Notes on how to publish

Install new release locally before pushing Noted here because I forget how to do this
Increment version
2025-12-08 22:00:39 -08:00 · 2020-08-02 14:26:33 +01:00 · 2020-08-02 14:26:33 +01:00 · 2020-08-02 11:47:12 +01:00 · 2020-06-29 13:21:28 +01:00 · 2020-06-29 01:00:11 +02:00
19 changed files with 1793 additions and 980 deletions
--- a/.github/workflows/CICD.yml
+++ b/.github/workflows/CICD.yml
@@ -0,0 +1,297 @@
+name: CICD
+
+# spell-checker:ignore CICD CODECOV MSVC MacOS Peltoche SHAs buildable clippy esac fakeroot gnueabihf halium libssl mkdir musl popd printf pushd rustfmt softprops toolchain
+
+env:
+  PROJECT_NAME: dust
+  PROJECT_DESC: "du + rust = dust"
+  PROJECT_AUTH: "bootandy"
+  RUST_MIN_SRV: "1.31.0"
+
+on: [push, pull_request]
+
+jobs:
+  style:
+    name: Style
+    runs-on: ${{ matrix.job.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        job:
+          - { os: ubuntu-latest }
+          - { os: macos-latest }
+          - { os: windows-latest }
+    steps:
+    - uses: actions/checkout@v1
+    - name: Initialize workflow variables
+      id: vars
+      shell: bash
+      run: |
+        # 'windows-latest' `cargo fmt` is bugged for this project (see reasons @ GH:rust-lang/rustfmt #3324, #3590, #3688 ; waiting for repair)
+        JOB_DO_FORMAT_TESTING="true"
+        case ${{ matrix.job.os }} in windows-latest) unset JOB_DO_FORMAT_TESTING ;; esac;
+        echo set-output name=JOB_DO_FORMAT_TESTING::${JOB_DO_FORMAT_TESTING:-<empty>/false}
+        echo ::set-output name=JOB_DO_FORMAT_TESTING::${JOB_DO_FORMAT_TESTING}
+        # target-specific options
+        # * CARGO_FEATURES_OPTION
+        CARGO_FEATURES_OPTION='' ;
+        if [ -n "${{ matrix.job.features }}" ]; then CARGO_FEATURES_OPTION='--features "${{ matrix.job.features }}"' ; fi
+        echo set-output name=CARGO_FEATURES_OPTION::${CARGO_FEATURES_OPTION}
+        echo ::set-output name=CARGO_FEATURES_OPTION::${CARGO_FEATURES_OPTION}
+    - name: Install `rust` toolchain
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        override: true
+        profile: minimal # minimal component installation (ie, no documentation)
+        components: rustfmt, clippy
+    - name: "`fmt` testing"
+      if: steps.vars.outputs.JOB_DO_FORMAT_TESTING
+      uses: actions-rs/cargo@v1
+      with:
+        command: fmt
+        args: --all -- --check
+    - name: "`clippy` testing"
+      if: success() || failure() # run regardless of prior step ("`fmt` testing") success/failure
+      uses: actions-rs/cargo@v1
+      with:
+        command: clippy
+        args: ${{ matrix.job.cargo-options }} ${{ steps.vars.outputs.CARGO_FEATURES_OPTION }} -- -D warnings
+
+  min_version:
+    name: MinSRV # Minimum supported rust version
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Install `rust` toolchain (v${{ env.RUST_MIN_SRV }})
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: ${{ env.RUST_MIN_SRV }}
+        profile: minimal # minimal component installation (ie, no documentation)
+    - name: Test
+      uses: actions-rs/cargo@v1
+      with:
+        command: test
+
+  build:
+    name: Build
+    runs-on: ${{ matrix.job.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        job:
+          # { os, target, cargo-options, features, use-cross, toolchain }
+          - { os: ubuntu-latest  , target: arm-unknown-linux-gnueabihf , use-cross: use-cross }
+          - { os: ubuntu-18.04   , target: i686-unknown-linux-gnu      , use-cross: use-cross }
+          - { os: ubuntu-18.04   , target: i686-unknown-linux-musl     , use-cross: use-cross }
+          - { os: ubuntu-18.04   , target: x86_64-unknown-linux-gnu    , use-cross: use-cross }
+          - { os: ubuntu-18.04   , target: x86_64-unknown-linux-musl   , use-cross: use-cross }
+          - { os: ubuntu-16.04   , target: x86_64-unknown-linux-gnu    , use-cross: use-cross }
+          - { os: macos-latest   , target: x86_64-apple-darwin         }
+          - { os: windows-latest , target: i686-pc-windows-gnu         }
+          - { os: windows-latest , target: i686-pc-windows-msvc        }
+          - { os: windows-latest , target: x86_64-pc-windows-gnu       } ## !maint: [rivy; 2020-01-21] may break due to rust bug; follow possible solution from GH:rust-lang/rust#47048 (refs: GH:rust-lang/rust#47048 , GH:rust-lang/rust#53454 , GH:bike-barn/hermit#172 )
+          - { os: windows-latest , target: x86_64-pc-windows-msvc      }
+    steps:
+    - uses: actions/checkout@v1
+    - name: Install any prerequisites
+      shell: bash
+      run: |
+        case ${{ matrix.job.target }} in
+          arm-unknown-linux-gnueabihf) sudo apt-get -y update ; sudo apt-get -y install gcc-arm-linux-gnueabihf ;;
+        esac
+    - name: Initialize workflow variables
+      id: vars
+      shell: bash
+      run: |
+        # toolchain
+        TOOLCHAIN="stable" ## default to "stable" toolchain
+        # * specify alternate TOOLCHAIN for *-pc-windows-gnu targets; gnu targets on Windows are broken for the standard *-pc-windows-msvc toolchain (refs: <https://github.com/rust-lang/rust/issues/47048>, <https://github.com/rust-lang/rust/issues/53454>, <https://github.com/rust-lang/cargo/issues/6754>)
+        case ${{ matrix.job.target }} in *-pc-windows-gnu) TOOLCHAIN="stable-${{ matrix.job.target }}" ;; esac;
+        # * use requested TOOLCHAIN if specified
+        if [ -n "${{ matrix.job.toolchain }}" ]; then TOOLCHAIN="${{ matrix.job.toolchain }}" ; fi
+        echo set-output name=TOOLCHAIN::${TOOLCHAIN}
+        echo ::set-output name=TOOLCHAIN::${TOOLCHAIN}
+        # staging directory
+        STAGING='_staging'
+        echo set-output name=STAGING::${STAGING}
+        echo ::set-output name=STAGING::${STAGING}
+        # determine EXE suffix
+        EXE_suffix="" ; case ${{ matrix.job.target }} in *-pc-windows-*) EXE_suffix=".exe" ;; esac;
+        echo set-output name=EXE_suffix::${EXE_suffix}
+        echo ::set-output name=EXE_suffix::${EXE_suffix}
+        # parse commit reference info
+        REF_NAME=${GITHUB_REF#refs/*/}
+        unset REF_BRANCH ; case ${GITHUB_REF} in refs/heads/*) REF_BRANCH=${GITHUB_REF#refs/heads/} ;; esac;
+        unset REF_TAG ; case ${GITHUB_REF} in refs/tags/*) REF_TAG=${GITHUB_REF#refs/tags/} ;; esac;
+        REF_SHAS=${GITHUB_SHA:0:8}
+        echo set-output name=REF_NAME::${REF_NAME}
+        echo set-output name=REF_BRANCH::${REF_BRANCH}
+        echo set-output name=REF_TAG::${REF_TAG}
+        echo set-output name=REF_SHAS::${REF_SHAS}
+        echo ::set-output name=REF_NAME::${REF_NAME}
+        echo ::set-output name=REF_BRANCH::${REF_BRANCH}
+        echo ::set-output name=REF_TAG::${REF_TAG}
+        echo ::set-output name=REF_SHAS::${REF_SHAS}
+        # parse target
+        unset TARGET_ARCH ; case ${{ matrix.job.target }} in arm-unknown-linux-gnueabihf) TARGET_ARCH=arm ;; i686-*) TARGET_ARCH=i686 ;; x86_64-*) TARGET_ARCH=x86_64 ;; esac;
+        echo set-output name=TARGET_ARCH::${TARGET_ARCH}
+        echo ::set-output name=TARGET_ARCH::${TARGET_ARCH}
+        unset TARGET_OS ; case ${{ matrix.job.target }} in *-linux-*) TARGET_OS=linux ;; *-apple-*) TARGET_OS=macos ;; *-windows-*) TARGET_OS=windows ;; esac;
+        echo set-output name=TARGET_OS::${TARGET_OS}
+        echo ::set-output name=TARGET_OS::${TARGET_OS}
+        # package name
+        PKG_suffix=".tar.gz" ; case ${{ matrix.job.target }} in *-pc-windows-*) PKG_suffix=".zip" ;; esac;
+        PKG_BASENAME=${PROJECT_NAME}-${REF_TAG:-$REF_SHAS}-${{ matrix.job.target }}
+        PKG_NAME=${PKG_BASENAME}${PKG_suffix}
+        echo set-output name=PKG_suffix::${PKG_suffix}
+        echo set-output name=PKG_BASENAME::${PKG_BASENAME}
+        echo set-output name=PKG_NAME::${PKG_NAME}
+        echo ::set-output name=PKG_suffix::${PKG_suffix}
+        echo ::set-output name=PKG_BASENAME::${PKG_BASENAME}
+        echo ::set-output name=PKG_NAME::${PKG_NAME}
+        # deployable tag? (ie, leading "vM" or "M"; M == version number)
+        unset DEPLOY ; if [[ $REF_TAG =~ ^[vV]?[0-9].* ]]; then DEPLOY='true' ; fi
+        echo set-output name=DEPLOY::${DEPLOY:-<empty>/false}
+        echo ::set-output name=DEPLOY::${DEPLOY}
+        # target-specific options
+        # * CARGO_FEATURES_OPTION
+        CARGO_FEATURES_OPTION='' ;
+        if [ -n "${{ matrix.job.features }}" ]; then CARGO_FEATURES_OPTION='--features "${{ matrix.job.features }}"' ; fi
+        echo set-output name=CARGO_FEATURES_OPTION::${CARGO_FEATURES_OPTION}
+        echo ::set-output name=CARGO_FEATURES_OPTION::${CARGO_FEATURES_OPTION}
+        # * CARGO_USE_CROSS (truthy)
+        CARGO_USE_CROSS='true' ; case '${{ matrix.job.use-cross }}' in ''|0|f|false|n|no) unset CARGO_USE_CROSS ;; esac;
+        echo set-output name=CARGO_USE_CROSS::${CARGO_USE_CROSS:-<empty>/false}
+        echo ::set-output name=CARGO_USE_CROSS::${CARGO_USE_CROSS}
+        # # * `arm` cannot be tested on ubuntu-* hosts (b/c testing is currently primarily done via comparison of target outputs with built-in outputs and the `arm` target is not executable on the host)
+        JOB_DO_TESTING="true"
+        case ${{ matrix.job.target }} in arm-*) unset JOB_DO_TESTING ;; esac;
+        echo set-output name=JOB_DO_TESTING::${JOB_DO_TESTING:-<empty>/false}
+        echo ::set-output name=JOB_DO_TESTING::${JOB_DO_TESTING}
+        # # * test only binary for arm-type targets
+        unset CARGO_TEST_OPTIONS
+        unset CARGO_TEST_OPTIONS ; case ${{ matrix.job.target }} in arm-*) CARGO_TEST_OPTIONS="--bin ${PROJECT_NAME}" ;; esac;
+        echo set-output name=CARGO_TEST_OPTIONS::${CARGO_TEST_OPTIONS}
+        echo ::set-output name=CARGO_TEST_OPTIONS::${CARGO_TEST_OPTIONS}
+        # * strip executable?
+        STRIP="strip" ; case ${{ matrix.job.target }} in arm-unknown-linux-gnueabihf) STRIP="arm-linux-gnueabihf-strip" ;; *-pc-windows-msvc) STRIP="" ;; esac;
+        echo set-output name=STRIP::${STRIP}
+        echo ::set-output name=STRIP::${STRIP}
+    - name: Create all needed build/work directories
+      shell: bash
+      run: |
+        mkdir -p '${{ steps.vars.outputs.STAGING }}'
+        mkdir -p '${{ steps.vars.outputs.STAGING }}/${{ steps.vars.outputs.PKG_BASENAME }}'
+    - name: rust toolchain ~ install
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: ${{ steps.vars.outputs.TOOLCHAIN }}
+        target: ${{ matrix.job.target }}
+        override: true
+        profile: minimal # minimal component installation (ie, no documentation)
+    - name: Info
+      shell: bash
+      run: |
+        gcc --version || true
+        rustup -V
+        rustup toolchain list
+        rustup default
+        cargo -V
+        rustc -V
+    - name: Build
+      uses: actions-rs/cargo@v1
+      with:
+        use-cross: ${{ steps.vars.outputs.CARGO_USE_CROSS }}
+        command: build
+        args: --release --target=${{ matrix.job.target }} ${{ matrix.job.cargo-options }} ${{ steps.vars.outputs.CARGO_FEATURES_OPTION }}
+    - name: Test
+      uses: actions-rs/cargo@v1
+      with:
+        use-cross: ${{ steps.vars.outputs.CARGO_USE_CROSS }}
+        command: test
+        args: --target=${{ matrix.job.target }} ${{ steps.vars.outputs.CARGO_TEST_OPTIONS}} ${{ matrix.job.cargo-options }} ${{ steps.vars.outputs.CARGO_FEATURES_OPTION }}
+    - name: Archive executable artifacts
+      uses: actions/upload-artifact@master
+      with:
+        name: ${{ env.PROJECT_NAME }}-${{ matrix.job.target }}
+        path: target/${{ matrix.job.target }}/release/${{ env.PROJECT_NAME }}${{ steps.vars.outputs.EXE_suffix }}
+    - name: Package
+      shell: bash
+      run: |
+        # binary
+        cp 'target/${{ matrix.job.target }}/release/${{ env.PROJECT_NAME }}${{ steps.vars.outputs.EXE_suffix }}' '${{ steps.vars.outputs.STAGING }}/${{ steps.vars.outputs.PKG_BASENAME }}/'
+        # `strip` binary (if needed)
+        if [ -n "${{ steps.vars.outputs.STRIP }}" ]; then "${{ steps.vars.outputs.STRIP }}" '${{ steps.vars.outputs.STAGING }}/${{ steps.vars.outputs.PKG_BASENAME }}/${{ env.PROJECT_NAME }}${{ steps.vars.outputs.EXE_suffix }}' ; fi
+        # README and LICENSE
+        cp README.md '${{ steps.vars.outputs.STAGING }}/${{ steps.vars.outputs.PKG_BASENAME }}/'
+        cp LICENSE '${{ steps.vars.outputs.STAGING }}/${{ steps.vars.outputs.PKG_BASENAME }}/'
+        # base compressed package
+        pushd '${{ steps.vars.outputs.STAGING }}/' >/dev/null
+        case ${{ matrix.job.target }} in
+          *-pc-windows-*) 7z -y a '${{ steps.vars.outputs.PKG_NAME }}' '${{ steps.vars.outputs.PKG_BASENAME }}'/* | tail -2 ;;
+          *) tar czf '${{ steps.vars.outputs.PKG_NAME }}' '${{ steps.vars.outputs.PKG_BASENAME }}'/* ;;
+        esac;
+        popd >/dev/null
+    - name: Publish
+      uses: softprops/action-gh-release@v1
+      if: steps.vars.outputs.DEPLOY
+      with:
+        files: |
+          ${{ steps.vars.outputs.STAGING }}/${{ steps.vars.outputs.PKG_NAME }}
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  ## fix! [rivy; 2020-22-01] `cargo tarpaulin` is unable to test this repo at the moment; alternate recipe or another testing framework?
+  # coverage:
+  #   name: Code Coverage
+  #   runs-on: ${{ matrix.job.os }}
+  #   strategy:
+  #     fail-fast: true
+  #     matrix:
+  #       # job: [ { os: ubuntu-latest }, { os: macos-latest }, { os: windows-latest } ]
+  #       job: [ { os: ubuntu-latest } ] ## cargo-tarpaulin is currently only available on linux
+  #   steps:
+  #   - uses: actions/checkout@v1
+  #   # - name: Reattach HEAD ## may be needed for accurate code coverage info
+  #   #   run: git checkout ${{ github.head_ref }}
+  #   - name: Initialize workflow variables
+  #     id: vars
+  #     shell: bash
+  #     run: |
+  #       # staging directory
+  #       STAGING='_staging'
+  #       echo set-output name=STAGING::${STAGING}
+  #       echo ::set-output name=STAGING::${STAGING}
+  #       # check for CODECOV_TOKEN availability (work-around for inaccessible 'secrets' object for 'if'; see <https://github.community/t5/GitHub-Actions/jobs-lt-job-id-gt-if-does-not-work-with-env-secrets/m-p/38549>)
+  #       unset HAS_CODECOV_TOKEN
+  #       if [ -n $CODECOV_TOKEN ]; then HAS_CODECOV_TOKEN='true' ; fi
+  #       echo set-output name=HAS_CODECOV_TOKEN::${HAS_CODECOV_TOKEN}
+  #       echo ::set-output name=HAS_CODECOV_TOKEN::${HAS_CODECOV_TOKEN}
+  #     env:
+  #       CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN }}"
+  #   - name: Create all needed build/work directories
+  #     shell: bash
+  #     run: |
+  #       mkdir -p '${{ steps.vars.outputs.STAGING }}/work'
+  #   - name: Install required packages
+  #     run: |
+  #       sudo apt-get -y install libssl-dev
+  #       pushd '${{ steps.vars.outputs.STAGING }}/work' >/dev/null
+  #       wget --no-verbose https://github.com/xd009642/tarpaulin/releases/download/0.9.3/cargo-tarpaulin-0.9.3-travis.tar.gz
+  #       tar xf cargo-tarpaulin-0.9.3-travis.tar.gz
+  #       cp cargo-tarpaulin "$(dirname -- "$(which cargo)")"/
+  #       popd >/dev/null
+  #   - name: Generate coverage
+  #     run: |
+  #       cargo tarpaulin --out Xml
+  #   - name: Upload coverage results (CodeCov.io)
+  #     # CODECOV_TOKEN (aka, "Repository Upload Token" for REPO from CodeCov.io) ## set via REPO/Settings/Secrets
+  #     # if: secrets.CODECOV_TOKEN (not supported {yet?}; see <https://github.community/t5/GitHub-Actions/jobs-lt-job-id-gt-if-does-not-work-with-env-secrets/m-p/38549>)
+  #     if: steps.vars.outputs.HAS_CODECOV_TOKEN
+  #     run: |
+  #       # CodeCov.io
+  #       cargo tarpaulin --out Xml
+  #       bash <(curl -s https://codecov.io/bash)
+  #     env:
+  #       CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN }}"
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,77 +0,0 @@
-# Based on the "trust" template v0.1.2
-# https://github.com/japaric/trust/tree/v0.1.2
-
-dist: trusty
-language: rust
-services: docker
-sudo: required
-
-# TODO Rust builds on stable by default, this can be
-# overridden on a case by case basis down below.
-
-env:
-  global:
-    # TODO Update this to match the name of your project.
-    - CRATE_NAME=dust
-
-matrix:
-  # TODO These are all the build jobs. Adjust as necessary. Comment out what you
-  # don't need
-  include:
-    # Linux
-    - env: TARGET=x86_64-unknown-linux-gnu
-
-    # OSX
-    - env: TARGET=x86_64-apple-darwin
-      os: osx
-
-before_install:
-  - set -e
-  - rustup self update
-
-install:
-  - sh ci/install.sh
-  - source ~/.cargo/env || true
-
-script:
-  - bash ci/script.sh
-
-after_script: set +e
-
-before_deploy:
-  - sh ci/before_deploy.sh
-
-deploy:
-  # TODO update `api_key.secure`
-  # - 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:
-#    secure: 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
-  api_key: $API_KEY
-  file_glob: true
-  file: $CRATE_NAME-$TRAVIS_TAG-$TARGET.*
-  on:
-    # TODO Here you can pick which targets will generate binary releases
-    # In this example, there are some targets that are tested using the stable
-    # and nightly channels. This condition makes sure there is only one release
-    # for such targets and that's generated using the stable channel
-    condition: $TRAVIS_RUST_VERSION = stable
-    tags: true
-  provider: releases
-  skip_cleanup: true
-
-cache: cargo
-before_cache:
-  # Travis can't cache files that are not readable by "others"
-  - chmod -R a+r $HOME/.cargo
-
-branches:
-  only:
-    # release tags
-    - /^v\d+\.\d+\.\d+.*$/
-    - master
-
-notifications:
-  email:
-    on_success: never
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,13 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "aho-corasick"
+version = "0.7.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ansi_term"
 version = "0.11.0"
@@ -9,192 +17,186 @@ dependencies = [
 ]

