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name: Rust
on: [pull_request]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v1
- name: Build
run: cargo build --verbose
- name: Run tests
run: cargo test --verbose

1
.gitignore vendored
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*.lock
target/
Results.txt
.DS_Store

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.travis.yml Normal file
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language: rust
rust:
- stable
script:
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- cargo test --verbose --all
- cargo clean
- cargo build --release --all
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LICENSE
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@ -1,841 +1,21 @@
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View file

@ -1,3 +1,8 @@
### Linux Build Status
[![Build Status](https://travis-ci.org/darakian/ddh.svg?branch=master)](https://travis-ci.org/darakian/ddh)
### Windows Build Status
[![Build status](https://ci.appveyor.com/api/projects/status/wv7tcfn0a7grjnv6?svg=true)](https://ci.appveyor.com/project/darakian/ddh)
# The **D**irectory **D**ifferential **h**Tool
DDH traverses input directories and their subdirectories. It also hashes files as needed and reports findings.
@ -11,7 +16,7 @@ This tool is called DDH for two very good reasons.
DDH is usable both as a library and as a stand alone CLI tool and aims to be simple to use in both cases.
## Library example
```rust
```
let (files, errors): (Vec<Fileinfo>, Vec<(_, _)>) = ddh::deduplicate_dirs(dirs);
let (shared, unique): (Vec<&Fileinfo>, Vec<&Fileinfo>) = files
.par_iter()
@ -32,31 +37,25 @@ DDH supports both a `standard` output for human comprehension and a parsable `js
Directory Difference hTool
Jon Moroney jmoroney@hawaii.edu
Compare and contrast directories.
Example invocation: ddh /home/jon/downloads /home/jon/documents -f duplicates
Example pipe: ddh ~/Downloads/ -o no -v all -f json | someJsonParser.bin
Example invocation: ddh -v duplicates -d /home/jon/downloads /home/jon/documents
Example pipe: ddh -o no -v all -f json -d ~/Downloads/ | someJsonParser.bin
USAGE:
ddh [OPTIONS] <Directories>...
Usage: ddh [OPTIONS]
FLAGS:
-h, --help Prints help information
-V, --version Prints version information
Options:
-m, --minimum [<MIN_SIZE>]
Minimum file size in bytes to consider [default: 0]
-b, --blocksize [<BLOCKSIZE>]
Set the display blocksize to Bytes, Kilobytes, Megabytes or Gigabytes [default: K] [possible values: B, K, M, G]
-v, --verbosity [<VERBOSITY>]
Set verbosity for printed output [default: quiet] [possible values: quiet, duplicates, all]
-o, --output [<OUTPUT>]
Set file to save all output. Use 'no' for no file output [default: Results.txt]
-f, --format [<FMT>]
Set output format [default: standard] [possible values: standard, json]
-i, --ignore <IGNORE_DIRS>
Directories to ignore (comma separated list)
-d, --directories <DIRECTORIES>...
Directories to parse
-h, --help
Print help information (use `--help` for more detail)
-V, --version
Print version information
OPTIONS:
-b, --blocksize <Blocksize> Sets the display blocksize to Bytes, Kilobytes, Megabytes or Gigabytes. Default is
Kilobytes. [possible values: B, K, M, G]
-f, --format <Format> Sets output format. [possible values: standard, json, off]
-o, --output <Output> Sets file to save all output. Use 'no' for no file output.
-v, --verbosity <Verbosity> Sets verbosity for printed output. [possible values: quiet, duplicates, all]
ARGS:
<Directories>... Directories to parse
```
## How Does DDH Work?
DDH works by hashing files to determine their uniqueness and, as such, depends heavily on disk speeds for performance. The algorithmic choices in use are discussed [here](https://darakian.github.io/2018/04/02/how-many-bytes-does-it-take.html).

33
appveyor.yml Normal file
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@ -0,0 +1,33 @@
version: 9.6.{build}
image: Visual Studio 2017
install:
- cmd: >-
appveyor-retry appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
rustup-init.exe -y
set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
rustc -V
cargo -V
build_script:
- cmd: cargo build --release
after_test:
- cmd: >-
cargo build --verbose
cargo test
artifacts:
- path: target/release/ddh.exe
name: ddh
deploy:
- provider: GitHub
tag: win64-$(appveyor_build_version)
description: DDH windows build
auth_token:
secure: WFr7LYW7Ios3cmmcG1YzM/etQ/xx1yGGlv37J3F9OhVcka5BdZCcTSdSo5MP08/k
draft: false
prerelease: false
on:
branch: release

View file

@ -1,234 +0,0 @@
use serde::ser::{Serialize, SerializeStruct, Serializer};
use siphasher::sip128::Hasher128;
use std::cmp::Ordering;
use std::fs::{self, Metadata};
use std::hash::Hasher;
use std::io::Read;
use std::path::PathBuf;
const BLOCK_SIZE: usize = 4096;
#[derive(PartialEq)]
pub enum HashMode {
Full,
Partial,
}
/// Serializable struct containing entries for a specific file. These structs will identify individual files as a collection of paths and associated hash and length data.
#[derive(Debug)]
pub struct Fileinfo {
full_hash: Option<u128>,
partial_hash: Option<u128>,
metadata: Metadata,
pub(crate) file_paths: Vec<PathBuf>,
}
impl Fileinfo {
/// Creates a new Fileinfo collection struct.
