refactor(server): use errgroup to supervise services (#3755)

Uses the errgroup package and pattern for supervising services like servers etc.

1 files changed, 18 insertions, 0 deletions

diff --git a/internal/commands/util.go b/internal/commands/util.go
new file mode 100644
index 000000000..26c308648
--- /dev/null
+++ b/internal/commands/util.go
@@ -0,0 +1,18 @@
+package commands
+
+import (
+	"fmt"
+)
+
+func recoverErr(i interface{}) error {
+	switch v := i.(type) {
+	case nil:
+		return nil
+	case string:
+		return fmt.Errorf("recovered panic: %s", v)
+	case error:
+		return fmt.Errorf("recovered panic: %w", v)
+	default:
+		return fmt.Errorf("recovered panic with unknown type: %v", v)
+	}
+}