 [[package]]
-name = "approx"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "assert_cli"
-version = "0.5.4"
+name = "ansi_term"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "colored 1.8.0 (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 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "skeptic 0.13.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "assert_cmd"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "doc-comment 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "escargot 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "predicates 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "predicates-core 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "predicates-tree 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
 name = "atty"
-version = "0.2.13"
+version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hermit-abi 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
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--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,8 +1,9 @@
 [package]
 name = "du-dust"
 description = "A more intuitive version of du"
-version = "0.4.0"
+version = "0.5.2"
 authors = ["bootandy <bootandy@gmail.com>", "nebkor <code@ardent.nebcorp.com>"]
+edition = "2018"

 documentation = "https://github.com/bootandy/dust"
 homepage = "https://github.com/bootandy/dust"
@@ -20,9 +21,24 @@ name = "dust"
 path = "src/main.rs"

 [dependencies]
-ansi_term = "=0.11"
+ansi_term = "=0.12"
 clap = "=2.33"
-assert_cli = "=0.5"
-tempfile = "=3"
-walkdir = "=2"
+lscolors = "0.6.0"
+num_cpus = "1.12"
+terminal_size = "0.1.10"
+unicode-width = "0.1.7"
+ignore="0.4.12"
+crossbeam-channel = "0.4.2"
+walkdir="2.3"

+[target.'cfg(windows)'.dependencies]
+winapi-util = "0.1"
+
+[dev-dependencies]
+assert_cmd ="0.12"
+tempfile = "=3"
+
+
+[[test]]
+name = "integration"
+path = "tests/tests.rs"
--- a/README.md
+++ b/README.md
@@ -3,71 +3,58 @@

 # Dust

-du + rust = dust. Like du but more intuitive
+du + rust = dust. Like du but more intuitive.
+
+# Why
+
+Because I want an easy way to see where my disk is being used.
+
+# Demo
+![Example](media/snap.png)

 ## Install

-#### Cargo Install
+#### Cargo <a href="https://repology.org/project/dust-du/versions"><img src="https://repology.org/badge/vertical-allrepos/dust-du.svg" alt="Packaging status" align="right"></a>

-* cargo install du-dust
+* `cargo install du-dust`

-#### Download Install
+#### 🍺 Homebrew (Mac OS)

-* Download linux / mac binary from [Releases](https://github.com/bootandy/dust/releases)
-* unzip file: tar -xvf _downloaded_file.tar.gz_
-* move file to executable path: sudo mv dust /usr/local/bin/
+* `brew install dust`
+
+#### Download
+
+* Download Linux/Mac binary from [Releases](https://github.com/bootandy/dust/releases)
+* unzip file: `tar -xvf _downloaded_file.tar.gz`
+* move file to executable path: `sudo mv dust /usr/local/bin/`

 ## Overview

-Dust is meant to give you an instant overview of which directories are using disk space without requiring sort or head. Dust will print a maximum of 1 'Did not have permissions message'.
+Dust is meant to give you an instant overview of which directories are using disk space without requiring sort or head. Dust will print a maximum of one 'Did not have permissions message'.

-Dust will list the 20 biggest sub directories or files and will smartly recurse down the tree to find the larger ones. There is no need for a '-d' flag or a '-h' flag. The largest sub directory will have its size shown in *red*
-
-## Why?
-
-du has a number of ways of showing you what it finds, in terms of disk consumption, but really, there are only one or two ways you invoke it: with -h for “human readable” units, like 100G or 89k, or with -b for “bytes”. The former is generally used for a quick survey of a directory with a small number of things in it, and the latter for when you have a bunch and need to sort the output numerically, and you’re obligated to either further pass it into something like awk to turn bytes into the appropriate human-friendly unit like mega or gigabytes, or pipe thru sort and head while remembering the '-h' flag. Then once you have the top offenders, you recurse down into the largest one and repeat the process until you’ve found your cruft or gems and can move on.
-
-Dust assumes that’s what you wanted to do in the first place, and takes care of tracking the largest offenders in terms of actual size, and showing them to you with human-friendly units and in-context within the filetree.
+Dust will list a slightly-less-than-the-terminal-height number of the biggest subdirectories or files and will smartly recurse down the tree to find the larger ones. There is no need for a '-d' flag or a '-h' flag. The largest subdirectories will be colored.

 ## Usage

 ```
+Usage: dust
 Usage: dust <dir>
 Usage: dust <dir>  <another_dir> <and_more>
 Usage: dust -p <dir>  (full-path - does not shorten the path of the subdirectories)
 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)
+Usage: dust -n 30  <dir>  (shows 30 directories instead of the default)
+Usage: dust -d 3  <dir>  (shows 3 levels of subdirectories)
+Usage: dust -r  <dir>  (reverse order of output, with root at the lowest)
+Usage: dust -x  <dir>  (only show directories on the same filesystem)
+Usage: dust -X ignore  <dir>  (ignore all files and directories with the name 'ignore')
+Usage: dust -b <dir>  (do not show percentages or draw ASCII bars)
 ```

-```
-djin:git/dust> dust
- 1.2G  target
- 622M ├─┬ debug
- 445M │ ├── deps
-  70M │ ├── incremental
-  56M │ └── build
- 262M ├─┬ rls
- 262M │ └─┬ debug
- 203M │   ├── deps
-  56M │   └── build
- 165M ├─┬ package
- 165M │ └─┬ du-dust-0.2.4
- 165M │   └─┬ target
- 165M │     └─┬ debug
- 131M │       └── deps
- 165M └─┬ release
- 124M   └── deps
-```
-
-## Performance
-
-Dust is currently about 4 times slower than du.