///
/// # Examples
/// ```no_run
/// use std::path::Path;
/// use ddh::fileinfo::Fileinfo;
/// use std::fs;
///
/// fn main() -> std::io::Result<()> {
/// Fileinfo::new(
/// None,
/// None,
/// fs::metadata("./foo/bar.txt")?,
/// Path::new("./foo/bar.txt").to_path_buf()
/// );
/// Ok(())
/// }
/// ```
pub fn new(full: Option<u128>, partial: Option<u128>, meta: Metadata, path: PathBuf) -> Self {
Fileinfo {
full_hash: full,
partial_hash: partial,
metadata: meta,
file_paths: vec![path],
}
}
/// Gets the length of the files in the current collection.
///
/// # Examples
/// ```no_run
/// use std::path::Path;
/// use ddh::fileinfo::Fileinfo;
/// use std::fs;
///
/// fn main() -> std::io::Result<()> {
/// let fi = Fileinfo::new(None, None, fs::metadata("./foo/bar.txt")?, Path::new("./foo/bar.txt").to_path_buf());
/// let len = fi.get_length();
/// assert_eq!(3, len);
/// Ok(())
/// }
/// ```
pub fn get_length(&self) -> u64 {
self.metadata.len()
}
/// Gets the hash of the full file if available.
///
/// # Examples
/// ```no_run
/// use std::path::Path;
/// use ddh::fileinfo::Fileinfo;
/// use std::fs;
///
/// fn main() -> std::io::Result<()> {
/// let fi = Fileinfo::new(Some(123), None, fs::metadata("./foo/bar.txt")?, Path::new("./foo/bar.txt").to_path_buf());
/// let f_hash = fi.get_full_hash();
/// assert_eq!(Some(123), f_hash);
/// Ok(())
/// }
/// ```
pub fn get_full_hash(&self) -> Option<u128> {
self.full_hash
}
pub(crate) fn set_full_hash(&mut self, hash: Option<u128>) {
self.full_hash = hash
}
/// Gets the hash of the partially read file if available.
///
/// # Examples
/// ```no_run
/// use std::path::Path;
/// use ddh::fileinfo::Fileinfo;
/// use std::fs;
///
/// fn main() -> std::io::Result<()> {
/// let fi = Fileinfo::new(None, Some(123), fs::metadata("./foo/bar.txt")?, Path::new("./foo/bar.txt").to_path_buf());
/// let p_hash = fi.get_partial_hash();
/// assert_eq!(Some(123), p_hash);
/// Ok(())
/// }
/// ```
pub fn get_partial_hash(&self) -> Option<u128> {
self.partial_hash
}
pub(crate) fn set_partial_hash(&mut self, hash: Option<u128>) {
self.partial_hash = hash
}
/// Gets a candidate name. This will be the name of the first file inserted into the collection and so can vary.
///
/// # Examples
/// ```no_run
/// use std::path::Path;
/// use ddh::fileinfo::Fileinfo;
/// use std::fs;
///
/// fn main() -> std::io::Result<()> {
/// let fi = Fileinfo::new(None, None, fs::metadata("./foo/bar.txt")?, Path::new("./foo/bar.txt").to_path_buf());
/// let some_name = fi.get_candidate_name();
/// assert_eq!("bar.txt", some_name);
/// Ok(())
/// }
/// ```
pub fn get_candidate_name(&self) -> &str {
self.file_paths
.get(0)
.unwrap()
.to_str()
.unwrap()
.rsplit('/')
.next()
.unwrap()
}
/// Gets all paths in the current collection. This can be used to get the names of each file with the string `rsplit("/")` method.
///
/// # Examples
/// ```no_run
/// use std::path::Path;
/// use ddh::fileinfo::Fileinfo;
/// use std::fs;
///
/// fn main() -> std::io::Result<()> {
/// let fi = Fileinfo::new(None, None, fs::metadata("./foo/bar.txt")?, Path::new("./foo/bar.txt").to_path_buf());
/// let all_files = fi.get_paths();
/// assert_eq!(&vec![Path::new("./foo/bar.txt").to_path_buf()],
/// all_files);
/// Ok(())
/// }
/// ```
pub fn get_paths(&self) -> &Vec<PathBuf> {
&self.file_paths
}
pub fn generate_hash(&mut self, mode: HashMode) -> Option<u128> {
let mut hasher = siphasher::sip128::SipHasher::new();
match fs::File::open(
self.file_paths
.get(0)
.expect("Cannot read file path from struct"),
) {
Ok(mut f) => {
/* We want a read call to be "large" for two reasons
1) Force filesystem read ahead behavior
2) Fewer system calls for a given file.
