Merge pull request #53 from sreedevk/v0.2.0

v0.2.0  Architecture Improvements

.github/workflows/release.yml

@@ -0,0 +1,136 @@
+# CI that:
+#
+# * checks for a Git Tag that looks like a release ("v1.2.0")
+# * creates a Github Release™️
+# * builds binaries/packages with cargo-dist
+# * uploads those packages to the Github Release™️
+#
+# Note that the Github Release™️ will be created before the packages,
+# so there will be a few minutes where the release has no packages
+# and then they will slowly trickle in, possibly failing. To make
+# this more pleasant we mark the release as a "draft" until all
+# artifacts have been successfully uploaded. This allows you to
+# choose what to do with partial successes and avoids spamming
+# anyone with notifications before the release is actually ready.
+name: Release
+
+permissions:
+  contents: write
+
+# This task will run whenever you push a git tag that looks like
+# a version number. We just look for `v` followed by at least one number
+# and then whatever. so `v1`, `v1.0.0`, and `v1.0.0-prerelease` all work.
+#
+# If there's a prerelease-style suffix to the version then the Github Release™️
+# will be marked as a prerelease (handled by taiki-e/create-gh-release-action).
+#
+# Note that when generating links to uploaded artifacts, cargo-dist will currently
+# assume that your git tag is always v{VERSION} where VERSION is the version in
+# the published package's Cargo.toml (this is the default behaviour of cargo-release).
+# In the future this may be made more robust/configurable.
+on:
+  push:
+    tags:
+      - v[0-9]+.*
+
+env:
+  ALL_CARGO_DIST_TARGET_ARGS: --target=x86_64-unknown-linux-gnu --target=x86_64-apple-darwin --target=x86_64-pc-windows-msvc 
+  ALL_CARGO_DIST_INSTALLER_ARGS: 
+
+jobs:
+  # Create the Github Release™️ so the packages have something to be uploaded to
+  create-release:
+    runs-on: ubuntu-latest
+    outputs:
+      tag: ${{ steps.create-gh-release.outputs.computed-prefix }}${{ steps.create-gh-release.outputs.version }}
+    steps:
+      - uses: actions/checkout@v3
+      - id: create-gh-release
+        uses: taiki-e/create-gh-release-action@v1
+        with:
+          draft: true
+          # (required) GitHub token for creating GitHub Releases.
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+
+  # Build and packages all the things
+  upload-artifacts:
+    needs: create-release
+    strategy:
+      matrix:
+        # For these target platforms
+        include:
+        - target: x86_64-unknown-linux-gnu
+          os: ubuntu-20.04
+          install-dist: curl --proto '=https' --tlsv1.2 -L -sSf https://github.com/axodotdev/cargo-dist/releases/download/v0.0.2/installer.sh | sh
+        - target: x86_64-apple-darwin
+          os: macos-11
+          install-dist: curl --proto '=https' --tlsv1.2 -L -sSf https://github.com/axodotdev/cargo-dist/releases/download/v0.0.2/installer.sh | sh
+        - target: x86_64-pc-windows-msvc
+          os: windows-2019
+          install-dist: irm 'https://github.com/axodotdev/cargo-dist/releases/download/v0.0.2/installer.ps1' | iex
+    runs-on: ${{ matrix.os }}
+    env:
+      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install Rust
+        run: rustup update stable && rustup default stable
+      - name: Install cargo-dist
+        run: ${{ matrix.install-dist }}
+      - name: Run cargo-dist
+        # This logic is a bit janky because it's trying to be a polyglot between
+        # powershell and bash since this will run on windows, macos, and linux!
+        # The two platforms don't agree on how to talk about env vars but they
+        # do agree on 'cat' and '$()' so we use that to marshal values between commmands.
+        run: |
+          # Actually do builds and make zips and whatnot
+          cargo dist --target=${{ matrix.target }} --output-format=json > dist-manifest.json
+          echo "dist ran successfully"
+          cat dist-manifest.json
+          # Parse out what we just built and upload it to the Github Release™️
+          cat dist-manifest.json | jq --raw-output ".releases[].artifacts[].path" > uploads.txt
+          echo "uploading..."
+          cat uploads.txt
+          gh release upload ${{ needs.create-release.outputs.tag }} $(cat uploads.txt)
+          echo "uploaded!"
+
+  # Compute and upload the manifest for everything
+  upload-manifest:
+    needs: create-release
+    runs-on: ubuntu-latest
+    env:
+      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install Rust
+        run: rustup update stable && rustup default stable
+      - name: Install cargo-dist
+        run: curl --proto '=https' --tlsv1.2 -L -sSf https://github.com/axodotdev/cargo-dist/releases/download/v0.0.2/installer.sh | sh
+      - name: Run cargo-dist manifest
+        run: |
+          # Generate a manifest describing everything
+          cargo dist manifest --no-local-paths --output-format=json $ALL_CARGO_DIST_TARGET_ARGS $ALL_CARGO_DIST_INSTALLER_ARGS > dist-manifest.json
+          echo "dist manifest ran successfully"
+          cat dist-manifest.json
+          # Upload the manifest to the Github Release™️
+          gh release upload ${{ needs.create-release.outputs.tag }} dist-manifest.json
+          echo "uploaded manifest!"
+          # Edit the Github Release™️ title/body to match what cargo-dist thinks it should be
+          CHANGELOG_TITLE=$(cat dist-manifest.json | jq --raw-output ".releases[].changelog_title")
+          cat dist-manifest.json | jq --raw-output ".releases[].changelog_body" > new_dist_changelog.md
+          gh release edit ${{ needs.create-release.outputs.tag }} --title="$CHANGELOG_TITLE" --notes-file=new_dist_changelog.md
+          echo "updated release notes!"
+
+  # Mark the Github Release™️ as a non-draft now that everything has succeeded!
+  publish-release:
+    needs: [create-release, upload-artifacts, upload-manifest]
+    runs-on: ubuntu-latest
+    env:
+      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: mark release as non-draft
+        run: |
+          gh release edit ${{ needs.create-release.outputs.tag }} --draft=false
+

.gitignore

@@ -1,2 +1,2 @@
 /target
-/test_data
+/Cargo.lock

CONTRIBUTING.md

@@ -12,6 +12,7 @@
 * Assign the Issue to yourself (if unassigned) before you start working in order to avoid any conficts. 
 * Open a new GitHub pull request with the patch.
 * Ensure the PR description clearly describes the problem and solution. Include the relevant issue number.
+* Make sure that the PR points to the development branch.
 
