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use std::collections::BTreeMap;
#[cfg(target_family = "unix")]
use std::collections::HashSet;
use std::fs::{File, Metadata, OpenOptions};
use std::hash::Hasher;
use std::io::prelude::*;
use std::io::{self, Error, ErrorKind};
use std::io::{BufReader, BufWriter};
#[cfg(target_family = "unix")]
use std::os::unix::fs::MetadataExt;
use std::path::{Path, PathBuf};
use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
use std::sync::Arc;
use std::thread::sleep;
use std::time::{Duration, SystemTime, UNIX_EPOCH};
use std::{fs, mem, thread};
use crossbeam_channel::Receiver;
use directories_next::ProjectDirs;
use humansize::{file_size_opts as options, FileSize};
use rayon::prelude::*;
use crate::common::Common;
use crate::common_directory::Directories;
use crate::common_extensions::Extensions;
use crate::common_items::ExcludedItems;
use crate::common_messages::Messages;
use crate::common_traits::*;
use crate::fl;
use crate::localizer::generate_translation_hashmap;
#[derive(Debug)]
pub struct ProgressData {
pub checking_method: CheckingMethod,
pub current_stage: u8,
pub max_stage: u8,
pub files_checked: usize,
pub files_to_check: usize,
}
#[derive(PartialEq, Eq, Clone, Debug, Copy)]
pub enum CheckingMethod {
None,
Name,
Size,
Hash,
}
#[derive(PartialEq, Eq, Clone, Debug, Copy)]
pub enum HashType {
Blake3,
Crc32,
Xxh3,
}
impl HashType {
fn hasher(self: &HashType) -> Box<dyn MyHasher> {
match self {
HashType::Blake3 => Box::new(blake3::Hasher::new()),
HashType::Crc32 => Box::new(crc32fast::Hasher::new()),
HashType::Xxh3 => Box::new(xxhash_rust::xxh3::Xxh3::new()),
}
}
}
#[derive(Eq, PartialEq, Clone, Debug)]
pub enum DeleteMethod {
None,
AllExceptNewest,
AllExceptOldest,
OneOldest,
OneNewest,
HardLink,
}
#[derive(Clone, Debug, PartialEq, Default)]
pub struct FileEntry {
pub path: PathBuf,
pub size: u64,
pub modified_date: u64,
pub hash: String,
}
/// Info struck with helpful information's about results
#[derive(Default)]
pub struct Info {
pub number_of_groups_by_size: usize,
pub number_of_duplicated_files_by_size: usize,
pub number_of_groups_by_hash: usize,
pub number_of_duplicated_files_by_hash: usize,
pub number_of_groups_by_name: usize,
pub number_of_duplicated_files_by_name: usize,
pub lost_space_by_size: u64,
pub lost_space_by_hash: u64,
pub gained_space: u64,
}
impl Info {
pub fn new() -> Self {
Default::default()
}
}
/// Struct with required information's to work
pub struct DuplicateFinder {
text_messages: Messages,
information: Info,
files_with_identical_names: BTreeMap<String, Vec<FileEntry>>, // File Size, File Entry
files_with_identical_size: BTreeMap<u64, Vec<FileEntry>>, // File Size, File Entry
files_with_identical_hashes: BTreeMap<u64, Vec<Vec<FileEntry>>>, // File Size, File Entry
directories: Directories,
allowed_extensions: Extensions,
excluded_items: ExcludedItems,
recursive_search: bool,
minimal_file_size: u64,
maximal_file_size: u64,
check_method: CheckingMethod,
delete_method: DeleteMethod,
hash_type: HashType,
ignore_hard_links: bool,
dryrun: bool,
stopped_search: bool,
use_cache: bool,
use_prehash_cache: bool,
minimal_cache_file_size: u64,
minimal_prehash_cache_file_size: u64,
delete_outdated_cache: bool,
}
impl DuplicateFinder {
pub fn new() -> Self {
Self {
text_messages: Messages::new(),
information: Info::new(),
files_with_identical_names: Default::default(),
files_with_identical_size: Default::default(),
files_with_identical_hashes: Default::default(),
recursive_search: true,
allowed_extensions: Extensions::new(),
check_method: CheckingMethod::None,
delete_method: DeleteMethod::None,
minimal_file_size: 8192,
maximal_file_size: u64::MAX,
directories: Directories::new(),
excluded_items: ExcludedItems::new(),
stopped_search: false,
ignore_hard_links: true,
hash_type: HashType::Blake3,
dryrun: false,
use_cache: true,
use_prehash_cache: true,
minimal_cache_file_size: 1024 * 1024 / 4, // By default cache only >= 256 KB files
minimal_prehash_cache_file_size: 0,
delete_outdated_cache: true,
}
}
pub fn find_duplicates(&mut self, stop_receiver: Option<&Receiver<()>>, progress_sender: Option<&futures::channel::mpsc::UnboundedSender<ProgressData>>) {
self.directories.optimize_directories(self.recursive_search, &mut self.text_messages);
match self.check_method {
CheckingMethod::Name => {
if !self.check_files_name(stop_receiver, progress_sender) {
self.stopped_search = true;
return;
}
}
CheckingMethod::Size => {
if !self.check_files_size(stop_receiver, progress_sender) {
self.stopped_search = true;
return;
}
}
CheckingMethod::Hash => {
if !self.check_files_size(stop_receiver, progress_sender) {
self.stopped_search = true;
return;
}
if !self.check_files_hash(stop_receiver, progress_sender) {
self.stopped_search = true;
return;
}
}
CheckingMethod::None => {
panic!();
}
}
self.delete_files();
self.debug_print();
}
pub fn set_delete_outdated_cache(&mut self, delete_outdated_cache: bool) {
self.delete_outdated_cache = delete_outdated_cache;
}
pub const fn get_check_method(&self) -> &CheckingMethod {
&self.check_method
}
pub fn get_stopped_search(&self) -> bool {
self.stopped_search
}
pub fn set_minimal_cache_file_size(&mut self, minimal_cache_file_size: u64) {
self.minimal_cache_file_size = minimal_cache_file_size;
}
pub fn set_minimal_prehash_cache_file_size(&mut self, minimal_prehash_cache_file_size: u64) {
self.minimal_prehash_cache_file_size = minimal_prehash_cache_file_size;
}
pub const fn get_files_sorted_by_names(&self) -> &BTreeMap<String, Vec<FileEntry>> {
&self.files_with_identical_names
}
pub fn set_use_cache(&mut self, use_cache: bool) {
self.use_cache = use_cache;
}
pub fn set_use_prehash_cache(&mut self, use_prehash_cache: bool) {
self.use_prehash_cache = use_prehash_cache;
}
pub const fn get_files_sorted_by_size(&self) -> &BTreeMap<u64, Vec<FileEntry>> {
&self.files_with_identical_size
}
pub const fn get_files_sorted_by_hash(&self) -> &BTreeMap<u64, Vec<Vec<FileEntry>>> {
&self.files_with_identical_hashes
}
pub fn set_maximal_file_size(&mut self, maximal_file_size: u64) {
self.maximal_file_size = match maximal_file_size {
0 => 1,
t => t,
};
}
pub const fn get_text_messages(&self) -> &Messages {
&self.text_messages
}
pub const fn get_information(&self) -> &Info {
&self.information
}
pub fn set_hash_type(&mut self, hash_type: HashType) {
self.hash_type = hash_type;
}
pub fn set_ignore_hard_links(&mut self, ignore_hard_links: bool) {
self.ignore_hard_links = ignore_hard_links;
}
pub fn set_dryrun(&mut self, dryrun: bool) {
self.dryrun = dryrun;
}
pub fn set_check_method(&mut self, check_method: CheckingMethod) {
self.check_method = check_method;
}
pub fn set_delete_method(&mut self, delete_method: DeleteMethod) {
