file_services Namespace Reference

file services namespace More...

Classes
class	FileService
	this class handles file/directory management and uses dbManager to perform calls More...

Enumerations
enum	dbUsageStrategy { use , create }
enum	dataInsetionStrategy { PreserveOld , ReplaceWithNew }
enum	dataRetrievalStrategy { Persist , Remove }
enum	rootDirectoryHandlingStrategy { NoCreateMain , CreateMain }

Functions
tl::expected< std::string, int >	checkFileExistence (std::string_view filePath)
tl::expected< std::string, int >	checkDirectoryExistence (std::string_view dirPath)
template<typename T , typename A >
requires std::is_same_v< T, A > std::is_same_v< T, typename std::remove_const< A >::type > std::is_same_v< A, typename std::remove_const< T >::type > int	compareBlock (size_t size, T *arr, A *arr2)
std::array< size_t, 4 >	compareFiles (const fs::path &file1, const fs::path &file2, size_t segmentSize)
std::array< size_t, 4 >	compareDirectories (const fs::path &file1, const fs::path &file2, size_t segmentSize)
fs::path	getNormalAbs (const fs::path &path)
std::filesystem::path	getNormalAbs (const std::filesystem::path &path)

Detailed Description

file services namespace

Enumeration Type Documentation

dataInsetionStrategy

enum file_services::dataInsetionStrategy

File/directories insertion startegy

Enumerator
PreserveOld	will ignore files that already exist
ReplaceWithNew	will replace file contents

dataRetrievalStrategy

enum file_services::dataRetrievalStrategy

File/directory handling strategy during load process

Enumerator
Persist	will leave data as is
Remove	will delete requested data from database

dbUsageStrategy

enum file_services::dbUsageStrategy

Database usage strategy

Enumerator
use	if database exist connection will be established
create	create new database if it doesn't exist

rootDirectoryHandlingStrategy

enum file_services::rootDirectoryHandlingStrategy

Defines what will be done if destination directory does not exist

Enumerator
NoCreateMain	will return an error code
CreateMain	will create this directory using create_directories

Function Documentation

checkDirectoryExistence()

tl::expected< std::string, int > file_services::checkDirectoryExistence

(

std::string_view

dirPath

)

This function checks existence of a canonical directory path for dir_path

Parameters

dirPath

Returns

canonical dirPath or error code

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checkFileExistence()

tl::expected< std::string, int > file_services::checkFileExistence

(

std::string_view

filePath

)

This function checks existence of a canonical file path for file_path

Parameters

filePath

Returns

canonical filePath or error code

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compareBlock()

template<typename T , typename A >

requires std::is_same_v<T, A> std::is_same_v<T, typename std::remove_const<A>::type> std::is_same_v<A, typename std::remove_const<T>::type> int file_services::compareBlock	(	size_t	size,
		T *	arr,
		A *	arr2
	)

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compareDirectories()

std::array< size_t, 4 > file_services::compareDirectories	(	const fs::path &	file1,
		const fs::path &	file2,
		size_t	segmentSize
	)

Compares directory contents

Parameters

file1
file2
segmentSize	size of blocks to check

Returns

{e1,e2,e3,e4}

e1 - number of bytes that differ

e2 - number of segments that differ

e3 - total number of segments

e4 - total number of bytes

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compareFiles()

std::array< size_t, 4 > file_services::compareFiles	(	const fs::path &	file1,
		const fs::path &	file2,
		size_t	segmentSize
	)

Compares to file paths segment by segment

Parameters

file1
file2
segmentSize	size of blocks to check

Returns

{e1,e2,e3,e4}

e1 - number of bytes that differ

e2 - number of segments that differ

e3 - total number of segments

e4 - total number of bytes

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getNormalAbs() [1/2]

fs::path file_services::getNormalAbs

(

const fs::path &

path

)

Calculates lexically normal absolute path

Parameters

path

Returns

lexically normal absolute path

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getNormalAbs() [2/2]

std::filesystem::path file_services::getNormalAbs

(

const std::filesystem::path &

path

)