initial skel for subcommand

Signed-off-by: Christian Richter <crichter@owncloud.com>

ocis/pkg/command/init.go

@@ -0,0 +1,63 @@
+package command
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/owncloud/ocis/ocis-pkg/config"
+	"github.com/owncloud/ocis/ocis/pkg/register"
+	cli "github.com/urfave/cli/v2"
+)
+
+func InitCommand(cfg *config.Config) *cli.Command {
+	return &cli.Command{
+		Name:  "init",
+		Usage: "initialise an ocis config",
+		Flags: []cli.Flag{
+			&cli.StringFlag{
+				Name:    "insecure",
+				EnvVars: []string{"OCIS_INSECURE"},
+				Value:   "ask",
+			},
+		},
+		Action: func(c *cli.Context) error {
+			// TODO: discuss if we want overwrite protection for existing configs
+			insecureFlag := c.String("insecure")
+			if insecureFlag == "ask" {
+				answer := strings.ToLower(StringPrompt("Insecure Backends? [Yes|No]"))
+				if answer == "yes" || answer == "y" {
+					cfg.Proxy.InsecureBackends = true
+				} else {
+					cfg.Proxy.InsecureBackends = false
+				}
+			} else {
+				if insecureFlag == "true" {
+					cfg.Proxy.InsecureBackends = true
+				} else {
+					cfg.Proxy.InsecureBackends = false
+				}
+			}
+			fmt.Println(cfg.Proxy.InsecureBackends)
+			return nil
+		},
+	}
+}
+
+func StringPrompt(label string) string {
+	var s string
+	r := bufio.NewReader(os.Stdin)
+	for {
+		fmt.Fprint(os.Stderr, label+" ")
+		s, _ = r.ReadString('\n')
+		if s != "" {
+			break
+		}
+	}
+	return strings.TrimSpace(s)
+}
+
+func init() {
+	register.AddCommand(InitCommand)
+}