add environment variable support

src/env.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/joho/godotenv"
+)
+
+// get the environment variables
+func getEnv() ArObject {
+	env := make(anymap)
+	for _, e := range os.Environ() {
+		pair := strings.Split(e, "=")
+		env[pair[0]] = ArString(pair[1])
+	}
+	cwd, err := os.Getwd()
+	if err == nil {
+		envfile := filepath.Join(cwd, ".env")
+		err := godotenv.Load(envfile)
+		if err == nil {
+			values, err := godotenv.Read()
+			if err == nil {
+				for k, v := range values {
+					env[k] = ArString(v)
+				}
+			}
+		}
+	}
+	return Map(env)
+}
+
+var env = getEnv()