When the 'tail.Tell()' method runs, the next line may have been read. This results in 'offset' not being a precise value. Whether to consider adding a configuration. When the configuration is "true", send "offset" in 'lines' channel
// Config is used to specify how a file must be tailed.
type Config struct {
// File-specifc
Location *SeekInfo // Seek to this location before tailing
ReOpen bool // Reopen recreated files (tail -F)
MustExist bool // Fail early if the file does not exist
Poll bool // Poll for file changes instead of using inotify
Pipe bool // Is a named pipe (mkfifo)
RateLimiter *ratelimiter.LeakyBucket
// Generic IO
Follow bool // Continue looking for new lines (tail -f)
MaxLineSize int // If non-zero, split longer lines into multiple lines
// Logger, when nil, is set to tail.DefaultLogger
// To disable logging: set field to tail.DiscardingLogger
Logger logger
// add this config
LinesOffset bool // When the configuration is "true", send "offset" in 'lines' channel
}
type Line struct {
Text string
Time time.Time
Err error // Error from tail
Offset int64 // this tell file offset
}
When the 'tail.Tell()' method runs, the next line may have been read. This results in 'offset' not being a precise value. Whether to consider adding a configuration. When the configuration is "true", send "offset" in 'lines' channel