headscale client extract last line only
diff --git a/core/headscale/client.go b/core/headscale/client.go
index 9147629..edc36ff 100644
--- a/core/headscale/client.go
+++ b/core/headscale/client.go
@@ -3,6 +3,7 @@
import (
"fmt"
"os/exec"
+ "strings"
)
type client struct {
@@ -26,8 +27,11 @@
// TODO(giolekva): make expiration configurable, and auto-refresh
cmd := exec.Command("headscale", c.config, "--user", user, "preauthkeys", "create", "--reusable", "--expiration", "365d")
out, err := cmd.Output()
+ if err != nil {
+ return "", err
+ }
fmt.Println(string(out))
- return string(out), err
+ return extractLastLine(string(out))
}
func (c *client) enableRoute(id string) error {
@@ -37,3 +41,14 @@
fmt.Println(string(out))
return err
}
+
+func extractLastLine(s string) (string, error) {
+ items := strings.Split(s, "\n")
+ for i := len(items) - 1; i >= 0; i-- {
+ t := strings.TrimSpace(items[i])
+ if t != "" {
+ return t, nil
+ }
+ }
+ return "", fmt.Errorf("All lines are empty")
+}