Increment version

.gitignore

@@ -6,4 +6,3 @@
 **/*.rs.bk
 *.swp
 .vscode/*
-*.idea/*

.travis.yml

@@ -1,12 +1,6 @@
 # Based on the "trust" template v0.1.2
 # https://github.com/japaric/trust/tree/v0.1.2
 
-# ----------- To do a release ---------
-# tag a commit and push:
-#   git tag v0.4.0.1
-#   git push origin v0.4.0.1
-# Remember to do a cargo publish to put it in crates.io
-
 dist: trusty
 language: rust
 services: docker
@@ -52,9 +46,8 @@ deploy:
   # - Create a `public_repo` GitHub token. Go to: https://github.com/settings/tokens/new
   # - Encrypt it: `travis encrypt 0123456789012345678901234567890123456789
   # - Paste the output down here
-#  api_key:
+  api_key:
-#    secure: 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
+    secure: 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
-  api_key: $API_KEY
   file_glob: true
   file: $CRATE_NAME-$TRAVIS_TAG-$TARGET.*
   on:

Cargo.lock

@@ -1,11 +1,9 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
 [[package]]
 name = "ansi_term"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -13,171 +11,102 @@ name = "assert_cli"
 version = "0.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "colored 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "colored 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "difference 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "environment 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "skeptic 0.13.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "skeptic 0.13.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "atty"
-version = "0.2.13"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.39 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "autocfg"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "backtrace"
-version = "0.3.40"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace-sys 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace-sys 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.39 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-demangle 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "backtrace-sys"
-version = "0.1.32"
+version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.39 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "bitflags"
-version = "1.2.1"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "bitflags"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bytecount"
-version = "0.4.0"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "c2-chacha"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "ppv-lite86 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "cargo_metadata"
-version = "0.6.4"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "error-chain 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "semver 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "cc"
-version = "1.0.48"
+version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cfg-if"
-version = "0.1.10"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "clap"
-version = "2.33.0"
+version = "2.31.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "atty 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "textwrap 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vec_map 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "colored"
-version = "1.9.0"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "crossbeam"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-channel 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-deque 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-epoch 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-queue 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "crossbeam-channel"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
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-version = "0.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "crossbeam-epoch 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "crossbeam-epoch"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "memoffset 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "crossbeam-queue"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "crossbeam-utils"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -186,21 +115,21 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "du-dust"
+name = "dtoa"
 version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "du-dust"
+version = "0.2.4"
 dependencies = [
  "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "assert_cli 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap 2.31.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "jwalk 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempfile 3.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "either"
-version = "1.5.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "environment"
 version = "0.1.1"
@@ -211,259 +140,141 @@ name = "error-chain"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "error-chain"
+name = "fuchsia-zircon"
-version = "0.12.1"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "fuchsia-cprng"
+name = "fuchsia-zircon-sys"
-version = "0.1.1"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "getrandom"
-version = "0.1.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
- "wasi 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "glob"
 version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
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-version = "0.4.4"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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+name = "kernel32-sys"
-version = "0.4.0"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "crossbeam 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "rayon 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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-version = "1.4.0"
+version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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-version = "0.2.66"
+version = "0.2.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "memoffset"
+name = "num-traits"
-version = "0.5.3"
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
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-
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- "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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-version = "1.0.6"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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-
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- "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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-]
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-]
-
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Cargo.toml

@@ -1,9 +1,8 @@
 [package]
 name = "du-dust"
 description = "A more intuitive version of du"
-version = "0.4.2"
+version = "0.3.0"
 authors = ["bootandy <bootandy@gmail.com>", "nebkor <code@ardent.nebcorp.com>"]
-edition = "2018"
 
 documentation = "https://github.com/bootandy/dust"
 homepage = "https://github.com/bootandy/dust"
@@ -21,10 +20,9 @@ name = "dust"
 path = "src/main.rs"
 
 [dependencies]
-ansi_term = "=0.11"
+ansi_term = "0.11"
-clap = "=2.33"
+clap = "2.31"
-jwalk = "0.4"
+assert_cli = "0.5"
+tempfile = "3"
+walkdir = "2"
 
-[dev-dependencies]
-assert_cli = "=0.5"
-tempfile = "=3"

README.md

@@ -7,11 +7,11 @@ du + rust = dust. Like du but more intuitive
 
 ## Install
 
-#### Cargo Install
+### Cargo
 
 * cargo install du-dust
 
-#### Download Install
+### Download
 
 * Download linux / mac binary from [Releases](https://github.com/bootandy/dust/releases)
 * unzip file: tar -xvf _downloaded_file.tar.gz_
@@ -38,7 +38,6 @@ Usage: dust -p <dir>  (full-path - does not shorten the path of the subdirectori
 Usage: dust -s <dir>  (apparent-size - shows the length of the file as opposed to the amount of disk space it uses)
 Usage: dust -n 30  <dir>  (Shows 30 directories not 20)
 Usage: dust -d 3  <dir>  (Shows 3 levels of subdirectories)
-Usage: dust -r  <dir>  (Reverse order of output, with root at the lowest)
 ```
 
 ```
@@ -63,7 +62,7 @@ djin:git/dust> dust
 
 ## Performance
 
-Dust uses a parallel fetching implementation that greatly improves performance for directory trees with reasonable amount of files (read more than 20) compared to du. This can be as much as 7x faster than du on a clean cache.
+Dust is currently about 4 times slower than du.
 