self.delete_method = delete_method;
}
pub fn set_minimal_file_size(&mut self, minimal_file_size: u64) {
self.minimal_file_size = match minimal_file_size {
0 => 1,
t => t,
};
}
pub fn set_recursive_search(&mut self, recursive_search: bool) {
self.recursive_search = recursive_search;
}
pub fn set_included_directory(&mut self, included_directory: Vec<PathBuf>) -> bool {
self.directories.set_included_directory(included_directory, &mut self.text_messages)
}
pub fn set_excluded_directory(&mut self, excluded_directory: Vec<PathBuf>) {
self.directories.set_excluded_directory(excluded_directory, &mut self.text_messages);
}
pub fn set_allowed_extensions(&mut self, allowed_extensions: String) {
self.allowed_extensions.set_allowed_extensions(allowed_extensions, &mut self.text_messages);
}
pub fn set_excluded_items(&mut self, excluded_items: Vec<String>) {
self.excluded_items.set_excluded_items(excluded_items, &mut self.text_messages);
}
fn check_files_name(&mut self, stop_receiver: Option<&Receiver<()>>, progress_sender: Option<&futures::channel::mpsc::UnboundedSender<ProgressData>>) -> bool {
let start_time: SystemTime = SystemTime::now();
let mut folders_to_check: Vec<PathBuf> = Vec::with_capacity(1024 * 2); // This should be small enough too not see to big difference and big enough to store most of paths without needing to resize vector
// Add root folders for finding
for id in &self.directories.included_directories {
folders_to_check.push(id.clone());
}
//// PROGRESS THREAD START
const LOOP_DURATION: u32 = 200; //in ms
let progress_thread_run = Arc::new(AtomicBool::new(true));
let atomic_file_counter = Arc::new(AtomicUsize::new(0));
let progress_thread_handle = if let Some(progress_sender) = progress_sender {
let progress_send = progress_sender.clone();
let progress_thread_run = progress_thread_run.clone();
let atomic_file_counter = atomic_file_counter.clone();
thread::spawn(move || loop {
progress_send
.unbounded_send(ProgressData {
checking_method: CheckingMethod::Name,
current_stage: 0,
max_stage: 0,
files_checked: atomic_file_counter.load(Ordering::Relaxed) as usize,
files_to_check: 0,
})
.unwrap();
if !progress_thread_run.load(Ordering::Relaxed) {
break;
}
sleep(Duration::from_millis(LOOP_DURATION as u64));
})
} else {
thread::spawn(|| {})
};
//// PROGRESS THREAD END
while !folders_to_check.is_empty() {
if stop_receiver.is_some() && stop_receiver.unwrap().try_recv().is_ok() {
// End thread which send info to gui
progress_thread_run.store(false, Ordering::Relaxed);
progress_thread_handle.join().unwrap();
return false;
}
let segments: Vec<_> = folders_to_check
.par_iter()
.map(|current_folder| {
let mut dir_result = vec![];
let mut warnings = vec![];
let mut fe_result = vec![];
// Read current dir childrens
let read_dir = match fs::read_dir(&current_folder) {
Ok(t) => t,
Err(e) => {
warnings.push(fl!(
"core_cannot_open_dir",
generate_translation_hashmap(vec![("dir", current_folder.display().to_string()), ("reason", e.to_string())])
));
return (dir_result, warnings, fe_result);
}
};
// Check every sub folder/file/link etc.
'dir: for entry in read_dir {
let entry_data = match entry {
Ok(t) => t,
Err(e) => {
warnings.push(fl!(
"core_cannot_read_entry_dir",
generate_translation_hashmap(vec![("dir", current_folder.display().to_string()), ("reason", e.to_string())])
));
continue 'dir;
}
};
let metadata: Metadata = match entry_data.metadata() {
Ok(t) => t,
Err(e) => {
warnings.push(fl!(
"core_cannot_read_metadata_dir",
generate_translation_hashmap(vec![("dir", current_folder.display().to_string()), ("reason", e.to_string())])
));
continue 'dir;
}
};
if metadata.is_dir() {
if !self.recursive_search {
continue 'dir;
}
let next_folder = current_folder.join(entry_data.file_name());
if self.directories.is_excluded(&next_folder) {
continue 'dir;
}
if self.excluded_items.is_excluded(&next_folder) {
continue 'dir;
}
dir_result.push(next_folder);
} else if metadata.is_file() {
atomic_file_counter.fetch_add(1, Ordering::Relaxed);
let file_name_lowercase: String = match entry_data.file_name().into_string() {
Ok(t) => t,
Err(_inspected) => {
warnings.push(fl!(
"core_file_not_utf8_name",
generate_translation_hashmap(vec![("name", entry_data.path().display().to_string())])
));
continue 'dir;
}
}
.to_lowercase();
if !self.allowed_extensions.matches_filename(&file_name_lowercase) {
continue 'dir;
}
if (self.minimal_file_size..=self.maximal_file_size).contains(&metadata.len()) {
let current_file_name = current_folder.join(entry_data.file_name());
if self.excluded_items.is_excluded(&current_file_name) {
continue 'dir;
}
let fe: FileEntry = FileEntry {
path: current_file_name.clone(),
size: metadata.len(),
modified_date: match metadata.modified() {
Ok(t) => match t.duration_since(UNIX_EPOCH) {
Ok(d) => d.as_secs(),
Err(_inspected) => {
warnings.push(fl!(
"core_file_modified_before_epoch",
generate_translation_hashmap(vec![("name", current_file_name.display().to_string())])
));
0
}
},
Err(e) => {
warnings.push(fl!(
"core_file_no_modification_date",
generate_translation_hashmap(vec![("name", current_file_name.display().to_string()), ("reason", e.to_string())])
));
0
}
},
hash: "".to_string(),
};
fe_result.push((entry_data.file_name().to_string_lossy().to_string(), fe));
}
}
}
(dir_result, warnings, fe_result)
})
.collect();
// Advance the frontier
folders_to_check.clear();
// Process collected data
for (segment, warnings, fe_result) in segments {
folders_to_check.extend(segment);
self.text_messages.warnings.extend(warnings);
for (name, fe) in fe_result {
self.files_with_identical_names.entry(name.clone()).or_insert_with(Vec::new);
self.files_with_identical_names.get_mut(&name).unwrap().push(fe);
}
}
}
// End thread which send info to gui
progress_thread_run.store(false, Ordering::Relaxed);
progress_thread_handle.join().unwrap();
// Create new BTreeMap without single size entries(files have not duplicates)
let mut new_map: BTreeMap<String, Vec<FileEntry>> = Default::default();
for (name, vector) in &self.files_with_identical_names {
if vector.len() > 1 {
self.information.number_of_duplicated_files_by_name += vector.len() - 1;
self.information.number_of_groups_by_name += 1;
new_map.insert(name.clone(), vector.clone());
}
}
self.files_with_identical_names = new_map;
Common::print_time(start_time, SystemTime::now(), "check_files_name".to_string());
true
}
/// Read file length and puts it to different boxes(each for different lengths)
/// If in box is only 1 result, then it is removed
fn check_files_size(&mut self, stop_receiver: Option<&Receiver<()>>, progress_sender: Option<&futures::channel::mpsc::UnboundedSender<ProgressData>>) -> bool {
let start_time: SystemTime = SystemTime::now();