 #### **Did you fix whitespace, format code, or make a purely cosmetic patch?**
 

Cargo.toml

@@ -1,27 +1,36 @@
 [package]
 name = "deduplicator"
-version = "0.0.8"
+version = "0.2.0"
 edition = "2021"
 description = "find,filter,delete Duplicates"
 license = "MIT"
-authors = ["Sreedev Kodichath <sreedevpadmakumar@gmail.com>", "Valentin Bersier <vbersier@gmail.com>", "Dhruva Sagar <dhruva.sagar@gmail.com>"]
+authors = [
+    "Sreedev Kodichath <sreedevpadmakumar@gmail.com>",
+    "Valentin Bersier <vbersier@gmail.com>",
+    "Dhruva Sagar <dhruva.sagar@gmail.com>",
+]
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
 anyhow = "1.0.68"
+bytesize = "1.1.0"
 chrono = "0.4.23"
 clap = { version = "4.0.32", features = ["derive"] }
 colored = "2.0.0"
-crossterm = "0.25.0"
+dashmap = { version = "5.4.0", features = ["rayon"] }
 fxhash = "0.2.1"
-glob = "0.3.0"
-humansize = "2.1.2"
-indicatif = { version = "0.17.2", features = ["rayon", "tokio"] }
+globwalk = "0.8.1"
+indicatif = { version = "0.17.2", features = ["rayon"] }
 itertools = "0.10.5"
+memmap2 = "0.5.8"
+pathdiff = "0.2.1"
 prettytable-rs = "0.10.0"
 rayon = "1.6.1"
-sqlite = "0.30.3"
-thiserror = "1.0.38"
-tokio = { version = "1.23.0", features = ["full"] }
-tui = "0.19.0"
+unicode-segmentation = "1.10.0"
+
+# generated by 'cargo dist init'
+[profile.dist]
+inherits = "release"
+debug = true
+split-debuginfo = "packed"

README.md

@@ -4,50 +4,120 @@
   Find, Sort, Filter & Delete duplicate files 
 </p>
 
-<p align="center">
-NOTE: This project is still being developed. At the moment, as shown in the screenshot below, deduplicator is able to scan through and list duplicates with and without caching. Contributions are welcome.
-</p>
-
-<h2 align="center">Usage</h2>
+## Usage
 
 ```bash
-Usage: deduplicator [OPTIONS]
+Usage: deduplicator [OPTIONS] [scan_dir_path]
+
+Arguments:
+  [scan_dir_path]  Run Deduplicator on dir different from pwd (e.g., ~/Pictures )
 
 Options:
-  -t, --types <TYPES>  Filetypes to deduplicate (default = all)
-      --dir <DIR>      Run Deduplicator on dir different from pwd
-  -n, --nocache        Don't use cache for indexing files (default = false)
-  -i, --interactive    Delete files interactively
-  -h, --help           Print help information
-  -V, --version        Print version information
+  -t, --types <TYPES>          Filetypes to deduplicate [default = all]
+  -i, --interactive            Delete files interactively
+  -s, --min-size <MIN_SIZE>    Minimum filesize of duplicates to scan (e.g., 100B/1K/2M/3G/4T) [default: 1b]
+  -d, --max-depth <MAX_DEPTH>  Max Depth to scan while looking for duplicates
+      --min-depth <MIN_DEPTH>  Min Depth to scan while looking for duplicates
+  -f, --follow-links           Follow links while scanning directories
+  -h, --help                   Print help information
+  -V, --version                Print version information
+```
+### Examples
+
+```bash
+# Scan for duplicates recursively from the current dir, only look for png, jpg & pdf file types & interactively delete files
+deduplicator -t pdf,jpg,png -i
+
+# Scan for duplicates recursively from the ~/Pictures dir, only look for png, jpeg, jpg & pdf file types & interactively delete files
+deduplicator ~/Pictures/ -t png,jpeg,jpg,pdf -i
+
+# Scan for duplicates in the ~/Pictures without recursing into subdirectories
+deduplicator ~/Pictures --max-depth 0
+
+# look for duplicates in the ~/.config directory while also recursing into symbolic link paths
+deduplicator ~/.config --follow-links
+
+# scan for duplicates that are greater than 100mb in the ~/Media directory
+deduplicator ~/Media --min-size 100mb
 ```
 
-<h2 align="center">Installation</h2>
+## Installation
 
-<p align="center">Currently, deduplicator is only installable via rust's cargo package manager</p>
+### Cargo Install
+
+#### Stable
+
+```bash
+$ cargo install deduplicator
+```
+
+#### Nightly
+
+if you'd like to install with nightly features, you can use
+
+```bash
+$ cargo install --git https://github.com/sreedevk/deduplicator
+```
+Please note that if you use a version manager to install rust (like asdf), you need to reshim (`asdf reshim rust`).
+
+### Linux (Pre-built Binary)
+
+you can download the pre-built binary from the [Releases](https://github.com/sreedevk/deduplicator/releases) page.
+download the `deduplicator-x86_64-unknown-linux-gnu.tar.gz` for linux. Once you have the tarball file with the executable,
+you can follow these steps to install:
+
+```bash
+$ tar -zxvf deduplicator-x86_64-unknown-linux-gnu.tar.gz
+$ sudo mv deduplicator /usr/bin/
+```
+
+### Mac OS (Pre-built Binary)
+
+you can download the pre-build binary from the [Releases](https://github.com/sreedevk/deduplicator/releases) page.
+download the `deduplicator-x86_64-apple-darwin.tar.gz` tarball for mac os. Once you have the tarball file with the executable, you can follow these steps to install:
+
+```bash
+$ tar -zxvf deduplicator-x86_64-unknown-linux-gnu.tar.gz
+$ sudo mv deduplicator /usr/bin/
+```
+
+### Windows (Pre-built Binary)
+
+you can download the pre-build binary from the [Releases](https://github.com/sreedevk/deduplicator/releases) page.
+download the `deduplicator-x86_64-pc-windows-msvc.zip` zip file for windows. unzip the `zip`  file & move the `deduplicator.exe` to a location in the PATH system environment variable.
+
+Note: If you Run into an msvc error, please install MSCV from [here](https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170)
+
+## Performance
+
+Deduplicator uses size comparison and fxhash (a non non-cryptographic hashing algo) to quickly scan through large number of files to find duplicates. its also highly parallel (uses rayon and dashmap). I was able to scan through 120GB of files (Videos, PDFs, Images) in ~300ms. checkout the benchmarks
+
+## benchmarks
+
+| Command | Dirsize | Filecount | Mean [ms] | Min [ms] | Max [ms] | Relative |
+|:---|:---|---:|---:|---:|---:|---:|
+| `deduplicator ~/Data/tmp` | (~120G) | 721 files | 33.5 ± 28.6 | 25.3 | 151.5 | 1.87 ± 1.60 |
+| `deduplicator ~/Data/books` | (~8.6G) | 1419 files | 24.5 ± 1.0 | 22.9 | 28.1 | 1.37 ± 0.08 |
+| `deduplicator ~/Data/books --min-size 10M` | (~8.6G) | 1419 files | 17.9 ± 0.7 | 16.8 | 20.0 | 1.00 |
+| `deduplicator ~/Data/ --types pdf,jpg,png,jpeg` | (~290G) | 104222 files | 1207.2 ± 37.0 | 1172.2 | 1287.7 | 67.27 ± 3.33 |
+
+* The last entry is lower because of the number of files deduplicator had to go through (~660895 Files). The average size of the files rarely affect the performance of deduplicator.
+
+These benchmarks were run using [hyperfine](https://github.com/sharkdp/hyperfine). Here are the specs of the machine used to benchmark deduplicator:
 
 ```
-cargo install deduplicator
+OS: Arch Linux x86_64 
+Host: Precision 5540
+Kernel: 5.15.89-1-lts 
+Uptime: 4 hours, 44 mins 
+Shell: zsh 5.9                        
+Terminal: kitty 
+CPU: Intel i9-9880H (16) @ 4.800GHz 
+GPU: NVIDIA Quadro T2000 Mobile / Max-Q 
+GPU: Intel CoffeeLake-H GT2 [UHD Graphics 630] 
+Memory: 31731MiB (~32GiB)
 ```
-<p align="center">
-  note that if you use a version manager to install rust (like asdf), you need to reshim (`asdf reshim rust`).
-</p>
 