 ## Alternatives
 

ci/before_deploy.sh

@@ -1,4 +1,3 @@
-#!/usr/bin/env bash
 # This script takes care of building your crate and packaging it for release
 
 set -ex

ci/install.sh

@@ -1,4 +1,3 @@
-#!/usr/bin/env bash
 set -ex
 
 main() {

ci/script.sh

@@ -1,4 +1,3 @@
-#!/usr/bin/env bash
 # This script takes care of testing your crate
 
 set -ex

src/display.rs

@@ -1,53 +1,111 @@
 extern crate ansi_term;
 
 use self::ansi_term::Colour::Fixed;
-use self::ansi_term::Style;
-use crate::utils::Node;
 
 static UNITS: [char; 4] = ['T', 'G', 'M', 'K'];
 
-pub struct DisplayData {
+pub fn draw_it(
-    pub short_paths: bool,
+    permissions: bool,
-    pub is_reversed: bool,
+    short_paths: bool,
-    pub colors_on: bool,
+    depth: Option<u64>,
+    base_dirs: Vec<String>,
+    to_display: Vec<(String, u64)>,
+) -> () {
+    if !permissions {
+        eprintln!("Did not have permissions for all directories");
     }
 
-impl DisplayData {
+    for f in base_dirs {
-    fn get_first_chars(&self) -> &str {
+        display_node(f, &to_display, true, short_paths, depth, "")
-        if self.is_reversed {
-            "─┴"
-        } else {
-            "─┬"
     }
 }
 
-    #[allow(clippy::collapsible_if)]
+fn get_size(nodes: &Vec<(String, u64)>, node_to_print: &String) -> Option<u64> {
-    fn get_tree_chars(
+    for &(ref k, ref v) in nodes.iter() {
-        &self,
+        if *k == *node_to_print {
-        num_siblings: u64,
+            return Some(*v);
-        max_siblings: u64,
-        has_children: bool,
-    ) -> &'static str {
-        if self.is_reversed {
-            if num_siblings == max_siblings - 1 {
-                if has_children {
-                    "┌─┴"
-                } else {
-                    "┌──"
         }
-            } else if has_children {
-                "├─┴"
-            } else {
-                "├──"
     }
+    None
+}
+
+fn display_node<S: Into<String>>(
+    node_to_print: String,
+    to_display: &Vec<(String, u64)>,
+    is_biggest: bool,
+    short_paths: bool,
+    depth: Option<u64>,
+    indentation_str: S,
+) {
+    let new_depth = match depth {
+        None => None,
+        Some(0) => return,
+        Some(d) => Some(d - 1),
+    };
+    match get_size(to_display, &node_to_print) {
+        None => println!("Can not find path: {}", node_to_print),
+        Some(size) => {
+            let mut is = indentation_str.into();
+            let ntp: &str = node_to_print.as_ref();
+
+            print_this_node(ntp, size, is_biggest, short_paths, is.as_ref());
+
+            is = is.replace("└─┬", "  ");
+            is = is.replace("└──", "  ");
+            is = is.replace("├──", "│ ");
+            is = is.replace("├─┬", "│ ");
+
+            let printable_node_slashes = node_to_print.matches('/').count();
+
+            let mut num_siblings = to_display.iter().fold(0, |a, b| {
+                if b.0.starts_with(ntp) && b.0.matches('/').count() == printable_node_slashes + 1 {
+                    a + 1
                 } else {
+                    a
+                }
+            });
+
+            let mut is_biggest = true;
+            for &(ref k, _) in to_display.iter() {
+                if k.starts_with(ntp) && k.matches('/').count() == printable_node_slashes + 1 {
+                    num_siblings -= 1;
+
+                    let mut has_children = false;
+                    if new_depth.is_none() || new_depth.unwrap() != 1 {
+                        for &(ref k2, _) in to_display.iter() {
+                            let kk: &str = k.as_ref();
+                            if k2.starts_with(kk)
+                                && k2.matches('/').count() == printable_node_slashes + 2
+                            {
+                                has_children = true;
+                            }
+                        }
+                    }
+
+                    display_node(
+                        k.to_string(),
+                        to_display,
+                        is_biggest,
+                        short_paths,
+                        new_depth,
+                        is.to_string() + get_tree_chars(num_siblings, has_children),
+                    );
+                    is_biggest = false;
+                }
+            }
+        }
+    }
+}
+
+fn get_tree_chars(num_siblings: u64, has_children: bool) -> &'static str {
     if num_siblings == 0 {
         if has_children {
             "└─┬"
         } else {
             "└──"
         }
-            } else if has_children {
+    } else {
+        if has_children {
             "├─┬"
         } else {
             "├──"
@@ -55,121 +113,46 @@ impl DisplayData {
     }
 }
 
