utilz

package module
v0.1.3 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Feb 14, 2022 License: MIT Imports: 45 Imported by: 30

Documentation

Index

Constants

View Source 
const (
	Checkmark = "✓"
	XMark     = "✗"
)

TODO: number to color TODO: string to color TODO: short readable hash

View Source 
const (
	FilenameTimeFormat = "Mon02Jan2006_15.04.05"
)

Variables

View Source 
var (
	DebugPrefix   string = "[DEBU]"
	InfoPrefix    string = "[INFO]"
	SuccessPrefix string = Lime("[SUCC]")
	WarnPrefix    string = Yellow("[WARN]")
	ErrorPrefix   string = RedBG("[ERRO]")
	FatalPrefix   string = RedBG("[FATAL]")
)
View Source 
var ConstantPredeterminedLength = 60
View Source 
var DefaultLogParameters = []LogHeaderParameter{

	LogMessageNumber,
	LogParamTimestamp,

	LogElapsedFromStart,
}
View Source 
var ErrNotDir = errors.New("path is not a directory")
View Source 
var (
	LogIncludeLevel bool = true
)

Functions

func AddNumericSuffixIfFileExists 

func AddNumericSuffixIfFileExists(filePath string) string

AddNumericSuffixIfFileExists: if the specified file exists, a numeric suffix is added to the name of the file, right before the extension; numeric suffixes are tried incrementally until a non-existing file is idedntified; the complete filepath is returned (no file is created at this stage).

func AllFalse 

func AllFalse(bools ...bool) bool

func AllTrue 

func AllTrue(bools ...bool) bool

func AnyIsEmptyString 

func AnyIsEmptyString(slice ...string) bool

func Atoi 

func Atoi(s string) (int, error)

func BellSound 

func BellSound()

func Black 

func Black(s string) string

func BlackBG 

func BlackBG(s string) string

func Blacklist 

func Blacklist(items []string, blacklist []string) []string

Blacklist filters out elements from the `items` slice that are also present in the `blacklist` slice; a simple == comparison is done.

func BlacklistGlob 

func BlacklistGlob(items []string, blacklist []string) []string

BlacklistGlob filters out elements from the `items` slice that match any pattern from the `blacklist` slice; a glob comparison is done.

func Bold 

func Bold(message string) string

func CLIAskPassword 

func CLIAskPassword() ([]byte, error)

CLIAskPassword prompts the user for a password input fro the CLI

func CLIAskString 

func CLIAskString() (string, error)

CLIAskString prompts the user for a string input from the CLI

func CLIAskYesNo 

func CLIAskYesNo(message string) (bool, error)

CLIAskYesNo parses an input from the terminal and returns whether the response is affirmative or negative.

func CLIMustConfirmYes 

func CLIMustConfirmYes(message string)

func Change 

func Change(before int64, after int64) float64

Change calculate what is the percentage increase/decrease from [number1] to [number2] For example 60 is 200% increase from 20 It returns result as float64

func CloneSlice 

func CloneSlice(sl []string) []string

func Colorize 

func Colorize(str string) string

func ColorizeBG 

func ColorizeBG(str string) string

func CombineErrors 

func CombineErrors(errs ...error) error

func ConcatBytesFromStrings 

func ConcatBytesFromStrings(strs ...string) ([]byte, error)

ConcatBytesFromStrings concatenates multiple strings into one array of bytes

func ConstantLength 

func ConstantLength(s string) string

func CountLines 

func CountLines(r io.Reader) (int, error)

func Countdown 

func Countdown(ticker Ticker, duration time.Duration) chan time.Duration

func CreateFolderIfNotExists 

func CreateFolderIfNotExists(name string, perm os.FileMode) error

CreateFolderIfNotExists creates a folder if it does not exists

func CryptoRandomIntRange 

func CryptoRandomIntRange(min, max int) int

CryptoRandomIntRange returns a random integer in the given range. Randomness is from "crypto/rand" package.

func CustomConstantLength 

func CustomConstantLength(ln int, s string) string

func Debugf 

func Debugf(format string, a ...interface{})

func DebugfWithParameters 

func DebugfWithParameters(params []LogHeaderParameter, format string, a ...interface{})

func DebuglnWithParameters 

func DebuglnWithParameters(params []LogHeaderParameter, a ...interface{})

func Deduplicate 

func Deduplicate(a []string) []string

Deduplicate returns a deduplicated copy of a.

