tools

package
v0.3.7 Latest Latest
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 Go to latest Published: Jan 25, 2021 License: BSD-3-Clause Imports: 35 Imported by: 5

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	ErrNoCmds = errors.New("pipe: there were no commands provided")
)
View Source 
var (
	RegExPhone *regexp.Regexp
)

Functions

func ByteToStr 

func ByteToStr(bts []byte) string

ByteToStr converts byte slice to a string without memory allocation. Note it may break if string and/or slice header will change in the future go versions.

func CPUTicks added in v0.0.35 

func CPUTicks() int64

CPUTicks is a faster alternative to NanoTime to measure time duration.

func CertTemplate 

func CertTemplate() (*x509.Certificate, error)

helper function to create a cert template with a serial number and other required fields

func CreateCert 

func CreateCert(template, parent *x509.Certificate, pub interface{}, parentPriv interface{}) (cert *x509.Certificate, certPEM []byte, err error)

func Duration added in v0.0.35 

func Duration(t int64) time.Duration

func FastRand added in v0.0.35 

func FastRand() uint32

FastRand is a fast thread local random function.

func GenerateSelfSignedCerts 

func GenerateSelfSignedCerts(keyPath, certPath string)

func GetCertificate 

func GetCertificate(keyPath, certPath string) tls.Certificate

func GetCountryCode 

func GetCountryCode(phone string) string

func Int32ToStr 

func Int32ToStr(x int32) string

func Int64ToStr 

func Int64ToStr(x int64) string

func MustSha256 

func MustSha256(in []byte) []byte

func MustSha512 

func MustSha512(in, out []byte)

func NanoTime added in v0.0.35 

func NanoTime() int64

NanoTime returns the current time in nanoseconds from a monotonic clock.

func NewPipeCommands 

func NewPipeCommands(cmds ...*exec.Cmd) (*cmdPipe, error)

func PromptCompleter added in v0.3.3 

func PromptCompleter(rootCmd *cobra.Command) func(d prompt.Document) []prompt.Suggest

PromptCompleter returns a completer function used by prompt package. This function is useful to create an interactive shell based on the rootCmd as the root commands.

func PromptExecutor added in v0.3.3 

func PromptExecutor(rootCmd *cobra.Command) func(s string)

PromptExecutor returns an executor function used by prompt package. This function is useful to create an interactive shell based on the rootCmd as the root commands.

func RandomDigit 

func RandomDigit(n int) string

RandomDigit generates a pseudo-random string with length 'n' which characters are only digits (0-9)

func RandomID 

func RandomID(n int) string

RandomID generates a pseudo-random string with length 'n' which characters are alphanumerics.

func RandomInt 

func RandomInt(n int) (x int)

func RandomInt64 

func RandomInt64(n int64) (x int64)

RandomInt64 produces a pseudo-random number, if n == 0 there will be no limit otherwise the output will be smaller than n

func RandomUint64 

func RandomUint64(n uint64) (x uint64)

RandUint64 produces a pseudo-random unsigned number

func SanitizePhone 

func SanitizePhone(phoneNumber string, defaultRegion string) string

func SecureRandomInt63 

func SecureRandomInt63(n int64) (x int64)

func SecureRandomUint64 

func SecureRandomUint64() (x uint64)

func SetFlags added in v0.0.43 

func SetFlags(cmd *cobra.Command, opts ...FlagOption)

SetFlags applies 'opts' on 'cmd' flags in order.

func SetPersistentFlags added in v0.0.43 

func SetPersistentFlags(cmd *cobra.Command, opts ...FlagOption)

SetPersistentFlags applies 'opts' on 'cmd' persistent flags.

func Sha256 

func Sha256(in []byte) ([]byte, error)

Sha256 returns a 32bytes array which is sha256(in)

func Sha512 

func Sha512(in, out []byte) error

Sha512 returns a 64bytes array which is sha512(in)

func StrToByte 

func StrToByte(str string) []byte

StrToByte converts string to a byte slice without memory allocation. Note it may break if string and/or slice header will change in the future go versions.