Currently 16KB */
let mut hash_buffer = [0; BLOCK_SIZE * 4];
loop {
match f.read(&mut hash_buffer) {
Ok(n) if n > 0 => hasher.write(&hash_buffer),
Ok(n) if n == 0 => break,
Err(_e) => return None,
_ => panic!("Negative length read in hashing"),
}
if mode == HashMode::Partial {
return Some(hasher.finish128().into());
}
}
Some(hasher.finish128().into())
}
Err(_e) => None,
}
}
}
impl Serialize for Fileinfo {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let mut state = serializer.serialize_struct("Fileinfo", 4)?;
state.serialize_field("partial_hash", &self.partial_hash)?;
state.serialize_field("full_hash", &self.full_hash)?;
state.serialize_field("file_length", &self.get_length())?;
state.serialize_field("file_paths", &self.file_paths)?;
state.end()
}
}
impl PartialEq for Fileinfo {
fn eq(&self, other: &Fileinfo) -> bool {
(self.get_length() == other.get_length())
&& (self.partial_hash == other.partial_hash)
&& (self.full_hash == other.full_hash)
}
}
impl Eq for Fileinfo {}
impl PartialOrd for Fileinfo {
fn partial_cmp(&self, other: &Fileinfo) -> Option<Ordering> {
if self.full_hash.is_some() && other.full_hash.is_some() {
Some(self.full_hash.cmp(&other.full_hash))
} else if self.partial_hash.is_some() && other.partial_hash.is_some() {
Some(self.partial_hash.cmp(&other.partial_hash))
} else {
Some(self.get_length().cmp(&other.get_length()))
}
}
}
impl Ord for Fileinfo {
fn cmp(&self, other: &Fileinfo) -> Ordering {
if self.full_hash.is_some() && other.full_hash.is_some() {
self.full_hash.cmp(&other.full_hash)
} else if self.partial_hash.is_some() && other.partial_hash.is_some() {
self.partial_hash.cmp(&other.partial_hash)
} else {
self.get_length().cmp(&other.get_length())
}
}
}

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@ -2,186 +2,299 @@
//!
//! `ddh` is a collection of functions and structs to aid in analysing filesystem directories.
pub mod fileinfo;
use fileinfo::{Fileinfo, HashMode};
use nohash_hasher::IntMap;
use rayon::prelude::*;
use std::collections::hash_map::{Entry, HashMap};
use std::hash::{Hasher};
use std::fs::{self, DirEntry};
use std::path::{Path, PathBuf};
use std::sync::mpsc::{channel, Sender};
use std::io::{Read, BufReader};
use std::path::{PathBuf, Path};
use std::cmp::Ordering;
use serde_derive::{Serialize, Deserialize};
use siphasher::sip128::Hasher128;
use rayon::prelude::*;
use std::sync::mpsc::{Sender, channel};
use std::collections::hash_map::{HashMap, Entry};
use std::io::{Error, ErrorKind};
use nohash_hasher::IntMap;
enum ChannelPackage {
#[derive(PartialEq)]
enum HashMode{
Full,
Partial
}
enum ChannelPackage{
Success(Fileinfo),
Fail(PathBuf, std::io::Error),
}
/// Serializable struct containing entries for a specific file.
#[derive(Debug, Serialize, Deserialize)]
pub struct Fileinfo{
full_hash: Option<u128>,
partial_hash: Option<u128>,
file_length: u64,
file_paths: Vec<PathBuf>,
}
impl Fileinfo{
pub fn new(hash: Option<u128>, partial_hash: Option<u128>, length: u64, path: PathBuf) -> Self{
Fileinfo{full_hash: hash, partial_hash: partial_hash, file_length: length, file_paths: vec![path]}
}
pub fn get_length(&self) -> u64{
self.file_length
}
pub fn get_full_hash(&self) -> Option<u128>{
self.full_hash
}
fn set_full_hash(&mut self, hash: Option<u128>) -> (){
self.full_hash = hash
}
fn set_partial_hash(&mut self, hash: Option<u128>) -> (){
self.partial_hash = hash
}
pub fn get_partial_hash(&self) -> Option<u128>{
self.partial_hash
}
pub fn get_candidate_name(&self) -> &str{
self.file_paths
.iter()
.next()
.unwrap()
.to_str()
.unwrap()
.rsplit("/")
.next()
.unwrap()
}
pub fn get_paths(&self) -> &Vec<PathBuf>{
return &self.file_paths
}
fn generate_hash(&mut self, mode: HashMode) -> Option<u128>{
let mut hasher = siphasher::sip128::SipHasher::new();
match fs::File::open(
self.file_paths
.iter()
.next()
.expect("Cannot read file path from struct")
) {
Ok(f) => {
let mut buffer_reader = BufReader::new(f);
let mut hash_buffer = [0;4096];
loop {
match buffer_reader.read(&mut hash_buffer) {
Ok(n) if n>0 => hasher.write(&hash_buffer[0..]),
Ok(n) if n==0 => break,
Err(_e) => {
return None
},
_ => panic!("Negative length read in hashing"),
}
if mode == HashMode::Partial{
return Some(hasher.finish128().into());
}
}
return Some(hasher.finish128().into());
}
Err(_e) => {
return None
}
}
}
}
impl PartialEq for Fileinfo{
fn eq(&self, other: &Fileinfo) -> bool {
(self.file_length==other.file_length)&&
(self.partial_hash==other.partial_hash)&&
(self.full_hash==other.full_hash)
}
}
impl Eq for Fileinfo{}
impl PartialOrd for Fileinfo{
fn partial_cmp(&self, other: &Fileinfo) -> Option<Ordering>{
if self.full_hash.is_some() && other.full_hash.is_some(){
Some(self.full_hash.cmp(&other.full_hash))
} else if self.partial_hash.is_some() && other.partial_hash.is_some(){
Some(self.partial_hash.cmp(&other.partial_hash))
} else {
Some(self.file_length.cmp(&other.file_length))
}
}
}
impl Ord for Fileinfo{
fn cmp(&self, other: &Fileinfo) -> Ordering {
if self.full_hash.is_some() && other.full_hash.is_some(){
self.full_hash.cmp(&other.full_hash)
} else if self.partial_hash.is_some() && other.partial_hash.is_some(){
self.partial_hash.cmp(&other.partial_hash)
} else {
self.file_length.cmp(&other.file_length)
}
}
}
/// Constructs a list of unique files from a list of directories.