let mut folders_to_check: Vec<PathBuf> = Vec::with_capacity(1024 * 2); // This should be small enough too not see to big difference and big enough to store most of paths without needing to resize vector
// Add root folders for finding
for id in &self.directories.included_directories {
folders_to_check.push(id.clone());
}
//// PROGRESS THREAD START
const LOOP_DURATION: u32 = 200; //in ms
let progress_thread_run = Arc::new(AtomicBool::new(true));
let atomic_file_counter = Arc::new(AtomicUsize::new(0));
let progress_thread_handle = if let Some(progress_sender) = progress_sender {
let progress_send = progress_sender.clone();
let progress_thread_run = progress_thread_run.clone();
let atomic_file_counter = atomic_file_counter.clone();
let checking_method = self.check_method;
let max_stage = match self.check_method {
CheckingMethod::Size => 0,
CheckingMethod::Hash => 2,
_ => panic!(),
};
thread::spawn(move || loop {
progress_send
.unbounded_send(ProgressData {
checking_method,
current_stage: 0,
max_stage,
files_checked: atomic_file_counter.load(Ordering::Relaxed) as usize,
files_to_check: 0,
})
.unwrap();
if !progress_thread_run.load(Ordering::Relaxed) {
break;
}
sleep(Duration::from_millis(LOOP_DURATION as u64));
})
} else {
thread::spawn(|| {})
};
//// PROGRESS THREAD END
while !folders_to_check.is_empty() {
if stop_receiver.is_some() && stop_receiver.unwrap().try_recv().is_ok() {
// End thread which send info to gui
progress_thread_run.store(false, Ordering::Relaxed);
progress_thread_handle.join().unwrap();
return false;
}
let segments: Vec<_> = folders_to_check
.par_iter()
.map(|current_folder| {
let mut dir_result = vec![];
let mut warnings = vec![];
let mut fe_result = vec![];
// Read current dir childrens
let read_dir = match fs::read_dir(&current_folder) {
Ok(t) => t,
Err(e) => {
warnings.push(fl!(
"core_cannot_open_dir",
generate_translation_hashmap(vec![("dir", current_folder.display().to_string()), ("reason", e.to_string())])
));
return (dir_result, warnings, fe_result);
}
};
// Check every sub folder/file/link etc.
'dir: for entry in read_dir {
let entry_data = match entry {
Ok(t) => t,
Err(e) => {
warnings.push(fl!(
"core_cannot_read_entry_dir",
generate_translation_hashmap(vec![("dir", current_folder.display().to_string()), ("reason", e.to_string())])
));
continue 'dir;
}
};
let metadata: Metadata = match entry_data.metadata() {
Ok(t) => t,
Err(e) => {
warnings.push(fl!(
"core_cannot_read_metadata_dir",
generate_translation_hashmap(vec![("dir", current_folder.display().to_string()), ("reason", e.to_string())])
));
continue 'dir;
}
};
if metadata.is_dir() {
if !self.recursive_search {
continue 'dir;
}
let next_folder = current_folder.join(entry_data.file_name());
if self.directories.is_excluded(&next_folder) {
continue 'dir;
}
if self.excluded_items.is_excluded(&next_folder) {
continue 'dir;
}
dir_result.push(next_folder);
} else if metadata.is_file() {
atomic_file_counter.fetch_add(1, Ordering::Relaxed);
let file_name_lowercase: String = match entry_data.file_name().into_string() {
Ok(t) => t,
Err(_inspected) => {
warnings.push(fl!(
"core_file_not_utf8_name",
generate_translation_hashmap(vec![("name", entry_data.path().display().to_string())])
));
continue 'dir;
}
}
.to_lowercase();
if !self.allowed_extensions.matches_filename(&file_name_lowercase) {
continue 'dir;
}
if (self.minimal_file_size..=self.maximal_file_size).contains(&metadata.len()) {
let current_file_name = current_folder.join(entry_data.file_name());
if self.excluded_items.is_excluded(&current_file_name) {
continue 'dir;
}
// Creating new file entry
let fe: FileEntry = FileEntry {
path: current_file_name.clone(),
size: metadata.len(),
modified_date: match metadata.modified() {
Ok(t) => match t.duration_since(UNIX_EPOCH) {
Ok(d) => d.as_secs(),
Err(_inspected) => {
warnings.push(fl!(
"core_file_modified_before_epoch",
generate_translation_hashmap(vec![("name", current_file_name.display().to_string())])
));
0
}
},
Err(e) => {
warnings.push(fl!(
"core_file_no_modification_date",
generate_translation_hashmap(vec![("name", current_file_name.display().to_string()), ("reason", e.to_string())])
));
0
}
},
hash: "".to_string(),
};
fe_result.push(fe);
}
}
}
(dir_result, warnings, fe_result)
})
.collect();
// Advance the frontier
folders_to_check.clear();
// Process collected data
for (segment, warnings, fe_result) in segments {
folders_to_check.extend(segment);
self.text_messages.warnings.extend(warnings);
for fe in fe_result {
self.files_with_identical_size.entry(fe.size).or_insert_with(Vec::new);
self.files_with_identical_size.get_mut(&fe.size).unwrap().push(fe);
}
}
}
// End thread which send info to gui
progress_thread_run.store(false, Ordering::Relaxed);
progress_thread_handle.join().unwrap();
// Create new BTreeMap without single size entries(files have not duplicates)
let mut old_map: BTreeMap<u64, Vec<FileEntry>> = Default::default();
mem::swap(&mut old_map, &mut self.files_with_identical_size);
for (size, vec) in old_map {
if vec.len() <= 1 {
continue;
}
let vector = if self.ignore_hard_links { filter_hard_links(&vec) } else { vec };
if vector.len() > 1 {
self.information.number_of_duplicated_files_by_size += vector.len() - 1;
self.information.number_of_groups_by_size += 1;
self.information.lost_space_by_size += (vector.len() as u64 - 1) * size;
self.files_with_identical_size.insert(size, vector);
}
}
Common::print_time(start_time, SystemTime::now(), "check_files_size".to_string());
true
}
/// The slowest checking type, which must be applied after checking for size
fn check_files_hash(&mut self, stop_receiver: Option<&Receiver<()>>, progress_sender: Option<&futures::channel::mpsc::UnboundedSender<ProgressData>>) -> bool {
assert_eq!(self.check_method, CheckingMethod::Hash);
let check_type = Arc::new(self.hash_type);
let start_time: SystemTime = SystemTime::now();
let check_was_breaked = AtomicBool::new(false); // Used for breaking from GUI and ending check thread
let mut pre_checked_map: BTreeMap<u64, Vec<FileEntry>> = Default::default();
//// PROGRESS THREAD START
const LOOP_DURATION: u32 = 200; //in ms
let progress_thread_run = Arc::new(AtomicBool::new(true));
let atomic_file_counter = Arc::new(AtomicUsize::new(0));
let progress_thread_handle = if let Some(progress_sender) = progress_sender {
let progress_send = progress_sender.clone();
let progress_thread_run = progress_thread_run.clone();
let atomic_file_counter = atomic_file_counter.clone();
let files_to_check = self.files_with_identical_size.iter().map(|e| e.1.len()).sum();
let checking_method = self.check_method;
thread::spawn(move || loop {
progress_send
.unbounded_send(ProgressData {
checking_method,
current_stage: 1,