-<h2 align="center">Performance</h2>
-
-<p align="center">
-  Deduplicator uses fxhash (a non-cryptographic hashing algorithm) which is extremely fast. As a result, deduplicator is able to process huge amounts of data in a couple of seconds.</p>
-
-  <p align="center">
-    While testing, Deduplicator was able to go through 8.6GB of pdf files and detect duplicates in 2.9 seconds
-  </p>
-<h2 align="center">Screenshots</h2>
-
-<p align="center>
-<a href="https://asciinema.org/a/oMzGUSlAx32xYXcPBY64uAuLB" target="_blank"><img src="https://asciinema.org/a/oMzGUSlAx32xYXcPBY64uAuLB.svg" /></a>
-</p>
-
-<p align="center">
-  <img align="center" src="https://user-images.githubusercontent.com/36154121/211458077-90092aa3-496c-492f-a061-618059890d5f.png" width="500" height="400" />
-</p>
+## Screenshots
 
+![](https://user-images.githubusercontent.com/36154121/213618143-e5182e39-731e-4817-87dd-1a6a0f38a449.gif)

src/app/event_handler.rs

@@ -1,28 +0,0 @@
-use std::time::Duration;
-
-use anyhow::Result;
-use crossterm::event::{self, KeyCode, KeyEvent};
-
-use super::events;
-
-pub struct EventHandler;
-
-impl EventHandler {
-    pub fn init() -> Result<events::Event> {
-        if crossterm::event::poll(Duration::from_millis(10))? {
-            match event::read()? {
-                event::Event::Key(keycode) => Self::handle_keypress(keycode),
-                _ => Ok(events::Event::Noop),
-            }
-        } else {
-            Ok(events::Event::Noop)
-        }
-    }
-
-    fn handle_keypress(keyevent: KeyEvent) -> Result<events::Event> {
-        match keyevent.code {
-            KeyCode::Char('q') => Ok(events::Event::Exit),
-            _ => Ok(events::Event::Noop),
-        }
-    }
-}

src/app/events.rs

@@ -1,4 +0,0 @@
-pub enum Event {
-    Exit,
-    Noop,
-}

src/app/file_manager.rs

@@ -1,14 +0,0 @@
-use crate::database::File;
-use anyhow::Result;
-use colored::Colorize;
-
-pub fn delete_files(files: Vec<File>) -> Result<()> {
-    files.into_iter().for_each(|file| {
-        match std::fs::remove_file(file.path.clone()) {
-            Ok(_) => println!("{}: {}", "DELETED".green(), file.path),
-            Err(e) => println!("{}: {}", "FAILED".red(), file.path)
-        }
-    });
-
-    Ok(())
-}

src/app/mod.rs

@@ -1,89 +0,0 @@
-#![allow(unused)]
-
-mod event_handler;
-mod events;
-mod formatter;
-mod ui;
-pub mod file_manager;
-
-use std::{io, thread, time::Duration};
-
-use anyhow::{anyhow, Result};
-use crossterm::{event, execute, terminal};
-use event_handler::EventHandler;
-use tui::{
-    backend::CrosstermBackend,
-    widgets::{Block, Borders, Widget},
-    Terminal,
-};
-use ui::Ui;
-
-use crate::database;
-use crate::output;
-use crate::params::Params;
-use crate::scanner;
-
-pub struct App;
-
-impl App {
-    pub fn init(app_args: &Params) -> Result<()> {
-        // let mut term = Self::init_terminal()?;
-
-        let connection = database::get_connection(app_args)?;
-        let duplicates = scanner::duplicates(app_args, &connection)?;
-
-        // Self::init_render_loop(&mut term)?;
-        // Self::cleanup(&mut term)?;
-
-        match app_args.interactive {
-            true => output::interactive(duplicates, app_args),
-            false => output::print(duplicates, app_args) /* TODO: APP TUI INIT FUNCTION */
-        }
-        
-        Ok(())
-    }
-
-    fn cleanup(term: &mut Terminal<CrosstermBackend<io::Stdout>>) -> Result<()> {
-        terminal::disable_raw_mode()?;
-        execute!(
-            term.backend_mut(),
-            terminal::LeaveAlternateScreen,
-            event::DisableMouseCapture
-        )?;
-
-        term.show_cursor()?;
-        Ok(())
-    }
-
-    fn render_cycle(term: &mut Terminal<CrosstermBackend<io::Stdout>>) -> Result<()> {
-        match EventHandler::init()? {
-            events::Event::Noop => Ui::render_frame(term),
-            events::Event::Exit => Err(anyhow!("Exit")),
-        }
-    }
-
-    fn init_render_loop(term: &mut Terminal<CrosstermBackend<io::Stdout>>) -> Result<()> {
-        // this could be simplified with a `while Self::render_cycle(term).is_ok() {}` in the current state, but maybe
-        // it's good to keep it to handle errors in the future
-        loop {
-            match Self::render_cycle(term) {
-                Ok(_) => continue,
-                Err(_) => break,
-            }
-        }
-
-        Ok(())
-    }
-
-    fn init_terminal() -> Result<Terminal<CrosstermBackend<io::Stdout>>> {
-        terminal::enable_raw_mode()?;
-        let mut stdout = io::stdout();
-        execute!(
-            stdout,
-            terminal::EnterAlternateScreen,
-            event::EnableMouseCapture
-        )?;
-        let backend = CrosstermBackend::new(stdout);
-        Ok(Terminal::new(backend)?)
-    }
-}

src/app/ui.rs

@@ -1,54 +0,0 @@
-use std::io;
-
-use anyhow::Result;
-use tui::{
-    backend::{Backend, CrosstermBackend},
-    layout::{Constraint, Direction, Layout, Rect},
-    style::{Modifier, Style},
-    text::{Span, Spans},
-    widgets::{Block, Borders, List, ListItem, Widget},
-    Frame, Terminal,
-};
-
-pub struct Ui;
-
-impl Ui {
-    fn generate_file_list() -> impl Widget {
-        let tasks: Vec<ListItem> = vec!["Sreedev"; 100]
-            .into_iter()
-            .map(|item| ListItem::new(vec![Spans::from(Span::raw(item))]))
-            .collect();
-
-        List::new(tasks)
-            .block(Block::default().borders(Borders::ALL).title("List"))
-            .highlight_style(Style::default().add_modifier(Modifier::BOLD))
-            .highlight_symbol("> ")
-    }
-
-    fn generate_info_bar() -> impl Widget {
-        Block::default().title("Description").borders(Borders::ALL)
-    }
-
-    fn generate_file_desc() -> impl Widget {
-        Block::default().title("Description").borders(Borders::ALL)
-    }
-
-    pub fn render_frame(term: &mut Terminal<CrosstermBackend<io::Stdout>>) -> Result<()> {
-        term.draw(|f| {
-            let windows = Layout::default()
-                .direction(Direction::Vertical)
-                .constraints([Constraint::Ratio(2, 16), Constraint::Ratio(14, 16)].as_ref())
-                .split(f.size());
-
-            let subwindows = Layout::default()
-                .direction(Direction::Horizontal)
-                .constraints([Constraint::Ratio(1, 4), Constraint::Ratio(3, 4)].as_ref())
-                .split(windows[1]);
-
-            f.render_widget(Self::generate_info_bar(), windows[0]);
-            f.render_widget(Self::generate_file_list(), subwindows[0]);
-            f.render_widget(Self::generate_file_desc(), subwindows[1]);
-        })?;
-        Ok(())
-    }
-}