-    fn is_biggest(&self, num_siblings: u64, max_siblings: u64) -> bool {
-        if self.is_reversed {
-            num_siblings == 0
-        } else {
-            num_siblings == max_siblings - 1
-        }
-    }
-
-    fn get_children_from_node(&self, node: Node) -> impl Iterator<Item = Node> {
-        if self.is_reversed {
-            let n: Vec<Node> = node.children.into_iter().rev().map(|a| a).collect();
-            n.into_iter()
-        } else {
-            node.children.into_iter()
-        }
-    }
-}
-
-pub fn draw_it(
-    permissions: bool,
-    use_full_path: bool,
-    is_reversed: bool,
-    no_colors: bool,
-    root_node: Node,
-) {
-    if !permissions {
-        eprintln!("Did not have permissions for all directories");
-    }
-    let display_data = DisplayData {
-        short_paths: !use_full_path,
-        is_reversed,
-        colors_on: !no_colors,
-    };
-
-    for c in display_data.get_children_from_node(root_node) {
-        let first_tree_chars = display_data.get_first_chars();
-        display_node(c, true, first_tree_chars, &display_data)
-    }
-}
-
-fn display_node(node: Node, is_biggest: bool, indent: &str, display_data: &DisplayData) {
-    let mut num_siblings = node.children.len() as u64;
-    let max_sibling = num_siblings;
-    let new_indent = clean_indentation_string(indent);
-    let name = node.name.clone();
-    let size = node.size;
-
-    if !display_data.is_reversed {
-        print_this_node(&*name, size, is_biggest, display_data, indent);
-    }
-
-    for c in display_data.get_children_from_node(node) {
-        num_siblings -= 1;
-        let chars = display_data.get_tree_chars(num_siblings, max_sibling, !c.children.is_empty());
-        let is_biggest = display_data.is_biggest(num_siblings, max_sibling);
-        let full_indent = new_indent.clone() + chars;
-        display_node(c, is_biggest, &*full_indent, display_data)
-    }
-
-    if display_data.is_reversed {
-        print_this_node(&*name, size, is_biggest, display_data, indent);
-    }
-}
-
-fn clean_indentation_string(s: &str) -> String {
-    let mut is: String = s.into();
-    // For reversed:
-    is = is.replace("┌─┴", "  ");
-    is = is.replace("┌──", "  ");
-    is = is.replace("├─┴", "│ ");
-    is = is.replace("─┴", " ");
-    // For normal
-    is = is.replace("└─┬", "  ");
-    is = is.replace("└──", "  ");
-    is = is.replace("├─┬", "│ ");
-    is = is.replace("─┬", " ");
-    // For both
-    is = is.replace("├──", "│ ");
-    is
-}
-
 fn print_this_node(
-    name: &str,
+    node_name: &str,
     size: u64,
     is_biggest: bool,
-    display_data: &DisplayData,
+    short_paths: bool,
     indentation: &str,
 ) {
     let pretty_size = format!("{:>5}", human_readable_number(size),);
     println!(
         "{}",
-        format_string(name, is_biggest, display_data, &*pretty_size, indentation)
+        format_string(
+            node_name,
+            is_biggest,
+            short_paths,
+            pretty_size.as_ref(),
+            indentation
+        )
     )
 }
 
 pub fn format_string(
     dir_name: &str,
     is_biggest: bool,
-    display_data: &DisplayData,
+    short_paths: bool,
     size: &str,
     indentation: &str,
 ) -> String {
     let printable_name = {
-        if display_data.short_paths {
+        if short_paths && dir_name.contains('/') {
-            dir_name.split('/').last().unwrap_or(dir_name)
+            dir_name.split('/').last().unwrap()
         } else {
             dir_name
         }
     };
     format!(
         "{} {} {}",
-        if is_biggest && display_data.colors_on {
+        if is_biggest {
             Fixed(196).paint(size)
         } else {
-            Style::new().paint(size)
+            Fixed(7).paint(size)
         },
         indentation,
         printable_name,

src/main.rs

@@ -1,21 +1,20 @@
 #[macro_use]
 extern crate clap;
+extern crate assert_cli;
+extern crate walkdir;
 
 use self::display::draw_it;
-use crate::utils::is_a_parent_of;
 use clap::{App, AppSettings, Arg};
-use utils::{find_big_ones, get_dir_tree, simplify_dir_names, sort, trim_deep_ones, Node};
+use std::io::{self, Write};
+use utils::{find_big_ones, get_dir_tree, sort};
 
 mod display;
 mod utils;
 
-static DEFAULT_NUMBER_OF_LINES: usize = 20;
+static DEFAULT_NUMBER_OF_LINES: &'static str = "20";
 
 fn main() {
-    let def_num_str = DEFAULT_NUMBER_OF_LINES.to_string();
     let options = App::new("Dust")
-        .about("Like du but more intuitive")
-        .version(crate_version!())
         .setting(AppSettings::TrailingVarArg)
         .arg(
             Arg::with_name("depth")
@@ -24,20 +23,13 @@ fn main() {
                 .help("Depth to show")
                 .takes_value(true),
         )
-        .arg(
-            Arg::with_name("threads")
-                .short("t")
-                .long("threads")
-                .help("Number of threads to spawn simultaneously")
-                .takes_value(true),
-        )
         .arg(
             Arg::with_name("number_of_lines")
                 .short("n")
                 .long("number-of-lines")
                 .help("Number of lines of output to show")
                 .takes_value(true)
-                .default_value(def_num_str.as_ref()),
+                .default_value(DEFAULT_NUMBER_OF_LINES),
         )
         .arg(
             Arg::with_name("display_full_paths")
@@ -51,109 +43,56 @@ fn main() {
                 .long("apparent-size")
                 .help("If set will use file length. Otherwise we use blocks"),
         )
-        .arg(
-            Arg::with_name("reverse")
-                .short("r")
-                .long("reverse")
-                .help("If applied tree will be printed upside down (biggest lowest)"),
-        )
-        .arg(
-            Arg::with_name("no_colors")
-                .short("c")
-                .long("no_colors")
-                .help("If applied no colors will be printed (normally largest directories are marked in red"),
-        )
         .arg(Arg::with_name("inputs").multiple(true))
         .get_matches();
 
-    let target_dirs = {
+    let filenames = {
         match options.values_of("inputs") {
             None => vec!["."],
             Some(r) => r.collect(),
         }
     };
 