///
/// # Examples
/// ```no_run
/// let search_dirs = vec!["/home/jon", "/home/doe"];
/// let ignore_dirs = vec!["/home/jon/.git", "/home/doe/scratch"];
/// let min_size = 1024;
/// let (files, errors) = ddh::deduplicate_dirs(search_dirs, ignore_dirs, min_size);
/// ```
pub fn deduplicate_dirs<P: AsRef<Path> + Sync>(
search_dirs: Vec<P>,
ignore_dirs: Vec<P>,
min_size: u64) -> (Vec<Fileinfo>, Vec<(PathBuf, std::io::Error)>) {
/// let directories = vec!["/home/jon", "/home/doe"];
/// let (files, errors) = ddh::deduplicate_dirs(directories);
/// ```
pub fn deduplicate_dirs(search_dirs: Vec<&str>) -> (Vec<Fileinfo>, Vec<(PathBuf, std::io::Error)>){
let (sender, receiver) = channel();
let ignore_paths = ignore_dirs.iter().map(|x| x.as_ref().canonicalize().unwrap()).collect();
search_dirs
.par_iter()
.for_each_with(sender, |s, search_dir| {
traverse_and_spawn(search_dir.as_ref(), &ignore_paths, s.clone(), min_size);
});
search_dirs.par_iter().for_each_with(sender, |s, search_dir| {
traverse_and_spawn(Path::new(&search_dir), s.clone());
});
let mut files_of_lengths: IntMap<u64, Vec<Fileinfo>> = IntMap::default();
let mut errors = Vec::new();
receiver.iter().for_each(|pkg| match pkg {
ChannelPackage::Success(entry) => match files_of_lengths.entry(entry.get_length()) {
Entry::Vacant(e) => {
e.insert(vec![entry]);
}
Entry::Occupied(mut e) => {
e.get_mut().push(entry);
}
},
ChannelPackage::Fail(entry, error) => {
errors.push((entry, error));
for pkg in receiver.iter(){
match pkg{
ChannelPackage::Success(entry) => {
match files_of_lengths.entry(entry.get_length()) {
Entry::Vacant(e) => { e.insert(vec![entry]); },
Entry::Occupied(mut e) => { e.get_mut().push(entry); }
}
},
ChannelPackage::Fail(entry, error) => {
errors.push((entry, error));
},
}
});
let complete_files: Vec<Fileinfo> = files_of_lengths
.into_par_iter()
}
let complete_files: Vec<Fileinfo> = files_of_lengths.into_par_iter()
.map(|x| differentiate_and_consolidate(x.0, x.1))
.flatten()
.collect();
(complete_files, errors)
}
fn traverse_and_spawn(current_path: impl AsRef<Path>, ignore_dirs: &Vec<PathBuf>, sender: Sender<ChannelPackage>, min_size: u64) {
if current_path.as_ref().canonicalize().is_ok() && ignore_dirs.iter().any(|x| current_path.as_ref().canonicalize().unwrap().starts_with(x)){
return;
}
let current_path_metadata = match fs::symlink_metadata(&current_path) {
Err(e) => {
sender
.send(ChannelPackage::Fail(current_path.as_ref().to_path_buf(), e))
.expect("Error sending new ChannelPackage::Fail");
return;
}
fn traverse_and_spawn(current_path: &Path, sender: Sender<ChannelPackage>) -> (){
let current_path_metadata = match fs::metadata(current_path) {
Err(e) =>{
sender.send(
ChannelPackage::Fail(current_path.to_path_buf(), e)
).expect("Error sending new ChannelPackage::Fail");
return
},
Ok(meta) => meta,
};
let current_path = match fs::canonicalize(&current_path) {
Err(e) => {
sender
.send(ChannelPackage::Fail(current_path.as_ref().to_path_buf(), e))
.expect("Error sending new ChannelPackage::Fail");
return;
}
Ok(canonical_path) => canonical_path,
};
match current_path_metadata {
meta if meta.is_file() && meta.len() >= min_size => {
sender
.send(ChannelPackage::Success(Fileinfo::new(
None,
None,
meta,
current_path,
)))
.expect("Error sending new ChannelPackage::Success");
}
meta if meta.is_dir() => match fs::read_dir(&current_path) {
Ok(read_dir_results) => {
let good_entries: Vec<_> = read_dir_results
if current_path_metadata.file_type().is_symlink(){
sender.send(
ChannelPackage::Fail(current_path.to_path_buf(), Error::new(ErrorKind::Other, "Path is symlink"))
).expect("Error sending new ChannelPackage::Fail");
return
}
if current_path_metadata.file_type().is_file(){
sender.send(ChannelPackage::Success(
Fileinfo::new(
None,
None,
current_path.metadata().expect("Error reading path length").len(),
current_path.to_path_buf()
))
).expect("Error sending new ChannelPackage::Success");
return
}
if current_path_metadata.file_type().is_dir(){
match fs::read_dir(current_path) {
Ok(read_dir_results) => {
let good_entries: Vec<_> = read_dir_results
.filter(|x| x.is_ok())
.map(|x| x.unwrap())
.collect();
let (files, dirs): (Vec<&DirEntry>, Vec<&DirEntry>) =
good_entries.par_iter().partition(|&x| {
x.file_type()
.expect("Error reading DirEntry file type")
.is_file()
});
files.par_iter().for_each_with(sender.clone(), |sender, x| {