 ## Alternatives

 * [NCDU](https://dev.yorhel.nl/ncdu)
+* [dutree](https://github.com/nachoparker/dutree)
 * du -d 1 -h | sort -h

 Note: Apparent-size is calculated slightly differently in dust to gdu. In dust each hard link is counted as using file_length space. In gdu only the first entry is counted.
--- a/ci/how2publish.txt
+++ b/ci/how2publish.txt
@@ -0,0 +1,9 @@
+# ----------- To do a release ---------
+# tag a commit and push:
+#   git tag v0.4.5
+#   git push origin v0.4.5
+
+# cargo publish to put it in crates.io
+
+# To install locally [Do before pushing it]
+#cargo install --path .
--- a/media/snap.png
+++ b/media/snap.png
--- a/src/display.rs
+++ b/src/display.rs
@@ -1,33 +1,38 @@
 extern crate ansi_term;

-use self::ansi_term::Colour::Fixed;
-use self::ansi_term::Style;
-use utils::Node;
+use crate::utils::Node;
+
+use self::ansi_term::Colour::Red;
+use lscolors::{LsColors, Style};
+
+use terminal_size::{terminal_size, Height, Width};
+
+use unicode_width::UnicodeWidthStr;
+
+use std::cmp::max;
+use std::cmp::min;
+use std::fs;
+use std::iter::repeat;
+use std::path::Path;

 static UNITS: [char; 4] = ['T', 'G', 'M', 'K'];
+static BLOCKS: [char; 5] = ['█', '▓', '▒', '░', ' '];
+static DEFAULT_TERMINAL_WIDTH: u16 = 80;

 pub struct DisplayData {
    pub short_paths: bool,
    pub is_reversed: bool,
+    pub colors_on: bool,
+    pub base_size: u64,
+    pub longest_string_length: usize,
+    pub ls_colors: LsColors,
 }

 impl DisplayData {
-    fn get_first_chars(&self) -> &str {
+    #[allow(clippy::collapsible_if)]
+    fn get_tree_chars(&self, was_i_last: bool, has_children: bool) -> &'static str {
        if self.is_reversed {
-            "─┴"
-        } else {
-            "─┬"
-        }
-    }
-
-    fn get_tree_chars(
-        &self,
-        num_siblings: u64,
-        max_siblings: u64,
-        has_children: bool,
-    ) -> &'static str {
-        if self.is_reversed {
-            if num_siblings == max_siblings - 1 {
+            if was_i_last {
                if has_children {
                    "┌─┴"
                } else {
@@ -39,7 +44,7 @@ impl DisplayData {
                "├──"
            }
        } else {
-            if num_siblings == 0 {
+            if was_i_last {
                if has_children {
                    "└─┬"
                } else {
@@ -53,62 +58,176 @@ impl DisplayData {
        }
    }

-    fn is_biggest(&self, num_siblings: u64, max_siblings: u64) -> bool {
+    fn is_biggest(&self, num_siblings: usize, max_siblings: u64) -> bool {
+        if self.is_reversed {
+            num_siblings == (max_siblings - 1) as usize
+        } else {
+            num_siblings == 0
+        }
+    }
+
+    fn is_last(&self, num_siblings: usize, max_siblings: u64) -> bool {
        if self.is_reversed {
            num_siblings == 0
        } else {
-            num_siblings == max_siblings - 1
+            num_siblings == (max_siblings - 1) as usize
        }
    }

-    fn get_children_from_node(&self, node: Node) -> impl Iterator<Item = Box<Node>> {
-        if self.is_reversed {
-            let n: Vec<Box<Node>> = node.children.into_iter().rev().map(|a| a).collect();
-            return n.into_iter();
+    fn percent_size(&self, node: &Node) -> f32 {
+        let result = node.size as f32 / self.base_size as f32;
+        if result.is_normal() {
+            result
        } else {
-            return node.children.into_iter();
+            0.0
        }
    }
 }

-pub fn draw_it(permissions: bool, use_full_path: bool, is_reversed: bool, root_node: Node) {
+fn get_children_from_node(node: Node, is_reversed: bool) -> impl Iterator<Item = Node> {
+    if is_reversed {
+        let n: Vec<Node> = node.children.into_iter().rev().map(|a| a).collect();
+        n.into_iter()
+    } else {
+        node.children.into_iter()
+    }
+}
+
+struct DrawData<'a> {
+    indent: String,
+    percent_bar: String,
+    display_data: &'a DisplayData,
+}
+
+impl DrawData<'_> {
+    fn get_new_indent(&self, has_children: bool, was_i_last: bool) -> String {
+        let chars = self.display_data.get_tree_chars(was_i_last, has_children);
+        self.indent.to_string() + chars
+    }
+
+    fn generate_bar(&self, node: &Node, level: usize) -> String {
+        let chars_in_bar = self.percent_bar.chars().count();
+        let num_bars = chars_in_bar as f32 * self.display_data.percent_size(node);
+        let mut num_not_my_bar = (chars_in_bar as i32) - num_bars as i32;
+
+        let mut new_bar = "".to_string();
+        let idx = 5 - min(5, max(1, level));
+
+        for c in self.percent_bar.chars() {
+            num_not_my_bar -= 1;
+            if num_not_my_bar <= 0 {
+                new_bar.push(BLOCKS[0]);
+            } else if c == BLOCKS[0] {
+                new_bar.push(BLOCKS[idx]);
+            } else {
+                new_bar.push(c);
+            }
+        }
+        new_bar
+    }
+}
+
+fn get_width_of_terminal() -> u16 {
+    // Windows CI runners detect a very low terminal width
+    if let Some((Width(w), Height(_h))) = terminal_size() {
+        max(w, DEFAULT_TERMINAL_WIDTH)
+    } else {
+        DEFAULT_TERMINAL_WIDTH
+    }
+}
+
+pub fn draw_it(
+    permissions: bool,
+    use_full_path: bool,
+    is_reversed: bool,
+    no_colors: bool,
+    no_percents: 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,
+    let longest_string_length = root_node
+        .children
+        .iter()
+        .map(|c| find_longest_dir_name(&c, "   ", !use_full_path))
+        .fold(0, max);
+    let terminal_width = get_width_of_terminal() - 16;
+
+    let max_bar_length = if no_percents || longest_string_length >= terminal_width as usize {
+        0
+    } else {
+        terminal_width as usize - longest_string_length
    };

-    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)
+    // handle usize error also add do not show fancy output option
+    let bar_text = repeat(BLOCKS[0]).take(max_bar_length).collect::<String>();
+
+    for c in get_children_from_node(root_node, is_reversed) {
+        let display_data = DisplayData {
+            short_paths: !use_full_path,
+            is_reversed,
+            colors_on: !no_colors,
+            base_size: c.size,
+            longest_string_length,
+            ls_colors: LsColors::from_env().unwrap_or_default(),
+        };
+        let draw_data = DrawData {
+            indent: "".to_string(),
+            percent_bar: bar_text.clone(),
+            display_data: &display_data,
+        };
+        display_node(c, &draw_data, true, true);
    }
 }

-fn display_node(node: Node, is_biggest: bool, indent: &str, display_data: &DisplayData) {
-    let short = display_data.short_paths;
+// We can probably pass depth instead of indent here.
+// It is ugly to feed in '  ' instead of the actual tree characters but we don't need them yet.
+fn find_longest_dir_name(node: &Node, indent: &str, long_paths: bool) -> usize {
+    let printable_name = get_printable_name(&node.name, long_paths);
+    let longest = get_unicode_width_of_indent_and_name(indent, &printable_name);

-    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;
+    // each none root tree drawing is 2 chars
+    let full_indent: String = indent.to_string() + "  ";
+    node.children
+        .iter()
+        .map(|c| find_longest_dir_name(c, &*full_indent, long_paths))
+        .fold(longest, max)
+}

-    if !display_data.is_reversed {
-        print_this_node(&*name, size, is_biggest, short, indent);
+fn display_node(node: Node, draw_data: &DrawData, is_biggest: bool, is_last: bool) {
+    let indent2 = draw_data.get_new_indent(!node.children.is_empty(), is_last);
+    // hacky way of working out how deep we are in the tree
+    let level = ((indent2.chars().count() - 1) / 2) - 1;
+    let bar_text = draw_data.generate_bar(&node, level);
+
+    let to_print = format_string(
+        &node,
+        &*indent2,
+        &*bar_text,
+        is_biggest,
+        draw_data.display_data,
+    );
+
+    if !draw_data.display_data.is_reversed {
+        println!("{}", to_print)
    }

-    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.len() > 0);
-        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)
+    let dd = DrawData {
+        indent: clean_indentation_string(&*indent2),
+        percent_bar: bar_text,
+        display_data: draw_data.display_data,
+    };
+    let num_siblings = node.children.len() as u64;
+
+    for (count, c) in get_children_from_node(node, draw_data.display_data.is_reversed).enumerate() {
+        let is_biggest = dd.display_data.is_biggest(count, num_siblings);
+        let was_i_last = dd.display_data.is_last(count, num_siblings);
+        display_node(c, &dd, is_biggest, was_i_last);
    }

-    if display_data.is_reversed {
-        print_this_node(&*name, size, is_biggest, short, indent);
+    if draw_data.display_data.is_reversed {
+        println!("{}", to_print)
    }
 }

@@ -129,38 +248,75 @@ fn clean_indentation_string(s: &str) -> String {
    is
 }

-fn print_this_node(name: &str, size: u64, is_biggest: bool, short_paths: bool, indentation: &str) {
-    let pretty_size = format!("{:>5}", human_readable_number(size),);
-    println!(
-        "{}",
-        format_string(name, is_biggest, short_paths, &*pretty_size, indentation)
-    )
-}
-
-pub fn format_string(
-    dir_name: &str,
-    is_biggest: bool,
-    short_paths: bool,
-    size: &str,
-    indentation: &str,
-) -> String {
+fn get_printable_name<P: AsRef<Path>>(dir_name: &P, long_paths: bool) -> String {
+    let dir_name = dir_name.as_ref();
    let printable_name = {
-        if short_paths {
-            dir_name.split('/').last().unwrap_or(dir_name)
+        if long_paths {
+            match dir_name.parent() {
+                Some(prefix) => match dir_name.strip_prefix(prefix) {
+                    Ok(base) => base,
+                    Err(_) => dir_name,
+                },
+                None => dir_name,
+            }
        } else {
            dir_name
        }
    };
-    format!(
-        "{} {} {}",
-        if is_biggest {
-            Fixed(196).paint(size)
-        } else {
-            Style::new().paint(size)
-        },
-        indentation,
-        printable_name,
-    )
+    printable_name.display().to_string()
+}
+
+fn get_unicode_width_of_indent_and_name(indent: &str, name: &str) -> usize {
+    let indent_and_name = format!("{} {}", indent, name);
+    UnicodeWidthStr::width(&*indent_and_name)
+}
+
+pub fn format_string(
+    node: &Node,
+    indent: &str,
+    percent_bar: &str,
+    is_biggest: bool,
+    display_data: &DisplayData,
+) -> String {
+    let pretty_size = format!("{:>5}", human_readable_number(node.size));
+
+    let percent_size_str = format!("{:.0}%", display_data.percent_size(node) * 100.0);
+
+    let name = get_printable_name(&node.name, display_data.short_paths);
+    let width = get_unicode_width_of_indent_and_name(indent, &name);
+
+    let (percents, name_and_padding) = if percent_bar != "" {
+        let percents = format!("│{} │ {:>4}", percent_bar, percent_size_str);
+
+        let name_and_padding = name
+            + &(repeat(" ")
+                .take(display_data.longest_string_length - width)
+                .collect::<String>());
+        (percents, name_and_padding)
+    } else {
+        ("".into(), name)
+    };
+
+    let pretty_size = if is_biggest && display_data.colors_on {
+        format!("{}", Red.paint(pretty_size))
+    } else {
+        pretty_size
+    };
+
+    let pretty_name = if display_data.colors_on {
+        let meta_result = fs::metadata(node.name.clone());
+        let directory_color = display_data
+            .ls_colors
+            .style_for_path_with_metadata(node.name.clone(), meta_result.as_ref().ok());
+        let ansi_style = directory_color
+            .map(Style::to_ansi_term_style)
+            .unwrap_or_default();
+        format!("{}", ansi_style.paint(name_and_padding))
+    } else {
+        name_and_padding
+    };
+
+    format!("{} {} {}{}", pretty_size, indent, pretty_name, percents)
 }

 fn human_readable_number(size: u64) -> String {
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,20 +1,64 @@
 #[macro_use]
 extern crate clap;
-extern crate assert_cli;
+extern crate crossbeam_channel as channel;
+extern crate ignore;
+extern crate unicode_width;
 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::cmp::max;
+use std::path::PathBuf;
+use terminal_size::{terminal_size, Height, Width};
+use utils::{find_big_ones, get_dir_tree, simplify_dir_names, sort, Node};

 mod display;
 mod utils;

