refactor reple into separete files

pkg/cli/repl/completer.go

@@ -0,0 +1,31 @@
+package repl
+
+import (
+	"strings"
+
+	"github.com/c-bata/go-prompt"
+)
+
+func completer(d prompt.Document) []prompt.Suggest {
+	text := d.TextBeforeCursor()
+	words := strings.Fields(text)
+
+	if len(words) == 0 {
+		return nil
+	}
+
+	if words[0] != "pm" {
+		return filterByPrefix(rootSuggestions, words[0])
+	}
+
+	pmWords := words[1:]
+	if len(words) == 1 || (len(pmWords) == 1 && !strings.HasSuffix(text, " ")) {
+		return commandSuggestions(pmWords)
+	}
+
+	if len(pmWords) >= 1 {
+		return flagSuggestions(pmWords[0], pmWords, text)
+	}
+
+	return nil
+}