func DeduplicateInts 

func DeduplicateInts(a []int) []int

func DefaultNotify 

func DefaultNotify(handler func(os.Signal) bool)

func DeterministicRandomIntRange 

func DeterministicRandomIntRange(min, max int) int

RandomIntRange returns a random integer in the given range

func DirExists 

func DirExists(path string) (bool, error)

func Dump 

func Dump(a ...interface{})

func Errorf 

func Errorf(format string, a ...interface{})

func Errorln 

func Errorln(a ...interface{}) (n int, err error)

func Fatalf 

func Fatalf(format string, a ...interface{})

func Fataln 

func Fataln(a ...interface{})

func FileExists 

func FileExists(filepath string) (bool, error)

func FileExistsWithStat 

func FileExistsWithStat(filepath string) (os.FileInfo, bool, error)

func FilterExclude 

func FilterExclude(ss []string, filter func(s string) bool) []string

FilterExclude returns a new array of items that do not match the filter func; for any item in `ss`, if the `filter` func returns true, then the item will be excluded from the result slice.

func FilterModify 

func FilterModify(ss []string, filter func(s string) string) []string

FilterModify returns a new array containing the values of `ss` after they have been processed by the func `filter`; no modification to `ss` is done.

func FormatByteSlice 

func FormatByteSlice(buf []byte) string

func FormatErrorArray 

func FormatErrorArray(prefix string, errs []error) string

func GenerateIntRangeInclusive 

func GenerateIntRangeInclusive(from, to int) []int

Generate number range including `from` and `to`.

func GetAddedRemoved 

func GetAddedRemoved(previous []string, next []string) (added []string, removed []string)

func GetBaseDomain 

func GetBaseDomain(name string) (string, string)

GetBaseDomain returns the first label after the domain extension, ad the domain extension.

e.g. example.com -> example + .com e.g. subdomain.example.com -> example + .com

e.g. example.co.uk -> example + .co.uk e.g. subdomain.example.co.uk -> example + .co.uk

func GetCallerLocation 

func GetCallerLocation(callDepth int) (string, int)

GetCallerLocation returns the source location of the call at callDepth stack frames above the call.

func GetDomainExtension 

func GetDomainExtension(name string) string

GetDomainExtension returns the domain extension (among the known ones) of the provided host names.

func GetFormattedPercent 

func GetFormattedPercent(done int64, all int64) string

func GetPercent 

func GetPercent(done int64, all int64) float64

func GoFuncErrChan 

func GoFuncErrChan(f func() error) chan error

func HardWaitSystemSignal 

func HardWaitSystemSignal(callback func(), messages ...string)

HardWaitSystemSignal calls the callback at first signal, and waits for the callback to finish; when the callback finishes, HardWaitSystemSignal also finishes. If a second sygnal is sent before the callback finishes, a hard os.Exit is done.

func HasAnySuffix 

func HasAnySuffix(s string, suffixes ...string) bool

HasAnySuffix returns true if the string s has any of the prefixes provided.

func HasAnySuffixDottedOrNot 

func HasAnySuffixDottedOrNot(s string, suffixes ...string) bool

HasAnySuffixDottedOrNot returns true if the string s has any of the suffixes, whether they are in the .<suffix> or <suffix> variant.

func HasMatch 

func HasMatch(item string, patterns []string) (string, bool)

HasMatch finds the matching pattern (glob) to which the provided item matches.

func HashAnyWithJSON 

func HashAnyWithJSON(v interface{}) (uint64, error)

func HashBytes 

func HashBytes(b []byte) uint64

func HashString 

func HashString(s string) uint64

func HighlightAnyCase 

func HighlightAnyCase(str, substr string, colorer func(string) string) string

func HighlightLimeBG 

func HighlightLimeBG(str, substr string) string

func HighlightRedBG 

func HighlightRedBG(str, substr string) string

func IndentWithSpaces 

func IndentWithSpaces(n int, s string) string

func IndentWithTabs 

func IndentWithTabs(n int, s string) string

func Indigo 

func Indigo(s string) string

func IndigoBG 

func IndigoBG(s string) string

func Infof 

func Infof(format string, a ...interface{})

func InitDomainExtensions 

func InitDomainExtensions(path string)

func IntSliceContains 

func IntSliceContains(slice []int, element int) bool

IntSliceContains returns true if the provided slice of ints contains the element

func IsAnyOf 

func IsAnyOf(s string, candidates ...string) bool

func IsByteSlice 

func IsByteSlice(v interface{}) bool

func IsFolder 

func IsFolder(path string) (bool, error)