-static DEFAULT_NUMBER_OF_LINES: usize = 20;
+static DEFAULT_NUMBER_OF_LINES: usize = 30;
+
+#[cfg(windows)]
+fn init_color(no_color: bool) -> bool {
+    // If no color is already set do not print a warning message
+    if no_color {
+        true
+    } else {
+        // Required for windows 10
+        // Fails to resolve for windows 8 so disable color
+        match ansi_term::enable_ansi_support() {
+            Ok(_) => no_color,
+            Err(_) => {
+                eprintln!(
+                    "This version of Windows does not support ANSI colors, setting no_color flag"
+                );
+                true
+            }
+        }
+    }
+}
+
+#[cfg(not(windows))]
+fn init_color(no_color: bool) -> bool {
+    no_color
+}
+
+fn get_height_of_terminal() -> usize {
+    // Windows CI runners detect a terminal height of 0
+    if let Some((Width(_w), Height(h))) = terminal_size() {
+        max(h as usize, DEFAULT_NUMBER_OF_LINES) - 10
+    } else {
+        DEFAULT_NUMBER_OF_LINES - 10
+    }
+}

 fn main() {
-    let def_num_str = DEFAULT_NUMBER_OF_LINES.to_string();
+    let default_height = get_height_of_terminal();
+    let def_num_str = default_height.to_string();
+
    let options = App::new("Dust")
+        .about("Like du but more intuitive")
+        .version(crate_version!())
        .setting(AppSettings::TrailingVarArg)
        .arg(
            Arg::with_name("depth")
@@ -35,19 +79,46 @@ fn main() {
            Arg::with_name("display_full_paths")
                .short("p")
                .long("full-paths")
-                .help("If set sub directories will not have their path shortened"),
+                .help("Subdirectories will not have their path shortened"),
+        )
+        .arg(
+            Arg::with_name("ignore_directory")
+                .short("X")
+                .long("ignore-directory")
+                .takes_value(true)
+                .number_of_values(1)
+                .multiple(true)
+                .help("Exclude any file or directory with this name"),
+        )
+        .arg(
+            Arg::with_name("limit_filesystem")
+                .short("x")
+                .long("limit-filesystem")
+                .help("Only count the files and directories on the same filesystem as the supplied directory"),
        )
        .arg(
            Arg::with_name("display_apparent_size")
                .short("s")
                .long("apparent-size")
-                .help("If set will use file length. Otherwise we use blocks"),
+                .help("Use file length instead of blocks"),
        )
        .arg(
            Arg::with_name("reverse")
                .short("r")
                .long("reverse")
-                .help("If applied tree will be printed upside down (biggest lowest)"),
+                .help("Print tree upside down (biggest highest)"),
+        )
+        .arg(
+            Arg::with_name("no_colors")
+                .short("c")
+                .long("no-colors")
+                .help("No colors will be printed (normally largest directories are colored)"),
+        )
+        .arg(
+            Arg::with_name("no_bars")
+                .short("b")
+                .long("no-percent-bars")
+                .help("No percent bars or percentages will be displayed"),
        )
        .arg(Arg::with_name("inputs").multiple(true))
        .get_matches();
@@ -63,84 +134,85 @@ fn main() {
        Ok(v) => v,
        Err(_) => {
            eprintln!("Ignoring bad value for number_of_lines");
-            DEFAULT_NUMBER_OF_LINES
+            default_height
        }
    };

-    let depth = {
-        if options.is_present("depth") {
-            match value_t!(options.value_of("depth"), u64) {
-                Ok(v) => Some(v + 1),
-                Err(_) => {
-                    eprintln!("Ignoring bad value for depth");
-                    None
-                }
-            }
-        } else {
-            None
-        }
-    };
-    if options.is_present("depth") && number_of_lines != DEFAULT_NUMBER_OF_LINES {
+    let depth = options.value_of("depth").and_then(|depth| {
+        depth
+            .parse::<usize>()
+            .map(|v| v + 1)
+            .map_err(|_| eprintln!("Ignoring bad value for depth"))
+            .ok()
+    });
+    if options.is_present("depth") && number_of_lines != default_height {
        eprintln!("Use either -n or -d. Not both");
        return;
    }

+    let no_colors = init_color(options.is_present("no_colors"));
    let use_apparent_size = options.is_present("display_apparent_size");
-    let use_full_path = options.is_present("display_full_paths");
+    let limit_filesystem = options.is_present("limit_filesystem");
+    let ignore_directories = match options.values_of("ignore_directory") {
+        Some(i) => Some(i.map(PathBuf::from).collect()),
+        None => None,
+    };

    let simplified_dirs = simplify_dir_names(target_dirs);
-    let (permissions, nodes) = get_dir_tree(&simplified_dirs, use_apparent_size);
+    let (permissions, nodes) = get_dir_tree(
+        &simplified_dirs,
+        &ignore_directories,
+        use_apparent_size,
+        limit_filesystem,
+        depth,
+    );
    let sorted_data = sort(nodes);
    let biggest_ones = {
        match depth {
            None => find_big_ones(sorted_data, number_of_lines + simplified_dirs.len()),
-            Some(d) => trim_deep_ones(sorted_data, d, &simplified_dirs),
+            Some(_) => sorted_data,
        }
    };
    let tree = build_tree(biggest_ones, depth);
-    //println!("{:?}", tree);

    draw_it(
        permissions,
-        use_full_path,
-        options.is_present("reverse"),
+        options.is_present("display_full_paths"),
+        !options.is_present("reverse"),
+        no_colors,
+        options.is_present("no_bars"),
        tree,
    );
 }

-fn build_tree(biggest_ones: Vec<(String, u64)>, depth: Option<u64>) -> Node {
-    let mut top_parent = Node {
-        name: "".to_string(),
-        size: 0,
-        children: vec![],
-    };
+fn build_tree(biggest_ones: Vec<(PathBuf, u64)>, depth: Option<usize>) -> 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![],
+            children: Vec::default(),
        };
-        recursively_build_tree(&mut top_parent, n, depth)
+        recursively_build_tree(&mut top_parent, n, depth);
    }
    top_parent
 }

-fn recursively_build_tree(parent_node: &mut Node, new_node: Node, depth: Option<u64>) {
+fn recursively_build_tree(parent_node: &mut Node, new_node: Node, depth: Option<usize>) {
    let new_depth = match depth {
        None => None,
        Some(0) => return,
        Some(d) => Some(d - 1),
    };
-    for c in parent_node.children.iter_mut() {
-        if new_node.name.starts_with(&c.name) {
-            return recursively_build_tree(&mut *c, new_node, new_depth);
-        }
+    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);
    }
-    let temp = Box::<Node>::new(new_node);
-    parent_node.children.push(temp);
 }
-
-#[cfg(test)]
-mod tests;
--- a/src/test_dir2/dir/hello
+++ b/src/test_dir2/dir/hello
@@ -0,0 +1 @@
+hello
--- a/src/test_dir2/dir_name_clash
+++ b/src/test_dir2/dir_name_clash
@@ -0,0 +1 @@
+hello
--- a/src/test_dir2/dir_substring/hello
+++ b/src/test_dir2/dir_substring/hello
@@ -0,0 +1 @@
+hello
--- a/src/test_dir3/ラウトは難しいです！.japan
+++ b/src/test_dir3/ラウトは難しいです！.japan
--- a/src/test_dir3/👩.unicode
+++ b/src/test_dir3/👩.unicode
--- a/src/tests.rs
+++ b/src/tests.rs
@@ -1,312 +0,0 @@
-extern crate ansi_term;
-extern crate tempfile;
-use self::tempfile::Builder;
-use self::tempfile::TempDir;
-use super::*;
-use display::format_string;
-use std::fs::File;
-use std::io::Write;
-use std::panic;
-use std::path::PathBuf;
-use std::process::Command;
-
-#[test]
-pub fn test_main() {
-    assert_cli::Assert::main_binary()
-        .with_args(&["src/test_dir"])
-        .stdout()
-        .is(main_output(true))
-        .unwrap();
-}
-
-#[test]
-pub fn test_main_long_paths() {
-    assert_cli::Assert::main_binary()
-        .with_args(&["-p", "src/test_dir"])
-        .stdout()
-        .is(main_output(false))
-        .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 {
-    format!(
-        "{}
-{}
-{}
-{}",
-        format_string("src/test_dir", true, short_paths, " 4.0K", "─┬"),
-        format_string("src/test_dir/many", true, short_paths, " 4.0K", " └─┬",),
-        format_string(
-            "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 {
-    format!(
-        "{}
-{}
-{}
-{}",
-        format_string("src/test_dir", true, short_paths, "  12K", "─┬"),
-        format_string("src/test_dir/many", true, short_paths, " 8.0K", " └─┬",),
-        format_string(
-            "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_apparent_size() {
-    let r = format!(
-        "{}",
-        format_string(
-            "src/test_dir/many/hello_file",
-            true,
-            true,
-            "   6B",
-            "   ├──",
-        ),
-    );
-
-    assert_cli::Assert::main_binary()
-        .with_args(&["-s", "src/test_dir"])
-        .stdout()
-        .contains(r)
-        .unwrap();
-}
-
-#[test]
-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();
-    file_path
-}
-
-#[test]
-pub fn test_soft_sym_link() {
-    let dir = Builder::new().tempdir().unwrap();
-    let file = build_temp_file(&dir);
-    let dir_s = dir.path().to_str().unwrap();
-    let file_path_s = file.to_str().unwrap();
-
-    let link_name = dir.path().join("the_link");
-    let link_name_s = link_name.to_str().unwrap();
-    let c = Command::new("ln")
-        .arg("-s")
-        .arg(file_path_s)
-        .arg(link_name_s)
-        .output();
-    assert!(c.is_ok());
-
-    let r = soft_sym_link_output(dir_s, file_path_s, 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(&[dir_s])
-        .stdout()
-        .contains(r)
-        .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() {
-    let dir = Builder::new().tempdir().unwrap();
-    let file = build_temp_file(&dir);
-    let dir_s = dir.path().to_str().unwrap();
-    let file_path_s = file.to_str().unwrap();
-
-    let link_name = dir.path().join("the_link");
-    let link_name_s = link_name.to_str().unwrap();
-    let c = Command::new("ln")
-        .arg(file_path_s)
-        .arg(link_name_s)
-        .output();
-    assert!(c.is_ok());
-
-    let (r, r2) = hard_link_output(dir_s, file_path_s, link_name_s);
-
-    // Because this is a hard link the file and hard link look identical. Therefore
-    // we cannot guarantee which version will appear first.
-    // TODO: Consider adding predictable iteration order (sort file entries by name?)
-    let result = panic::catch_unwind(|| {
-        assert_cli::Assert::main_binary()
-            .with_args(&[dir_s])
-            .stdout()
-            .contains(r)
-            .unwrap();
-    });
-    if result.is_err() {
-        assert_cli::Assert::main_binary()
-            .with_args(&[dir_s])
-            .stdout()
-            .contains(r2)
-            .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() {
-    let dir = Builder::new().tempdir().unwrap();
-    let dir_s = dir.path().to_str().unwrap();
-
-    let link_name = dir.path().join("the_link");
-    let link_name_s = link_name.to_str().unwrap();
-
-    let c = Command::new("ln")
-        .arg("-s")
-        .arg(dir_s)
-        .arg(link_name_s)
-        .output();
-    assert!(c.is_ok());
-
-    assert_cli::Assert::main_binary()
-        .with_args(&[dir_s])
-        .stdout()
-        .contains(recursive_sym_link_output(dir_s, link_name_s))
-        .unwrap();
-}
-
-#[cfg(target_os = "macos")]
-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, " 4.0K", " └──",),
-    )
-}
-#[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", " └──",),
-    )
-}
--- a/src/utils/mod.rs
+++ b/src/utils/mod.rs
@@ -1,119 +1,232 @@
 use std::cmp::Ordering;
 use std::collections::HashMap;
 use std::collections::HashSet;
+use std::iter::FromIterator;
+use std::path::{Path, PathBuf};
+use std::sync::atomic::AtomicBool;

-use walkdir::WalkDir;
+use channel::Receiver;
+use std::thread::JoinHandle;
+
+use ignore::{WalkBuilder, WalkState};
+use std::sync::atomic;
+use std::thread;

 mod platform;
 use self::platform::*;

-#[derive(Debug)]
+type PathData = (PathBuf, u64, Option<(u64, u64)>);
+
+#[derive(Debug, Default, Eq)]
 pub struct Node {
-    pub name: String,
+    pub name: PathBuf,
    pub size: u64,
-    pub children: Vec<Box<Node>>,
+    pub children: Vec<Node>,
 }

