mirror of https://github.com/databricks/cli.git
82 lines
1.5 KiB
Go
82 lines
1.5 KiB
Go
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package spawn
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import (
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"bytes"
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"context"
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"errors"
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"fmt"
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"io"
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"log"
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"os/exec"
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"runtime"
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"strings"
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)
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type cxtKey int
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const (
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prjRoot cxtKey = iota
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)
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func WithRoot(ctx context.Context, root string) context.Context {
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return context.WithValue(ctx, prjRoot, root)
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}
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func ExecAndPassErr(ctx context.Context, name string, args ...string) ([]byte, error) {
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log.Printf("[DEBUG] Running %s %s", name, strings.Join(args, " "))
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reader, writer := io.Pipe()
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out := bytes.NewBuffer([]byte{}) // add option to route to Stdout in verbose mode
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go io.Copy(out, reader)
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cmd := exec.CommandContext(ctx, name, args...)
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cmd.Stdout = writer
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cmd.Stderr = writer
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root, ok := ctx.Value(prjRoot).(string)
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if ok {
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cmd.Dir = root
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}
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err := cmd.Run()
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_ = writer.Close()
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_ = reader.Close()
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if err != nil {
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return nil, fmt.Errorf(trimmedS(out.Bytes()))
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}
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return []byte(trimmedS(out.Bytes())), nil
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}
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func DetectExecutable(ctx context.Context, exec string) (string, error) {
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detector := "which"
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if runtime.GOOS == "windows" {
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detector = "where.exe"
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}
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out, err := ExecAndPassErr(ctx, detector, exec)
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if err != nil {
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return "", err
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}
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return trimmedS(out), nil
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}
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func nicerErr(err error) error {
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if err == nil {
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return nil
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}
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if ee, ok := err.(*exec.ExitError); ok {
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errMsg := trimmedS(ee.Stderr)
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if errMsg == "" {
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errMsg = err.Error()
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}
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return errors.New(errMsg)
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}
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return err
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}
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func trimmedS(bytes []byte) string {
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return strings.Trim(string(bytes), "\n\r")
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}
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