max_stage: 2,
files_checked: atomic_file_counter.load(Ordering::Relaxed) as usize,
files_to_check,
})
.unwrap();
if !progress_thread_run.load(Ordering::Relaxed) {
break;
}
sleep(Duration::from_millis(LOOP_DURATION as u64));
})
} else {
thread::spawn(|| {})
};
//// PROGRESS THREAD END
///////////////////////////////////////////////////////////////////////////// PREHASHING START
{
let loaded_hash_map;
let mut records_already_cached: BTreeMap<u64, Vec<FileEntry>> = Default::default();
let mut non_cached_files_to_check: BTreeMap<u64, Vec<FileEntry>> = Default::default();
// Cache algorithm
// - Load data from cache
// - Convert from BT<u64,Vec<FileEntry>> to BT<String,FileEntry>
// - Save to proper values
if self.use_prehash_cache {
loaded_hash_map = match load_hashes_from_file(&mut self.text_messages, self.delete_outdated_cache, &self.hash_type, true) {
Some(t) => t,
None => Default::default(),
};
let mut loaded_hash_map2: BTreeMap<String, FileEntry> = Default::default();
for vec_file_entry in loaded_hash_map.values() {
for file_entry in vec_file_entry {
loaded_hash_map2.insert(file_entry.path.to_string_lossy().to_string(), file_entry.clone());
}
}
#[allow(clippy::if_same_then_else)]
for vec_file_entry in self.files_with_identical_size.values() {
for file_entry in vec_file_entry {
let name = file_entry.path.to_string_lossy().to_string();
if !loaded_hash_map2.contains_key(&name) {
// If loaded data doesn't contains current image info
non_cached_files_to_check.entry(file_entry.size).or_insert_with(Vec::new);
non_cached_files_to_check.get_mut(&file_entry.size).unwrap().push(file_entry.clone());
} else if file_entry.size != loaded_hash_map2.get(&name).unwrap().size || file_entry.modified_date != loaded_hash_map2.get(&name).unwrap().modified_date {
// When size or modification date of image changed, then it is clear that is different image
non_cached_files_to_check.entry(file_entry.size).or_insert_with(Vec::new);
non_cached_files_to_check.get_mut(&file_entry.size).unwrap().push(file_entry.clone());
} else {
// Checking may be omitted when already there is entry with same size and modification date
records_already_cached.entry(file_entry.size).or_insert_with(Vec::new);
records_already_cached.get_mut(&file_entry.size).unwrap().push(file_entry.clone());
}
}
}
} else {
loaded_hash_map = Default::default();
mem::swap(&mut self.files_with_identical_size, &mut non_cached_files_to_check);
}
#[allow(clippy::type_complexity)]
let pre_hash_results: Vec<(u64, BTreeMap<String, Vec<FileEntry>>, Vec<String>)> = non_cached_files_to_check
.par_iter()
.map(|(size, vec_file_entry)| {
let mut hashmap_with_hash: BTreeMap<String, Vec<FileEntry>> = Default::default();
let mut errors: Vec<String> = Vec::new();
let mut buffer = [0u8; 1024 * 2];
atomic_file_counter.fetch_add(vec_file_entry.len(), Ordering::Relaxed);
for file_entry in vec_file_entry {
if stop_receiver.is_some() && stop_receiver.unwrap().try_recv().is_ok() {
check_was_breaked.store(true, Ordering::Relaxed);
return None;
}
match hash_calculation(&mut buffer, file_entry, &check_type, 0) {
Ok(hash_string) => {
hashmap_with_hash.entry(hash_string.clone()).or_insert_with(Vec::new);
hashmap_with_hash.get_mut(hash_string.as_str()).unwrap().push(file_entry.clone());
}
Err(s) => errors.push(s),
}
}
Some((*size, hashmap_with_hash, errors))
})
.while_some()
.collect();
// End thread which send info to gui
progress_thread_run.store(false, Ordering::Relaxed);
progress_thread_handle.join().unwrap();
// Check if user aborted search(only from GUI)
if check_was_breaked.load(Ordering::Relaxed) {
return false;
}
// Add data from cache
for (size, vec_file_entry) in &records_already_cached {
pre_checked_map.entry(*size).or_insert_with(Vec::new);
pre_checked_map.get_mut(size).unwrap().append(&mut vec_file_entry.clone());
}
// Check results
for (size, hash_map, errors) in &pre_hash_results {
self.text_messages.warnings.append(&mut errors.clone());
for vec_file_entry in hash_map.values() {
if vec_file_entry.len() > 1 {
pre_checked_map.entry(*size).or_insert_with(Vec::new);
pre_checked_map.get_mut(size).unwrap().append(&mut vec_file_entry.clone());
}
}
}
if self.use_prehash_cache {
// All results = records already cached + computed results
let mut save_cache_to_hashmap: BTreeMap<String, FileEntry> = Default::default();
for (size, vec_file_entry) in loaded_hash_map {
if size >= self.minimal_prehash_cache_file_size {
for file_entry in vec_file_entry {
save_cache_to_hashmap.insert(file_entry.path.to_string_lossy().to_string(), file_entry.clone());
}
}
}
for (size, hash_map, _errors) in &pre_hash_results {
if *size >= self.minimal_prehash_cache_file_size {
for vec_file_entry in hash_map.values() {
for file_entry in vec_file_entry {
save_cache_to_hashmap.insert(file_entry.path.to_string_lossy().to_string(), file_entry.clone());
}
}
}
}
save_hashes_to_file(&save_cache_to_hashmap, &mut self.text_messages, &self.hash_type, true, self.minimal_prehash_cache_file_size);
}
}
///////////////////////////////////////////////////////////////////////////// PREHASHING END
Common::print_time(start_time, SystemTime::now(), "check_files_hash - prehash".to_string());
let start_time: SystemTime = SystemTime::now();
/////////////////////////
//// PROGRESS THREAD START
// const LOOP_DURATION: u32 = 200; //in ms
let progress_thread_run = Arc::new(AtomicBool::new(true));
let atomic_file_counter = Arc::new(AtomicUsize::new(0));
let progress_thread_handle = if let Some(progress_sender) = progress_sender {
let progress_send = progress_sender.clone();
let progress_thread_run = progress_thread_run.clone();
let atomic_file_counter = atomic_file_counter.clone();
let files_to_check = pre_checked_map.iter().map(|(_size, vec_file_entry)| vec_file_entry.len()).sum();
let checking_method = self.check_method;
thread::spawn(move || loop {
progress_send
.unbounded_send(ProgressData {
checking_method,
current_stage: 2,
max_stage: 2,
files_checked: atomic_file_counter.load(Ordering::Relaxed) as usize,
files_to_check,
})
.unwrap();
if !progress_thread_run.load(Ordering::Relaxed) {
break;
}
sleep(Duration::from_millis(LOOP_DURATION as u64));
})
} else {
thread::spawn(|| {})
};
//// PROGRESS THREAD END
///////////////////////////////////////////////////////////////////////////// HASHING START
{
#[allow(clippy::type_complexity)]
let mut full_hash_results: Vec<(u64, BTreeMap<String, Vec<FileEntry>>, Vec<String>)>;
let loaded_hash_map;
let mut records_already_cached: BTreeMap<u64, Vec<FileEntry>> = Default::default();
let mut non_cached_files_to_check: BTreeMap<u64, Vec<FileEntry>> = Default::default();
if self.use_cache {
loaded_hash_map = match load_hashes_from_file(&mut self.text_messages, self.delete_outdated_cache, &self.hash_type, false) {