src/database.rs

@@ -1,89 +0,0 @@
-use std::env::temp_dir;
-
-use anyhow::Result;
-
-use crate::params::Params;
-
-#[derive(Debug, Clone)]
-pub struct File {
-    pub path: String,
-    pub hash: String,
-}
-
-fn db_connection_url(args: &Params) -> String {
-    match args.nocache {
-        true => String::from(":memory:"),
-        false => {
-            let temp_dir_path = temp_dir();
-            format!("{}/deduplicator.db", temp_dir_path.display())
-        }
-    }
-}
-
-pub fn get_connection(args: &Params) -> Result<sqlite::Connection, sqlite::Error> {
-    sqlite::open(db_connection_url(args)).and_then(|conn| {
-        setup(&conn).ok();
-        Ok(conn)
-    })
-}
-
-pub fn setup(connection: &sqlite::Connection) -> Result<()> {
-    let query = "CREATE TABLE files (file_identifier STRING, hash STRING)";
-    connection.execute(query).ok();
-    Ok(())
-}
-
-pub fn put(file: &File, connection: &sqlite::Connection) -> Result<()> {
-    let query = format!(
-        "INSERT INTO files (file_identifier, hash) VALUES (\"{}\", \"{}\")",
-        file.path, file.hash
-    );
-    connection.execute(query)?;
-    Ok(())
-}
-
-pub fn indexed_paths(connection: &sqlite::Connection) -> Result<Vec<File>> {
-    let query = "SELECT * FROM files";
-
-    let result: Vec<File> = connection
-        .prepare(query)?
-        .into_iter()
-        .filter_map(|row_result| row_result.ok())
-        .map(|row| {
-            let path = row.read::<&str, _>("file_identifier").to_string();
-            let hash = row.read::<i64, _>("hash").to_string();
-            File { path, hash }
-        })
-        .collect();
-
-    Ok(result)
-}
-
-pub fn duplicate_hashes(connection: &sqlite::Connection, path: &str) -> Result<Vec<File>> {
-    let query = format!(
-        "
-            SELECT a.* FROM files a
-            JOIN (SELECT file_identifier, hash, COUNT(*)
-            FROM files
-            GROUP BY hash
-            HAVING count(*) > 1 ) b
-            ON a.hash = b.hash
-            WHERE a.file_identifier LIKE \"{}%\"
-            ORDER BY a.file_identifier
-        ",
-        path
-    );
-
-    let result: Vec<File> = connection
-        .prepare(query)?
-        .into_iter()
-        .filter_map(|row_result| row_result.ok())
-        .map(|row| {
-            let path = row.read::<&str, _>("file_identifier").to_string();
-            let hash = row.read::<i64, _>("hash").to_string();
-            File { path, hash }
-        })
-        .collect();
-
-    Ok(result)
-}

src/fileinfo.rs

@@ -0,0 +1,40 @@
+use anyhow::Result;
+use memmap2::Mmap;
+use std::fs;
+use std::hash::Hasher;
+use std::{fs::Metadata, path::PathBuf};
+
+#[derive(Debug, Clone)]
+pub struct FileInfo {
+    pub path: PathBuf,
+    pub filemeta: Metadata,
+    pub hash: Option<String>,
+    pub size: u64,
+}
+
+impl FileInfo {
+    pub fn hash(&self) -> Result<Self> {
+        let file = fs::File::open(self.path.clone())?;
+        let mapper = unsafe { Mmap::map(&file)? };
+        let mut primhasher = fxhash::FxHasher::default();
+
+        mapper
+            .chunks(1_000_000)
+            .for_each(|chunk| primhasher.write(chunk));
+
+        Ok(Self {
+            hash: Some(primhasher.finish().to_string()),
+            ..self.clone()
+        })
+    }
+
+    pub fn new(path: PathBuf) -> Result<Self> {
+        let filemeta = std::fs::metadata(path.clone())?;
+        Ok(Self {
+            path,
+            filemeta: filemeta.clone(),
+            hash: None,
+            size: filemeta.len(),
+        })
+    }
+}

src/formatter.rs

@@ -0,0 +1,129 @@
+pub struct Formatter;
+use crate::fileinfo::FileInfo;
+use crate::params::Params;
+use anyhow::Result;
+use chrono::{DateTime, Utc};
+use colored::Colorize;
+use dashmap::DashMap;
+use indicatif::{
+    ParallelProgressIterator, ProgressBar, ProgressFinish, ProgressIterator, ProgressStyle,
+};
+use pathdiff::diff_paths;
+use prettytable::{format, row, Table};
+use rayon::prelude::*;
+use std::borrow::Cow;
+use std::path::PathBuf;
+use std::time::Duration;
+
+impl Formatter {
+    pub fn human_path(
+        file: &FileInfo,
+        app_args: &Params,
+        min_path_length: usize,
+    ) -> Result<String> {
+        let base_directory: PathBuf = app_args.get_directory()?;
+        let relative_path = diff_paths(file.path.clone(), base_directory).unwrap_or_default();
+
+        let formatted_path = format!(
+            "{:<0width$}",
+            relative_path.to_str().unwrap_or_default().to_string(),
+            width = min_path_length
+        );
+
+        Ok(formatted_path)
+    }
+
+    pub fn human_filesize(file: &FileInfo) -> Result<String> {
+        Ok(format!("{:>12}", bytesize::ByteSize::b(file.size)))
+    }
+
+    pub fn human_mtime(file: &FileInfo) -> Result<String> {
+        let modified_time: DateTime<Utc> = file.filemeta.modified()?.into();
+        Ok(modified_time.format("%Y-%m-%d %H:%M:%S").to_string())
+    }
+
+    pub fn generate_table(raw: Vec<FileInfo>, app_args: &Params) -> Result<Table> {
+        let basepath_length = app_args.get_directory()?.to_str().unwrap_or_default().len();
+        let max_filepath_length = raw
+            .iter()
+            .map(|file| file.path.to_str().unwrap_or_default().len())
+            .max()
+            .unwrap_or_default();
+
+        let min_path_length = if max_filepath_length > basepath_length {
+            max_filepath_length - basepath_length
+        } else {
+            0
+        };
+
+        let progress_style = ProgressStyle::with_template(
+            "[{elapsed_precise}] {bar:40.cyan/blue} {pos:>7}/{len:7} {msg}",
+        )?;
+        let progress_bar = ProgressBar::new(raw.len() as u64);
+        progress_bar.set_style(progress_style);
+        progress_bar.enable_steady_tick(Duration::from_millis(50));
+        progress_bar.set_message("reconciling data");
+
+        let duplicates_table: DashMap<String, Vec<FileInfo>> = DashMap::new();
+        raw.into_par_iter()
+            .progress_with(progress_bar)
+            .with_finish(ProgressFinish::WithMessage(Cow::from("data reconciled")))
+            .map(|file| file.hash())
+            .filter_map(Result::ok)
+            .for_each(|file| {
+                duplicates_table
+                    .entry(file.hash.clone().unwrap_or_default())
+                    .and_modify(|fileset| fileset.push(file.clone()))
+                    .or_insert_with(|| vec![file]);
+            });
+
+        let mut output_table = Table::new();
+        output_table.set_titles(row!["hash", "duplicates"]);
+
+        let progress_style = ProgressStyle::with_template(
+            "[{elapsed_precise}] {bar:40.cyan/blue} {pos:>7}/{len:7} {msg}",
+        )?;
+
+        let progress_bar = ProgressBar::new(duplicates_table.len() as u64);
+        progress_bar.set_style(progress_style);
+        progress_bar.enable_steady_tick(Duration::from_millis(50));
+        progress_bar.set_message("generating output");
+
+        duplicates_table
+            .into_iter()
+            .progress_with(progress_bar)
+            .with_finish(ProgressFinish::WithMessage(Cow::from("output generated")))
+            .for_each(|(hash, group)| {
+                let mut inner_table = Table::new();
+                inner_table.set_format(*format::consts::FORMAT_NO_BORDER_LINE_SEPARATOR);
+                group.iter().for_each(|file| {
+                    inner_table.add_row(row![
+                        Self::human_path(file, app_args, min_path_length)
+                            .unwrap_or_default()
+                            .blue(),
+                        Self::human_filesize(file).unwrap_or_default().red(),
+                        Self::human_mtime(file).unwrap_or_default().yellow()
+                    ]);
+                });
+
+                output_table.add_row(row![hash.green(), inner_table]);
+            });
+
+        Ok(output_table)
+    }
+
+    pub fn print(raw: Vec<FileInfo>, app_args: &Params) -> Result<()> {
+        if raw.is_empty() {
+            println!(
+                "\n\n{}\n",
+                "No duplicates found matching your search criteria.".green()
+            );
+            return Ok(());
+        }
+
+        let output_table = Self::generate_table(raw, app_args)?;
+        output_table.printstd();
+
+        Ok(())
+    }
+}