-    let number_of_lines = match value_t!(options.value_of("number_of_lines"), usize) {
+    let number_of_lines = value_t!(options.value_of("number_of_lines"), usize).unwrap();
-        Ok(v) => v,
+    let depth = {
-        Err(_) => {
+        if options.is_present("depth") {
-            eprintln!("Ignoring bad value for number_of_lines");
+            match value_t!(options.value_of("depth"), u64) {
-            DEFAULT_NUMBER_OF_LINES
+                Ok(v) => Some(v + 1),
+                Err(_) => None,
+            }
+        } else {
+            None
         }
     };
-
+    if options.is_present("depth")
-    let threads = options.value_of("threads").and_then(|threads| {
+        && options.value_of("number_of_lines").unwrap() != DEFAULT_NUMBER_OF_LINES
-        threads
+    {
-            .parse::<usize>()
+        io::stderr()
-            .map_err(|_| eprintln!("Ignoring bad value for threads: {:?}", threads))
+            .write(b"Use either -n for number of directories to show. Or -d for depth. Not both")
-            .ok()
+            .expect("Error writing to stderr. Oh the irony!");
-    });
-
-    let depth = options.value_of("depth").and_then(|depth| {
-        depth
-            .parse::<u64>()
-            .map(|v| v + 1)
-            .map_err(|_| eprintln!("Ignoring bad value for depth"))
-            .ok()
-    });
-    if options.is_present("depth") && number_of_lines != DEFAULT_NUMBER_OF_LINES {
-        eprintln!("Use either -n or -d. Not both");
         return;
     }
 
     let use_apparent_size = options.is_present("display_apparent_size");
+    let use_full_path = options.is_present("display_full_paths");
 
-    let simplified_dirs = simplify_dir_names(target_dirs);
+    let (permissions, nodes, top_level_names) = get_dir_tree(&filenames, use_apparent_size);
-    let (permissions, nodes) = get_dir_tree(&simplified_dirs, use_apparent_size, threads);
     let sorted_data = sort(nodes);
     let biggest_ones = {
-        match depth {
+        if depth.is_none() {
-            None => find_big_ones(sorted_data, number_of_lines + simplified_dirs.len()),
+            find_big_ones(sorted_data, number_of_lines)
-            Some(d) => trim_deep_ones(sorted_data, d, &simplified_dirs),
+        } else {
+            sorted_data
         }
     };
-    let tree = build_tree(biggest_ones, depth);
-
     draw_it(
         permissions,
-        options.is_present("display_full_paths"),
+        !use_full_path,
-        options.is_present("reverse"),
+        depth,
-        options.is_present("no_colors"),
+        top_level_names,
-        tree,
+        biggest_ones,
     );
 }
 
-fn build_tree(biggest_ones: Vec<(String, u64)>, depth: Option<u64>) -> Node {
-    let mut top_parent = Node::default();
-
-    // assume sorted order
-    for b in biggest_ones {
-        let n = Node {
-            name: b.0,
-            size: b.1,
-            children: Vec::default(),
-        };
-        recursively_build_tree(&mut top_parent, n, depth);
-        top_parent.children.sort_unstable()
-    }
-    top_parent
-}
-
-fn recursively_build_tree(parent_node: &mut Node, new_node: Node, depth: Option<u64>) {
-    let new_depth = match depth {
-        None => None,
-        Some(0) => return,
-        Some(d) => Some(d - 1),
-    };
-    if let Some(c) = parent_node
-        .children
-        .iter_mut()
-        .find(|c| is_a_parent_of(&c.name, &new_node.name))
-    {
-        recursively_build_tree(c, new_node, new_depth);
-    } else {
-        parent_node.children.push(new_node);
-    }
-}
-
 #[cfg(test)]
 mod tests;

src/test_dir2/dir/hello

@@ -1 +0,0 @@
-hello

src/test_dir2/dir_name_clash

@@ -1 +0,0 @@
-hello

src/test_dir2/dir_substring/hello

@@ -1 +0,0 @@
-hello

src/tests.rs

@@ -1,13 +1,14 @@
+extern crate ansi_term;
+extern crate tempfile;
+use self::tempfile::Builder;
+use self::tempfile::TempDir;
 use super::*;
-use crate::display::DisplayData;
 use display::format_string;
 use std::fs::File;
 use std::io::Write;
 use std::panic;
 use std::path::PathBuf;
 use std::process::Command;
-use tempfile::Builder;
-use tempfile::TempDir;
 
 #[test]
 pub fn test_main() {
@@ -27,94 +28,69 @@ pub fn test_main_long_paths() {
         .unwrap();
 }
 
-#[test]
-pub fn test_main_multi_arg() {
-    assert_cli::Assert::main_binary()
-        .with_args(&["src/test_dir/many/", "src/test_dir/", "src/test_dir"])
-        .stdout()
-        .is(main_output(true))
-        .unwrap();
-}
-
 #[cfg(target_os = "macos")]
 fn main_output(short_paths: bool) -> String {
-    let d = DisplayData {
-        short_paths,
-        is_reversed: false,
-        colors_on: true,
-    };
     format!(
         "{}
 {}
 {}
 {}",
-        format_string("src/test_dir", true, &d, " 4.0K", "─┬"),
+        format_string("src/test_dir", true, short_paths, " 4.0K", ""),
-        format_string("src/test_dir/many", true, &d, " 4.0K", " └─┬",),
+        format_string("src/test_dir/many", true, short_paths, " 4.0K", "└─┬",),
-        format_string("src/test_dir/many/hello_file", true, &d, " 4.0K", "   ├──",),
+        format_string(
-        format_string("src/test_dir/many/a_file", false, &d, "   0B", "   └──",),
+            "src/test_dir/many/hello_file",
+            true,
+            short_paths,
+            " 4.0K",
+            "  ├──",
+        ),
+        format_string(
+            "src/test_dir/many/a_file",
+            false,
+            short_paths,
+            "   0B",
+            "  └──",
+        ),
     )
 }
 