traverse_and_spawn(&x.path(), ignore_dirs, sender.clone(), min_size)
});
dirs.into_par_iter().for_each_with(sender, |sender, x| {
traverse_and_spawn(x.path().as_path(), ignore_dirs, sender.clone(), min_size);
})
let (files, dirs): (Vec<&DirEntry>, Vec<&DirEntry>) = good_entries.par_iter().partition(|&x|
x.path()
.as_path()
.symlink_metadata()
.expect("Error reading Symlink Metadata")
.file_type()
.is_file()
);
files.par_iter().for_each_with(sender.clone(), |sender, x|
sender.send(ChannelPackage::Success(
Fileinfo::new(
None,
None,
x.metadata().expect("Error reading path length").len(),
x.path()))
).expect("Error sending new ChannelPackage::Success")
);
dirs.into_par_iter()
.for_each_with(sender, |sender, x| {
traverse_and_spawn(x.path().as_path(), sender.clone());
})
},
Err(e) => {
sender.send(
ChannelPackage::Fail(current_path.to_path_buf(), e)
).expect("Error sending new ChannelPackage::Fail");
},
}
Err(e) => {
sender
.send(ChannelPackage::Fail(current_path, e))
.expect("Error sending new ChannelPackage::Fail");
}
},
_ => { /*Symlinks not yet handled*/ }
}
} else {}
}
fn differentiate_and_consolidate(file_length: u64, mut files: Vec<Fileinfo>) -> Vec<Fileinfo> {
if file_length == 0 || files.is_empty() {
return files;
fn differentiate_and_consolidate(file_length: u64, mut files: Vec<Fileinfo>) -> Vec<Fileinfo>{
if file_length==0{
return files
}
match files.len() {
if files.len()<=0{
panic!("Invalid length vector");
}
match files.len(){
1 => return files,
n if n > 1 => {
n if n>1 => {
files.par_iter_mut().for_each(|file_ref| {
let hash = file_ref.generate_hash(HashMode::Partial);
file_ref.set_partial_hash(hash);
});
if file_length <= 4096 {
files.par_iter_mut().for_each(|x| {
x.set_full_hash(x.get_partial_hash());
if file_length<=4096{
files.par_iter_mut().for_each(|x|{
x.set_full_hash(x.get_partial_hash()) ;
});
return dedupe(files);
return dedupe(files)
}
let mut partial_hashes: HashMap<u128, u64> = HashMap::new();
for file in files.iter(){
match partial_hashes.entry(file.get_partial_hash().unwrap()){
Entry::Vacant(e) => { e.insert(0); },
Entry::Occupied(mut e) => {*e.get_mut()+=1;}
}
}
let mut partial_hashes: HashMap<Option<u128>, u64> = HashMap::new();
files
.iter()
.for_each(|f| match partial_hashes.entry(f.get_partial_hash()) {
Entry::Vacant(e) => {
e.insert(0);
}
Entry::Occupied(mut e) => {
*e.get_mut() += 1;
}
});
let dedupe_hashes: Vec<_> = partial_hashes
.into_iter()
.filter(|x| x.1 > 0)
.filter(|x| x.1>0)
.map(|y| y.0)
.collect();
files.par_iter_mut().for_each(|x| {
if dedupe_hashes.contains(&x.get_partial_hash()) {
files.par_iter_mut().for_each(|x|
if dedupe_hashes.contains(&x.get_partial_hash().unwrap()){
let hash = x.generate_hash(HashMode::Full);
x.set_full_hash(hash);
}
});
}
_ => {
panic!("Somehow a vector of negative length was created. Please report this as a bug");
}
);
},
_ => {panic!("Somehow a vector of negative length was created. Please report this as a bug");}
}
dedupe(files)
}
fn dedupe(mut files: Vec<Fileinfo>) -> Vec<Fileinfo> {
fn dedupe(mut files: Vec<Fileinfo>) -> Vec<Fileinfo>{
let mut cache: HashMap<(Option<u128>, Option<u128>), &mut Fileinfo> = HashMap::new();
files.iter_mut().for_each(|file| {
match cache.entry((file.get_partial_hash(), file.get_full_hash())) {
Entry::Vacant(e) => {
e.insert(file);
}
Entry::Occupied(mut e) => {
e.get_mut().file_paths.append(&mut file.file_paths);
}
}
});
files.retain(|x| !x.get_paths().is_empty());
for file in files.iter_mut(){
match cache.entry((file.get_partial_hash(), file.get_full_hash())){
Entry::Vacant(e) => {
e.insert(file);
},
Entry::Occupied(mut e) => {
e.get_mut()
.file_paths
.append(&mut file.file_paths);
}
}
}
files.retain(|x| x.get_paths().len()>0);
files
}

View file

@ -1,297 +1,199 @@
use clap::{Parser, ValueEnum};
use ddh::fileinfo::Fileinfo;
use rayon::prelude::*;
use std::io::{stdin};
use std::fs::{self};
use std::io::prelude::*;
use std::io::stdin;
use std::path::PathBuf;
use clap::{Arg, App};
use rayon::prelude::*;
use ddh::{Fileinfo};
use std::path::{PathBuf};
#[derive(Parser)]
#[command(author, version, about, long_about=DDH_ABOUT)]
struct Args {
/// Minimum file size in bytes to consider
#[arg(short, long("minimum"), num_args(0..=1), default_value_t = 0)]
min_size: u64,
/// Set the display blocksize to Bytes, Kilobytes, Megabytes or Gigabytes
#[arg(long, short, ignore_case(true), value_enum, num_args(0..=1), default_value_t = Blocksize::Kilobytes)]