func IsLastUnicode 

func IsLastUnicode(s string) bool

func IsLight 

func IsLight(rr, gg, bb uint64) bool

IsLight returns whether the color is perceived to be a light color

func IsNotAnyOf 

func IsNotAnyOf(s string, candidates ...string) bool

func IterateStringAsRunes 

func IterateStringAsRunes(s string, callback func(r rune) bool)

func Itoa 

func Itoa(i int) string

func KitchenTimeMsNow 

func KitchenTimeMsNow() string

func KitchenTimeNow 

func KitchenTimeNow() string

func Lime 

func Lime(str string) string

func LimeBG 

func LimeBG(str string) string

func ListChildDirs 

func ListChildDirs(path string) ([]string, error)

ListChildDirs lists folders (full path) inside the specified folder (just first level; no grandchildren); if the provided filepath is not a folder, and error is returned.

func ListChildDirsWithBlacklist 

func ListChildDirsWithBlacklist(path string, blacklistPatterns []string) ([]string, error)

ListChildDirsWithBlacklist lists the child folders (full path) of a parent folder, filtering out folders that match one of the provided blacklist glob patterns.

func ListChildDirsWithWhitelist 

func ListChildDirsWithWhitelist(path string, whitelistPatterns []string) ([]string, error)

ListChildDirsWithWhitelist lists the child folders (full path) of a parent folder, filtering out folders that DON'T match any of the provided whitelist glob patterns.

func ListFiles 

func ListFiles(path string) ([]string, error)

ListFiles lists files (full path) inside the specified folder (just first level; no grandchildren); if the provided filepath is not a folder, and error is returned.

func Ln 

func Ln(a ...interface{})

func LoadJSON 

func LoadJSON(ptr interface{}, filepath string) error

func LoadYaml 

func LoadYaml(ptr interface{}, filepath string) error

func LogElapsedFromLastLogMessage 

func LogElapsedFromLastLogMessage() string

LogElapsedFromLastLogMessage adds to the log header the time passed from the last log call.

func LogElapsedFromStart 

func LogElapsedFromStart() string

LogElapsedFromStart adds the time passed from the program start.

func LogMessageNumber 

func LogMessageNumber() string

LogMessageNumber adds the index of the log call (incremental) to the log header.

func LogParamCallStack 

func LogParamCallStack() string

LogParamCallStack adds the file and line number of the log call to the log message.

func LogParamTimestamp 

func LogParamTimestamp() string

LogParamTimestamp adds a timestamp of current time to the log header.

func LogParamTimestampMs 

func LogParamTimestampMs() string

LogParamTimestamp adds a timestamp of current time (that inludes milliseconds) to the log header.

func LogRunID 

func LogRunID() string

LogRunID adds to the log header the unique ID of this program run.

func MoreThanOneIsTrue 

func MoreThanOneIsTrue(bools ...bool) bool

func MustAbs 

func MustAbs(path string) string

func MustAtoi 

func MustAtoi(s string) int

func MustCopyFile 

func MustCopyFile(src, dst string)

func MustCreateFolderIfNotExists 

func MustCreateFolderIfNotExists(path string, perm os.FileMode)

func MustFileExists 

func MustFileExists(path string) bool

func MustGetenv 

func MustGetenv(key string) string

func MustHashAnyWithJSON 

func MustHashAnyWithJSON(v interface{}) uint64

func MustLoadJSON added in v0.1.3 

func MustLoadJSON(ptr interface{}, filepath string)

func MustParseUnicode 

func MustParseUnicode(code string) string

func MustParseUnicodeAsRune 

func MustParseUnicodeAsRune(code string) rune

func MustRemoveFile 

func MustRemoveFile(path string)

func MustSaveAsIndentedJSON added in v0.1.3 

func MustSaveAsIndentedJSON(v interface{}, filepath string)

func MustSaveAsJSON added in v0.1.3 

func MustSaveAsJSON(v interface{}, filepath string)

func NewHTMLTemplateFromFile 

func NewHTMLTemplateFromFile(path string) (*htmltemplate.Template, error)

func NewHTMLTemplateFromFileWithFuncs 

func NewHTMLTemplateFromFileWithFuncs(path string, funcs htmltemplate.FuncMap) (*htmltemplate.Template, error)

func NewSectionReader 

func NewSectionReader(file *os.File) *io.SectionReader

NewSectionReader creates a SectionReader from the provided file.