 #[cfg(target_os = "linux")]
 fn main_output(short_paths: bool) -> String {
-    let d = DisplayData {
-        short_paths,
-        is_reversed: false,
-        colors_on: true,
-    };
     format!(
         "{}
 {}
 {}
 {}",
-        format_string("src/test_dir", true, &d, "  12K", "─┬"),
+        format_string("src/test_dir", true, short_paths, "  12K", ""),
-        format_string("src/test_dir/many", true, &d, " 8.0K", " └─┬",),
+        format_string("src/test_dir/many", true, short_paths, " 8.0K", "└─┬",),
-        format_string("src/test_dir/many/hello_file", true, &d, " 4.0K", "   ├──",),
+        format_string(
-        format_string("src/test_dir/many/a_file", false, &d, "   0B", "   └──",),
+            "src/test_dir/many/hello_file",
+            true,
+            short_paths,
+            " 4.0K",
+            "  ├──",
+        ),
+        format_string(
+            "src/test_dir/many/a_file",
+            false,
+            short_paths,
+            "   0B",
+            "  └──",
+        ),
     )
 }
 
-#[test]
-pub fn test_no_color_flag() {
-    assert_cli::Assert::main_binary()
-        .with_args(&["-c", "src/test_dir/"])
-        .stdout()
-        .is(no_color_flag_output())
-        .unwrap();
-}
-
-#[cfg(target_os = "macos")]
-fn no_color_flag_output() -> String {
-    "
- 4.0K ─┬ test_dir
- 4.0K  └─┬ many
- 4.0K    ├── hello_file
-   0B    └── a_file
-    "
-    .to_string()
-}
-
-#[cfg(target_os = "linux")]
-fn no_color_flag_output() -> String {
-    "
-  12K ─┬ test_dir
- 8.0K  └─┬ many
- 4.0K    ├── hello_file
-   0B    └── a_file
-    "
-    .to_string()
-}
-
 #[test]
 pub fn test_apparent_size() {
-    let d = DisplayData {
-        short_paths: true,
-        is_reversed: false,
-        colors_on: true,
-    };
     let r = format!(
         "{}",
-        format_string("src/test_dir/many/hello_file", true, &d, "   6B", "   ├──",),
+        format_string(
+            "src/test_dir/many/hello_file",
+            true,
+            true,
+            "   6B",
+            "  ├──",
+        ),
     );
 
     assert_cli::Assert::main_binary()
@@ -124,38 +100,7 @@ pub fn test_apparent_size() {
         .unwrap();
 }
 
-#[test]
+fn build_temp_file(dir: &TempDir) -> (PathBuf) {
-pub fn test_reverse_flag() {
-    // variable names the same length make the output easier to read
-    let a = "    ┌── a_file";
-    let b = "    ├── hello_file";
-    let c = "  ┌─┴ many";
-    let d = " ─┴ test_dir";
-
-    assert_cli::Assert::main_binary()
-        .with_args(&["-r", "src/test_dir"])
-        .stdout()
-        .contains(a)
-        .stdout()
-        .contains(b)
-        .stdout()
-        .contains(c)
-        .stdout()
-        .contains(d)
-        .unwrap();
-}
-
-#[test]
-pub fn test_d_flag_works() {
-    // We should see the top level directory but not the sub dirs / files:
-    assert_cli::Assert::main_binary()
-        .with_args(&["-d", "1", "-s", "src/test_dir"])
-        .stdout()
-        .doesnt_contain("hello_file")
-        .unwrap();
-}
-
-fn build_temp_file(dir: &TempDir) -> PathBuf {
     let file_path = dir.path().join("notes.txt");
     let mut file = File::create(&file_path).unwrap();
     writeln!(file, "I am a temp file").unwrap();
@@ -178,21 +123,41 @@ pub fn test_soft_sym_link() {
         .output();
     assert!(c.is_ok());
 
-    let a = format!(" ─┬ {}", dir_s);
+    let r = soft_sym_link_output(dir_s, file_path_s, link_name_s);
-    let b = format!("  ├── {}", file_path_s);
-    let c = format!("  └── {}", link_name_s);
 
+    // We cannot guarantee which version will appear first.
+    // TODO: Consider adding predictable itteration order (sort file entries by name?)
     assert_cli::Assert::main_binary()
-        .with_args(&["-p", &dir_s])
+        .with_args(&[dir_s])
         .stdout()
-        .contains(a)
+        .contains(r)
-        .stdout()
-        .contains(b)
-        .stdout()
-        .contains(c)
         .unwrap();
 }
 
+#[cfg(target_os = "macos")]
+fn soft_sym_link_output(dir: &str, file_path: &str, link_name: &str) -> String {
+    format!(
+        "{}
+{}
+{}",
+        format_string(dir, true, true, " 8.0K", ""),
+        format_string(file_path, true, true, " 4.0K", "├──",),
+        format_string(link_name, false, true, " 4.0K", "└──",),
+    )
+}
+
+#[cfg(target_os = "linux")]
+fn soft_sym_link_output(dir: &str, file_path: &str, link_name: &str) -> String {
+    format!(
+        "{}
+{}
+{}",
+        format_string(dir, true, true, " 8.0K", ""),
+        format_string(file_path, true, true, " 4.0K", "├──",),
+        format_string(link_name, false, true, "   0B", "└──",),
+    )
+}
+
 // Hard links are ignored as the inode is the same as the file
 #[test]
 pub fn test_hard_sym_link() {
@@ -209,32 +174,61 @@ pub fn test_hard_sym_link() {
         .output();
     assert!(c.is_ok());
 
