use std ::fs ::{ File , Metadata } ;
use std ::io ::prelude ::* ;
use std ::io ::BufWriter ;
use std ::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 , thread } ;
use crossbeam_channel ::Receiver ;
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 current_stage : u8 ,
pub max_stage : u8 ,
pub files_checked : usize ,
}
#[ derive(Eq, PartialEq, Clone, Debug) ]
pub enum DeleteMethod {
None ,
Delete ,
}
#[ derive(Clone) ]
pub struct FileEntry {
pub path : PathBuf ,
pub modified_date : u64 ,
}
/// Info struck with helpful information's about results
#[ derive(Default) ]
pub struct Info {
pub number_of_empty_files : usize ,
pub number_of_removed_files : usize ,
pub number_of_failed_to_remove_files : usize ,
}
impl Info {
pub fn new ( ) -> Self {
Default ::default ( )
}
}
/// Struct with required information's to work
pub struct EmptyFiles {
text_messages : Messages ,
information : Info ,
empty_files : Vec < FileEntry > ,
directories : Directories ,
allowed_extensions : Extensions ,
excluded_items : ExcludedItems ,
recursive_search : bool ,
delete_method : DeleteMethod ,
stopped_search : bool ,
}
impl EmptyFiles {
pub fn new ( ) -> Self {
Self {
text_messages : Messages ::new ( ) ,
information : Info ::new ( ) ,
recursive_search : true ,
allowed_extensions : Extensions ::new ( ) ,
directories : Directories ::new ( ) ,
excluded_items : ExcludedItems ::new ( ) ,
empty_files : vec ! [ ] ,
delete_method : DeleteMethod ::None ,
stopped_search : false ,
}
}
/// Finding empty files, save results to internal struct variables
pub fn find_empty_files ( & 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 ) ;
if ! self . check_files ( stop_receiver , progress_sender ) {
self . stopped_search = true ;
return ;
}
self . delete_files ( ) ;
self . debug_print ( ) ;
}
pub fn get_stopped_search ( & self ) -> bool {
self . stopped_search
}
pub const fn get_empty_files ( & self ) -> & Vec < FileEntry > {
& self . empty_files
}
pub const fn get_text_messages ( & self ) -> & Messages {
& self . text_messages
}
pub const fn get_information ( & self ) -> & Info {
& self . information
}
pub fn set_delete_method ( & mut self , delete_method : DeleteMethod ) {
self . delete_method = delete_method ;
}
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 ) ;
}
/// Check files for any with size == 0
fn check_files ( & 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 {
current_stage : 0 ,
max_stage : 0 ,
files_checked : atomic_file_counter . load ( Ordering ::Relaxed ) as usize ,
} )
. 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 metadata . len ( ) = = 0 {
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 ( ) ,
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
}
} ,
} ;
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 . empty_files . push ( fe ) ;
}
}
}
self . information . number_of_empty_files = self . empty_files . len ( ) ;
// End thread which send info to gui
progress_thread_run . store ( false , Ordering ::Relaxed ) ;
progress_thread_handle . join ( ) . unwrap ( ) ;
Common ::print_time ( start_time , SystemTime ::now ( ) , "check_files_size" . to_string ( ) ) ;
true
}
/// Function to delete files, from filed Vector
fn delete_files ( & mut self ) {
let start_time : SystemTime = SystemTime ::now ( ) ;
match self . delete_method {
DeleteMethod ::Delete = > {
for file_entry in & self . empty_files {
if fs ::remove_file ( file_entry . path . clone ( ) ) . is_err ( ) {
self . text_messages . warnings . push ( file_entry . path . display ( ) . to_string ( ) ) ;
}
}
}
DeleteMethod ::None = > {
//Just do nothing
}
}
Common ::print_time ( start_time , SystemTime ::now ( ) , "delete_files" . to_string ( ) ) ;
}
}
impl Default for EmptyFiles {
fn default ( ) -> Self {
Self ::new ( )
}
}
impl DebugPrint for EmptyFiles {
#[ 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 removed files - {}" , self . information . number_of_removed_files ) ;
println! ( "Number of failed to remove files - {}" , self . information . number_of_failed_to_remove_files ) ;
println! ( "### Other" ) ;
println! ( "Empty list size - {}" , self . empty_files . 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! ( "Delete Method - {:?}" , self . delete_method ) ;
println! ( "-----------------------------------------" ) ;
}
}
impl SaveResults for EmptyFiles {
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 ;
}
if ! self . empty_files . is_empty ( ) {
writeln! ( writer , "Found {} empty files." , self . information . number_of_empty_files ) . unwrap ( ) ;
for file_entry in self . empty_files . iter ( ) {
writeln! ( writer , "{}" , file_entry . path . display ( ) ) . unwrap ( ) ;
}
} else {
write! ( writer , "Not found any empty files." ) . unwrap ( ) ;
}
Common ::print_time ( start_time , SystemTime ::now ( ) , "save_results_to_file" . to_string ( ) ) ;
true
}
}
impl PrintResults for EmptyFiles {
/// Print information's about duplicated entries
/// Only needed for CLI
fn print_results ( & self ) {
let start_time : SystemTime = SystemTime ::now ( ) ;
println! ( "Found {} empty files.\n" , self . information . number_of_empty_files ) ;
for file_entry in self . empty_files . iter ( ) {
println! ( "{}" , file_entry . path . display ( ) ) ;
}
Common ::print_time ( start_time , SystemTime ::now ( ) , "print_entries" . to_string ( ) ) ;
}
}