blocksize: Blocksize,
/// Set verbosity for printed output
#[arg(long, short, ignore_case(true), value_enum, num_args(0..=1), default_value_t = Verbosity::Quiet)]
verbosity: Verbosity,
///Set file to save all output. Use 'no' for no file output
#[arg(long, short, num_args(0..=1), default_value = "Results.txt")]
output: String,
/// Set output format
#[arg(short('f'), long("format"), ignore_case(true), value_enum, num_args(0..=1), default_value_t = PrintFmt::Standard)]
fmt: PrintFmt,
/// Directories to ignore (comma separated list)
#[arg(short, long("ignore"), value_delimiter(','))]
ignore_dirs: Vec<String>,
/// Directories to parse
#[arg(short, long("directories"), value_delimiter(' '), num_args(1..), required = true)]
directories: Vec<String>,
}
#[derive(Debug, Copy, Clone, ValueEnum)]
pub enum PrintFmt {
#[derive(Debug, Copy, Clone)]
pub enum PrintFmt{
Standard,
Json,
Off,
}
#[derive(Debug, Copy, Clone, ValueEnum)]
pub enum Verbosity {
pub enum Verbosity{
Quiet,
Duplicates,
All,
}
#[derive(Debug, Copy, Clone, ValueEnum)]
pub enum Blocksize {
#[clap(name("B"), alias("Bytes"))]
Bytes,
#[clap(name("K"), alias("Kilobytes"))]
Kilobytes,
#[clap(name("M"), alias("Megabytes"))]
Megabytes,
#[clap(name("G"), alias("Gigabytes"))]
Gigabytes,
}
static DDH_ABOUT: &str = "Compare and contrast directories.\nExample invocation: ddh -d /home/jon/downloads /home/jon/documents -v duplicates\nExample pipe: ddh -d ~/Downloads/ -o no -v all -f json | someJsonParser.bin";
fn main() {
let arguments = App::new("Directory Difference hTool")
.version(env!("CARGO_PKG_VERSION"))
.author(env!("CARGO_PKG_AUTHORS"))
.about("Compare and contrast directories.\nExample invocation: ddh /home/jon/downloads /home/jon/documents -f duplicates\nExample pipe: ddh ~/Downloads/ -o no -v all -f json | someJsonParser.bin")
.arg(Arg::with_name("directories")
.short("d")
.long("directories")
.value_name("Directories")
.help("Directories to parse")
.min_values(1)
.required(true)
.takes_value(true)
.index(1))
.arg(Arg::with_name("Blocksize")
.short("bs")
.long("blocksize")
.case_insensitive(true)
.takes_value(true)
.max_values(1)
.possible_values(&["B", "K", "M", "G"])
.help("Sets the display blocksize to Bytes, Kilobytes, Megabytes or Gigabytes. Default is Kilobytes."))
.arg(Arg::with_name("Verbosity")
.short("v")
.long("verbosity")
.possible_values(&["quiet", "duplicates", "all"])
.case_insensitive(true)
.takes_value(true)
.help("Sets verbosity for printed output."))
.arg(Arg::with_name("Output")
.short("o")
.long("output")
.takes_value(true)
.max_values(1)
.help("Sets file to save all output. Use 'no' for no file output."))
.arg(Arg::with_name("Format")
.short("f")
.long("format")
.possible_values(&["standard", "json", "off"])
.takes_value(true)
.max_values(1)
.help("Sets output format."))
.get_matches();
let arguments = Args::parse();
//let (sender, receiver) = channel();
let search_dirs: Vec<_> = arguments.values_of("directories").unwrap()
.collect();
let (complete_files, read_errors): (Vec<Fileinfo>, Vec<(_, _)>) =
ddh::deduplicate_dirs(arguments.directories, arguments.ignore_dirs, arguments.min_size);
let (shared_files, unique_files): (Vec<&Fileinfo>, Vec<&Fileinfo>) = complete_files
.par_iter()
.partition(|&x| x.get_paths().len() > 1);
process_full_output(
&shared_files,
&unique_files,
&complete_files,
&read_errors,
arguments.output.as_str(),
arguments.blocksize,
arguments.fmt,
arguments.verbosity,
);
let (complete_files, read_errors): (Vec<Fileinfo>, Vec<(_, _)>) = ddh::deduplicate_dirs(search_dirs);
let (shared_files, unique_files): (Vec<&Fileinfo>, Vec<&Fileinfo>) = complete_files.par_iter().partition(|&x| x.get_paths().len()>1);
process_full_output(&shared_files, &unique_files, &complete_files, &read_errors, &arguments);
}
fn process_full_output(
shared_files: &[&Fileinfo],
unique_files: &[&Fileinfo],
complete_files: &[Fileinfo],
error_paths: &[(PathBuf, std::io::Error)],
output: &str,
blocksize: Blocksize,
fmt: PrintFmt,
verbosity: Verbosity,
) {
let display_power = match blocksize {
Blocksize::Bytes => 0,
Blocksize::Kilobytes => 1,
Blocksize::Megabytes => 2,
Blocksize::Gigabytes => 3,
};
let display_divisor = 1024u64.pow(display_power);
fn process_full_output(shared_files: &Vec<&Fileinfo>, unique_files: &Vec<&Fileinfo>, complete_files: &Vec<Fileinfo>, error_paths: &Vec<(PathBuf, std::io::Error)>, arguments: &clap::ArgMatches) ->(){