src/interactive.rs

@@ -0,0 +1,154 @@
+use crate::formatter::Formatter;
+use crate::{fileinfo::FileInfo, params::Params};
+use anyhow::Result;
+use colored::Colorize;
+use dashmap::DashMap;
+use indicatif::{ParallelProgressIterator, ProgressBar, ProgressFinish, ProgressStyle};
+use prettytable::{format, row, Table};
+use rayon::prelude::*;
+use std::{
+    borrow::Cow,
+    io::{self, Write},
+    time::Duration,
+};
+
+pub fn scan_group_confirmation() -> Result<bool> {
+    print!("\nconfirm? [y/N]: ");
+    std::io::stdout().flush()?;
+    let mut user_input = String::new();
+    io::stdin().read_line(&mut user_input)?;
+
+    match user_input.trim() {
+        "Y" | "y" => Ok(true),
+        _ => Ok(false),
+    }
+}
+
+pub fn scan_group_instruction() -> Result<String> {
+    println!("\nEnter the indices of the files you want to delete.");
+    println!("You can enter multiple files using commas to seperate file indices.");
+    println!("example: 1,2");
+    print!("\n> ");
+    std::io::stdout().flush()?;
+    let mut user_input = String::new();
+    io::stdin().read_line(&mut user_input)?;
+
+    Ok(user_input)
+}
+
+pub fn init(result: Vec<FileInfo>, app_args: &Params) -> Result<()> {
+    let basepath_length = app_args.get_directory()?.to_str().unwrap_or_default().len();
+    let max_filepath_length = result
+        .iter()
+        .map(|file| file.path.to_str().unwrap_or_default().len())
+        .max()
+        .unwrap_or_default();
+
+    let min_path_length = if max_filepath_length > basepath_length {
+        max_filepath_length - basepath_length
+    } else {
+        0
+    };
+
+    let progress_style = ProgressStyle::with_template(
+        "[{elapsed_precise}] {bar:40.cyan/blue} {pos:>7}/{len:7} {msg}",
+    )?;
+    let progress_bar = ProgressBar::new(result.len() as u64);
+    progress_bar.set_style(progress_style);
+    progress_bar.enable_steady_tick(Duration::from_millis(50));
+    progress_bar.set_message("reconciling data");
+
+    let duplicates: DashMap<String, Vec<FileInfo>> = DashMap::new();
+    result
+        .into_par_iter()
+        .progress_with(progress_bar)
+        .with_finish(ProgressFinish::WithMessage(Cow::from("data reconciled")))
+        .map(|file| file.hash())
+        .filter_map(Result::ok)
+        .for_each(|file| {
+            duplicates
+                .entry(file.hash.clone().unwrap_or_default())
+                .and_modify(|fileset| fileset.push(file.clone()))
+                .or_insert_with(|| vec![file]);
+        });
+
+    duplicates
+        .clone()
+        .into_iter()
+        .enumerate()
+        .for_each(|(gindex, (_, group))| {
+            let mut itable = Table::new();
+            itable.set_format(*format::consts::FORMAT_NO_BORDER_LINE_SEPARATOR);
+            itable.set_titles(row!["index", "filename", "size", "updated_at"]);
+            group.iter().enumerate().for_each(|(index, file)| {
+                itable.add_row(row![
+                    index,
+                    Formatter::human_path(file, app_args, min_path_length)
+                        .unwrap_or_default()
+                        .blue(),
+                    Formatter::human_filesize(file).unwrap_or_default().red(),
+                    Formatter::human_mtime(file).unwrap_or_default().yellow()
+                ]);
+            });
+
+            process_group_action(&group, gindex, duplicates.len(), itable);
+        });
+
+    Ok(())
+}
+
+pub fn process_group_action(
+    duplicates: &Vec<FileInfo>,
+    dup_index: usize,
+    dup_size: usize,
+    table: Table,
+) {
+    println!("\nDuplicate Set {} of {}\n", dup_index + 1, dup_size);
+    table.printstd();
+    let files_to_delete = scan_group_instruction().unwrap_or_default();
+    let parsed_file_indices = files_to_delete
+        .trim()
+        .split(',')
+        .filter(|element| !element.is_empty())
+        .map(|index| index.parse::<usize>().unwrap_or_default())
+        .collect::<Vec<usize>>();
+
+    if parsed_file_indices
+        .clone()
+        .into_iter()
+        .any(|index| index > (duplicates.len() - 1))
+    {
+        println!("{}", "Err: File Index Out of Bounds!".red());
+        return process_group_action(duplicates, dup_index, dup_size, table);
+    }
+
+    print!("{esc}[2J{esc}[1;1H", esc = 27 as char);
+
+    if parsed_file_indices.is_empty() {
+        return;
+    }
+
+    let files_to_delete = parsed_file_indices
+        .into_iter()
+        .map(|index| duplicates[index].clone());
+
+    println!("\n{}", "The following files will be deleted:".red());
+    files_to_delete
+        .clone()
+        .enumerate()
+        .for_each(|(index, file)| {
+            println!("{}: {}", index.to_string().blue(), file.path.display());
+        });
+
+    match scan_group_confirmation().unwrap() {
+        true => {
+            files_to_delete.into_iter().for_each(|file| {
+                match std::fs::remove_file(file.path.clone()) {
+                    Ok(_) => println!("{}: {}", "DELETED".green(), file.path.display()),
+                    Err(_) => println!("{}: {}", "FAILED".red(), file.path.display()),
+                }
+            });
+        }
+        false => println!("{}", "\nCancelled Delete Operation.".red()),
+    }
+}

src/main.rs

@@ -1,15 +1,27 @@
-#![allow(unused)] // TODO: remove this once TUI is implemented
-mod app;
-mod database;
-mod output;
+mod fileinfo;
+mod formatter;
+mod interactive;
 mod params;
+mod processor;
 mod scanner;
 
 use anyhow::Result;
-use app::App;
 use clap::Parser;
+use formatter::Formatter;
+use params::Params;
+use processor::Processor;
+use scanner::Scanner;
 
