misc: refactored caplets code in a dedicated package

caplets/env.go

@@ -0,0 +1,32 @@
+package caplets
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/bettercap/bettercap/core"
+)
+
+const (
+	Suffix      = ".cap"
+	InstallPath = "/usr/local/share/bettercap/caplets/"
+)
+
+var (
+	LoadPaths = []string{
+		"./caplets/",
+		InstallPath,
+	}
+)
+
+func init() {
+	for _, path := range core.SepSplit(core.Trim(os.Getenv("CAPSPATH")), ":") {
+		if path = core.Trim(path); len(path) > 0 {
+			LoadPaths = append(LoadPaths, path)
+		}
+	}
+
+	for i, path := range LoadPaths {
+		LoadPaths[i], _ = filepath.Abs(path)
+	}
+}