let blocksize = match arguments.value_of("Blocksize").unwrap_or(""){"B" => "Bytes", "K" => "Kilobytes", "M" => "Megabytes", "G" => "Gigabytes", _ => "Megabytes"};
let display_power = match blocksize{"Bytes" => 0, "Kilobytes" => 1, "Megabytes" => 2, "Gigabytes" => 3, _ => 2};
let display_divisor = 1024u64.pow(display_power);
let fmt = match arguments.value_of("Format").unwrap_or(""){
"standard" => PrintFmt::Standard,
"json" => PrintFmt::Json,
_ => PrintFmt::Standard};
let verbosity = match arguments.value_of("Verbosity").unwrap_or(""){
"quiet" => Verbosity::Quiet,
"duplicates" => Verbosity::Duplicates,
"all" => Verbosity::All,
_ => Verbosity::Quiet};
println!(
"{} Total files (with duplicates): {} {:?}",
complete_files
.par_iter()
.map(|x| x.get_paths().len() as u64)
.sum::<u64>(),
complete_files
.par_iter()
.map(|x| (x.get_paths().len() as u64) * x.get_length())
.sum::<u64>()
/ (display_divisor),
blocksize
);
println!(
"{} Total files (without duplicates): {} {:?}",
complete_files.len(),
complete_files
.par_iter()
.map(|x| x.get_length())
.sum::<u64>()
/ (display_divisor),
blocksize
);
println!(
"{} Single instance files: {} {:?}",
unique_files.len(),
unique_files.par_iter().map(|x| x.get_length()).sum::<u64>() / (display_divisor),
blocksize
);
println!(
"{} Shared instance files: {} {:?} ({} instances)",
shared_files.len(),
shared_files.par_iter().map(|x| x.get_length()).sum::<u64>() / (display_divisor),
blocksize,
shared_files
.par_iter()
.map(|x| x.get_paths().len() as u64)
.sum::<u64>()
);
println!("{} Total files (with duplicates): {} {}", complete_files.par_iter()
.map(|x| x.get_paths().len() as u64)
.sum::<u64>(),
complete_files.par_iter()
.map(|x| (x.get_paths().len() as u64)*x.get_length())
.sum::<u64>()/(display_divisor),
blocksize);
println!("{} Total files (without duplicates): {} {}", complete_files.len(), complete_files.par_iter()
.map(|x| x.get_length())
.sum::<u64>()/(display_divisor),
blocksize);
println!("{} Single instance files: {} {}",unique_files.len(), unique_files.par_iter()
.map(|x| x.get_length())
.sum::<u64>()/(display_divisor),
blocksize);
println!("{} Shared instance files: {} {} ({} instances)", shared_files.len(), shared_files.par_iter()
.map(|x| x.get_length())
.sum::<u64>()/(display_divisor),
blocksize, shared_files.par_iter()
.map(|x| x.get_paths().len() as u64)
.sum::<u64>());
match (fmt, verbosity) {
(_, Verbosity::Quiet) => {}
(_, Verbosity::Quiet) => {},
(PrintFmt::Standard, Verbosity::Duplicates) => {
println!("Shared instance files and instance locations");
shared_files.iter().for_each(|x| {
println!(
"instances of {} with file length {}:",
x.get_candidate_name(),
x.get_length()
);
x.get_paths()
.par_iter()
.for_each(|y| println!("\t{}", y.canonicalize().unwrap().to_str().unwrap()));
})
}
println!("Shared instance files and instance locations"); shared_files.iter().for_each(|x| {
println!("instances of {} with file length {}:", x.get_candidate_name(), x.get_length());
x.get_paths().par_iter().for_each(|y| println!("\t{}", y.canonicalize().unwrap().to_str().unwrap()));})
},
(PrintFmt::Standard, Verbosity::All) => {
println!("Single instance files");
unique_files.par_iter().for_each(|x| {
println!(
"{}",
x.get_paths()
.iter()
.next()
.unwrap()
.canonicalize()
.unwrap()
.to_str()
.unwrap()
)
});
println!("Shared instance files and instance locations");
shared_files.iter().for_each(|x| {
println!(
"instances of {} with file length {}:",
x.get_candidate_name(),
x.get_length()
);
x.get_paths()
.par_iter()
.for_each(|y| println!("\t{}", y.canonicalize().unwrap().to_str().unwrap()));
});
error_paths.iter().for_each(|x| {
println!(
"Could not process {:#?} due to error {:#?}",
x.0,
x.1.kind()
);
println!("Single instance files"); unique_files.par_iter()
.for_each(|x| println!("{}", x.get_paths().iter().next().unwrap().canonicalize().unwrap().to_str().unwrap()));
println!("Shared instance files and instance locations"); shared_files.iter().for_each(|x| {
println!("instances of {} with file length {}:", x.get_candidate_name(), x.get_length());
x.get_paths().par_iter().for_each(|y| println!("\t{}", y.canonicalize().unwrap().to_str().unwrap()));});
error_paths.iter().for_each(|x|{
println!("Could not process {:#?} due to error {:#?}", x.0, x.1.kind());
})
}
},
(PrintFmt::Json, Verbosity::Duplicates) => {
println!(
"{}",
serde_json::to_string(shared_files).unwrap_or_else(|_| "".to_string())