-    let a = format!(" ─┬ {}", dir_s);
+    let (r, r2) = hard_link_output(dir_s, file_path_s, link_name_s);
-    let b = format!("  └── {}", link_name_s);
-    let b2 = format!("  └── {}", file_path_s);
 
-    // Because this is a hard link the file and hard link look identical. Therefore
+    // Because this is a hard link the file and hard link look identicle. Therefore
     // we cannot guarantee which version will appear first.
+    // TODO: Consider adding predictable itteration order (sort file entries by name?)
     let result = panic::catch_unwind(|| {
         assert_cli::Assert::main_binary()
-            .with_args(&["-p", dir_s])
+            .with_args(&[dir_s])
             .stdout()
-            .contains(a.clone())
+            .contains(r)
-            .stdout()
-            .contains(b)
             .unwrap();
     });
     if result.is_err() {
         assert_cli::Assert::main_binary()
-            .with_args(&["-p", dir_s])
+            .with_args(&[dir_s])
             .stdout()
-            .contains(a)
+            .contains(r2)
-            .stdout()
-            .contains(b2)
             .unwrap();
     }
 }
 
+#[cfg(target_os = "macos")]
+fn hard_link_output(dir_s: &str, file_path_s: &str, link_name_s: &str) -> (String, String) {
+    let r = format!(
+        "{}
+{}",
+        format_string(dir_s, true, true, " 4.0K", ""),
+        format_string(file_path_s, true, true, " 4.0K", "└──")
+    );
+    let r2 = format!(
+        "{}
+{}",
+        format_string(dir_s, true, true, " 4.0K", ""),
+        format_string(link_name_s, true, true, " 4.0K", "└──")
+    );
+    (r, r2)
+}
+
+#[cfg(target_os = "linux")]
+fn hard_link_output(dir_s: &str, file_path_s: &str, link_name_s: &str) -> (String, String) {
+    let r = format!(
+        "{}
+{}",
+        format_string(dir_s, true, true, " 8.0K", ""),
+        format_string(file_path_s, true, true, " 4.0K", "└──")
+    );
+    let r2 = format!(
+        "{}
+{}",
+        format_string(dir_s, true, true, " 8.0K", ""),
+        format_string(link_name_s, true, true, " 4.0K", "└──")
+    );
+    (r, r2)
+}
+
 //Check we don't recurse down an infinite symlink tree
 #[test]
 pub fn test_recursive_sym_link() {
@@ -251,50 +245,30 @@ pub fn test_recursive_sym_link() {
         .output();
     assert!(c.is_ok());
 
-    let a = format!(" ─┬ {}", dir_s);
-    let b = format!("  └── {}", link_name_s);
-
     assert_cli::Assert::main_binary()
-        .with_args(&["-p", dir_s])
+        .with_args(&[dir_s])
         .stdout()
-        .contains(a)
+        .contains(recursive_sym_link_output(dir_s, link_name_s))
-        .stdout()
-        .contains(b)
         .unwrap();
 }
 
-// Check against directories and files whos names are substrings of each other
-#[test]
-pub fn test_substring_of_names() {
-    assert_cli::Assert::main_binary()
-        .with_args(&["-c", "src/test_dir2"])
-        .stdout()
-        .is(no_substring_of_names_output())
-        .unwrap();
-}
-
-#[cfg(target_os = "linux")]
-fn no_substring_of_names_output() -> String {
-    "
-  24K ─┬ test_dir2
- 8.0K  ├─┬ dir
- 4.0K  │ └── hello
- 8.0K  ├─┬ dir_substring
- 4.0K  │ └── hello
- 4.0K  └── dir_name_clash
-    "
-    .into()
-}
-
 #[cfg(target_os = "macos")]
-fn no_substring_of_names_output() -> String {
+fn recursive_sym_link_output(dir: &str, link_name: &str) -> String {
-    "
+    format!(
-  12K ─┬ test_dir2
+        "{}
- 4.0K  ├─┬ dir
+{}",
- 4.0K  │ └── hello
+        format_string(dir, true, true, " 4.0K", ""),
- 4.0K  ├── dir_name_clash
+        format_string(link_name, true, true, " 4.0K", "└──",),
- 4.0K  └─┬ dir_substring
+    )
- 4.0K    └── hello
-    "
-    .into()
 }
+#[cfg(target_os = "linux")]
+fn recursive_sym_link_output(dir: &str, link_name: &str) -> String {
+    format!(
+        "{}
+{}",
+        format_string(dir, true, true, " 4.0K", ""),
+        format_string(link_name, true, true, "   0B", "└──",),
+    )
+}
+
+// TODO: add test for bad path

src/utils/mod.rs

@@ -1,116 +1,56 @@
-use std::cmp::Ordering;
 use std::collections::HashMap;
 use std::collections::HashSet;
+use std::cmp::Ordering;
 
-use jwalk::WalkDir;
+use walkdir::WalkDir;
+
+use std::path::Path;
+use std::path::PathBuf;
 
 mod platform;
 use self::platform::*;
 