Some(t) => t,
None => Default::default(),
};
for (size, vec_file_entry) in pre_checked_map {
#[allow(clippy::collapsible_if)]
if !loaded_hash_map.contains_key(&size) {
// If loaded data doesn't contains current info
non_cached_files_to_check.insert(size, vec_file_entry);
} else {
let loaded_vec_file_entry = loaded_hash_map.get(&size).unwrap();
for file_entry in vec_file_entry {
let mut found: bool = false;
for loaded_file_entry in loaded_vec_file_entry {
if file_entry.path == loaded_file_entry.path && file_entry.modified_date == loaded_file_entry.modified_date {
records_already_cached.entry(file_entry.size).or_insert_with(Vec::new);
records_already_cached.get_mut(&file_entry.size).unwrap().push(loaded_file_entry.clone());
found = true;
break;
}
}
if !found {
non_cached_files_to_check.entry(file_entry.size).or_insert_with(Vec::new);
non_cached_files_to_check.get_mut(&file_entry.size).unwrap().push(file_entry);
}
}
}
}
} else {
loaded_hash_map = Default::default();
mem::swap(&mut pre_checked_map, &mut non_cached_files_to_check);
}
full_hash_results = non_cached_files_to_check
.par_iter()
.map(|(size, vec_file_entry)| {
let mut hashmap_with_hash: BTreeMap<String, Vec<FileEntry>> = Default::default();
let mut errors: Vec<String> = Vec::new();
let mut buffer = [0u8; 1024 * 128];
atomic_file_counter.fetch_add(vec_file_entry.len(), Ordering::Relaxed);
for file_entry in vec_file_entry {
if stop_receiver.is_some() && stop_receiver.unwrap().try_recv().is_ok() {
check_was_breaked.store(true, Ordering::Relaxed);
return None;
}
match hash_calculation(&mut buffer, file_entry, &check_type, u64::MAX) {
Ok(hash_string) => {
let mut file_entry = file_entry.clone();
file_entry.hash = hash_string.clone();
hashmap_with_hash.entry(hash_string.clone()).or_insert_with(Vec::new);
hashmap_with_hash.get_mut(hash_string.as_str()).unwrap().push(file_entry);
}
Err(s) => errors.push(s),
}
}
Some((*size, hashmap_with_hash, errors))
})
.while_some()
.collect();
if self.use_cache {
'main: for (size, vec_file_entry) in records_already_cached {
// Check if size already exists, if exists we must to change it outside because cannot have mut and non mut reference to full_hash_results
for (full_size, full_hashmap, _errors) in &mut full_hash_results {
if size == *full_size {
for file_entry in vec_file_entry {
full_hashmap.entry(file_entry.hash.clone()).or_insert_with(Vec::new);
full_hashmap.get_mut(&file_entry.hash).unwrap().push(file_entry);
}
continue 'main;
}
}
// Size doesn't exists add results to files
let mut temp_hashmap: BTreeMap<String, Vec<FileEntry>> = Default::default();
for file_entry in vec_file_entry {
temp_hashmap.entry(file_entry.hash.clone()).or_insert_with(Vec::new);
temp_hashmap.get_mut(&file_entry.hash).unwrap().push(file_entry);
}
full_hash_results.push((size, temp_hashmap, Vec::new()));
}
// Must save all results to file, old loaded from file with all currently counted results
let mut all_results: BTreeMap<String, FileEntry> = Default::default();
for (_size, vec_file_entry) in loaded_hash_map {
for file_entry in vec_file_entry {
all_results.insert(file_entry.path.to_string_lossy().to_string(), file_entry);
}
}
for (_size, hashmap, _errors) in &full_hash_results {
for vec_file_entry in hashmap.values() {
for file_entry in vec_file_entry {
all_results.insert(file_entry.path.to_string_lossy().to_string(), file_entry.clone());
}
}
}
save_hashes_to_file(&all_results, &mut self.text_messages, &self.hash_type, false, self.minimal_cache_file_size);
}
// End thread which send info to gui
progress_thread_run.store(false, Ordering::Relaxed);
progress_thread_handle.join().unwrap();
// Check if user aborted search(only from GUI)
if check_was_breaked.load(Ordering::Relaxed) {
return false;
}
for (size, hash_map, mut errors) in full_hash_results {
self.text_messages.warnings.append(&mut errors);
for (_hash, vec_file_entry) in hash_map {
if vec_file_entry.len() > 1 {
self.files_with_identical_hashes.entry(size).or_insert_with(Vec::new);
self.files_with_identical_hashes.get_mut(&size).unwrap().push(vec_file_entry);
}
}
}
/////////////////////////
for (size, vector_vectors) in &self.files_with_identical_hashes {
for vector in vector_vectors {
self.information.number_of_duplicated_files_by_hash += vector.len() - 1;
self.information.number_of_groups_by_hash += 1;
self.information.lost_space_by_hash += (vector.len() as u64 - 1) * size;
}
}
}
///////////////////////////////////////////////////////////////////////////// HASHING END
Common::print_time(start_time, SystemTime::now(), "check_files_hash - full hash".to_string());
// Clean unused data
self.files_with_identical_size = Default::default();
true
}
/// Function to delete files, from filed before BTreeMap
/// Using another function to delete files to avoid duplicates data
fn delete_files(&mut self) {
let start_time: SystemTime = SystemTime::now();
if self.delete_method == DeleteMethod::None {
return;
}
match self.check_method {
CheckingMethod::Name => {
for vector in self.files_with_identical_names.values() {
let tuple: (u64, usize, usize) = delete_files(vector, &self.delete_method, &mut self.text_messages, self.dryrun);
self.information.gained_space += tuple.0;
}
}
CheckingMethod::Hash => {
for vector_vectors in self.files_with_identical_hashes.values() {
for vector in vector_vectors.iter() {
let tuple: (u64, usize, usize) = delete_files(vector, &self.delete_method, &mut self.text_messages, self.dryrun);
self.information.gained_space += tuple.0;
}
}
}
CheckingMethod::Size => {
for vector in self.files_with_identical_size.values() {
let tuple: (u64, usize, usize) = delete_files(vector, &self.delete_method, &mut self.text_messages, self.dryrun);
self.information.gained_space += tuple.0;
}
}
CheckingMethod::None => {
//Just do nothing
panic!("Checking method should never be none.");
}
}
Common::print_time(start_time, SystemTime::now(), "delete_files".to_string());
}
}
impl Default for DuplicateFinder {
fn default() -> Self {
Self::new()
}
}
impl DebugPrint for DuplicateFinder {
#[allow(dead_code)]
#[allow(unreachable_code)]
/// Debugging printing - only available on debug build
fn debug_print(&self) {
#[cfg(not(debug_assertions))]
{
return;
}
println!("---------------DEBUG PRINT---------------");
println!("### Information's");
println!("Errors size - {}", self.text_messages.errors.len());
println!("Warnings size - {}", self.text_messages.warnings.len());
println!("Messages size - {}", self.text_messages.messages.len());
println!(
"Number of duplicated files by size(in groups) - {} ({})",
self.information.number_of_duplicated_files_by_size, self.information.number_of_groups_by_size
);
println!(