-pub fn simplify_dir_names(filenames: Vec<&str>) -> HashSet<String> {
-    let mut top_level_names: HashSet<String> = HashSet::new();
+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<P: AsRef<Path>>(parent: P, child: P) -> bool {
+    let parent = parent.as_ref();
+    let child = child.as_ref();
+    child.starts_with(parent) && !parent.starts_with(child)
+}
+
+pub fn simplify_dir_names<P: AsRef<Path>>(filenames: Vec<P>) -> HashSet<PathBuf> {
+    let mut top_level_names: HashSet<PathBuf> = HashSet::with_capacity(filenames.len());
+    let mut to_remove: Vec<PathBuf> = Vec::with_capacity(filenames.len());

    for t in filenames {
-        let top_level_name = ensure_end_slash(t);
+        let top_level_name = normalize_path(t);
        let mut can_add = true;
-        let mut to_remove: Vec<String> = Vec::new();

        for tt in top_level_names.iter() {
-            let temp = tt.to_string();
-            if top_level_name.starts_with(&temp) {
+            if is_a_parent_of(&top_level_name, tt) {
+                to_remove.push(tt.to_path_buf());
+            } else if is_a_parent_of(tt, &top_level_name) {
                can_add = false;
-            } else if tt.starts_with(&top_level_name) {
-                to_remove.push(temp);
            }
        }
-        for tr in to_remove {
-            top_level_names.remove(&tr);
-        }
+        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));
+            top_level_names.insert(top_level_name);
        }
    }

    top_level_names
 }

-pub fn get_dir_tree(
-    top_level_names: &HashSet<String>,
+fn prepare_walk_dir_builder<P: AsRef<Path>>(
+    top_level_names: &HashSet<P>,
+    limit_filesystem: bool,
+    max_depth: Option<usize>,
+) -> WalkBuilder {
+    let mut it = top_level_names.iter();
+    let mut builder = WalkBuilder::new(it.next().unwrap());
+    builder.follow_links(false);
+    builder.ignore(false);
+    builder.git_global(false);
+    builder.git_ignore(false);
+    builder.git_exclude(false);
+    builder.hidden(false);
+
+    if limit_filesystem {
+        builder.same_file_system(true);
+    }
+
+    builder.max_depth(max_depth);
+
+    for b in it {
+        builder.add(b);
+    }
+    builder
+}
+
+pub fn get_dir_tree<P: AsRef<Path>>(
+    top_level_names: &HashSet<P>,
+    ignore_directories: &Option<Vec<PathBuf>>,
    apparent_size: bool,
-) -> (bool, HashMap<String, u64>) {
-    let mut permissions = 0;
-    let mut inodes: HashSet<(u64, u64)> = HashSet::new();
-    let mut data: HashMap<String, u64> = HashMap::new();
+    limit_filesystem: bool,
+    max_depth: Option<usize>,
+) -> (bool, HashMap<PathBuf, u64>) {
+    let (tx, rx) = channel::bounded::<PathData>(1000);

-    for b in top_level_names.iter() {
-        examine_dir(&b, apparent_size, &mut inodes, &mut data, &mut permissions);
-    }
-    (permissions == 0, data)
-}
+    let permissions_flag = AtomicBool::new(true);

-pub fn ensure_end_slash(s: &str) -> String {
-    let mut new_name = String::from(s);
-    while new_name.ends_with('/') || new_name.ends_with("/.") {
-        new_name.pop();
-    }
-    new_name + "/"
-}
+    let t2 = HashSet::from_iter(top_level_names.iter().map(|p| p.as_ref().to_path_buf()));

-pub fn strip_end_slash(s: &str) -> String {
-    let mut new_name = String::from(s);
-    while (new_name.ends_with('/') || new_name.ends_with("/.")) && new_name.len() > 1 {
-        new_name.pop();
-    }
-    new_name
-}
+    let t = create_reader_thread(rx, t2, apparent_size);
+    let walk_dir_builder = prepare_walk_dir_builder(top_level_names, limit_filesystem, max_depth);

-fn examine_dir(
-    top_dir: &str,
-    apparent_size: bool,
-    inodes: &mut HashSet<(u64, u64)>,
-    data: &mut HashMap<String, u64>,
-    file_count_no_permission: &mut u64,
-) {
-    for entry in WalkDir::new(top_dir) {
-        if let Ok(e) = entry {
-            let maybe_size_and_inode = get_metadata(&e, apparent_size);
-
-            match maybe_size_and_inode {
-                Some((size, maybe_inode)) => {
-                    if !apparent_size {
-                        if let Some(inode_dev_pair) = maybe_inode {
-                            if inodes.contains(&inode_dev_pair) {
-                                continue;
+    walk_dir_builder.build_parallel().run(|| {
+        let txc = tx.clone();
+        let pf = &permissions_flag;
+        Box::new(move |path| {
+            match path {
+                Ok(p) => {
+                    if let Some(dirs) = ignore_directories {
+                        let path = p.path();
+                        let parts = path.components().collect::<Vec<std::path::Component>>();
+                        for d in dirs {
+                            let seq = d.components().collect::<Vec<std::path::Component>>();
+                            if parts
+                                .windows(seq.len())
+                                .any(|window| window.iter().collect::<PathBuf>() == *d)
+                            {
+                                return WalkState::Continue;
                            }
-                            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();
-                    loop {
-                        let path_name = e_path.to_string_lossy().to_string();
-                        let s = data.entry(path_name.clone()).or_insert(0);
-                        *s += size;
-                        if path_name == *top_dir {
-                            break;
+
+                    let maybe_size_and_inode = get_metadata(&p, apparent_size);
+
+                    match maybe_size_and_inode {
+                        Some(data) => {
+                            let (size, inode_device) = data;
+                            txc.send((p.into_path(), size, inode_device)).unwrap();
+                        }
+                        None => {
+                            pf.store(false, atomic::Ordering::Relaxed);
                        }
-                        assert!(path_name != "");
-                        e_path.pop();
                    }
                }
-                None => *file_count_no_permission += 1,
+                Err(_) => {
+                    pf.store(false, atomic::Ordering::Relaxed);
+                }
+            };
+            WalkState::Continue
+        })
+    });
+
+    drop(tx);
+    let data = t.join().unwrap();
+    (permissions_flag.load(atomic::Ordering::SeqCst), data)
+}
+
+fn create_reader_thread(
+    rx: Receiver<PathData>,
+    top_level_names: HashSet<PathBuf>,
+    apparent_size: bool,
+) -> JoinHandle<HashMap<PathBuf, u64>> {
+    // Receiver thread
+    thread::spawn(move || {
+        let mut hash: HashMap<PathBuf, u64> = HashMap::new();
+        let mut inodes: HashSet<(u64, u64)> = HashSet::new();
+
+        for dent in rx {
+            let (path, size, maybe_inode_device) = dent;
+
+            if should_ignore_file(apparent_size, &mut inodes, maybe_inode_device) {
+                continue;
+            } else {
+                for p in path.ancestors() {
+                    let s = hash.entry(p.to_path_buf()).or_insert(0);
+                    *s += size;
+
+                    if top_level_names.contains(p) {
+                        break;
+                    }
+                }
            }
-        } else {
-            *file_count_no_permission += 1
+        }
+        hash
+    })
+}
+
+pub fn normalize_path<P: AsRef<Path>>(path: P) -> PathBuf {
+    // normalize path ...
+    // 1. removing repeated separators
+    // 2. removing interior '.' ("current directory") path segments
+    // 3. removing trailing extra separators and '.' ("current directory") path segments
+    // * `Path.components()` does all the above work; ref: <https://doc.rust-lang.org/std/path/struct.Path.html#method.components>
+    // 4. changing to os preferred separator (automatically done by recollecting components back into a PathBuf)
+    path.as_ref().components().collect::<PathBuf>()
+}
+
+fn should_ignore_file(
+    apparent_size: bool,
+    inodes: &mut HashSet<(u64, u64)>,
+    maybe_inode_device: Option<(u64, u64)>,
+) -> bool {
+    match maybe_inode_device {
+        None => false,
+        Some(data) => {
+            let (inode, device) = data;
+            if !apparent_size {
+                // Ignore files already visited or symlinked
+                if inodes.contains(&(inode, device)) {
+                    return true;
+                }
+                inodes.insert((inode, device));
+            }
+            false
        }
    }
 }

-pub fn sort_by_size_first_name_second(a: &(String, u64), b: &(String, u64)) -> Ordering {
+pub fn sort_by_size_first_name_second(a: &(PathBuf, u64), b: &(PathBuf, u64)) -> Ordering {
    let result = b.1.cmp(&a.1);
    if result == Ordering::Equal {
        a.0.cmp(&b.0)
@@ -122,13 +235,13 @@ 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)> {
-    let mut new_l: Vec<(String, u64)> = data.iter().map(|(a, b)| (a.clone(), *b)).collect();
-    new_l.sort_by(|a, b| sort_by_size_first_name_second(&a, &b));
+pub fn sort(data: HashMap<PathBuf, u64>) -> Vec<(PathBuf, u64)> {
+    let mut new_l: Vec<(PathBuf, u64)> = data.iter().map(|(a, b)| (a.clone(), *b)).collect();
+    new_l.sort_unstable_by(sort_by_size_first_name_second);
    new_l
 }

-pub fn find_big_ones(new_l: Vec<(String, u64)>, max_to_show: usize) -> Vec<(String, u64)> {
+pub fn find_big_ones(new_l: Vec<(PathBuf, u64)>, max_to_show: usize) -> Vec<(PathBuf, u64)> {
    if max_to_show > 0 && new_l.len() > max_to_show {
        new_l[0..max_to_show].to_vec()
    } else {
@@ -136,26 +249,6 @@ pub fn find_big_ones(new_l: Vec<(String, u64)>, max_to_show: usize) -> Vec<(Stri
    }
 }

-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![];
-
-    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::*;
@@ -163,37 +256,102 @@ mod tests {
    #[test]
    fn test_simplify_dir() {
        let mut correct = HashSet::new();
-        correct.insert("a".to_string());
+        correct.insert(PathBuf::from("a"));
        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());
+        correct.insert(["a", "b"].iter().collect::<PathBuf>());
        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);
+        correct.insert(["a", "b"].iter().collect::<PathBuf>());
+        correct.insert(PathBuf::from("c"));
+        assert_eq!(
+            simplify_dir_names(vec![
+                "a/b",
+                "a/b//",
+                "a/././b///",
+                "c",
+                "c/",
+                "c/.",
+                "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());
+        correct.insert(PathBuf::from("b"));
+        correct.insert(["c", "a", "b"].iter().collect::<PathBuf>());
+        correct.insert(["a", "b"].iter().collect::<PathBuf>());
        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());
+        correct.insert(PathBuf::from("src"));
        assert_eq!(simplify_dir_names(vec!["src/."]), correct);
    }
+
+    #[test]
+    fn test_simplify_dir_substring_names() {
+        let mut correct = HashSet::new();
+        correct.insert(PathBuf::from("src"));
+        correct.insert(PathBuf::from("src_v2"));
+        assert_eq!(simplify_dir_names(vec!["src/", "src_v2"]), correct);
+    }
+
+    #[test]
+    fn test_is_a_parent_of() {
+        assert!(is_a_parent_of("/usr", "/usr/andy"));
+        assert!(is_a_parent_of("/usr", "/usr/andy/i/am/descendant"));
+        assert!(!is_a_parent_of("/usr", "/usr/."));
+        assert!(!is_a_parent_of("/usr", "/usr/"));
+        assert!(!is_a_parent_of("/usr", "/usr"));
+        assert!(!is_a_parent_of("/usr/", "/usr"));
+        assert!(!is_a_parent_of("/usr/andy", "/usr"));
+        assert!(!is_a_parent_of("/usr/andy", "/usr/sibling"));
+        assert!(!is_a_parent_of("/usr/folder", "/usr/folder_not_a_child"));
+    }
+
+    #[test]
+    fn test_is_a_parent_of_root() {
+        assert!(is_a_parent_of("/", "/usr/andy"));
+        assert!(is_a_parent_of("/", "/usr"));
+        assert!(!is_a_parent_of("/", "/"));
+    }
+
+    #[test]
+    fn test_should_ignore_file() {
+        let mut files = HashSet::new();
+        files.insert((10, 20));
+
+        assert!(!should_ignore_file(true, &mut files, Some((0, 0))));
+
+        // New file is not known it will be inserted to the hashmp and should not be ignored
+        assert!(!should_ignore_file(false, &mut files, Some((11, 12))));
+        assert!(files.contains(&(11, 12)));
+
+        // The same file will be ignored the second time
+        assert!(should_ignore_file(false, &mut files, Some((11, 12))));
+    }
+
+    #[test]
+    fn test_should_ignore_file_on_different_device() {
+        let mut files = HashSet::new();
+        files.insert((10, 20));
+
+        // We do not ignore files on the same device
+        assert!(!should_ignore_file(false, &mut files, Some((2, 99))));
+        assert!(!should_ignore_file(true, &mut files, Some((2, 99))));
+    }
 }
--- a/src/utils/platform.rs
+++ b/src/utils/platform.rs
@@ -1,5 +1,8 @@
-use walkdir::DirEntry;
+use ignore::DirEntry;
+#[allow(unused_imports)]
+use std::fs;

+#[cfg(target_family = "unix")]
 fn get_block_size() -> u64 {
    // All os specific implementations of MetatdataExt seem to define a block as 512 bytes
    // https://doc.rust-lang.org/std/os/linux/fs/trait.MetadataExt.html#tymethod.st_blocks
@@ -9,17 +12,117 @@ fn get_block_size() -> u64 {
 #[cfg(target_family = "unix")]
 pub fn get_metadata(d: &DirEntry, use_apparent_size: bool) -> Option<(u64, Option<(u64, u64)>)> {
    use std::os::unix::fs::MetadataExt;
-    d.metadata().ok().and_then(|md| {
-        let inode = Some((md.ino(), md.dev()));
-        if use_apparent_size {
-            Some((md.len(), inode))
-        } else {
-            Some((md.blocks() * get_block_size(), inode))
+    match d.metadata() {
+        Ok(md) => {
+            if use_apparent_size {
+                Some((md.len(), Some((md.ino(), md.dev()))))
+            } else {
+                Some((md.blocks() * get_block_size(), Some((md.ino(), md.dev()))))
+            }
        }
-    })
+        Err(_e) => None,
+    }
 }