-#[tokio::main]
-async fn main() -> Result<()> {
-    App::init(&params::Params::parse())
+fn main() -> Result<()> {
+    let app_args = Params::parse();
+    let scan_results = Scanner::build(&app_args)?.scan()?;
+    let processor = Processor::new(scan_results);
+    let results = processor.sizewise()?.hashwise()?;
+
+    match app_args.interactive {
+        false => { Formatter::print(results.files, &app_args)?; }
+        true => { interactive::init(results.files, &app_args)?; }
+    }
+
+    Ok(())
 }

src/output.rs

@@ -1,165 +0,0 @@
-use std::{collections::HashMap, fs, io};
-use std::io::Write;
-
-use anyhow::Result;
-use chrono::offset::Utc;
-use chrono::DateTime;
-use colored::Colorize;
-use humansize::{format_size, DECIMAL};
-use itertools::Itertools;
-
-use crate::app::file_manager;
-use crate::database::File;
-use crate::params::Params;
-use prettytable::{format, row, Cell, Row, Table};
-
-fn format_path(path: &str, opts: &Params) -> Result<String> {
-    let display_path = path.replace(&opts.get_directory()?, "");
-    let text_vec = display_path.chars().collect::<Vec<_>>();
-
-    let display_range = if text_vec.len() > 32 {
-        text_vec[(display_path.len() - 32)..]
-            .iter()
-            .collect::<String>()
-    } else {
-        display_path
-    };
-
-    Ok(format!("...{:<32}", display_range))
-}
-
-fn file_size(path: &String) -> Result<String> {
-    let mdata = fs::metadata(path)?;
-    let formatted_size = format!("{:>12}", format_size(mdata.len(), DECIMAL));
-    Ok(formatted_size)
-}
-
-fn modified_time(path: &String) -> Result<String> {
-    let mdata = fs::metadata(path)?;
-    let modified_time: DateTime<Utc> = mdata.modified()?.into();
-
-    Ok(modified_time.format("%Y-%m-%d %H:%M:%S").to_string())
-}
-
-fn group_duplicates(duplicates: Vec<File>) -> HashMap<String, Vec<File>> {
-    let mut duplicate_mapper: HashMap<String, Vec<File>> = HashMap::new();
-    duplicates.into_iter().for_each(|file| {
-        duplicate_mapper
-            .entry(file.hash.clone())
-            .and_modify(|value| value.push(file.clone()))
-            .or_insert_with(|| vec![file]);
-    });
-
-    duplicate_mapper
-}
-
-fn print_meta_info(duplicates: &Vec<File>, opts: &Params) {
-    println!("Deduplicator v{}", std::env!("CARGO_PKG_VERSION"));
-}
-
-fn scan_group_instruction() -> Result<String> {
-    println!("\nEnter the indices of the files you want to delete.");
-    println!("You can enter multiple files using commas to seperate file indices.");
-    println!("example: 1,2");
-    print!("\n> ");
-    std::io::stdout().flush()?;
-    let mut user_input = String::new();
-    io::stdin().read_line(&mut user_input)?;
-
-    Ok(user_input)
-}
-
-fn scan_group_confirmation() -> Result<bool> {
-    print!("\nconfirm? [Y/n]: ");
-    std::io::stdout().flush()?;
-    let mut user_input = String::new();
-    io::stdin().read_line(&mut user_input)?;
-
-    match user_input.trim() {
-        "Y" | "y" => Ok(true),
-        _ => Ok(false)
-    }
-}
-
-fn process_group_action(duplicates: &Vec<File>, dup_index: usize, dup_size: usize, table: Table) {
-    println!("\nDuplicate Set {} of {}\n", dup_index + 1, dup_size);
-    table.printstd();
-    let files_to_delete = scan_group_instruction().unwrap_or_default();
-    let parsed_file_indices = files_to_delete
-        .trim()
-        .split(',')
-        .filter(|element| !element.is_empty())
-        .map(|index| index.parse::<usize>().unwrap_or_default())
-        .collect_vec();
-
-    if parsed_file_indices
-        .clone()
-        .into_iter()
-        .any(|index| index > (duplicates.len() - 1))
-    {
-        println!("{}", "Err: File Index Out of Bounds!".red());
-        return process_group_action(duplicates, dup_index, dup_size, table);
-    }
-
-    print!("{esc}[2J{esc}[1;1H", esc = 27 as char);
-
-    if parsed_file_indices.is_empty() { return }
-
-    let files_to_delete = parsed_file_indices
-        .into_iter()
-        .map(|index| duplicates[index].clone());
-
-    println!("\n{}", "The following files will be deleted:".red());
-    files_to_delete.clone().enumerate().for_each(|(index, file)| {
-        println!("{}: {}", index.to_string().blue(), file.path);
-    });
-    
-    match scan_group_confirmation().unwrap() {
-        true => { file_manager::delete_files(files_to_delete.collect_vec()); },
-        false => println!("{}", "\nCancelled Delete Operation.".red())
-    }
-}
-
-pub fn interactive(duplicates: Vec<File>, opts: &Params) {
-    print_meta_info(&duplicates, opts);
-    let grouped_duplicates = group_duplicates(duplicates);
-
-    grouped_duplicates.iter().enumerate().for_each(|(gindex, (hash, group))| {
-        let mut itable = Table::new();
-        itable.set_format(*format::consts::FORMAT_NO_BORDER_LINE_SEPARATOR);
-        itable.set_titles(row!["index", "filename", "size", "updated_at"]);
-        group.iter().enumerate().for_each(|(index, file)| {
-            itable.add_row(row![
-                index,
-                format_path(&file.path, opts).unwrap_or_default().blue(),
-                file_size(&file.path).unwrap_or_default().red(),
-                modified_time(&file.path).unwrap_or_default().yellow()
-            ]);
-        });
-
-        process_group_action(group, gindex, grouped_duplicates.len(), itable);
-    });
-}
-
-pub fn print(duplicates: Vec<File>, opts: &Params) {
-    print_meta_info(&duplicates, opts);
-
-    let mut output_table = Table::new();
-    let grouped_duplicates: HashMap<String, Vec<File>> = group_duplicates(duplicates);
-
-    output_table.set_titles(row!["hash", "duplicates"]);
-    grouped_duplicates.iter().for_each(|(hash, group)| {
-        let mut inner_table = Table::new();
-        inner_table.set_format(*format::consts::FORMAT_NO_BORDER_LINE_SEPARATOR);
-        group.iter().for_each(|file| {
-            inner_table.add_row(row![
-                format_path(&file.path, opts).unwrap_or_default().blue(),
-                file_size(&file.path).unwrap_or_default().red(),
-                modified_time(&file.path).unwrap_or_default().yellow()
-            ]);
-        });
-        output_table.add_row(row![hash.green(), inner_table]);
-    });
-
-    output_table.printstd();
-}

src/params.rs

@@ -1,40 +1,53 @@
 use std::{fs, path::PathBuf};
 
-use anyhow::{anyhow, Result};
-use clap::Parser;
+use anyhow::Result;
+use clap::{Parser, ValueHint};
 
