utils

README

util

go工具包

Documentation

Index

• func FileExists(name string) bool
• func GetFuncName(i interface{}) string
• func GrepFile(patten string, filename string) (lines []string, err error)
• func InSlice(v string, sl []string) bool
• func InSliceIface(v interface{}, sl []interface{}) bool
• func RandomCreateBytes(n int, alphabets ...byte) []byte
• func SearchFile(filename string, paths ...string) (fullpath string, err error)
• func SelfDir() string
• func SelfPath() string
• func SliceChunk(slice []interface{}, size int) (chunkslice [][]interface{})
• func SliceDiff(slice1, slice2 []interface{}) (diffslice []interface{})
• func SliceFilter(slice []interface{}, a filtertype) (ftslice []interface{})
• func SliceIntersect(slice1, slice2 []interface{}) (diffslice []interface{})
• func SliceMerge(slice1, slice2 []interface{}) (c []interface{})
• func SlicePad(slice []interface{}, size int, val interface{}) []interface{}
• func SliceRand(a []interface{}) (b interface{})
• func SliceRandList(min, max int) []int
• func SliceRange(start, end, step int64) (intslice []int64)
• func SliceReduce(slice []interface{}, a reducetype) (dslice []interface{})
• func SliceShuffle(slice []interface{}) []interface{}
• func SliceSum(intslice []int64) (sum int64)
• func SliceUnique(slice []interface{}) (uniqueslice []interface{})
• func Trycatch(try func(), catch func(e interface{}))
• type Attachment
• type Email
  • func NewEMail(config string) *Email
  • func (e *Email) Attach(r io.Reader, filename string, args ...string) (a *Attachment, err error)
  • func (e *Email) AttachFile(args ...string) (a *Attachment, err error)
  • func (e *Email) Bytes() ([]byte, error)
  • func (e *Email) Send() error
• type SafeMap
  • func NewSafeMap() *SafeMap
  • func (m *SafeMap) Check(k interface{}) bool
  • func (m *SafeMap) Delete(k interface{})
  • func (m *SafeMap) Get(k interface{}) interface{}
  • func (m *SafeMap) Items() map[interface{}]interface{}
  • func (m *SafeMap) Set(k interface{}, v interface{}) bool
• type WaitGroupWrapper
  • func (w *WaitGroupWrapper) Wrap(cb func())

Functions

func FileExists

func FileExists(name string) bool

FileExists reports whether the named file or directory exists.

func GetFuncName

func GetFuncName(i interface{}) string

GetFuncName get function name

func GrepFile

func GrepFile(patten string, filename string) (lines []string, err error)

GrepFile like command grep -E for example: GrepFile(`^hello`, "hello.txt") \n is striped while read

func InSlice

func InSlice(v string, sl []string) bool

InSlice checks given string in string slice or not.

func InSliceIface

func InSliceIface(v interface{}, sl []interface{}) bool

InSliceIface checks given interface in interface slice.

func RandomCreateBytes

func RandomCreateBytes(n int, alphabets ...byte) []byte

RandomCreateBytes generate random []byte by specify chars.

func SearchFile

func SearchFile(filename string, paths ...string) (fullpath string, err error)

SearchFile Search a file in paths. this is often used in search config file in /etc ~/

func SelfDir

func SelfDir() string

SelfDir gets compiled executable file directory

func SelfPath

func SelfPath() string

SelfPath gets compiled executable file absolute path

func SliceChunk

func SliceChunk(slice []interface{}, size int) (chunkslice [][]interface{})

SliceChunk separates one slice to some sized slice.

func SliceDiff

func SliceDiff(slice1, slice2 []interface{}) (diffslice []interface{})

SliceDiff returns diff slice of slice1 - slice2.

func SliceFilter

func SliceFilter(slice []interface{}, a filtertype) (ftslice []interface{})

SliceFilter generates a new slice after filter function.

func SliceIntersect

func SliceIntersect(slice1, slice2 []interface{}) (diffslice []interface{})

