use std ::fs ;
use std ::fs ::{ File , Metadata } ;
use std ::io ::prelude ::* ;
use std ::time ::{ SystemTime , UNIX_EPOCH } ;
use crate ::common ::Common ;
use crate ::common_directory ::Directories ;
use crate ::common_items ::ExcludedItems ;
use crate ::common_messages ::Messages ;
use crate ::common_traits ::* ;
#[ derive(Eq, PartialEq, Clone, Debug) ]
pub enum DeleteMethod {
None ,
Delete ,
}
#[ derive(Clone) ]
pub struct FileEntry {
pub path : String ,
pub modified_date : u64 ,
}
/// Info struck with helpful information's about results
#[ derive(Default) ]
pub struct Info {
pub number_of_checked_files : usize ,
pub number_of_checked_folders : usize ,
pub number_of_ignored_files : usize ,
pub number_of_ignored_things : usize ,
pub number_of_temporary_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 Temporary {
text_messages : Messages ,
information : Info ,
temporary_files : Vec < FileEntry > ,
directories : Directories ,
excluded_items : ExcludedItems ,
recursive_search : bool ,
delete_method : DeleteMethod ,
}
impl Temporary {
pub fn new ( ) -> Self {
Self {
text_messages : Messages ::new ( ) ,
information : Info ::new ( ) ,
recursive_search : true ,
directories : Directories ::new ( ) ,
excluded_items : ExcludedItems ::new ( ) ,
delete_method : DeleteMethod ::None ,
temporary_files : vec ! [ ] ,
}
}
/// Finding temporary files, save results to internal struct variables
pub fn find_temporary_files ( & mut self ) {
self . directories . optimize_directories ( self . recursive_search , & mut self . text_messages ) ;
self . check_files ( ) ;
self . delete_files ( ) ;
self . debug_print ( ) ;
}
pub const fn get_temporary_files ( & self ) -> & Vec < FileEntry > {
& self . temporary_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 : String ) -> bool {
self . directories . set_included_directory ( included_directory , & mut self . text_messages )
}
pub fn set_excluded_directory ( & mut self , excluded_directory : String ) {
self . directories . set_excluded_directory ( excluded_directory , & mut self . text_messages ) ;
}
pub fn set_excluded_items ( & mut self , excluded_items : String ) {
self . excluded_items . set_excluded_items ( excluded_items , & mut self . text_messages ) ;
}
fn check_files ( & mut self ) {
let start_time : SystemTime = SystemTime ::now ( ) ;
let mut folders_to_check : Vec < String > = 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 . to_string ( ) ) ;
}
self . information . number_of_checked_folders + = folders_to_check . len ( ) ;
let mut current_folder : String ;
let mut next_folder : String ;
while ! folders_to_check . is_empty ( ) {
current_folder = folders_to_check . pop ( ) . unwrap ( ) ;
// Read current dir, if permission are denied just go to next
let read_dir = match fs ::read_dir ( & current_folder ) {
Ok ( t ) = > t ,
Err ( _ ) = > {
self . text_messages . warnings . push ( "Cannot open dir " . to_string ( ) + current_folder . as_str ( ) ) ;
continue ;
} // Permissions denied
} ;
// Check every sub folder/file/link etc.
' dir : for entry in read_dir {
let entry_data = match entry {
Ok ( t ) = > t ,
Err ( _ ) = > {
self . text_messages . warnings . push ( "Cannot read entry in dir " . to_string ( ) + current_folder . as_str ( ) ) ;
continue ;
} //Permissions denied
} ;
let metadata : Metadata = match entry_data . metadata ( ) {
Ok ( t ) = > t ,
Err ( _ ) = > {
self . text_messages . warnings . push ( "Cannot read metadata in dir " . to_string ( ) + current_folder . as_str ( ) ) ;
continue ;
} //Permissions denied
} ;
if metadata . is_dir ( ) {
self . information . number_of_checked_folders + = 1 ;
// if entry_data.file_name().into_string().is_err() { // Probably this can be removed, if crash still will be happens, then uncomment this line
// self.text_messages.warnings.push("Cannot read folder name in dir ".to_string() + current_folder.as_str());
// continue; // Permissions denied
// }
if ! self . recursive_search {
continue ;
}
next_folder = "" . to_owned ( )
+ & current_folder
+ match & entry_data . file_name ( ) . into_string ( ) {
Ok ( t ) = > t ,
Err ( _ ) = > continue ,
}
+ "/" ;
for ed in & self . directories . excluded_directories {
if next_folder = = * ed {
continue 'dir ;
}
}
for expression in & self . excluded_items . items {
if Common ::regex_check ( expression , & next_folder ) {
continue 'dir ;
}
}
folders_to_check . push ( next_folder ) ;
} else if metadata . is_file ( ) {
let file_name_lowercase : String = match entry_data . file_name ( ) . into_string ( ) {
Ok ( t ) = > t ,
Err ( _ ) = > continue ,
}
. to_lowercase ( ) ;