"Number of duplicated files by hash(in groups) - {} ({})",
self.information.number_of_duplicated_files_by_hash, self.information.number_of_groups_by_hash
);
println!(
"Number of duplicated files by name(in groups) - {} ({})",
self.information.number_of_duplicated_files_by_name, self.information.number_of_groups_by_name
);
println!(
"Lost space by size - {} ({} bytes)",
self.information.lost_space_by_size.file_size(options::BINARY).unwrap(),
self.information.lost_space_by_size
);
println!(
"Lost space by hash - {} ({} bytes)",
self.information.lost_space_by_hash.file_size(options::BINARY).unwrap(),
self.information.lost_space_by_hash
);
println!(
"Gained space by removing duplicated entries - {} ({} bytes)",
self.information.gained_space.file_size(options::BINARY).unwrap(),
self.information.gained_space
);
println!("### Other");
println!("Files list size - {}", self.files_with_identical_size.len());
println!("Hashed Files list size - {}", self.files_with_identical_hashes.len());
println!("Excluded items - {:?}", self.excluded_items.items);
println!("Included directories - {:?}", self.directories.included_directories);
println!("Excluded directories - {:?}", self.directories.excluded_directories);
println!("Recursive search - {}", self.recursive_search);
println!("Minimum file size - {:?}", self.minimal_file_size);
println!("Checking Method - {:?}", self.check_method);
println!("Delete Method - {:?}", self.delete_method);
println!("-----------------------------------------");
}
}
impl SaveResults for DuplicateFinder {
fn save_results_to_file(&mut self, file_name: &str) -> bool {
let start_time: SystemTime = SystemTime::now();
let file_name: String = match file_name {
"" => "results.txt".to_string(),
k => k.to_string(),
};
let file_handler = match File::create(&file_name) {
Ok(t) => t,
Err(e) => {
self.text_messages.errors.push(format!("Failed to create file {}, reason {}", file_name, e));
return false;
}
};
let mut writer = BufWriter::new(file_handler);
if let Err(e) = writeln!(
writer,
"Results of searching {:?} with excluded directories {:?} and excluded items {:?}",
self.directories.included_directories, self.directories.excluded_directories, self.excluded_items.items
) {
self.text_messages.errors.push(format!("Failed to save results to file {}, reason {}", file_name, e));
return false;
}
match self.check_method {
CheckingMethod::Name => {
if !self.files_with_identical_names.is_empty() {
writeln!(
writer,
"-------------------------------------------------Files with same names-------------------------------------------------"
)
.unwrap();
writeln!(
writer,
"Found {} files in {} groups with same name(may have different content)",
self.information.number_of_duplicated_files_by_name, self.information.number_of_groups_by_name,
)
.unwrap();
for (name, vector) in self.files_with_identical_names.iter().rev() {
writeln!(writer, "Name - {} - {} files ", name, vector.len()).unwrap();
for j in vector {
writeln!(writer, "{}", j.path.display()).unwrap();
}
writeln!(writer).unwrap();
}
} else {
write!(writer, "Not found any files with same names.").unwrap();
}
}
CheckingMethod::Size => {
if !self.files_with_identical_size.is_empty() {
writeln!(
writer,
"-------------------------------------------------Files with same size-------------------------------------------------"
)
.unwrap();
writeln!(
writer,
"Found {} duplicated files which in {} groups which takes {}.",
self.information.number_of_duplicated_files_by_size,
self.information.number_of_groups_by_size,
self.information.lost_space_by_size.file_size(options::BINARY).unwrap()
)
.unwrap();
for (size, vector) in self.files_with_identical_size.iter().rev() {
write!(writer, "\n---- Size {} ({}) - {} files \n", size.file_size(options::BINARY).unwrap(), size, vector.len()).unwrap();
for file_entry in vector {
writeln!(writer, "{}", file_entry.path.display()).unwrap();
}
}
} else {
write!(writer, "Not found any duplicates.").unwrap();
}
}
CheckingMethod::Hash => {
if !self.files_with_identical_hashes.is_empty() {
writeln!(
writer,
"-------------------------------------------------Files with same hashes-------------------------------------------------"
)
.unwrap();
writeln!(
writer,
"Found {} duplicated files which in {} groups which takes {}.",
self.information.number_of_duplicated_files_by_hash,
self.information.number_of_groups_by_hash,
self.information.lost_space_by_hash.file_size(options::BINARY).unwrap()
)
.unwrap();
for (size, vectors_vector) in self.files_with_identical_hashes.iter().rev() {
for vector in vectors_vector {
writeln!(writer, "\n---- Size {} ({}) - {} files", size.file_size(options::BINARY).unwrap(), size, vector.len()).unwrap();
for file_entry in vector {
writeln!(writer, "{}", file_entry.path.display()).unwrap();
}
}
}
} else {
write!(writer, "Not found any duplicates.").unwrap();
}
}
CheckingMethod::None => {
panic!();
}
}
Common::print_time(start_time, SystemTime::now(), "save_results_to_file".to_string());
true
}
}
impl PrintResults for DuplicateFinder {
/// Print information's about duplicated entries
/// Only needed for CLI
fn print_results(&self) {
let start_time: SystemTime = SystemTime::now();
let mut number_of_files: u64 = 0;
let mut number_of_groups: u64 = 0;
match self.check_method {
CheckingMethod::Name => {
for i in &self.files_with_identical_names {
number_of_files += i.1.len() as u64;
number_of_groups += 1;
}
println!("Found {} files in {} groups with same name(may have different content)", number_of_files, number_of_groups,);
for (name, vector) in &self.files_with_identical_names {
println!("Name - {} - {} files ", name, vector.len());
for j in vector {
println!("{}", j.path.display());
}
println!();
}
}
CheckingMethod::Hash => {
for (_size, vector) in self.files_with_identical_hashes.iter() {
for j in vector {
number_of_files += j.len() as u64;
number_of_groups += 1;
}
}
println!(
"Found {} duplicated files in {} groups with same content which took {}:",
number_of_files,
number_of_groups,
self.information.lost_space_by_size.file_size(options::BINARY).unwrap()
);
for (size, vector) in self.files_with_identical_hashes.iter().rev() {
for j in vector {
println!("Size - {} ({}) - {} files ", size.file_size(options::BINARY).unwrap(), size, j.len());
for k in j {
println!("{}", k.path.display());
}
println!("----");
}
println!();
}
}
CheckingMethod::Size => {
for i in &self.files_with_identical_size {
number_of_files += i.1.len() as u64;
number_of_groups += 1;
}
println!(
"Found {} files in {} groups with same size(may have different content) which took {}:",
number_of_files,
number_of_groups,
self.information.lost_space_by_size.file_size(options::BINARY).unwrap()
);
for (size, vector) in &self.files_with_identical_size {
