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package oscommands
import (
"bufio"
"github.com/go-errors/errors"
"github.com/jesseduffield/lazygit/pkg/utils"
"github.com/sirupsen/logrus"
)
type ICmdObjRunner interface {
Run(cmdObj ICmdObj) error
RunWithOutput(cmdObj ICmdObj) (string, error)
RunAndProcessLines(cmdObj ICmdObj, onLine func(line string) (bool, error)) error
}
type cmdObjRunner struct {
log *logrus.Entry
logCmdObj func(ICmdObj)
}
var _ ICmdObjRunner = &cmdObjRunner{}
func (self *cmdObjRunner) Run(cmdObj ICmdObj) error {
_, err := self.RunWithOutput(cmdObj)
return err
}
func (self *cmdObjRunner) RunWithOutput(cmdObj ICmdObj) (string, error) {
if cmdObj.ShouldLog() {
self.logCmdObj(cmdObj)
}
output, err := sanitisedCommandOutput(cmdObj.GetCmd().CombinedOutput())
if err != nil {
self.log.WithField("command", cmdObj.ToString()).Error(output)
}
return output, err
}
func (self *cmdObjRunner) RunAndProcessLines(cmdObj ICmdObj, onLine func(line string) (bool, error)) error {
if cmdObj.ShouldLog() {
self.logCmdObj(cmdObj)
}
cmd := cmdObj.GetCmd()
stdoutPipe, err := cmd.StdoutPipe()
if err != nil {
return err
}
scanner := bufio.NewScanner(stdoutPipe)
scanner.Split(bufio.ScanLines)
if err := cmd.Start(); err != nil {
return err
}
for scanner.Scan() {
line := scanner.Text()
stop, err := onLine(line)
if err != nil {
return err
}
if stop {
_ = cmd.Process.Kill()
break
}
}
_ = cmd.Wait()
return nil
}
func sanitisedCommandOutput(output []byte, err error) (string, error) {
outputString := string(output)
if err != nil {
// errors like 'exit status 1' are not very useful so we'll create an error
// from the combined output
if outputString == "" {
return "", utils.WrapError(err)
}
return outputString, errors.New(outputString)
}
return outputString, nil
}
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