func StrToInt32 

func StrToInt32(s string) int32

func StrToInt64 

func StrToInt64(s string) int64

func StrToUInt32 

func StrToUInt32(s string) uint32

func StrToUInt64 

func StrToUInt64(s string) uint64

func TimeUnix 

func TimeUnix() int64

func ToCamel 

func ToCamel(s string) 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 ToLowerCamel 

func ToLowerCamel(s string) 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 Try 

func Try(attempts int, waitTime time.Duration, f RetryableFunc) (err error)

func UInt32ToStr 

func UInt32ToStr(x uint32) string

func UInt64ToStr 

func UInt64ToStr(x uint64) string

Types

type FlagOption added in v0.0.43 

type FlagOption func(fs *pflag.FlagSet)

FlagOption applies some predefined configurations on a FlagSet.

func RegisterBoolFlag added in v0.0.43 

func RegisterBoolFlag(name string, value bool, usage string) FlagOption

func RegisterDurationFlag added in v0.0.43 

func RegisterDurationFlag(name string, value time.Duration, usage string) FlagOption

func RegisterInt32Flag added in v0.0.43 

func RegisterInt32Flag(name string, value int32, usage string) FlagOption

func RegisterInt64Flag added in v0.0.43 

func RegisterInt64Flag(name string, value int64, usage string) FlagOption

func RegisterInt64SliceFlag added in v0.0.43 

func RegisterInt64SliceFlag(name string, value []int64, usage string) FlagOption

func RegisterIntFlag added in v0.0.43 

func RegisterIntFlag(name string, value int, usage string) FlagOption

func RegisterStringFlag added in v0.0.43 

func RegisterStringFlag(name, value, usage string) FlagOption

func RegisterStringSliceFlag added in v0.0.43 

func RegisterStringSliceFlag(name string, value []string, usage string) FlagOption

func RegisterUInt64Flag added in v0.0.43 

func RegisterUInt64Flag(name string, value uint64, usage string) FlagOption

type FlushEntry added in v0.1.4 

type FlushEntry interface {
	Value() interface{}
	// contains filtered or unexported methods
}

func NewEntry added in v0.1.4 

func NewEntry(v interface{}) FlushEntry

type FlusherFunc added in v0.1.4 

type FlusherFunc func(targetID string, entries []FlushEntry)

type FlusherPool added in v0.3.2 

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

func NewFlusherPool added in v0.1.4 

func NewFlusherPool(maxWorkers, batchSize int32, f FlusherFunc) *FlusherPool

NewFlusherPool creates a pool of flusher funcs. By calling Enter or EnterAndWait you add the item into the flusher which identified by 'targetID'.

func (*FlusherPool) Enter added in v0.3.2 

func (fp *FlusherPool) Enter(targetID string, entry FlushEntry)

func (*FlusherPool) EnterAndWait added in v0.3.2 

func (fp *FlusherPool) EnterAndWait(targetID string, entry FlushEntry)

type LinkedList 

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

func NewLinkedList 

func NewLinkedList() *LinkedList

func (*LinkedList) Append 

func (ll *LinkedList) Append(data interface{})

func (*LinkedList) Get 

func (ll *LinkedList) Get(index int32) (n *Node)

func (*LinkedList) Head 

func (ll *LinkedList) Head() *Node

func (*LinkedList) PickHeadData 

func (ll *LinkedList) PickHeadData() interface{}

func (*LinkedList) PickTailData 

func (ll *LinkedList) PickTailData() interface{}

func (*LinkedList) Prepend 

func (ll *LinkedList) Prepend(data interface{})

func (*LinkedList) RemoveAt 

func (ll *LinkedList) RemoveAt(index int32)

func (*LinkedList) Reset 

func (ll *LinkedList) Reset()

func (*LinkedList) Size 

func (ll *LinkedList) Size() int32

func (*LinkedList) String 

func (ll *LinkedList) String() string

func (*LinkedList) Tail 

func (ll *LinkedList) Tail() *Node

type Node 

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

func (Node) GetData 

func (n Node) GetData() interface{}

type RetryableFunc 

type RetryableFunc func() error

type SpinLock added in v0.1.4 

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

SpinLock is a spinlock implementation.

A SpinLock must not be copied after first use. This SpinLock intended to be used to synchronize exceptionally short lived operations.

func (*SpinLock) Lock added in v0.1.4 

func (l *SpinLock) Lock()

Lock locks l. If the lock is already in use, the calling goroutine blocks until the locker is available.

func (*SpinLock) Unlock added in v0.1.4 

func (l *SpinLock) Unlock()

Unlock unlocks l.

Source Files

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