-#[cfg(not(target_family = "unix"))]
-pub fn get_metadata(d: &DirEntry, _apparent: bool) -> Option<(u64, Option<(u64, u64)>)> {
-    d.metadata().ok().map_or(None, |md| Some((md.len(), None)))
+#[cfg(target_family = "windows")]
+pub fn get_metadata(d: &DirEntry, _use_apparent_size: bool) -> Option<(u64, Option<(u64, u64)>)> {
+    // On windows opening the file to get size, file ID and volume can be very
+    // expensive because 1) it causes a few system calls, and more importantly 2) it can cause
+    // windows defender to scan the file.
+    // Therefore we try to avoid doing that for common cases, mainly those of
+    // plain files:
+
+    // The idea is to make do with the file size that we get from the OS for
+    // free as part of iterating a folder. Therefore we want to make sure that
+    // it makes sense to use that free size information:
+
+    // Volume boundaries:
+    // The user can ask us not to cross volume boundaries. If the DirEntry is a
+    // plain file and not a reparse point or other non-trivial stuff, we assume
+    // that the file is located on the same volume as the directory that
+    // contains it.
+
+    // File ID:
+    // This optimization does deprive us of access to a file ID. As a
+    // workaround, we just make one up that hopefully does not collide with real
+    // file IDs.
+    // Hard links: Unresolved. We don't get inode/file index, so hard links
+    // count once for each link. Hopefully they are not too commonly in use on
+    // windows.
+
+    // Size:
+    // We assume (naively?) that for the common cases the free size info is the
+    // same as one would get by doing the expensive thing. Sparse, encrypted and
+    // compressed files are not included in the common cases, as one can image
+    // there being more than view on their size.
+
+    // Savings in orders of magnitude in terms of time, io and cpu have been
+    // observed on hdd, windows 10, some 100Ks files taking up some hundreds of
+    // GBs:
+    // Consistently opening the file: 30 minutes.
+    // With this optimization:         8 sec.
+
+    use std::io;
+    use std::path::Path;
+    use winapi_util::Handle;
+    fn handle_from_path_limited<P: AsRef<Path>>(path: P) -> io::Result<Handle> {
+        use std::fs::OpenOptions;
+        use std::os::windows::fs::OpenOptionsExt;
+        const FILE_READ_ATTRIBUTES: u32 = 0x0080;
+
+        // So, it seems that it does does have to be that expensive to open
+        // files to get their info: Avoiding opening the file with the full
+        // GENERIC_READ is key:
+
+        // https://docs.microsoft.com/en-us/windows/win32/secauthz/generic-access-rights:
+        // "For example, a Windows file object maps the GENERIC_READ bit to the
+        // READ_CONTROL and SYNCHRONIZE standard access rights and to the
+        // FILE_READ_DATA, FILE_READ_EA, and FILE_READ_ATTRIBUTES
+        // object-specific access rights"
+
+        // The flag FILE_READ_DATA seems to be the expensive one, so we'll avoid
+        // that, and a most of the other ones. Simply because it seems that we
+        // don't need them.
+
+        let file = OpenOptions::new()
+            .access_mode(FILE_READ_ATTRIBUTES)
+            .open(path)?;
+        Ok(Handle::from_file(file))
+    }
+
+    fn get_metadata_expensive(d: &DirEntry) -> Option<(u64, Option<(u64, u64)>)> {
+        use winapi_util::file::information;
+
+        let h = handle_from_path_limited(d.path()).ok()?;
+        let info = information(&h).ok()?;
+
+        Some((
+            info.file_size(),
+            Some((info.file_index(), info.volume_serial_number())),
+        ))
+    }
+
+    use std::os::windows::fs::MetadataExt;
+    match d.metadata() {
+        Ok(ref md) => {
+            const FILE_ATTRIBUTE_ARCHIVE: u32 = 0x20u32;
+            const FILE_ATTRIBUTE_READONLY: u32 = 0x1u32;
+            const FILE_ATTRIBUTE_HIDDEN: u32 = 0x2u32;
+            const FILE_ATTRIBUTE_SYSTEM: u32 = 0x4u32;
+            const FILE_ATTRIBUTE_NORMAL: u32 = 0x80u32;
+            const FILE_ATTRIBUTE_DIRECTORY: u32 = 0x10u32;
+
+            let attr_filtered = md.file_attributes()
+                & !(FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM);
+            if attr_filtered == FILE_ATTRIBUTE_ARCHIVE
+                || attr_filtered == FILE_ATTRIBUTE_DIRECTORY
+                || md.file_attributes() == FILE_ATTRIBUTE_NORMAL
+            {
+                Some((md.len(), None))
+            } else {
+                get_metadata_expensive(&d)
+            }
+        }
+        _ => get_metadata_expensive(&d),
+    }
 }
--- a/tests/tests.rs
+++ b/tests/tests.rs
@@ -0,0 +1,320 @@
+use assert_cmd::Command;
+use std::str;
+
+mod tests_symlinks;
+
+//  Warning: File sizes differ on both platform and on the format of the disk.
+/// Copy to /tmp dir - we assume that the formatting of the /tmp partition
+/// is consistent. If the tests fail your /tmp filesystem probably differs
+fn copy_test_data(dir: &str) {
+    match Command::new("cp").arg("-r").arg(dir).arg("/tmp/").ok() {
+        Ok(_) => {}
+        Err(err) => {
+            eprintln!("Error copying directory {:?}", err);
+        }
+    };
+}
+
+// We can at least test the file names are there
+#[test]
+pub fn test_basic_output() {
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let output = cmd.arg("src/test_dir/").unwrap().stdout;
+    let output = str::from_utf8(&output).unwrap();
+
+    assert!(output.contains(" ┌─┴ "));
+    assert!(output.contains("test_dir "));
+    assert!(output.contains("  ┌─┴ "));
+    assert!(output.contains("many "));
+    assert!(output.contains("    ├── "));
+    assert!(output.contains("hello_file"));
+    assert!(output.contains("     ┌── "));
+    assert!(output.contains("a_file "));
+}
+
+#[test]
+pub fn test_output_no_bars_means_no_excess_spaces() {
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let output = cmd.arg("-b").arg("src/test_dir/").unwrap().stdout;
+    let output = str::from_utf8(&output).unwrap();
+    // If bars are not being shown we don't need to pad the output with spaces
+    assert!(output.contains("many"));
+    assert!(!output.contains("many    "));
+}
+
+// "windows" result data can vary by host (size seems to be variable by one byte); fix code vs test and re-enable
+#[cfg_attr(target_os = "windows", ignore)]
+#[test]
+pub fn test_main_basic() {
+    copy_test_data("src/test_dir");
+    // -c is no color mode - This makes testing much simpler
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let assert = cmd.arg("-c").arg("/tmp/test_dir/").unwrap().stdout;
+    let output = str::from_utf8(&assert).unwrap();
+    assert!(output.contains(&main_output()));
+}
+
+#[cfg_attr(target_os = "windows", ignore)]
+#[test]
+pub fn test_main_multi_arg() {
+    copy_test_data("src/test_dir");
+
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let assert = cmd
+        .arg("-c")
+        .arg("/tmp/test_dir/many/")
+        .arg("/tmp/test_dir")
+        .arg("/tmp/test_dir")
+        .unwrap()
+        .stdout;
+    let output = str::from_utf8(&assert).unwrap();
+    assert!(output.contains(&main_output()));
+}
+
+#[cfg(target_os = "macos")]
+fn main_output() -> String {
+    r#"
+   0B     ┌── a_file    │░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░█ │   0%
+ 4.0K     ├── hello_file│██████████████████████████████████████████████ │ 100%
+ 4.0K   ┌─┴ many        │██████████████████████████████████████████████ │ 100%
+ 4.0K ┌─┴ test_dir      │██████████████████████████████████████████████ │ 100%
+ "#
+    .trim()
+    .to_string()
+}
+
+#[cfg(target_os = "linux")]
+fn main_output() -> String {
+    r#"
+   0B     ┌── a_file    │               ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░█ │   0%
+ 4.0K     ├── hello_file│               ░░░░░░░░░░░░░░░████████████████ │  33%
+ 8.0K   ┌─┴ many        │               ███████████████████████████████ │  67%
+  12K ┌─┴ test_dir      │██████████████████████████████████████████████ │ 100%
+  "#
+    .trim()
+    .to_string()
+}
+
+#[cfg(target_os = "windows")]
+fn main_output() -> String {
+    "windows results vary by host".to_string()
+}
+
+#[cfg_attr(target_os = "windows", ignore)]
+#[test]
+pub fn test_main_long_paths() {
+    copy_test_data("src/test_dir");
+
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let assert = cmd
+        .arg("-c")
+        .arg("-p")
+        .arg("/tmp/test_dir/")
+        .unwrap()
+        .stdout;
+    let output = str::from_utf8(&assert).unwrap();
+    assert!(output.contains(&main_output_long_paths()));
+}
+
+#[cfg(target_os = "macos")]
+fn main_output_long_paths() -> String {
+    r#"
+   0B     ┌── /tmp/test_dir/many/a_file    │░░░░░░░░░░░░░░░░░░░░░░░░░░█ │   0%
+ 4.0K     ├── /tmp/test_dir/many/hello_file│███████████████████████████ │ 100%
+ 4.0K   ┌─┴ /tmp/test_dir/many             │███████████████████████████ │ 100%
+ 4.0K ┌─┴ /tmp/test_dir                    │███████████████████████████ │ 100%
+"#
+    .trim()
+    .to_string()
+}
+
+#[cfg(target_os = "linux")]
+fn main_output_long_paths() -> String {
+    r#"   
+   0B     ┌── /tmp/test_dir/many/a_file    │        ░░░░░░░░░░░░░░░░░░█ │   0%
+ 4.0K     ├── /tmp/test_dir/many/hello_file│        ░░░░░░░░░██████████ │  33%
+ 8.0K   ┌─┴ /tmp/test_dir/many             │        ███████████████████ │  67%
+  12K ┌─┴ /tmp/test_dir                    │███████████████████████████ │ 100%
+"#
+    .trim()
+    .to_string()
+}
+
+#[cfg(target_os = "windows")]
+fn main_output_long_paths() -> String {
+    "windows results vary by host".to_string()
+}
+
+#[cfg_attr(target_os = "windows", ignore)]
+#[test]
+pub fn test_apparent_size() {
+    copy_test_data("src/test_dir");
+
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let assert = cmd.arg("-c").arg("-s").arg("src/test_dir").unwrap().stdout;
+    let output = str::from_utf8(&assert).unwrap();
+    assert!(output.contains(&output_apparent_size()));
+}
+
+#[cfg(target_os = "linux")]
+fn output_apparent_size() -> String {
+    r#"
+   0B     ┌── a_file    │                      ░░░░░░░░░░░░░░░░░░░░░░░█ │   0%
+   6B     ├── hello_file│                      ░░░░░░░░░░░░░░░░░░░░░░░█ │   0%
+ 4.0K   ┌─┴ many        │                      ████████████████████████ │  50%
+ 8.0K ┌─┴ test_dir      │██████████████████████████████████████████████ │ 100%     
+"#
+    .trim()
+    .to_string()
+}
+
+#[cfg(target_os = "macos")]
+fn output_apparent_size() -> String {
+    r#"
+   0B     ┌── a_file    │                   ░░░░░░░░░░░░░░░░░░░░░░░░░░█ │   0%
+   6B     ├── hello_file│                   ░░░░░░░░░░░░░░░░░░░░░░░░░██ │   3%
+ 134B   ┌─┴ many        │                   ███████████████████████████ │  58%
+ 230B ┌─┴ test_dir      │██████████████████████████████████████████████ │ 100%
+"#
+    .trim()
+    .to_string()
+}
+
+#[cfg(target_os = "windows")]
+fn output_apparent_size() -> String {
+    "windows results vary by host".to_string()
+}
+
+#[test]
+pub fn test_reverse_flag() {
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let output = cmd.arg("-c").arg("-r").arg("src/test_dir/").unwrap().stdout;
+    let output = str::from_utf8(&output).unwrap();
+
+    assert!(output.contains(" └─┬ test_dir "));
+    assert!(output.contains("  └─┬ many "));
+    assert!(output.contains("    ├── hello_file"));
+    assert!(output.contains("    └── a_file "));
+}
+
+#[test]
+pub fn test_d_flag_works() {
+    // We should see the top level directory but not the sub dirs / files:
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let output = cmd
+        .arg("-d")
+        .arg("1")
+        .arg("-s")
+        .arg("src/test_dir/")
+        .unwrap()
+        .stdout;
+    let output = str::from_utf8(&output).unwrap();
+    assert!(!output.contains("hello_file"));
+}
+
+// Check against directories and files whos names are substrings of each other
+#[cfg_attr(target_os = "windows", ignore)]
+#[test]
+pub fn test_substring_of_names() {
+    copy_test_data("src/test_dir2");
+
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let output = cmd.arg("-c").arg("/tmp/test_dir2").unwrap().stdout;
+    let output = str::from_utf8(&output).unwrap();