);
}
println!("{}", serde_json::to_string(shared_files).unwrap_or("".to_string()));
},
(PrintFmt::Json, Verbosity::All) => {
println!(
"{}",
serde_json::to_string(complete_files).unwrap_or_else(|_| "".to_string())
);
}
println!("{}", serde_json::to_string(complete_files).unwrap_or("".to_string()));
},
_ => {},
}
match output {
"no" => {}
match arguments.value_of("Output").unwrap_or("Results.txt"){
"no" => {},
destination_string => {
match fs::File::open(destination_string) {
Ok(_f) => {
Ok(_f) => {
println!("---");
println!("File {} already exists.", destination_string);
println!("Overwrite? Y/N");
let mut input = String::new();
match stdin().read_line(&mut input) {
Ok(_n) => match input.chars().next().unwrap_or(' ') {
'n' | 'N' => {
println!("Exiting.");
return;
Ok(_n) => {
match input.chars().next().unwrap_or(' ') {
'n' | 'N' => {println!("Exiting."); return;}
'y' | 'Y' => {println!("Over writing {}", destination_string);}
_ => {println!("Exiting."); return;}
}
'y' | 'Y' => {
println!("Over writing {}", destination_string);
}
_ => {
println!("Exiting.");
return;
}
},
Err(_e) => {
println!("Error encountered reading user input. Err: {}", _e);
}
Err(_e) => {println!("Error encountered reading user input. Err: {}", _e);},
}
}
Err(_e) => match fs::File::create(destination_string) {
Ok(_f) => {}
Err(_e) => {
println!(
"Error encountered opening file {}. Err: {}",
destination_string, _e
);
println!("Exiting.");
return;
},
Err(_e) => {
match fs::File::create(destination_string) {
Ok(_f) => {},
Err(_e) => {
println!("Error encountered opening file {}. Err: {}", destination_string, _e);
println!("Exiting."); return;
}
}
},
}
write_results_to_file(
fmt,
shared_files,
unique_files,
complete_files,
destination_string,
);
}
write_results_to_file(fmt, &shared_files, &unique_files, &complete_files, destination_string);
},
}
}
fn write_results_to_file(
fmt: PrintFmt,
shared_files: &[&Fileinfo],
unique_files: &[&Fileinfo],
complete_files: &[Fileinfo],
file: &str,
) {
fn write_results_to_file(fmt: PrintFmt, shared_files: &Vec<&Fileinfo>, unique_files: &Vec<&Fileinfo>, complete_files: &Vec<Fileinfo>, file: &str) {
let mut output = fs::File::create(file).expect("Error opening output file for writing");
match fmt {
PrintFmt::Standard => {
output.write_fmt(format_args!("Duplicates:\n")).unwrap();
for file in shared_files.iter() {
let title = file.get_candidate_name();
for file in shared_files.into_iter(){
let title = file.get_paths().get(0).unwrap().file_name().unwrap().to_str().unwrap();
output.write_fmt(format_args!("{}\n", title)).unwrap();
for entry in file.get_paths().iter() {
output
.write_fmt(format_args!("\t{}\n", entry.as_path().to_str().unwrap()))
.unwrap();
for entry in file.get_paths().iter(){
output.write_fmt(format_args!("\t{}\n", entry.as_path().to_str().unwrap())).unwrap();
}
}
output.write_fmt(format_args!("Singletons:\n")).unwrap();
for file in unique_files.iter() {
let title = file.get_candidate_name();
for file in unique_files.into_iter(){
let title = file.get_paths().get(0).unwrap().file_name().unwrap().to_str().unwrap();
output.write_fmt(format_args!("{}\n", title)).unwrap();
for entry in file.get_paths().iter() {
output
.write_fmt(format_args!("\t{}\n", entry.as_path().to_str().unwrap()))
.unwrap();
for entry in file.get_paths().iter(){
output.write_fmt(format_args!("\t{}\n", entry.as_path().to_str().unwrap())).unwrap();
}
}
}
},
PrintFmt::Json => {
output
.write_fmt(format_args!(
"{}",
serde_json::to_string(complete_files)
.unwrap_or_else(|_| "Error deserializing".to_string())
))
.unwrap();
}
output.write_fmt(format_args!("{}", serde_json::to_string(complete_files).unwrap_or("Error deserializing".to_string()))).unwrap();
},
PrintFmt::Off =>{return},
}
println!("{:#?} results written to {}", fmt, file);
}

View file

@ -1,38 +0,0 @@
use std::fs::File;
use std::io::{self, Read};
pub struct ChunkIter {
f: File,
chunk_len: usize,
}
impl ChunkIter {
pub fn new(f: File, len: usize) -> Self {
ChunkIter {
f: f,
chunk_len: len,
}
}
}
impl Iterator for ChunkIter {
type Item = Result<Vec<u8>, io::Error>;
fn next(&mut self) -> Option<Result<Vec<u8>, io::Error>> {
let mut buffer = Vec::with_capacity(self.chunk_len);
match self
.f
.by_ref()
.take(self.chunk_len as u64)
.read_to_end(&mut buffer)
{
Ok(i) => {
if i == 0 {
return None;
} else {
Some(Ok(buffer))
}
}
Err(e) => Some(Err(e)),
}
}
}