-#[derive(Parser, Debug)]
+#[derive(Parser, Debug, Clone)]
 #[command(author, version, about, long_about = None)]
 pub struct Params {
-    /// Filetypes to deduplicate (default = all)
+    /// Filetypes to deduplicate [default = all]
     #[arg(short, long)]
     pub types: Option<String>,
-    /// Run Deduplicator on dir different from pwd
-    #[arg(long)]
+    /// Run Deduplicator on dir different from pwd (e.g., ~/Pictures )
+    #[arg(value_hint = ValueHint::DirPath, value_name = "scan_dir_path")]
     pub dir: Option<PathBuf>,
-    /// Don't use cache for indexing files (default = false)
-    #[arg(long, short)]
-    pub nocache: bool,
     /// Delete files interactively
     #[arg(long, short)]
-    pub interactive: bool
+    pub interactive: bool,
+    /// Minimum filesize of duplicates to scan (e.g., 100B/1K/2M/3G/4T).
+    #[arg(long, short = 's', default_value = "1b")]
+    pub min_size: Option<String>,
+    /// Max Depth to scan while looking for duplicates
+    #[arg(long, short = 'd')]
+    pub max_depth: Option<usize>,
+    /// Min Depth to scan while looking for duplicates
+    #[arg(long)]
+    pub min_depth: Option<usize>,
+    /// Follow links while scanning directories
+    #[arg(long, short)]
+    pub follow_links: bool,
 }
 
 impl Params {
-    pub fn get_directory(&self) -> Result<String> {
-        let dir_pathbuf: PathBuf = self
-            .dir
-            .clone()
-            .unwrap_or(std::env::current_dir()?)
-            .as_os_str()
-            .into();
-
-        let dir = fs::canonicalize(dir_pathbuf)?
-            .as_os_str()
-            .to_str()
-            .ok_or_else(|| anyhow!("Invalid directory"))?
-            .to_string();
+    pub fn get_min_size(&self) -> Option<u64> {
+        match &self.min_size {
+            Some(msize) => match msize.parse::<bytesize::ByteSize>() {
+                Ok(units) => Some(units.0),
+                Err(_) => None,
+            },
+            None => None,
+        }
+    }
 
+    pub fn get_directory(&self) -> Result<PathBuf> {
+        let current_dir = std::env::current_dir()?;
+        let dir_path = self.dir.as_ref().unwrap_or(&current_dir).as_path();
+        let dir = fs::canonicalize(dir_path)?;
         Ok(dir)
     }
+
+    pub fn get_types(&self) -> Option<String> {
+        self.types.clone()
+    }
 }

src/processor.rs

@@ -0,0 +1,107 @@
+use anyhow::Result;
+use dashmap::DashMap;
+use indicatif::{ParallelProgressIterator, ProgressBar, ProgressStyle, ProgressFinish};
+use rayon::prelude::{IntoParallelIterator, ParallelIterator};
+use std::{time::Duration, borrow::Cow};
+
+use crate::fileinfo::FileInfo;
+
+#[derive(Debug, Clone)]
+pub enum State {
+    Initial,
+    SizeWise,
+    HashWise,
+}
+
+#[derive(Debug, Clone)]
+pub struct Processor {
+    pub files: Vec<FileInfo>,
+    pub state: State,
+}
+
+impl Processor {
+    pub fn new(files: Vec<FileInfo>) -> Self {
+        Self {
+            files,
+            state: State::Initial,
+        }
+    }
+
+    pub fn hashwise(&self) -> Result<Self> {
+        if self.files.is_empty() {
+            return Ok(self.clone());
+        }
+
+        let progress_style = ProgressStyle::with_template("[{elapsed_precise}] {bar:40.cyan/blue} {pos:>7}/{len:7} {msg}")?;
+        let progress_bar = ProgressBar::new(self.files.len() as u64);
+        progress_bar.set_style(progress_style);
+        progress_bar.enable_steady_tick(Duration::from_millis(50));
+        progress_bar.set_message("indexing file hashes");
+
+        let duplicates_table: DashMap<String, Vec<FileInfo>> = DashMap::new();
+        self.files
+            .clone()
+            .into_par_iter()
+            .progress_with(progress_bar)
+            .with_finish(ProgressFinish::WithMessage(Cow::from("indexed files hashes")))
+            .map(|file| file.hash())
+            .filter_map(Result::ok)
+            .for_each(|file| {
+                duplicates_table
+                    .entry(file.hash.clone().unwrap_or_default())
+                    .and_modify(|fileset| fileset.push(file.clone()))
+                    .or_insert_with(|| vec![file]);
+            });
+
+        let files = duplicates_table
+            .into_read_only()
+            .values()
+            .cloned()
+            .filter(|subfiles| subfiles.len() > 1)
+            .flatten()
+            .collect::<Vec<FileInfo>>();
+
+        Ok(Self {
+            files,
+            state: State::HashWise,
+        })
+    }
+
+    pub fn sizewise(&self) -> Result<Self> {
+        if self.files.is_empty() {
+            return Ok(self.clone());
+        }
+
+        let progress_style = ProgressStyle::with_template("[{elapsed_precise}] {bar:40.cyan/blue} {pos:>7}/{len:7} {msg}")?;
+        let progress_bar = ProgressBar::new(self.files.len() as u64);
+        progress_bar.set_style(progress_style);
+        progress_bar.enable_steady_tick(Duration::from_millis(50));
+        progress_bar.set_message("indexing file sizes");
+
+        let duplicates_table: DashMap<u64, Vec<FileInfo>> = DashMap::new();
+        self.files
+            .clone()
+            .into_par_iter()
+            .progress_with(progress_bar)
+            .with_finish(ProgressFinish::WithMessage(Cow::from("indexed files sizes")))
+            .for_each(|file| {
+                duplicates_table
+                    .entry(file.size)
+                    .and_modify(|fileset| fileset.push(file.clone()))
+                    .or_insert_with(|| vec![file]);
+            });
+
+        let files = duplicates_table
+            .into_read_only()
+            .values()
+            .cloned()
+            .filter(|subfiles| subfiles.len() > 1)
+            .flatten()
+            .collect::<Vec<FileInfo>>();
+
+        Ok(Self {
+            files,
+            state: State::SizeWise,
+        })
+    }
+}

src/scanner.rs

@@ -1,87 +1,173 @@
-use std::{fs, path::PathBuf};
-use indicatif::{HumanDuration, MultiProgress, ProgressBar, ProgressStyle, ParallelProgressIterator};
+#![allow(unused)]
+use crate::{fileinfo::FileInfo, params::Params};
 use anyhow::Result;
-use fxhash::hash32 as hasher;
-use glob::glob;
-use itertools::Itertools;
-use rayon::prelude::*;
+use indicatif::{ProgressBar, ProgressStyle};
+use std::{fs, path::PathBuf, time::Duration};
 
-use crate::{
-    database::{self, File},
-    params::Params,
-};
+use globwalk::{GlobWalker, GlobWalkerBuilder};
 
-pub fn duplicates(app_opts: &Params, connection: &sqlite::Connection) -> Result<Vec<File>> {
-    let scan_results = scan(app_opts, connection)?;
-    let base_path = app_opts.get_directory()?;
-
-    index_files(scan_results, connection)?;
-    database::duplicate_hashes(connection, &base_path)
+#[derive(Debug, Clone)]
+pub struct Scanner {
+    pub directory: Option<PathBuf>,
+    pub filetypes: Option<String>,
+    pub min_depth: Option<usize>,
+    pub max_depth: Option<usize>,
+    pub min_size: Option<u64>,
+    pub follow_links: bool,
 }
 
