followparser

README

followparser

followparser is log parser helper. It's useful for visualize logs for examle mackerel plugin.

• save previous read pos
• follow rotate logs

usage

See

• mackerel-plugin-log-incr-rate
• mackerel-plugin-postfix-log

Documentation

Index

• Variables
• func Parse(posFileName, logFile string, cb Callback) error
• type Callback
• type Parsed
• type Parser
  • func (parser *Parser) Parse(posFileName, logFile string) ([]Parsed, error)

Variables

var DefaultMaxReadSize int64 = 500 * 1000 * 1000

DefaultMaxReadSize : Maximum size for read

Functions

func Parse

func Parse(posFileName, logFile string, cb Callback) error

Types

type Callback

type Callback interface {
	Parse(b []byte) error
	Finish(duration float64)
}

type Parsed

type Parsed struct {
	FileName string
	Size     int64
	StartPos int64
	EndPos   int64
	Rows     int
}

type Parser

type Parser struct {
	WorkDir     string
	MaxReadSize int64
	Callback    Callback
	Silent      bool
}

func (*Parser) Parse

func (parser *Parser) Parse(posFileName, logFile string) ([]Parsed, error)