func NewSpacesIndenter 

func NewSpacesIndenter(spaceWidth int) func(n int, s string) string

func NewTextTemplateFromFile 

func NewTextTemplateFromFile(path string) (*texttemplate.Template, error)

func NewTextTemplateFromFileWithFuncs 

func NewTextTemplateFromFileWithFuncs(path string, funcs texttemplate.FuncMap) (*texttemplate.Template, error)

func NewTextTemplateFromString 

func NewTextTemplateFromString(name string, tpl string) (*texttemplate.Template, error)

func NewTicker 

func NewTicker(duration time.Duration) <-chan time.Time

NewTicker returns a time channel that ticks ever specified interval, with the initial tick righ when you start listening.

func NewTimer 

func NewTimer() func() time.Duration

func NewTimerRaw 

func NewTimerRaw() func() time.Duration

func NewUniqueElements 

func NewUniqueElements(orig []string, add ...string) []string

NewUniqueElements removes elements that have duplicates in the original or new elements.

func NewUniqueInts 

func NewUniqueInts(orig []int, add ...int) []int

NewUniqueInts removes elements that have duplicates in the original or new elements.

func Notify 

func Notify(handler OsSignalHandler, signals ...os.Signal)

Notify calls handler when gets specified signals and pass given signal to handler. If handler returns false, notify stops waiting for signals.

func Orange 

func Orange(message string) string

func OrangeBG 

func OrangeBG(message string) string

func PanicIfAlreadyExists 

func PanicIfAlreadyExists(path string)

func ParseIntervals 

func ParseIntervals(s string) ([]int, error)

ParseIntervals parses a string representing a list of unsigned integers or integer ranges (using dashes).

func ParseUnicode 

func ParseUnicode(code string) (rune, error)

func Percent 

func Percent(pcent int64, all int64) float64

Percent calculate what is [percent]% of [number] For Example 25% of 200 is 50 It returns result as float64

func PercentOf 

func PercentOf(current int64, all int64) float64

PercentOf calculate [number1] is what percent of [number2] For example 300 is 12.5% of 2400 It returns result as float64

func Purple 

func Purple(s string) string

func PurpleBG 

func PurpleBG(s string) string

func Q 

func Q(v ...interface{})

Q to stderr

func Qs 

func Qs(v ...interface{})

Q to stdout

func RandomIntRange 

func RandomIntRange(min, max int) int

RandomIntRange returns a random integer in the given range; Randomness is from "math/rand" package.

func RandomString 

func RandomString(n int) string

RandomString returns a randomly-generated string of length = n

func ReadConfigLinesAsString 

func ReadConfigLinesAsString(filepath string, iterator func(line string) bool) error

ReadConfigLinesAsString iterates on the lines of a text file, trimming spaces, ignoring empty lines and comments.

func ReadFileLinesAsString 

func ReadFileLinesAsString(filepath string, iterator func(line string) bool) error

ReadFileLinesAsString iterates on the lines of a text file

func ReadStringLineByLine 

func ReadStringLineByLine(s string, iterator func(line string) bool) error

ReadStringLineByLine iterates over a multiline string

func Red 

func Red(str string) string

func RedBG 

func RedBG(s string) string

func RepeatString 

func RepeatString(n int, char string) string

func RetryExponentialBackoff 

func RetryExponentialBackoff(attempts int, initialSleep time.Duration, task func() error) []error

RetryExponentialBackoff executes task; if it returns an error, it will retry executing the task the specified number of times before giving up, and at each retry it will sleep double the amout of time of the previous retry; the initial sleep time is specified by the user.

func RetryLinearBackoff 

func RetryLinearBackoff(attempts int, sleep time.Duration, task func() error) []error

func ReturnNSpaces 

func ReturnNSpaces(n int) string

func ReverseDNSLabels 

func ReverseDNSLabels(hostname string) string

ReverseDNSLabels reverses the labels of a DNS, and returns the DNS name.

func ReverseIntSlice 

func ReverseIntSlice(ss []int)

ReverseIntSlice reverses a slice integers.

func ReverseString 

func ReverseString(s string) string

Reverses a string

func ReverseStringSlice 

func ReverseStringSlice(ss []string)

ReverseStringSlice reverses a string slice

func RunBatch 

func RunBatch(fn ...RunBatchFunc) error

RunBatch runs all functions simultaneously and waits until execution has completed or an error is encountered.

