errors.go

package localcmd

import (
	"bytes"
	"fmt"

	"github.com/openshift/origin/pkg/cmd/util/prefixwriter"
)

// execError is an error that occurred executing a local command
type execError struct {
	cmd    []string
	cause  error
	stdOut []byte
	errOut []byte
}

func newExecError(cmd []string, cause error, stdOut, errOut []byte) error {
	return &execError{
		cmd:    cmd,
		cause:  cause,
		stdOut: stdOut,
		errOut: errOut,
	}
}

func (e *execError) Error() string {
	return fmt.Sprintf("exec error: %v", e.cause)
}

func (e *execError) Cause() error {
	return e.cause
}

func (e *execError) Details() string {
	out := &bytes.Buffer{}
	fmt.Fprintf(out, "Command: %v\n", e.cmd)
	if len(e.stdOut) > 0 {
		fmt.Fprintf(out, "Standard output:\n")
		w := prefixwriter.New("  ", out)
		w.Write(bytes.TrimSpace(e.stdOut))
		fmt.Fprintf(out, "\n")
	}
	if len(e.errOut) > 0 {
		fmt.Fprintf(out, "Error output:\n")
		w := prefixwriter.New("  ", out)
		w.Write(bytes.TrimSpace(e.errOut))
		fmt.Fprintf(out, "\n")
	}
	return out.String()
}