-#[derive(Debug, Default, Eq)]
-pub struct Node {
-    pub name: String,
-    pub size: u64,
-    pub children: Vec<Node>,
-}
-
-impl Ord for Node {
-    fn cmp(&self, other: &Self) -> Ordering {
-        if self.size == other.size {
-            self.name.cmp(&other.name)
-        } else {
-            self.size.cmp(&other.size)
-        }
-    }
-}
-
-impl PartialOrd for Node {
-    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        Some(self.cmp(other))
-    }
-}
-
-impl PartialEq for Node {
-    fn eq(&self, other: &Self) -> bool {
-        self.name == other.name && self.size == other.size && self.children == other.children
-    }
-}
-
-pub fn is_a_parent_of(parent: &str, child: &str) -> bool {
-    child.starts_with(parent) && child.chars().nth(parent.chars().count()) == Some('/')
-}
-
-pub fn simplify_dir_names(filenames: Vec<&str>) -> HashSet<String> {
-    let mut top_level_names: HashSet<String> = HashSet::with_capacity(filenames.len());
-    let mut to_remove: Vec<String> = Vec::with_capacity(filenames.len());
-
-    for t in filenames {
-        let top_level_name = strip_end_slash(t);
-        let mut can_add = true;
-
-        for tt in top_level_names.iter() {
-            if is_a_parent_of(&top_level_name, tt) {
-                to_remove.push(tt.to_string());
-            } else if is_a_parent_of(tt, &top_level_name) {
-                can_add = false;
-            }
-        }
-        to_remove.sort_unstable();
-        top_level_names.retain(|tr| to_remove.binary_search(tr).is_err());
-        to_remove.clear();
-        if can_add {
-            top_level_names.insert(strip_end_slash(t).to_owned());
-        }
-    }
-
-    top_level_names
-}
-
 pub fn get_dir_tree(
-    top_level_names: &HashSet<String>,
+    filenames: &Vec<&str>,
     apparent_size: bool,
-    threads: Option<usize>,
+) -> (bool, HashMap<String, u64>, Vec<String>) {
-) -> (bool, HashMap<String, u64>) {
     let mut permissions = 0;
     let mut inodes: HashSet<(u64, u64)> = HashSet::new();
     let mut data: HashMap<String, u64> = HashMap::new();
+    let mut top_level_names = Vec::new();
 
-    for b in top_level_names.iter() {
+    for b in filenames {
+        let top_level_name = strip_end_slashes(b);
         examine_dir(
-            &b,
+            &Path::new(&top_level_name).to_path_buf(),
             apparent_size,
             &mut inodes,
             &mut data,
             &mut permissions,
-            threads,
         );
+        top_level_names.push(top_level_name);
     }
-    (permissions == 0, data)
+    (permissions == 0, data, top_level_names)
 }
 
-pub fn strip_end_slash(mut new_name: &str) -> &str {
+fn strip_end_slashes(s: &str) -> String {
-    while (new_name.ends_with('/') || new_name.ends_with("/.")) && new_name.len() > 1 {
+    let mut new_name = String::from(s);
-        new_name = &new_name[..new_name.len() - 1];
+    while new_name.chars().last() == Some('/') && new_name.len() != 1 {
+        new_name.pop();
     }
     new_name
 }
 
 fn examine_dir(
-    top_dir: &str,
+    top_dir: &PathBuf,
     apparent_size: bool,
     inodes: &mut HashSet<(u64, u64)>,
     data: &mut HashMap<String, u64>,
-    file_count_no_permission: &mut u64,
+    permissions: &mut u64,
-    threads: Option<usize>,
 ) {
-    let mut iter = WalkDir::new(top_dir)
+    for entry in WalkDir::new(top_dir) {
-        .preload_metadata(true)
+        match entry {
-        .skip_hidden(false);
+            Ok(e) => {
-    if let Some(threads_to_start) = threads {
-        iter = iter.num_threads(threads_to_start);
-    }
-    for entry in iter {
-        if let Ok(e) = entry {
                 let maybe_size_and_inode = get_metadata(&e, apparent_size);
 
                 match maybe_size_and_inode {
@@ -123,25 +63,25 @@ fn examine_dir(
                                 inodes.insert(inode_dev_pair);
                             }
                         }
-                    // This path and all its parent paths have their counter incremented
+                        let mut e_path = e.path().to_path_buf();
-                    for path_name in e.path().ancestors() {
+                        loop {
-                        let path_name = path_name.to_string_lossy();
+                            let path_name = e_path.to_string_lossy().to_string();
-                        let s = data.entry(path_name.to_string()).or_insert(0);
+                            let s = data.entry(path_name).or_insert(0);
                             *s += size;
-                        if path_name == top_dir {
+                            if e_path == *top_dir {
                                 break;
                             }
+                            e_path.pop();
                         }
                     }
-                None => *file_count_no_permission += 1,
+                    None => *permissions += 1,
                 }
-        } else {
+            }
-            *file_count_no_permission += 1
+            _ => {}
         }
     }
 }
-
+pub fn compare_tuple(a :&(String, u64), b: &(String, u64)) -> Ordering {
-pub fn sort_by_size_first_name_second(a: &(String, u64), b: &(String, u64)) -> Ordering {
     let result = b.1.cmp(&a.1);
     if result == Ordering::Equal {
         a.0.cmp(&b.0)
@@ -150,86 +90,16 @@ pub fn sort_by_size_first_name_second(a: &(String, u64), b: &(String, u64)) -> O
     }
 }
 
-pub fn sort(data: HashMap<String, u64>) -> Vec<(String, u64)> {
+pub fn sort<'a>(data: HashMap<String, u64>) -> Vec<(String, u64)> {
     let mut new_l: Vec<(String, u64)> = data.iter().map(|(a, b)| (a.clone(), *b)).collect();
-    new_l.sort_unstable_by(sort_by_size_first_name_second);
+    new_l.sort_by(|a, b| compare_tuple(&a, &b));
     new_l
 }
 
