working commit

vendor/sigs.k8s.io/kustomize/api/internal/git/gitrunner.go

@@ -0,0 +1,55 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package git
+
+import (
+	"os/exec"
+	"time"
+
+	"sigs.k8s.io/kustomize/api/internal/utils"
+	"sigs.k8s.io/kustomize/kyaml/errors"
+	"sigs.k8s.io/kustomize/kyaml/filesys"
+)
+
+// gitRunner runs the external git binary.
+type gitRunner struct {
+	gitProgram string
+	duration   time.Duration
+	dir        filesys.ConfirmedDir
+}
+
+// newCmdRunner returns a gitRunner if it can find the binary.
+// It also creats a temp directory for cloning repos.
+func newCmdRunner(timeout time.Duration) (*gitRunner, error) {
+	gitProgram, err := exec.LookPath("git")
+	if err != nil {
+		return nil, errors.WrapPrefixf(err, "no 'git' program on path")
+	}
+	dir, err := filesys.NewTmpConfirmedDir()
+	if err != nil {
+		return nil, err
+	}
+	return &gitRunner{
+		gitProgram: gitProgram,
+		duration:   timeout,
+		dir:        dir,
+	}, nil
+}
+
+// run a command with a timeout.
+func (r gitRunner) run(args ...string) error {
+	//nolint: gosec
+	cmd := exec.Command(r.gitProgram, args...)
+	cmd.Dir = r.dir.String()
+	return utils.TimedCall(
+		cmd.String(),
+		r.duration,
+		func() error {
+			out, err := cmd.CombinedOutput()
+			if err != nil {
+				return errors.WrapPrefixf(err, "failed to run '%s': %s", cmd.String(), string(out))
+			}
+			return err
+		})
+}