func SanitizeFileNamePart 

func SanitizeFileNamePart(part string) string

func SaveAsIndentedJSON 

func SaveAsIndentedJSON(v interface{}, filepath string) error

func SaveAsJSON 

func SaveAsJSON(v interface{}, filepath string) error

func SaveAsYaml 

func SaveAsYaml(v interface{}, filepath string) error

func Sdump 

func Sdump(a ...interface{}) string

func Sf 

func Sf(format string, a ...interface{}) string

func Sfln 

func Sfln(format string, a ...interface{})

Sfln is alias of fmt.Println(fmt.Sprintf())

func Shakespeare 

func Shakespeare(str string) string

light blue?

func ShakespeareBG 

func ShakespeareBG(str string) string

func ShuffleCryptoRand 

func ShuffleCryptoRand(n int, swap func(i, j int))

func ShuffleIntSliceCryptoRand 

func ShuffleIntSliceCryptoRand(a []int)

func ShuffleIntSliceMathRand 

func ShuffleIntSliceMathRand(a []int)

func ShuffleMathRand 

func ShuffleMathRand(n int, swap func(i, j int))

func SizeOfFile 

func SizeOfFile(file *os.File) int64

Size returns the size in bytes of the file.

func SliceContains 

func SliceContains(slice []string, element string) bool

SliceContains returns true if the provided slice of strings contains the element

func SplitStringByRune 

func SplitStringByRune(s string) []rune

func SplitStringByRuneAsStringSlice 

func SplitStringByRuneAsStringSlice(s string) []string

func SplitStringSlice 

func SplitStringSlice(parts int, slice []string) [][]string

func Sq 

func Sq(v ...interface{}) string

Q to a string

func StringToColor 

func StringToColor(str string) func(string) string

func StringToColorBG 

func StringToColorBG(str string) func(string) string

func Successf 

func Successf(format string, a ...interface{})

func ThisFuncName 

func ThisFuncName() string

func ToCamel 

func ToCamel(s string) string

ToCamel converts a string to CamelCase

func ToCamelWithAcronyms added in v0.1.1 

func ToCamelWithAcronyms(
	s string,
	acronyms map[string]bool,
) string

ToCamel converts a string to CamelCase

func ToDelimited 

func ToDelimited(s string, delimiter uint8) string

ToDelimited converts a string to delimited.snake.case (in this case `delimiter = '.'`)

func ToKebab 

func ToKebab(s string) string

ToKebab converts a string to kebab-case

func ToLower 

func ToLower(s string) string

func ToLowerCamel 

func ToLowerCamel(s string) string

ToLowerCamel converts a string to lowerCamelCase

func ToLowerCamelWithAcronyms added in v0.1.1 

func ToLowerCamelWithAcronyms(
	s string,
	acronyms map[string]bool,
) string

ToLowerCamel converts a string to lowerCamelCase

func ToScreamingDelimited 

func ToScreamingDelimited(s string, delimiter uint8, ignore uint8, screaming bool) string

ToScreamingDelimited converts a string to SCREAMING.DELIMITED.SNAKE.CASE (in this case `delimiter = '.'; screaming = true`) or delimited.snake.case (in this case `delimiter = '.'; screaming = false`)

func ToScreamingKebab 

func ToScreamingKebab(s string) string

ToScreamingKebab converts a string to SCREAMING-KEBAB-CASE

func ToScreamingSnake 

func ToScreamingSnake(s string) string

ToScreamingSnake converts a string to SCREAMING_SNAKE_CASE

func ToSnake 

func ToSnake(s string) string

ToSnake converts a string to snake_case

func ToSnakeWithIgnore 

func ToSnakeWithIgnore(s string, ignore uint8) string

func ToStringKeyVals 

func ToStringKeyVals(keyvals ...string) (keys []string, vals []string)

func ToTitle 

func ToTitle(s string) string

func TranscodeJSON 

func TranscodeJSON(input interface{}, destinationPointer interface{}) error

TranscodeJSON converts the input to json, and then unmarshals it into the destination. The destination must be a pointer.

func TranscodeYAML 

func TranscodeYAML(input interface{}, destinationPointer interface{}) error

TranscodeYAML converts the input to yaml, and then unmarshals it into the destination. The destination must be a pointer.

func TrimDNSLabelFromBeginning 

func TrimDNSLabelFromBeginning(name string) (string, string)

TrimDNSLabelFromBeginning removes one label from the DNS name, and returns the new DNS name and the removed label.

func TrimExt 

func TrimExt(p string) string

TrimExt trims the file extension of the file(path).

