tools

package
v0.6.40 Latest Latest
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Published: Apr 22, 2021 License: BSD-3-Clause Imports: 37 Imported by: 5

Documentation

Index

Constants

This section is empty.

Variables

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

Functions

func AppendStrInt added in v0.6.28

func AppendStrInt(sb *strings.Builder, x int)

func AppendStrInt32 added in v0.6.28

func AppendStrInt32(sb *strings.Builder, x int32)

func AppendStrInt64 added in v0.6.28

func AppendStrInt64(sb *strings.Builder, x int64)

func AppendStrUInt added in v0.6.28

func AppendStrUInt(sb *strings.Builder, x uint)

func AppendStrUInt32 added in v0.6.28

func AppendStrUInt32(sb *strings.Builder, x uint32)

func AppendStrUInt64 added in v0.6.28

func AppendStrUInt64(sb *strings.Builder, x uint64)

func B2S added in v0.5.20

func B2S(bts []byte) string

B2S is alias for ByteToStr

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 DeleteItemFromSlice added in v0.6.28

func DeleteItemFromSlice(slice interface{}, index int)

DeleteItemFromSlice deletes item from slice. 'slice' MUST be a slice otherwise panics. 'index' MUST be valid otherwise panics.

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 IntToStr added in v0.6.3

func IntToStr(x int) string

func MustSha256

func MustSha256(in, out []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 RunInParallel added in v0.6.33

func RunInParallel(fns ...func() error) error

func RunInSequence added in v0.6.33

func RunInSequence(fns ...func() error) error

func S2B added in v0.5.20

func S2B(str string) []byte

S2B is alias for StrToByte

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, out []byte) error

Sha256 returns a 64bytes array which is sha256(in)

func Sha512

func Sha512(in, out []byte) error

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

func SliceBytesDiff added in v0.3.9

func SliceBytesDiff(a, b [][]byte, cb func([]byte))

SliceBytesDiff returns a - b and cb will be called on each found difference.

func SliceInt32Diff added in v0.3.9

func SliceInt32Diff(a, b []int32, cb func(int32))

SliceInt32Diff returns a - b and cb will be called on each found difference.

func SliceInt64Diff added in v0.3.9

func SliceInt64Diff(a, b []int64, cb func(int64))

SliceInt64Diff returns a - b and cb will be called on each found difference.

func SliceIntDiff added in v0.3.9

func SliceIntDiff(a, b []int, cb func(int))

SliceIntDiff returns a - b and cb will be called on each found difference.

func SliceStringDiff added in v0.3.9

func SliceStringDiff(a, b []string, cb func(string))

SliceInt64Diff returns a - b and cb will be called on each found difference.

func SliceUint32Diff added in v0.3.9

func SliceUint32Diff(a, b []uint32, cb func(uint32))

SliceUint32Diff returns a - b and cb will be called on each found difference.

func SliceUint64Diff added in v0.3.9

func SliceUint64Diff(a, b []uint64, cb func(uint64))

SliceUint64Diff returns a - b and cb will be called on each found difference.

func SliceUintDiff added in v0.3.9

func SliceUintDiff(a, b []uint, cb func(uint))

SliceUintDiff returns a - b and cb will be called on each found difference.

func StrToByte

func StrToByte(str string) (b []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 StrToInt added in v0.6.3

func StrToInt(s string) int

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 TryFast added in v0.6.26

func TryFast(f RetryableFunc) error

func TrySlow added in v0.6.26

func TrySlow(f RetryableFunc) error

func TrySuperFast added in v0.6.26

func TrySuperFast(f RetryableFunc) 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

func NewEntryWithCallback added in v0.6.34

func NewEntryWithCallback(v interface{}, cb func()) 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.

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