-pub fn find_big_ones(new_l: Vec<(String, u64)>, max_to_show: usize) -> Vec<(String, u64)> {
+pub fn find_big_ones<'a>(new_l: Vec<(String, u64)>, max_to_show: usize) -> Vec<(String, u64)> {
     if max_to_show > 0 && new_l.len() > max_to_show {
-        new_l[0..max_to_show].to_vec()
+        new_l[0..max_to_show + 1].to_vec()
     } else {
         new_l
     }
 }
-
-pub fn trim_deep_ones(
-    input: Vec<(String, u64)>,
-    max_depth: u64,
-    top_level_names: &HashSet<String>,
-) -> Vec<(String, u64)> {
-    let mut result: Vec<(String, u64)> = Vec::with_capacity(input.len() * top_level_names.len());
-
-    for name in top_level_names {
-        let my_max_depth = name.matches('/').count() + max_depth as usize;
-        let name_ref: &str = name.as_ref();
-
-        for &(ref k, ref v) in input.iter() {
-            if k.starts_with(name_ref) && k.matches('/').count() <= my_max_depth {
-                result.push((k.clone(), *v));
-            }
-        }
-    }
-    result
-}
-
-mod tests {
-    #[allow(unused_imports)]
-    use super::*;
-
-    #[test]
-    fn test_simplify_dir() {
-        let mut correct = HashSet::new();
-        correct.insert("a".to_string());
-        assert_eq!(simplify_dir_names(vec!["a"]), correct);
-    }
-
-    #[test]
-    fn test_simplify_dir_rm_subdir() {
-        let mut correct = HashSet::new();
-        correct.insert("a/b".to_string());
-        assert_eq!(simplify_dir_names(vec!["a/b", "a/b/c", "a/b/d/f"]), correct);
-    }
-
-    #[test]
-    fn test_simplify_dir_duplicates() {
-        let mut correct = HashSet::new();
-        correct.insert("a/b".to_string());
-        correct.insert("c".to_string());
-        assert_eq!(simplify_dir_names(vec!["a/b", "a/b//", "c", "c/"]), correct);
-    }
-    #[test]
-    fn test_simplify_dir_rm_subdir_and_not_substrings() {
-        let mut correct = HashSet::new();
-        correct.insert("b".to_string());
-        correct.insert("c/a/b".to_string());
-        correct.insert("a/b".to_string());
-        assert_eq!(simplify_dir_names(vec!["a/b", "c/a/b/", "b"]), correct);
-    }
-
-    #[test]
-    fn test_simplify_dir_dots() {
-        let mut correct = HashSet::new();
-        correct.insert("src".to_string());
-        assert_eq!(simplify_dir_names(vec!["src/."]), correct);
-    }
-
-    #[test]
-    fn test_simplify_dir_substring_names() {
-        let mut correct = HashSet::new();
-        correct.insert("src".to_string());
-        correct.insert("src_v2".to_string());
-        assert_eq!(simplify_dir_names(vec!["src/", "src_v2"]), correct);
-    }
-}

src/utils/platform.rs

@@ -1,4 +1,4 @@
-use jwalk::DirEntry;
+use walkdir::DirEntry;
 
 fn get_block_size() -> u64 {
     // All os specific implementations of MetatdataExt seem to define a block as 512 bytes
@@ -6,25 +6,58 @@ fn get_block_size() -> u64 {
     512
 }
 
-#[cfg(target_family = "unix")]
+#[cfg(target_os = "linux")]
 pub fn get_metadata(d: &DirEntry, use_apparent_size: bool) -> Option<(u64, Option<(u64, u64)>)> {
-    use std::os::unix::fs::MetadataExt;
+    use std::os::linux::fs::MetadataExt;
-    d.metadata.as_ref().unwrap().as_ref().ok().map(|md| {
+    match d.metadata().ok() {
-        let inode = Some((md.ino(), md.dev()));
+        Some(md) => {
+            let inode = Some((md.st_ino(), md.st_dev()));
             if use_apparent_size {
-            (md.len(), inode)
+                Some((md.len(), inode))
             } else {
-            (md.blocks() * get_block_size(), inode)
+                Some((md.st_blocks() * get_block_size(), inode))
+            }
+        }
+        None => None,
     }
-    })
 }
 
-#[cfg(not(target_family = "unix"))]
+#[cfg(target_os = "unix")]
-pub fn get_metadata(d: &DirEntry, _apparent: bool) -> Option<(u64, Option<(u64, u64)>)> {
+pub fn get_metadata(d: &DirEntry, use_apparent_size: bool) -> Option<(u64, Option<(u64, u64)>)> {
-    d.metadata
+    use std::os::unix::fs::MetadataExt;
-        .as_ref()
+    match d.metadata().ok() {
-        .unwrap()
+        Some(md) => {
-        .as_ref()
+            let inode = Some((md.ino(), md.dev()));
-        .ok()
+            if use_apparent_size {
-        .map(|md| (md.len(), None))
+                Some((md.len(), inode))
+            } else {
+                Some((md.blocks() * get_block_size(), inode))
+            }
+        }
+        None => None,
+    }
+}
+
+#[cfg(target_os = "macos")]
+pub fn get_metadata(d: &DirEntry, use_apparent_size: bool) -> Option<(u64, Option<(u64, u64)>)> {
+    use std::os::macos::fs::MetadataExt;
+    match d.metadata().ok() {
+        Some(md) => {
+            let inode = Some((md.st_ino(), md.st_dev()));
+            if use_apparent_size {
+                Some((md.len(), inode))
+            } else {
+                Some((md.st_blocks() * get_block_size(), inode))
+            }
+        }
+        None => None,
+    }
+}
+
+#[cfg(not(any(target_os = "linux", target_os = "unix", target_os = "macos")))]
+pub fn get_metadata(d: &DirEntry, _apparent: bool) -> Option<(u64, Option<(u64, u64)>)> {
+    match d.metadata().ok() {
+        Some(md) => Some((md.len(), None)),
+        None => None,
+    }
 }