println!("Size - {} ({}) - {} files ", size.file_size(options::BINARY).unwrap(), size, vector.len());
for j in vector {
println!("{}", j.path.display());
}
println!();
}
}
CheckingMethod::None => {
panic!("Checking Method shouldn't be ever set to None");
}
}
Common::print_time(start_time, SystemTime::now(), "print_entries".to_string());
}
}
/// Functions to remove slice(vector) of files with provided method
/// Returns size of removed elements, number of deleted and failed to delete files and modified warning list
fn delete_files(vector: &[FileEntry], delete_method: &DeleteMethod, text_messages: &mut Messages, dryrun: bool) -> (u64, usize, usize) {
assert!(vector.len() > 1, "Vector length must be bigger than 1(This should be done in previous steps).");
let mut gained_space: u64 = 0;
let mut removed_files: usize = 0;
let mut failed_to_remove_files: usize = 0;
let mut values = vector.iter().enumerate();
let q_index = match delete_method {
DeleteMethod::OneOldest | DeleteMethod::AllExceptNewest => values.max_by(|(_, l), (_, r)| l.modified_date.cmp(&r.modified_date)),
DeleteMethod::OneNewest | DeleteMethod::AllExceptOldest | DeleteMethod::HardLink => values.min_by(|(_, l), (_, r)| l.modified_date.cmp(&r.modified_date)),
DeleteMethod::None => values.next(),
};
let q_index = q_index.map(|t| t.0).unwrap_or(0);
let n = match delete_method {
DeleteMethod::OneNewest | DeleteMethod::OneOldest => 1,
DeleteMethod::AllExceptNewest | DeleteMethod::AllExceptOldest | DeleteMethod::None | DeleteMethod::HardLink => usize::MAX,
};
for (index, file) in vector.iter().enumerate() {
if q_index == index {
continue;
} else if removed_files + failed_to_remove_files >= n {
break;
}
let r = match delete_method {
DeleteMethod::OneOldest | DeleteMethod::OneNewest | DeleteMethod::AllExceptOldest | DeleteMethod::AllExceptNewest => {
if dryrun {
Ok(Some(format!("Delete {}", file.path.display())))
} else {
fs::remove_file(&file.path).map(|_| None)
}
}
DeleteMethod::HardLink => {
let src = &vector[q_index].path;
if dryrun {
Ok(Some(format!("Replace file {} with hard link to {}", file.path.display(), src.display())))
} else {
make_hard_link(src, &file.path).map(|_| None)
}
}
DeleteMethod::None => Ok(None),
};
match r {
Err(e) => {
failed_to_remove_files += 1;
text_messages.warnings.push(format!("Failed to remove {} ({})", file.path.display(), e));
}
Ok(Some(msg)) => {
text_messages.messages.push(msg);
removed_files += 1;
gained_space += file.size;
}
Ok(None) => {
removed_files += 1;
gained_space += file.size;
}
}
}
(gained_space, removed_files, failed_to_remove_files)
}
#[cfg(target_family = "windows")]
fn filter_hard_links(vec_file_entry: &[FileEntry]) -> Vec<FileEntry> {
vec_file_entry.to_vec()
}
#[cfg(target_family = "unix")]
fn filter_hard_links(vec_file_entry: &[FileEntry]) -> Vec<FileEntry> {
let mut inodes: HashSet<u64> = HashSet::with_capacity(vec_file_entry.len());
let mut identical: Vec<FileEntry> = Vec::with_capacity(vec_file_entry.len());
for f in vec_file_entry {
if let Ok(meta) = fs::metadata(&f.path) {
if !inodes.insert(meta.ino()) {
continue;
}
}
identical.push(f.clone());
}
identical
}
pub fn make_hard_link(src: &Path, dst: &Path) -> io::Result<()> {
let dst_dir = dst.parent().ok_or_else(|| Error::new(ErrorKind::Other, "No parent"))?;
let temp = tempfile::Builder::new().tempfile_in(dst_dir)?;
fs::rename(dst, temp.path())?;
let result = fs::hard_link(src, dst);
if result.is_err() {
fs::rename(temp.path(), dst)?;
}
result
}
pub fn save_hashes_to_file(hashmap: &BTreeMap<String, FileEntry>, text_messages: &mut Messages, type_of_hash: &HashType, is_prehash: bool, minimal_cache_file_size: u64) {
if let Some(proj_dirs) = ProjectDirs::from("pl", "Qarmin", "Czkawka") {
let cache_dir = PathBuf::from(proj_dirs.cache_dir());
if cache_dir.exists() {
if !cache_dir.is_dir() {
text_messages.messages.push(format!("Config dir {} is a file!", cache_dir.display()));
return;
}
} else if let Err(e) = fs::create_dir_all(&cache_dir) {
text_messages.messages.push(format!("Cannot create config dir {}, reason {}", cache_dir.display(), e));
return;
}
let cache_file = cache_dir.join(get_file_hash_name(type_of_hash, is_prehash).as_str());
let file_handler = match OpenOptions::new().truncate(true).write(true).create(true).open(&cache_file) {
Ok(t) => t,
Err(e) => {
text_messages
.messages
.push(format!("Cannot create or open cache file {}, reason {}", cache_file.display(), e));
return;
}
};
let mut writer = BufWriter::new(file_handler);
for file_entry in hashmap.values() {
// Only cache bigger than 5MB files
if file_entry.size >= minimal_cache_file_size {
let string: String = format!("{}//{}//{}//{}", file_entry.path.display(), file_entry.size, file_entry.modified_date, file_entry.hash);
if let Err(e) = writeln!(writer, "{}", string) {
text_messages
.messages
.push(format!("Failed to save some data to cache file {}, reason {}", cache_file.display(), e));
return;
};
}
}
}
}
pub trait MyHasher {
fn update(&mut self, bytes: &[u8]);
fn finalize(&self) -> String;
}
fn hash_calculation(buffer: &mut [u8], file_entry: &FileEntry, hash_type: &HashType, limit: u64) -> Result<String, String> {
let mut file_handler = match File::open(&file_entry.path) {
Ok(t) => t,
Err(e) => return Err(format!("Unable to check hash of file {}, reason {}", file_entry.path.display(), e)),
};
let hasher = &mut *hash_type.hasher();
let mut current_file_read_bytes: u64 = 0;
loop {
let n = match file_handler.read(buffer) {
Ok(0) => break,
Ok(t) => t,
Err(e) => return Err(format!("Error happened when checking hash of file {}, reason {}", file_entry.path.display(), e)),
};
current_file_read_bytes += n as u64;
hasher.update(&buffer[..n]);
if current_file_read_bytes >= limit {
break;
}
}
Ok(hasher.finalize())
}
fn get_file_hash_name(type_of_hash: &HashType, is_prehash: bool) -> String {
let prehash_str = if is_prehash { "_prehash" } else { "" };
format!("cache_duplicates_{:?}{}.txt", type_of_hash, prehash_str)
}
pub fn load_hashes_from_file(text_messages: &mut Messages, delete_outdated_cache: bool, type_of_hash: &HashType, is_prehash: bool) -> Option<BTreeMap<u64, Vec<FileEntry>>> {
if let Some(proj_dirs) = ProjectDirs::from("pl", "Qarmin", "Czkawka") {
let cache_dir = PathBuf::from(proj_dirs.cache_dir());
let cache_file = cache_dir.join(get_file_hash_name(type_of_hash, is_prehash).as_str());
let file_handler = match OpenOptions::new().read(true).open(&cache_file) {
Ok(t) => t,
Err(_inspected) => {
return None;
}
};
let reader = BufReader::new(file_handler);
let mut hashmap_loaded_entries: BTreeMap<u64, Vec<FileEntry>> = Default::default();
// Read the file line by line using the lines() iterator from std::io::BufRead.
