let total: u64 = entries.iter().map(|(_, w)| w.size).sum();
         List::new(entries.iter().map(|(node_idx, w)| {
@@ -145,9 +167,10 @@ impl<'a> Widget for Entries<'a> {
             };
             Text::Styled(
                 format!(
-                    "{} | {:.02}% | {}",
+                    "{} | {:>5.02}% | {}{}",
                     display.byte_format.display(w.size),
                     (w.size as f64 / total as f64) * 100.0,
+                    if is_dir(*node_idx) { "/" } else { " " },
                     w.name.to_string_lossy()
                 )
                 .into(),
diff --git a/src/main.rs b/src/main.rs
index 0ff205f..fca4014 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -39,8 +39,11 @@ fn run() -> Result<(), Error> {
                 Terminal::new(backend)
                     .with_context(|_| "Interactive mode requires a connected terminal")?
             };
-            let mut app =
-                dua::interactive::TerminalApp::initialize(&mut terminal, walk_options, input)?;
+            let mut app = dua::interactive::TerminalApp::initialize(
+                &mut terminal,
+                walk_options,
+                paths_from(input)?,
+            )?;
             app.process_events(&mut terminal, io::stdin().keys())?
         }
         Some(Aggregate {