A golang exec streamer to make streaming exec.Command as simple as possible
main.go:
package main
import (
execstreamer "github.com/golang-devops/go-exec-streamer"
"log"
"os"
)
func main() {
streamer, err := execstreamer.NewExecStreamerBuilder().
ExecutorName("winshell").
Exe("ping").
Args("127.0.0.1", "-n", "6").
StdoutWriter(os.Stdout).
StderrWriter(os.Stderr).
StdoutPrefix("OUT:").
StderrPrefix("ERR:").
AutoFlush().
Build()
if err != nil {
log.Fatal(err)
}
err = streamer.ExecAndWait()
if err != nil {
log.Fatal(err)
}
}
Note: StdoutWriter and StderrWriter is set to the ioutil.Discard writer by default.
Now run it:
go run main.go
This should print out something like:
OUT:
OUT:Pinging 127.0.0.1 with 32 bytes of data:
OUT:Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
OUT:Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
OUT:Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
OUT:Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
OUT:Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
OUT:Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
OUT:
OUT:Ping statistics for 127.0.0.1:
OUT: Packets: Sent = 6, Received = 6, Lost = 0 (0% loss),
OUT:Approximate round trip times in milli-seconds:
OUT: Minimum = 0ms, Maximum = 0ms, Average = 0ms