+    assert!(output.contains(&no_substring_of_names_output()));
+}
+
+#[cfg(target_os = "linux")]
+fn no_substring_of_names_output() -> String {
+    "
+ 4.0K   ┌── dir_name_clash│                                    ████████ │  17%
+ 4.0K   │ ┌── hello       │                             ░░░░░░░████████ │  17%
+ 8.0K   ├─┴ dir_substring │                             ███████████████ │  33%
+ 4.0K   │ ┌── hello       │                             ░░░░░░░████████ │  17%
+ 8.0K   ├─┴ dir           │                             ███████████████ │  33%
+  24K ┌─┴ test_dir2       │████████████████████████████████████████████ │ 100% 
+    "
+    .trim()
+    .into()
+}
+
+#[cfg(target_os = "macos")]
+fn no_substring_of_names_output() -> String {
+    "
+ 4.0K     ┌── hello       │                             ███████████████ │  33%
+ 4.0K   ┌─┴ dir_substring │                             ███████████████ │  33%
+ 4.0K   ├── dir_name_clash│                             ███████████████ │  33%
+ 4.0K   │ ┌── hello       │                             ███████████████ │  33%
+ 4.0K   ├─┴ dir           │                             ███████████████ │  33%
+  12K ┌─┴ test_dir2       │████████████████████████████████████████████ │ 100% 
+  "
+    .trim()
+    .into()
+}
+
+#[cfg(target_os = "windows")]
+fn no_substring_of_names_output() -> String {
+    "PRs".into()
+}
+
+#[cfg_attr(target_os = "windows", ignore)]
+#[test]
+pub fn test_unicode_directories() {
+    copy_test_data("src/test_dir3");
+
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let output = cmd.arg("-c").arg("/tmp/test_dir3").unwrap().stdout;
+    let output = str::from_utf8(&output).unwrap();
+    assert!(output.contains(&unicode_dir()));
+}
+
+#[cfg(target_os = "linux")]
+fn unicode_dir() -> String {
+    // The way unicode & asian characters are rendered on the terminal should make this line up
+    "
+   0B   ┌── 👩.unicode                │                               █ │   0%
+   0B   ├── ラウトは難しいです！.japan│                               █ │   0%
+ 4.0K ┌─┴ test_dir3                   │████████████████████████████████ │ 100%
+    "
+    .trim()
+    .into()
+}
+
+#[cfg(target_os = "macos")]
+fn unicode_dir() -> String {
+    "
+   0B   ┌── 👩.unicode                │                               █ │   0%
+   0B   ├── ラウトは難しいです！.japan│                               █ │   0%
+   0B ┌─┴ test_dir3                   │                               █ │   0%
+    "
+    .trim()
+    .into()
+}
+
+#[cfg(target_os = "windows")]
+fn unicode_dir() -> String {
+    "".into()
+}
+
+// Check against directories and files whos names are substrings of each other
+#[test]
+pub fn test_ignore_dir() {
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let output = cmd
+        .arg("-c")
+        .arg("-X")
+        .arg("dir_substring")
+        .arg("src/test_dir3")
+        .unwrap()
+        .stdout;
+    let output = str::from_utf8(&output).unwrap();
+    assert!(!output.contains("dir_substring"));
+}
+
+#[test]
+pub fn test_with_bad_param() {
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let stderr = cmd.arg("-").unwrap().stderr;
+    let stderr = str::from_utf8(&stderr).unwrap();
+    assert!(stderr.contains("Did not have permissions for all directories"));
+}
--- a/tests/tests_symlinks.rs
+++ b/tests/tests_symlinks.rs
@@ -0,0 +1,106 @@
+use assert_cmd::Command;
+use std::fs::File;
+use std::io::Write;
+use std::panic;
+use std::path::PathBuf;
+use std::str;
+use tempfile::Builder;
+use tempfile::TempDir;
+
+// File sizes differ on both platform and on the format of the disk.
+// Windows: `ln` is not usually an available command; creation of symbolic links requires special enhanced permissions
+
+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();
+    file_path
+}
+
+#[cfg_attr(target_os = "windows", ignore)]
+#[test]
+pub fn test_soft_sym_link() {
+    let dir = Builder::new().tempdir().unwrap();
+    let file = build_temp_file(&dir);
+    let dir_s = dir.path().to_str().unwrap();
+    let file_path_s = file.to_str().unwrap();
+
+    let link_name = dir.path().join("the_link");
+    let link_name_s = link_name.to_str().unwrap();
+    let c = Command::new("ln")
+        .arg("-s")
+        .arg(file_path_s)
+        .arg(link_name_s)
+        .output();
+    assert!(c.is_ok());
+
+    let c = format!(" ┌── {}", link_name_s);
+    let b = format!(" ├── {}", file_path_s);
+    let a = format!("─┴ {}", dir_s);
+
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let output = cmd.arg("-p").arg("-c").arg(dir_s).unwrap().stdout;
+
+    let output = str::from_utf8(&output).unwrap();
+
+    assert!(output.contains(a.as_str()));
+    assert!(output.contains(b.as_str()));
+    assert!(output.contains(c.as_str()));
+}
+
+#[cfg_attr(target_os = "windows", ignore)]
+#[test]
+pub fn test_hard_sym_link() {
+    let dir = Builder::new().tempdir().unwrap();
+    let file = build_temp_file(&dir);
+    let dir_s = dir.path().to_str().unwrap();
+    let file_path_s = file.to_str().unwrap();
+
+    let link_name = dir.path().join("the_link");
+    let link_name_s = link_name.to_str().unwrap();
+    let c = Command::new("ln")
+        .arg(file_path_s)
+        .arg(link_name_s)
+        .output();
+    assert!(c.is_ok());
+
+    let link_output = format!(" ┌── {}", link_name_s);
+    let file_output = format!(" ┌── {}", file_path_s);
+    let dirs_output = format!("─┴ {}", dir_s);
+
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let output = cmd.arg("-p").arg("-c").arg(dir_s).unwrap().stdout;
+
+    // Because this is a hard link the file and hard link look identical. Therefore
+    // we cannot guarantee which version will appear first.
+    let output = str::from_utf8(&output).unwrap();
+    assert!(output.contains(dirs_output.as_str()));
+    assert!(output.contains(link_output.as_str()) || output.contains(file_output.as_str()));
+}
+
+#[cfg_attr(target_os = "windows", ignore)]
+#[test]
+pub fn test_recursive_sym_link() {
+    let dir = Builder::new().tempdir().unwrap();
+    let dir_s = dir.path().to_str().unwrap();
+
+    let link_name = dir.path().join("the_link");
+    let link_name_s = link_name.to_str().unwrap();
+
+    let c = Command::new("ln")
+        .arg("-s")
+        .arg(dir_s)
+        .arg(link_name_s)
+        .output();
+    assert!(c.is_ok());
+
+    let a = format!("─┬ {}", dir_s);
+    let b = format!(" └── {}", link_name_s);
+
+    let mut cmd = Command::cargo_bin("dust").unwrap();
+    let output = cmd.arg("-p").arg("-c").arg("-r").arg(dir_s).unwrap().stdout;
+
+    let output = str::from_utf8(&output).unwrap();
+    assert!(output.contains(a.as_str()));
+    assert!(output.contains(b.as_str()));
+}
Author	SHA1	Message	Date
andy.boot	4f06de8044	Notes on how to publish Install new release locally before pushing Noted here because I forget how to do this	2020-08-02 14:26:33 +01:00
andy.boot	2ca6fcc9ce	Increment version	2020-08-02 14:26:33 +01:00
pom421	278a31971c	add brew command in README (#97 ) * add brew command in README * Add an emoji * remove unncessary space	2020-08-02 11:47:12 +01:00
andy.boot	479e5899c6	Merge pull request #96 from yuqio/change-ansi-red Change red ANSI color code for size of biggest file	2020-06-29 13:21:28 +01:00
yuqio	c4c173e40e	Change red ANSI color code for size of biggest file The enum variant `ansi_term::Colour::Red` (which uses the ANSI color code `31`) is used instead of the code `196` to display the size of the largest file. This means that the red color of the terminal theme is used which is probably preferred by most users.	2020-06-29 01:00:11 +02:00
andy.boot	b8410ee4da	Merge pull request #95 from j2ghz/patch-1 Add packaging status	2020-06-07 13:09:23 +01:00
Jozef Hollý	0cb0396a84	Add packaging status	2020-06-07 11:07:04 +02:00
andy.boot	b1fe078e06	Merge pull request #93 from bootandy/ab-fixes Ab various minor fixes	2020-06-02 21:04:20 +01:00
andy.boot	b3d446bfef	Display: No padding if no bars drawn If not drawing the percent bars do not add padding to the filenames https://github.com/bootandy/dust/issues/89	2020-06-02 13:57:46 +01:00
andy.boot	34be81c216	Windows: If no color flag is already set ... then do not print a warning message https://github.com/bootandy/dust/issues/87	2020-06-02 13:45:12 +01:00
andy.boot	342164d357	Tests: Add Missing copy command should have been added with previous commit, would occastionaly have caused tests to fail if tests run in random order	2020-03-28 18:32:40 +00:00
andy.boot	bfa3594fe8	Merge pull request #86 from bootandy/ab-run-tests-tmp Move from ignore to jwalk & refactor tests	2020-03-28 16:27:45 +00:00
andy.boot	1f120de168	Run tests on /tmp directory	2020-03-28 16:07:35 +00:00
andy.boot	c0048b2ae4	Handle running with bad parameter Earlier refactor caused running with: 'dust -' to crash	2020-03-28 15:59:07 +00:00
andy.boot	402a8f8249	Remove thread parameter Code to limit number of threads removed. ignore crate seems quite good at using CPUs correctly	2020-03-28 15:59:07 +00:00
andy.boot	7cc7047b28	Move from assert_cli to assert_cmd assert_cli is deprecated. This allows us to use 'or' in the output of our integration tests	2020-03-28 15:06:40 +00:00
andy.boot	1953e107c2	Move everything to ignore instead of jwalk	2020-03-22 23:58:07 +00:00
andy.boot	f096e82754	Merge pull request #81 from rivy/fix.cicd-features Maint/CI ~ fix features option for GHA `cargo ...` and `cross ...`	2020-03-15 09:50:37 +00:00
Roy Ivy III	c3415df4b1	Maint/CI ~ fix features option for GHA `cargo ...` and `cross ...`	2020-03-10 14:10:28 -05:00
andy.boot	9452049aff	Increment version	2020-03-01 16:23:26 +00:00
andy.boot	09e3c27e70	Merge pull request #80 from bootandy/colours3 Rethink colors	2020-03-01 16:20:00 +00:00
andy.boot	b0bfe654c4	Rethink colors Use LS_COLORS to print default color of each file or folder Keep showing largest sub folder in red.	2020-03-01 16:10:22 +00:00
andy.boot	6bc44de495	Merge pull request #74 from rasmushalland/win-perf Avoid opening all files for reading on windows	2020-03-01 14:49:47 +00:00
Rasmus Halland	efb455c739	Opening files on windows got a lot cheaper. We avoid passing FILE_READ_DATA to CreateFile.	2020-03-01 14:41:21 +01:00
andy.boot	2c58041885	Clean up windows performance Instead of generating random values for the drive and inode counter on windows we return None instead	2020-03-01 14:41:21 +01:00
Rasmus Halland	c30f31c22c	Avoid opening all files for reading on windows It can be very expensive to do that, especially when it causes windows defender to read the files and scan them.	2020-03-01 14:41:21 +01:00
andy.boot	59f2cdfb84	Merge pull request #79 from NeelChotai/colours use LS_COLORS for largest subdirectories	2020-03-01 00:59:34 +00:00
Neel Chotai	795d91237d	update args descriptions	2020-03-01 00:51:36 +00:00
Neel Chotai	26ae050f16	use LS_COLORS for directories	2020-03-01 00:51:32 +00:00
Neel Chotai	58b395e7ee	fix compiler warning	2020-03-01 00:49:10 +00:00
andy.boot	3beb2b5274	Merge pull request #78 from bootandy/ab-fix-build Maybe fix windows 8 support	2020-02-29 23:06:57 +00:00
andy.boot	19d938b05e	Maybe fix windows 8 support enable_ansi_support must be run for windows 10 but is not required and indeed fails if run on windows < 10. Disable the expect so the code might run on windows 8 may fix: https://github.com/bootandy/dust/issues/70	2020-02-29 11:13:13 +00:00
andy.boot	d4daa82297	Merge pull request #77 from bootandy/ab-fix-build Ab fix build	2020-02-29 01:35:10 +00:00
andy.boot	21097578d9	Remove feature flag from build The --features flag was empty which caused the build to fail. As the features flag was not used it was removed.	2020-02-29 00:42:28 +00:00
andy.boot	069dc184a9	Merge pull request #73 from bootandy/readme Update readme	2020-02-20 20:39:20 +00:00
andy.boot	02fa657128	Update readme	2020-02-20 20:36:35 +00:00
andy.boot	bc0e376c88	New Version	2020-02-19 20:22:54 +00:00
andy.boot	d7c602a2d2	Merge pull request #72 from bootandy/ab-redesign Large redesign	2020-02-19 20:19:50 +00:00
