helpers

Documentation

Overview

Package helpers provides generic helper functions with no external imports

Package helpers provides generic helper functions with no external imports

Index

• func Filter[T any](ss []T, test func(T) bool) (r []T)
• func Find[T any](ss []T, test func(T) bool) (r T)
• func GetCRCHash(text string) uint32
• func GetCryptoHash(data io.ReadCloser, hashName crypto.Hash) (string, error)
• func Insert[T any](slice []T, index int, element T) []T
• func MatchRegex(regex *regexp.Regexp, str string) (func(string) string, error)
• func MergeMap[T any](m1, m2 map[string]T) (r map[string]T)
• func MergeMapRecursive(m1, m2 map[string]interface{}) (r map[string]interface{})
• func RemoveMatches[T any](ss []T, test func(T) bool) (r []T)
• func Retry(fn func() error, retries int, delay time.Duration) (err error)
• func Reverse[T any](s []T) (r []T)
• func SliceContains[T comparable](s []T, e T) bool
• func TransformMapKeys[T any](m map[string]T, transform func(string) string) (r map[string]T)
• func Unique[T comparable](s []T) (r []T)

Functions

func Filter

func Filter[T any](ss []T, test func(T) bool) (r []T)

Filter returns a new slice with only the elements that pass the test.

func Find

func Find[T any](ss []T, test func(T) bool) (r T)

Find returns the first element that passes the test.

func GetCRCHash

func GetCRCHash(text string) uint32

GetCRCHash returns the computed CRC32 Sum of a given string

func GetCryptoHash

func GetCryptoHash(data io.ReadCloser, hashName crypto.Hash) (string, error)

GetCryptoHash returns the computed SHA256 Sum of a given file

func Insert

func Insert[T any](slice []T, index int, element T) []T

Insert returns a new slice with the element inserted at the given index.

func MatchRegex

func MatchRegex(regex *regexp.Regexp, str string) (func(string) string, error)

MatchRegex wraps a get function around a substring match.

func MergeMap

func MergeMap[T any](m1, m2 map[string]T) (r map[string]T)

MergeMap merges map m2 with m1 overwriting common values with m2's values.

func MergeMapRecursive

func MergeMapRecursive(m1, m2 map[string]interface{}) (r map[string]interface{})

MergeMapRecursive recursively (nestedly) merges map m2 with m1 overwriting common values with m2's values.

func RemoveMatches

func RemoveMatches[T any](ss []T, test func(T) bool) (r []T)

RemoveMatches removes the given element from the slice that matches the test.

func Retry

func Retry(fn func() error, retries int, delay time.Duration) (err error)

Retry will retry a function until it succeeds or the timeout is reached, timeout == retries * delay.

func Reverse

func Reverse[T any](s []T) (r []T)

Reverse returns a new slice with the elements in reverse order.

func SliceContains

func SliceContains[T comparable](s []T, e T) bool

SliceContains returns true if the given element is in the slice.

func TransformMapKeys

func TransformMapKeys[T any](m map[string]T, transform func(string) string) (r map[string]T)

TransformMapKeys takes a map and transforms its keys using the provided function.

func Unique

func Unique[T comparable](s []T) (r []T)

Unique returns a new slice with only unique elements.