/
cmd.go
69 lines (57 loc) · 1.48 KB
/
cmd.go
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package main
import (
"bufio"
"fmt"
"os/exec"
"strings"
"syscall"
)
func runCommand(dir, name string, arg ...string) (*string, int, error) {
sLogger.Infof("running command: %s %s in %s", name, arg, dir)
cmd := exec.Command(name, arg...)
stdOut, err := cmd.StdoutPipe()
if err != nil {
return nil, 0, err
}
stdErr, err := cmd.StderrPipe()
if err != nil {
return nil, 0, err
}
cmd.Dir = dir
if err := cmd.Start(); err != nil {
sLogger.Error("running command failed")
sLogger.Error(err.Error())
exitCode := 0
if exitErr, ok := err.(*exec.ExitError); ok {
if exitErr != nil {
sLogger.Error(string(exitErr.Stderr))
}
if status, ok := exitErr.Sys().(syscall.WaitStatus); ok {
exitCode = status.ExitStatus()
sLogger.Errorf("exited with code %d", exitCode)
}
}
return nil, exitCode, err
}
scannerStdOut := bufio.NewScanner(stdOut)
sbStdOut := strings.Builder{}
go func() {
for scannerStdOut.Scan() {
sbStdOut.WriteString(fmt.Sprintf("%s\n", scannerStdOut.Text()))
}
}()
scannerStdErr := bufio.NewScanner(stdErr)
sbStdErr := strings.Builder{}
go func() {
for scannerStdErr.Scan() {
sbStdErr.WriteString(fmt.Sprintf("%s\n", strings.TrimSpace(scannerStdErr.Text())))
}
}()
cmd.Wait()
stdOutString := strings.TrimSpace(sbStdOut.String())
if sbStdErr.String() != "" {
sLogger.Error(sbStdErr.String())
}
sLogger.Infof("exited with code %d", cmd.ProcessState.ExitCode())
return &stdOutString, cmd.ProcessState.ExitCode(), nil
}