SliceIntersect returns slice that are present in all the slice1 and slice2.

func SliceMerge

func SliceMerge(slice1, slice2 []interface{}) (c []interface{})

SliceMerge merges interface slices to one slice.

func SlicePad

func SlicePad(slice []interface{}, size int, val interface{}) []interface{}

SlicePad prepends size number of val into slice.

func SliceRand

func SliceRand(a []interface{}) (b interface{})

SliceRand returns random one from slice.

func SliceRandList

func SliceRandList(min, max int) []int

SliceRandList generate an int slice from min to max.

func SliceRange

func SliceRange(start, end, step int64) (intslice []int64)

SliceRange generates a new slice from begin to end with step duration of int64 number.

func SliceReduce

func SliceReduce(slice []interface{}, a reducetype) (dslice []interface{})

SliceReduce generates a new slice after parsing every value by reduce function

func SliceShuffle

func SliceShuffle(slice []interface{}) []interface{}

SliceShuffle shuffles a slice.

func SliceSum

func SliceSum(intslice []int64) (sum int64)

SliceSum sums all values in int64 slice.

func SliceUnique

func SliceUnique(slice []interface{}) (uniqueslice []interface{})

SliceUnique cleans repeated values in slice.

func Trycatch

func Trycatch(try func(), catch func(e interface{}))

Types

type Attachment

type Attachment struct {
	Filename string
	Header   textproto.MIMEHeader
	Content  []byte
}

Attachment is a struct representing an email attachment. Based on the mime/multipart.FileHeader struct, Attachment contains the name, MIMEHeader, and content of the attachment in question

type Email

type Email struct {
	Auth        smtp.Auth
	Identity    string `json:"identity"`
	Username    string `json:"username"`
	Password    string `json:"password"`
	Host        string `json:"host"`
	Port        int    `json:"port"`
	From        string `json:"from"`
	To          []string
	Bcc         []string
	Cc          []string
	Subject     string
	Text        string // Plaintext message (optional)
	HTML        string // Html message (optional)
	Headers     textproto.MIMEHeader
	Attachments []*Attachment
	ReadReceipt []string
}

Email is the type used for email messages

func NewEMail

func NewEMail(config string) *Email

NewEMail create new Email struct with config json. config json is followed from Email struct fields.

func (*Email) Attach

func (e *Email) Attach(r io.Reader, filename string, args ...string) (a *Attachment, err error)

Attach is used to attach content from an io.Reader to the email. Parameters include an io.Reader, the desired filename for the attachment, and the Content-Type.

func (*Email) AttachFile

func (e *Email) AttachFile(args ...string) (a *Attachment, err error)

AttachFile Add attach file to the send mail

func (*Email) Bytes

func (e *Email) Bytes() ([]byte, error)

Bytes Make all send information to byte

func (*Email) Send

func (e *Email) Send() error

Send will send out the mail

type SafeMap

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

SafeMap is a map with lock

func NewSafeMap

func NewSafeMap() *SafeMap

NewSafeMap return new safemap

func (*SafeMap) Check

func (m *SafeMap) Check(k interface{}) bool

Check Returns true if k is exist in the map.

func (*SafeMap) Delete

func (m *SafeMap) Delete(k interface{})

Delete the given key and value.

func (*SafeMap) Get

func (m *SafeMap) Get(k interface{}) interface{}

Get from maps return the k's value

func (*SafeMap) Items

func (m *SafeMap) Items() map[interface{}]interface{}

Items returns all items in safemap.

func (*SafeMap) Set

func (m *SafeMap) Set(k interface{}, v interface{}) bool

Set Maps the given key and value. Returns false if the key is already in the map and changes nothing.

type WaitGroupWrapper

type WaitGroupWrapper struct {
	sync.WaitGroup
}

func (*WaitGroupWrapper) Wrap

func (w *WaitGroupWrapper) Wrap(cb func())