// Temporary files which needs to have dot in name(not sure if exists without dot)
let temporary_with_dot = [ "#" , "thumbs.db" , ".bak" , "~" , ".tmp" , ".temp" , ".ds_store" , ".crdownload" , ".part" , ".cache" , ".dmp" , ".download" , ".partial" ] ;
if ! file_name_lowercase . contains ( '.' ) | | ! temporary_with_dot . iter ( ) . any ( | f | file_name_lowercase . ends_with ( f ) ) {
self . information . number_of_ignored_files + = 1 ;
continue 'dir ;
}
// Checking files
let current_file_name = "" . to_owned ( )
+ & current_folder
+ match & entry_data . file_name ( ) . into_string ( ) {
Ok ( t ) = > t ,
Err ( _ ) = > continue ,
} ;
// Checking expressions
for expression in & self . excluded_items . items {
if Common ::regex_check ( expression , & current_file_name ) {
continue 'dir ;
}
}
// Creating new file entry
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 ( _ ) = > {
self . text_messages . warnings . push ( format! ( "File {} seems to be modified before Unix Epoch." , current_file_name ) ) ;
0
}
} ,
Err ( _ ) = > {
self . text_messages . warnings . push ( "Unable to get modification date from file " . to_string ( ) + current_file_name . as_str ( ) ) ;
continue ;
} // Permissions Denied
} ,
} ;
// Adding files to Vector
self . temporary_files . push ( fe ) ;
self . information . number_of_checked_files + = 1 ;
} else {
// Probably this is symbolic links so we are free to ignore this
self . information . number_of_ignored_things + = 1 ;
}
}
}
self . information . number_of_temporary_files = self . temporary_files . len ( ) ;
Common ::print_time ( start_time , SystemTime ::now ( ) , "check_files_size" . to_string ( ) ) ;
}
/// 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 . temporary_files {
if fs ::remove_file ( file_entry . path . clone ( ) ) . is_err ( ) {
self . text_messages . warnings . push ( file_entry . path . clone ( ) ) ;
}
}
}
DeleteMethod ::None = > {
//Just do nothing
}
}
Common ::print_time ( start_time , SystemTime ::now ( ) , "delete_files" . to_string ( ) ) ;
}
}
impl Default for Temporary {
fn default ( ) -> Self {
Self ::new ( )
}
}
impl DebugPrint for Temporary {
#[ allow(dead_code) ]
#[ allow(unreachable_code) ]
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 checked files - {}" , self . information . number_of_checked_files ) ;
println! ( "Number of checked folders - {}" , self . information . number_of_checked_folders ) ;
println! ( "Number of ignored files - {}" , self . information . number_of_ignored_files ) ;
println! ( "Number of ignored things(like symbolic links) - {}" , self . information . number_of_ignored_things ) ;
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! ( "Temporary list size - {}" , self . temporary_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 . to_string ( ) ) ;
println! ( "Delete Method - {:?}" , self . delete_method ) ;
println! ( "-----------------------------------------" ) ;
}
}
impl SaveResults for Temporary {
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 mut file = match File ::create ( & file_name ) {
Ok ( t ) = > t ,
Err ( _ ) = > {
self . text_messages . errors . push ( format! ( "Failed to create file {}" , file_name ) ) ;
return false ;
}
} ;
match file . write_all (
format! (
"Results of searching {:?} with excluded directories {:?} and excluded items {:?}\n" ,
self . directories . included_directories , self . directories . excluded_directories , self . excluded_items . items
)
. as_bytes ( ) ,
) {
Ok ( _ ) = > ( ) ,
Err ( _ ) = > {
self . text_messages . errors . push ( format! ( "Failed to save results to file {}" , file_name ) ) ;
return false ;
}
}
if ! self . temporary_files . is_empty ( ) {
file . write_all ( format! ( "Found {} temporary files.\n" , self . information . number_of_temporary_files ) . as_bytes ( ) ) . unwrap ( ) ;
for file_entry in self . temporary_files . iter ( ) {
file . write_all ( format! ( "{} \n" , file_entry . path ) . as_bytes ( ) ) . unwrap ( ) ;
}
} else {
file . write_all ( b" Not found any temporary files. " ) . unwrap ( ) ;
}
Common ::print_time ( start_time , SystemTime ::now ( ) , "save_results_to_file" . to_string ( ) ) ;
true
}
}
impl PrintResults for Temporary {
fn print_results ( & self ) {
let start_time : SystemTime = SystemTime ::now ( ) ;
println! ( "Found {} temporary files.\n" , self . information . number_of_temporary_files ) ;
for file_entry in self . temporary_files . iter ( ) {
println! ( "{}" , file_entry . path ) ;
}
Common ::print_time ( start_time , SystemTime ::now ( ) , "print_entries" . to_string ( ) ) ;
}
}