-fn get_glob_patterns(opts: &Params, directory: &str) -> Vec<PathBuf> {
-    opts.types
-        .clone()
-        .unwrap_or_else(|| String::from("*"))
-        .split(',')
-        .map(|filetype| format!("*.{}", filetype))
-        .map(|filetype| {
-            vec![directory.to_owned(), String::from("**"), filetype]
-                .iter()
-                .collect()
+impl Scanner {
+    pub fn new() -> Self {
+        Self {
+            directory: None,
+            filetypes: None,
+            min_depth: None,
+            max_depth: None,
+            min_size: None,
+            follow_links: true,
+        }
+    }
+
+    pub fn build(app_args: &Params) -> Result<Self> {
+        let scan_directory = app_args.get_directory()?;
+        Ok(Scanner::new())
+            .map(|scanner| scanner.directory(scan_directory))
+            .map(|scanner| match app_args.get_min_size() {
+                Some(min_size) => scanner.min_size(min_size),
+                None => scanner,
+            })
+            .map(|scanner| match app_args.get_types() {
+                Some(ftypes) => scanner.filetypes(ftypes),
+                None => scanner,
+            })
+            .map(|scanner| match app_args.min_depth {
+                Some(min_depth) => scanner.min_depth(min_depth),
+                None => scanner,
+            })
+            .map(|scanner| match app_args.max_depth {
+                Some(max_depth) => scanner.max_depth(max_depth),
+                None => scanner,
+            })
+    }
+
+    pub fn min_size(&self, min_size: u64) -> Self {
+        Self {
+            min_size: Some(min_size),
+            ..self.clone()
+        }
+    }
+
+    pub fn min_depth(&self, min_depth: usize) -> Self {
+        Self {
+            min_depth: Some(min_depth),
+            ..self.clone()
+        }
+    }
+
+    pub fn max_depth(&self, max_depth: usize) -> Self {
+        Self {
+            max_depth: Some(max_depth),
+            ..self.clone()
+        }
+    }
+
+    pub fn directory(&self, dir: PathBuf) -> Self {
+        Self {
+            directory: Some(dir),
+            ..self.clone()
+        }
+    }
+
+    pub fn filetypes(&self, patterns: String) -> Self {
+        Self {
+            filetypes: Some(patterns),
+            ..self.clone()
+        }
+    }
+
+    pub fn ignore_links(&self) -> Self {
+        Self {
+            follow_links: false,
+            ..self.clone()
+        }
+    }
+
+    pub fn follow_links(&self) -> Self {
+        Self {
+            follow_links: true,
+            ..self.clone()
+        }
+    }
+
+    fn scan_patterns(&self) -> Result<String> {
+        Ok(match self.filetypes.clone() {
+            Some(ftypes) => format!("**/*{{{ftypes}}}"),
+            None => "**/*".to_string(),
         })
-        .collect()
-}
-
-fn is_indexed_file(path: impl Into<String>, indexed: &[File]) -> bool {
-    indexed
-        .iter()
-        .map(|file| file.path.clone())
-        .contains(&path.into())
-}
-
-fn scan(app_opts: &Params, connection: &sqlite::Connection) -> Result<Vec<String>> {
-    let directory = app_opts.get_directory()?;
-    let glob_patterns: Vec<PathBuf> = get_glob_patterns(app_opts, &directory);
-    let indexed_paths = database::indexed_paths(connection)?;
-    let files: Vec<String> = glob_patterns
-        .par_iter()
-        .progress_with_style(ProgressStyle::with_template("{spinner:.green} [scanning files] [{wide_bar:.cyan/blue}] {pos}/{len} files").unwrap())
-        .filter_map(|glob_pattern| glob(glob_pattern.as_os_str().to_str()?).ok())
-        .flat_map(|file_vec| {
-            file_vec
-                .filter_map(|x| Some(x.ok()?.as_os_str().to_str()?.to_string()))
-                .filter(|fpath| !is_indexed_file(fpath, &indexed_paths))
-                .filter(|glob_result| {
-                    fs::metadata(glob_result)
-                        .map(|f| f.is_file())
-                        .unwrap_or(false)
-                })
-                .collect::<Vec<String>>()
-        })
-        .collect();
-
-    Ok(files)
-}
-
-fn index_files(files: Vec<String>, connection: &sqlite::Connection) -> Result<()> {
-    let hashed: Vec<File> = files
-        .into_par_iter()
-        .progress_with_style(ProgressStyle::with_template("{spinner:.green} [indexing files] [{wide_bar:.cyan/blue}] {pos}/{len} files").unwrap())
-        .filter_map(|file| {
-            let hash = hash_file(&file).ok()?;
-            Some(database::File { path: file, hash })
-        })
-        .collect();
-
-    hashed
-        .iter()
-        .try_for_each(|file| database::put(file, connection))
-}
-
-pub fn hash_file(filepath: &str) -> Result<String> {
-    let file = fs::read(filepath)?;
-    let hash = hasher(&*file).to_string();
-
-    Ok(hash)
+    }
+
+    fn scan_dir(&self) -> Result<PathBuf> {
+        let scan_dir = match self.directory.clone() {
+            Some(path) => path,
+            None => std::env::current_dir()?,
+        };
+
+        Ok(fs::canonicalize(scan_dir)?)
+    }
+
+    fn attach_link_opts(&self, walker: GlobWalkerBuilder) -> Result<GlobWalkerBuilder> {
+        Ok(walker.follow_links(self.follow_links))
+    }
+
+    fn attach_walker_min_depth(&self, walker: GlobWalkerBuilder) -> Result<GlobWalkerBuilder> {
+        match self.min_depth {
+            Some(min_depth) => Ok(walker.min_depth(min_depth)),
+            None => Ok(walker),
+        }
+    }
+
+    fn attach_walker_max_depth(&self, walker: GlobWalkerBuilder) -> Result<GlobWalkerBuilder> {
+        match self.max_depth {
+            Some(max_depth) => Ok(walker.max_depth(max_depth)),
+            None => Ok(walker),
+        }
+    }
+    fn build_walker(&self) -> Result<GlobWalker> {
+        let walker = Ok(GlobWalkerBuilder::from_patterns(
+            self.scan_dir()?,
+            &[self.scan_patterns()?],
+        ))
+        .and_then(|walker| self.attach_walker_min_depth(walker))
+        .and_then(|walker| self.attach_walker_max_depth(walker))
+        .and_then(|walker| self.attach_link_opts(walker))?;
+
+        Ok(walker.build()?)
+    }
+
+    pub fn scan(&self) -> Result<Vec<FileInfo>> {
+        let progress_style = ProgressStyle::with_template("[{elapsed_precise}] {pos:>7} {msg}")?;
+        let progress_bar = ProgressBar::new_spinner();
+        progress_bar.set_style(progress_style);
+        progress_bar.enable_steady_tick(Duration::from_millis(50));
+        progress_bar.set_message("paths mapped");
+        let min_size = self.min_size.unwrap_or_default();
+
+        let results = self
+            .build_walker()?
+            .filter_map(Result::ok)
+            .map(|entity| entity.into_path())
+            .map(|path| {
+                progress_bar.inc(1);
+                path
+            })
+            .filter(|path| path.is_file())
+            .map(FileInfo::new)
+            .filter_map(Result::ok)
+            .filter(|file| file.size > min_size)
+            .collect::<Vec<FileInfo>>();
+
+        progress_bar.finish_with_message("paths mapped");
+
+        Ok(results)
+    }
 }