andy.boot	603e6be7eb	Large redesign Use the whole width of the terminal assume width of 80 if none found Show percentages in the final column. Show ASCII bars indicating usage of the underlying directories in the space inbetween. Display (height of terminal - 10) entries by default. Reverse the output order so largest is at the bottom. Break up tests. Change older tests to check real output of program.	2020-02-18 20:58:53 +00:00
andy.boot	efa469e12f	Merge pull request #67 from bootandy/ab-simplify-inodes2 Simplify inodes & devices by removing Option	2020-02-10 22:11:35 +00:00
andy.boot	657858df16	Simplify inodes & devices by removing Option This code now won't compile on none-(windows/unix family) systems. [unix family includes mac] Removing this method allows us to remove an Option and simplify the code slightly	2020-02-09 14:33:46 +00:00
andy.boot	a8d700d530	Merge pull request #66 from bootandy/ab-refactor Refactor code	2020-02-09 14:27:05 +00:00
andy.boot	c408d8887d	Update docs for -X flag. -X flag changed subtly with previous pull request. It now requires a directory name and doesn't work on substrings.	2020-02-09 14:10:53 +00:00
andy.boot	be2250d241	Refactor: use if let instead of is_some	2020-02-09 14:10:53 +00:00
andy.boot	b6aa1378de	Fix bug for devices and apparent size If apparent_size was set and ignore files on other devices was set then the latter flat would not work. Fix this bug	2020-02-09 13:57:08 +00:00
andy.boot	2082141dfc	Add tests for should_ignore_file function function currently has a bug that is highlighted by second test	2020-02-09 13:57:08 +00:00
andy.boot	8a9b5e889d	Refactor path depth calculation Factor out duplicate code, Add comment explaining why filter is necessary (thanks to rivy)	2020-02-09 13:57:08 +00:00
andy.boot	871b7e90d8	Merge pull request #64 from rivy/rf.path Refactor ~ use Path/PathBuf instead of &str/String	2020-02-09 13:52:11 +00:00
andy.boot	edf300893c	Increment version	2020-02-09 10:08:41 +00:00
Roy Ivy III	a3d8fc00e1	Refactor ~ use `AsRef<Path>` where possible	2020-02-03 16:56:50 -06:00
Roy Ivy III	9d4531d48b	Refactor ~ use PathBuf instead of String	2020-02-03 16:56:47 -06:00
andy.boot	75e419e7ed	Update README.md Remove section on performance, I can not replicate this and don't want to cause controversy.	2020-02-03 20:54:19 +00:00
andy.boot	4a62fc5726	Update README.md include dutree in alternatives	2020-02-03 20:52:12 +00:00
andy boot	d2b959fdcf	Merge pull request #62 from rivy/add.gha Fix windows compilation and testing	2020-02-03 20:31:37 +00:00
Roy Ivy III	36ebb1b2b0	refactor ~ `strip_trailing_curdirs()` -> `normalize_path()` (a more accurate descriptor)	2020-01-29 18:36:13 -06:00
Roy Ivy III	e126a01096	Tests ~ improve portability of tests for 'Fix ~ improve portability of path manipulation'	2020-01-29 18:36:13 -06:00
Roy Ivy III	7a38a26593	Fix ~ (WinAPI) must use `Handle::from_path_any()` if target path might be a directory .# [why] "If you use `from_path()` on a directory, then subsequent queries using that handle will fail." Instead, use `from_path_any()` which supports opening files or directories. ref: "Struct winapi_util::Handle" from <https://docs.rs/crate/winapi-util>	2020-01-29 18:36:13 -06:00
Roy Ivy III	1af6e1f757	Tests ~ simplify by ignoring instead of skipping tests for 'Tests ~ disable two symlink tests which may not be possible on 'windows''	2020-01-29 18:36:13 -06:00
Roy Ivy III	affafcc5f2	Tests ~ simplify by ignoring instead of skipping tests for 'Tests ~ temporarily disable tests which vary by 'windows' hosts'	2020-01-29 18:36:13 -06:00
Roy Ivy III	26ef8c3e59	Tests ~ add test case to 'Fix ~ improve portability of path manipulation'	2020-01-29 18:36:13 -06:00
Roy Ivy III	0898ee6bf0	Maint/CI ~ temporarily disable non-working `cargo tarpaulin` test coverage	2020-01-29 18:36:13 -06:00
Roy Ivy III	5ac168868e	Tests ~ temporarily disable tests which vary by 'windows' hosts	2020-01-29 18:36:13 -06:00
Roy Ivy III	684994ee11	Tests ~ disable two symlink tests which may not be possible on 'windows'	2020-01-29 18:36:12 -06:00
Roy Ivy III	416ad517fe	Tests ~ fix windows testing	2020-01-29 18:36:12 -06:00
Roy Ivy III	7c34389aea	Fix ~ improve portability of path manipulation	2020-01-29 18:36:12 -06:00
Roy Ivy III	18510130d8	Maint/CI ~ add GitHub-Actions CI (aka GHA)	2020-01-29 18:36:12 -06:00
andy boot	0bf8c914b7	Merge pull request #59 from Celti/exclude-multiple Allow multiple --ignore-directory flags	2020-01-21 23:32:49 +00:00
Celti Burroughs	95888d5f31	Allow multiple --ignore-directory flags	2020-01-21 15:40:04 -07:00
andy boot	5d195e27cb	Merge pull request #61 from lespea/fixWinBreaks Fix get_metadata on windows	2020-01-21 22:06:00 +00:00
Adam Lesperance	0c7b05fec9	Fix get_metadata on windows The MetadataExt functions are nightly-only right now so we need to call the windows api ourselves to get the device number. The winapi_util package has a nice wrapper to do this for us. The get_device function doesn't appear to be used anywhere so I removed it.	2020-01-21 00:06:41 -06:00
andy boot	bc895879e6	Update README.md	2020-01-20 23:36:59 +00:00
andy boot	31f01c061a	Update README.md	2020-01-19 09:55:51 +00:00
andy boot	17894e723c	Merge pull request #55 from bootandy/ab-neaten Ab fix clippy warnings, increment version number	2020-01-19 09:51:33 +00:00
andy boot	6141ddddea	Merge pull request #54 from bootandy/ab-ignore-dir Add option to ignore directories	2020-01-19 09:35:04 +00:00
andy.boot	352c0f7d90	Increment version number	2020-01-19 09:32:49 +00:00
andy.boot	842a8ec673	Clean up clippy warnings	2020-01-19 09:32:35 +00:00
andy.boot	d97edba041	Add option to ignore directories https://github.com/bootandy/dust/issues/46 Add -X flag used to ignore any file or directory that matches the provided substring. This means that -X e will ignore any file or directory with an 'e' in it.	2020-01-19 09:23:13 +00:00
andy boot	f64e0094f1	Merge pull request #53 from bootandy/single_cpu Fix dust for single core machines	2020-01-18 23:06:28 +00:00
andy.boot	3d2477e554	Allow dust to run on single core machines Force dust to use 2 threads if there is only 1 cpu JWalk breaks if it tries to run on a single cpu https://github.com/jessegrosjean/jwalk/issues/15 This is a hack because I can't figure out how to fix JWalk. This code and the num_cpu crate can be removed when the bug is fixed Also I have conflated cpus with cores while describing this issue. It is very difficult to test as I don't have a single core machine.	2020-01-18 22:04:08 +00:00
andy.boot	350d695f7c	Add num_cpus as Cargo dependency Will be used to detect single core computers which crash Jwalk	2020-01-18 21:57:11 +00:00
andy boot	f8b8b8a788	Merge pull request #51 from bootandy/ab-exclude Support excluding filesystems with -x	2020-01-18 21:54:41 +00:00
andy.boot	b9c27f9838	get_filesystem returns Result instead of option Removes unwrap and returns a Result instead of panicing if an invalid path is given. Previously if the flag: '-x' was provided with an argument of an invalid directory the code would crash here	2020-01-16 23:50:56 +00:00
andy.boot	5541df6a73	Refactor code Reduce complexity of examine_dir. No logic changes	2020-01-15 20:10:33 +00:00
andy.boot	bdc3d404ef	Support excluding filesystems with -x https://github.com/bootandy/dust/issues/50 Add optional -x flag to limit search to the current filesystem. Add (untested) support for windows for the equivalent of inode and device.	2020-01-15 19:51:16 +00:00
andy boot	f395a7d768	Merge pull request #49 from bootandy/ab-upgrade Upgrade libraries. Fix assert_cli	2019-12-30 22:07:04 +00:00
andy.boot	a36eec6cae	Increment version number	2019-12-30 21:40:30 +00:00
Adam Lesperance	38938e005e	Fix colors on windows * Initialize ansi_term if we're on windows * Silence build warning on non-unix targets * Update ansi-term which has windows specific fixes (and assert_cli while I'm at it)	2019-12-30 21:36:49 +00:00
andy.boot	da61b15715	Upgrade libraries. Fix assert_cli New assert_cli library requires we cast the param passed to 'is()' as it can no longer cast implicitly. I am guessing this is because it is due to confusion between whether to cast to u8 or str	2019-12-30 21:23:53 +00:00
andy boot	0b22d0a977	Merge pull request #47 from bootandy/ab-bug-fix Ab bug fix	2019-12-30 21:12:37 +00:00
andy.boot	356d14ac0f	Hack fix around JWalk behaviour. Jwalk returns '/' as a child of the current node which breaks things. https://github.com/jessegrosjean/jwalk/issues/13	2019-12-23 15:51:12 +00:00
andy.boot	311bc45388	Verify that '/' is parent of everything Bug could occur when run with '/' as it wasn't considered the parent of '/usr' due to having the same number of '/'s in the name	2019-12-23 15:50:01 +00:00
andy.boot	ef66fb3938	Remove useless sort The data coming in is already sorted. We should not need to sort it a second time	2019-12-23 15:49:26 +00:00
andy.boot	b934445e04	Pin jwalk to dependency version https://github.com/jessegrosjean/jwalk/issues/13 Having raised the above issue I don't want it fixed in a minor version as I have added a work around	2019-12-23 15:48:38 +00:00
andy boot	a6839c020f	Merge pull request #43 from bootandy/no_color Add flag for No color, refactor tests	2019-12-08 23:50:58 +00:00
andy.boot	7e47d5b47a	Increment version number	2019-12-08 23:36:48 +00:00
andy.boot	6a65570f3f	Refactor tests Make use of the 'is' more to test the entire output. Add test for no_color mode. Replace several calls to format_string with calls that build a string directly. I feel format_string is becoming unweildly and this simplfies the tests	2019-12-08 23:34:28 +00:00
andy.boot	a4ca78dbe4	Add option flag for no colors https://github.com/bootandy/dust/issues/37	2019-12-08 14:46:45 +00:00
andy boot	bfbe8a57ae	Merge pull request #42 from bootandy/cleanup Cleanup code & fix issue	2019-12-07 09:16:51 +00:00
andy.boot	b4b73e45f3	Cargo update	2019-12-05 21:51:04 +00:00
andy.boot	78119aba0f	Mark function as ignored by clippy We don't want to collapse this if - it is easier to reason about this way	2019-12-05 21:50:26 +00:00
andy.boot	5535478fe8	Fix substring bug When one directory was a substring of another the directory would appear as a subdirectory instead of a sibling Fixed originally by this: `6e03dd77e6` Broken by this: `db6c8a019d` Added integration test as this has bitten me before	2019-12-05 21:35:15 +00:00
andy.boot	7ba91a4a22	Rename variable cpu -> threads. threads more accurately represents the number of threads we will start to run	2019-12-04 20:49:45 +00:00
andy boot	79416fd5fc	Merge pull request #40 from AdminXVII/parallel-walk Use jwalk instead of walkdir: parallel walking for performance boost	2019-12-04 20:45:25 +00:00
Xavier L'Heureux	b66523cff3	Apply clippy lints	2019-12-03 18:34:47 -05:00
Xavier L'Heureux	19a41aa382	Add CLI option for the number of threads to spawn	2019-12-03 18:27:02 -05:00
Xavier L'Heureux	62ac9b623a	Make sure to count the hidden directories	2019-11-26 08:31:52 -05:00
Xavier L'Heureux	bf28d42483	Update Performance section of README	2019-11-26 08:31:52 -05:00
Xavier L'Heureux	f8ce6c97bf	Use more rusty patterns and preallocate enough space	2019-11-26 08:31:52 -05:00
Xavier L'Heureux	86b3cccaf6	perf(IO): use parallel walkdir (jwalk) for super faster traversal	2019-11-26 08:31:52 -05:00
andy boot	3c920431fa	Merge pull request #38 from lespea/update_deps Latest deps	2019-11-25 23:32:09 +00:00
Adam Lesperance	a1ece05af5	Testing deps should only be used when testing	2019-11-21 00:05:53 -06:00
Adam Lesperance	cef2c588b7	Latest deps	2019-11-20 23:05:57 -06:00
andy boot	7d8e498238	Merge pull request #36 from bootandy/try_to_fix_releases Update secure key in Travis	2019-11-02 01:11:42 +00:00
andy boot	53c7a69dcb	Merge pull request #35 from bootandy/fix-version Provide version information with -V	2019-11-02 00:45:36 +00:00
andy.boot	9a9cbefd3d	Provide version information with -V clap does most of this for you - I had forgotten to wire it up https://github.com/bootandy/dust/issues/33 increment build version	2019-11-02 00:42:57 +00:00
andy boot	224a2c6f25	Merge pull request #32 from mvertescher/update-edition Upgrade to the 2018 edition	2019-10-27 10:39:04 +00:00
Matt Vertescher	99003cbba9	Upgrade to the 2018 edition	2019-10-26 15:19:07 -04:00
andy.boot	c83803b440	Add comment to travis file So I don't forget how to do a release next time	2019-10-09 00:43:04 +01:00