func TrimFrom 

func TrimFrom(s string, after string) string

TrimFrom removes the string `after` from the string `s` and anything that comes after it.

func UniqueAppend 

func UniqueAppend(orig []string, add ...string) []string

UniqueAppend behaves like the Go append, but does not add duplicate elements.

func UniqueAppendInts 

func UniqueAppendInts(orig []int, add ...int) []int

UniqueAppendInts behaves like the Go append, but does not add duplicate elements.

func WaitHasTimedout 

func WaitHasTimedout(wg *sync.WaitGroup, timeout time.Duration) (timedout bool)

WaitHasTimedout waits for the waitgroup for the specified max timeout. Returns true if waiting timed out.

func WaitSystemSignal 

func WaitSystemSignal(messages ...string)

func Warnf 

func Warnf(format string, a ...interface{})

func White 

func White(s string) string

func WhiteBG 

func WhiteBG(s string) string

func WhitelistGlob 

func WhitelistGlob(items []string, whitelist []string) []string

WhitelistGlob filters out elements from the `items` slice that DON'T match any pattern from the `whitelist` slice; a glob comparison is done.

func Yellow 

func Yellow(message string) string

func YellowBG 

func YellowBG(message string) string

Types

type CombinedErrors 

type CombinedErrors struct {
	// contains filtered or unexported fields
}

func (*CombinedErrors) Error 

func (ce *CombinedErrors) Error() string

type ElasticStringIterator 

type ElasticStringIterator struct {
	// contains filtered or unexported fields
}

func NewElasticStringIterator 

func NewElasticStringIterator(arr []string) *ElasticStringIterator

func (*ElasticStringIterator) Iterate 

func (e *ElasticStringIterator) Iterate(callback func(s string) ([]string, bool))

type ExitLight added in v0.1.3 

type ExitLight struct {
	// contains filtered or unexported fields
}

func NewExitLight added in v0.1.3 

func NewExitLight() *ExitLight

func (*ExitLight) IsExiting added in v0.1.3 

func (light *ExitLight) IsExiting() bool

func (*ExitLight) SetAsExiting added in v0.1.3 

func (light *ExitLight) SetAsExiting()

type FlagStringArray 

type FlagStringArray []string

func (*FlagStringArray) Set 

func (i *FlagStringArray) Set(value string) error

func (*FlagStringArray) String 

func (i *FlagStringArray) String() string

type LogHeaderParameter 

type LogHeaderParameter func() string

type OsSignalHandler 

type OsSignalHandler func(os.Signal) bool

type Replacer 

type Replacer struct {
	// contains filtered or unexported fields
}

func NewReplacer 

func NewReplacer(s string, n int) *Replacer

func (*Replacer) Replace 

func (re *Replacer) Replace(old, new string) *Replacer

func (*Replacer) String 

func (re *Replacer) String() string

type RunBatchFunc 

type RunBatchFunc func() error

RunBatchFunc is the function signature for RunBatch.

type SizedGroup added in v0.1.3 

type SizedGroup struct {
	// contains filtered or unexported fields
}

func NewSizedGroup added in v0.1.3 

func NewSizedGroup(cNum int64) *SizedGroup

func SizedGroupWithContext added in v0.1.3 

func SizedGroupWithContext(ctx context.Context) (*SizedGroup, context.Context)

func (*SizedGroup) Go added in v0.1.3 

func (g *SizedGroup) Go(f func() error)

Go calls the given function in a new goroutine.

The first call to return a non-nil error cancels the group; its error will be returned by Wait.

func (*SizedGroup) Wait added in v0.1.3 

func (g *SizedGroup) Wait() error

Wait blocks until all function calls from the Go method have returned, then returns the first non-nil error (if any) from them.

type TickFunc 

type TickFunc func(d time.Duration)

type Ticker 

type Ticker interface {
	Duration() time.Duration
	Tick()
	Stop()
}

/ ticker countdown

func NewTickerCountdown 

func NewTickerCountdown(d time.Duration) Ticker

type WriteByWrite 

type WriteByWrite struct {
	// contains filtered or unexported fields
}

func NewWriteByWrite 

func NewWriteByWrite(name string) *WriteByWrite

func (*WriteByWrite) Bytes 

func (rec *WriteByWrite) Bytes() []byte

func (WriteByWrite) String 

func (rec WriteByWrite) String() string

func (*WriteByWrite) Write 

func (rec *WriteByWrite) Write(b []byte) (int, error)

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.