for (index, line) in reader.lines().enumerate() {
let line = match line {
Ok(t) => t,
Err(e) => {
text_messages
.warnings
.push(format!("Failed to load line number {} from cache file {}, reason {}", index + 1, cache_file.display(), e));
return None;
}
};
let uuu = line.split("//").collect::<Vec<&str>>();
if uuu.len() != 4 {
text_messages.warnings.push(format!(
"Found invalid data(too much or too low amount of data) in line {} - ({}) in cache file {}",
index + 1,
line,
cache_file.display()
));
continue;
}
// Don't load cache data if destination file not exists
if !delete_outdated_cache || Path::new(uuu[0]).exists() {
let file_entry = FileEntry {
path: PathBuf::from(uuu[0]),
size: match uuu[1].parse::<u64>() {
Ok(t) => t,
Err(e) => {
text_messages.warnings.push(format!(
"Found invalid size value in line {} - ({}) in cache file {}, reason {}",
index + 1,
line,
cache_file.display(),
e
));
continue;
}
},
modified_date: match uuu[2].parse::<u64>() {
Ok(t) => t,
Err(e) => {
text_messages.warnings.push(format!(
"Found invalid modified date value in line {} - ({}) in cache file {}, reason {}",
index + 1,
line,
cache_file.display(),
e
));
continue;
}
},
hash: uuu[3].to_string(),
};
hashmap_loaded_entries.entry(file_entry.size).or_insert_with(Vec::new);
hashmap_loaded_entries.get_mut(&file_entry.size).unwrap().push(file_entry);
}
}
return Some(hashmap_loaded_entries);
}
text_messages.messages.push("Cannot find or open system config dir to save cache file".to_string());
None
}
impl MyHasher for blake3::Hasher {
fn update(&mut self, bytes: &[u8]) {
self.update(bytes);
}
fn finalize(&self) -> String {
self.finalize().to_hex().to_string()
}
}
impl MyHasher for crc32fast::Hasher {
fn update(&mut self, bytes: &[u8]) {
self.write(bytes);
}
fn finalize(&self) -> String {
self.finish().to_string()
}
}
impl MyHasher for xxhash_rust::xxh3::Xxh3 {
fn update(&mut self, bytes: &[u8]) {
self.write(bytes);
}
fn finalize(&self) -> String {
self.finish().to_string()
}
}
#[cfg(test)]
mod tests {
use std::fs::{read_dir, File};
use std::io;
#[cfg(target_family = "windows")]
use std::os::fs::MetadataExt;
#[cfg(target_family = "unix")]
use std::os::unix::fs::MetadataExt;
use super::*;
#[cfg(target_family = "unix")]
fn assert_inode(before: &Metadata, after: &Metadata) {
assert_eq!(before.ino(), after.ino());
}
#[cfg(target_family = "windows")]
fn assert_inode(_: &Metadata, _: &Metadata) {}
#[test]
fn test_make_hard_link() -> io::Result<()> {
let dir = tempfile::Builder::new().tempdir()?;
let (src, dst) = (dir.path().join("a"), dir.path().join("b"));
File::create(&src)?;
let metadata = fs::metadata(&src)?;
File::create(&dst)?;
make_hard_link(&src, &dst)?;
assert_inode(&metadata, &fs::metadata(&dst)?);
assert_eq!(metadata.permissions(), fs::metadata(&dst)?.permissions());
assert_eq!(metadata.modified()?, fs::metadata(&dst)?.modified()?);
assert_inode(&metadata, &fs::metadata(&src)?);
assert_eq!(metadata.permissions(), fs::metadata(&src)?.permissions());
assert_eq!(metadata.modified()?, fs::metadata(&src)?.modified()?);
let mut actual = read_dir(&dir)?.map(|e| e.unwrap().path()).collect::<Vec<PathBuf>>();
actual.sort();
assert_eq!(vec![src, dst], actual);
Ok(())
}
#[test]
fn test_make_hard_link_fails() -> io::Result<()> {
let dir = tempfile::Builder::new().tempdir()?;
let (src, dst) = (dir.path().join("a"), dir.path().join("b"));
File::create(&dst)?;
let metadata = fs::metadata(&dst)?;
assert!(make_hard_link(&src, &dst).is_err());
assert_inode(&metadata, &fs::metadata(&dst)?);
assert_eq!(metadata.permissions(), fs::metadata(&dst)?.permissions());
assert_eq!(metadata.modified()?, fs::metadata(&dst)?.modified()?);
assert_eq!(vec![dst], read_dir(&dir)?.map(|e| e.unwrap().path()).collect::<Vec<PathBuf>>());
Ok(())
}
#[test]
fn test_filter_hard_links_empty() {
let expected: Vec<FileEntry> = Default::default();
assert_eq!(expected, filter_hard_links(&[]));
}
#[cfg(target_family = "unix")]
#[test]
fn test_filter_hard_links() -> io::Result<()> {
let dir = tempfile::Builder::new().tempdir()?;
let (src, dst) = (dir.path().join("a"), dir.path().join("b"));
File::create(&src)?;
fs::hard_link(src.clone(), dst.clone())?;
let e1 = FileEntry { path: src, ..Default::default() };
let e2 = FileEntry { path: dst, ..Default::default() };
let actual = filter_hard_links(&[e1.clone(), e2]);
assert_eq!(vec![e1], actual);
Ok(())
}
#[test]
fn test_filter_hard_links_regular_files() -> io::Result<()> {
let dir = tempfile::Builder::new().tempdir()?;
let (src, dst) = (dir.path().join("a"), dir.path().join("b"));
File::create(&src)?;
File::create(&dst)?;
let e1 = FileEntry { path: src, ..Default::default() };
let e2 = FileEntry { path: dst, ..Default::default() };
let actual = filter_hard_links(&[e1.clone(), e2.clone()]);
assert_eq!(vec![e1, e2], actual);
Ok(())
}
#[test]
fn test_hash_calculation() -> io::Result<()> {
let dir = tempfile::Builder::new().tempdir()?;
let mut buf = [0u8; 1 << 10];
let src = dir.path().join("a");
let mut file = File::create(&src)?;
file.write_all(b"aa")?;
let e = FileEntry { path: src, ..Default::default() };
let r = hash_calculation(&mut buf, &e, &HashType::Blake3, 0).unwrap();
assert!(!r.is_empty());
Ok(())
}
#[test]
fn test_hash_calculation_limit() -> io::Result<()> {
let dir = tempfile::Builder::new().tempdir()?;
let mut buf = [0u8; 1];
let src = dir.path().join("a");
let mut file = File::create(&src)?;
file.write_all(b"aa")?;
let e = FileEntry { path: src, ..Default::default() };
let r1 = hash_calculation(&mut buf, &e, &HashType::Blake3, 1).unwrap();
let r2 = hash_calculation(&mut buf, &e, &HashType::Blake3, 2).unwrap();
let r3 = hash_calculation(&mut buf, &e, &HashType::Blake3, u64::MAX).unwrap();
assert_ne!(r1, r2);
assert_eq!(r2, r3);
Ok(())
}
#[test]
fn test_hash_calculation_invalid_file() -> io::Result<()> {
let dir = tempfile::Builder::new().tempdir()?;
let mut buf = [0u8; 1 << 10];
let src = dir.path().join("a");
let e = FileEntry { path: src, ..Default::default() };
let r = hash_calculation(&mut buf, &e, &HashType::Blake3, 0).unwrap_err();
assert!(!r.is_empty());
Ok(())
}
}