feat: parameterize CI pipeline

cfg/config.go

@@ -0,0 +1,44 @@
+package cfg
+
+import (
+	"log"
+	"os/exec"
+	"strings"
+
+	"github.com/joho/godotenv"
+	"github.com/kelseyhightower/envconfig"
+)
+
+type Config struct {
+	ScriptBinaryPath  string `required:"true" split_words:"true"`
+	WebhookScriptPath string `required:"true" split_words:"true"`
+	FileToWatchPath   string `required:"true" split_words:"true"`
+}
+
+func rootDir() string {
+	cmdOut, err := exec.Command("git", "rev-parse", "--show-toplevel").Output()
+	if err != nil {
+		log.Fatalf("exec.Command: %s", err)
+		return ""
+	}
+
+	rootDir := strings.TrimSpace(string(cmdOut))
+	return rootDir
+}
+
+func NewConfig(isProd bool) *Config {
+	if !isProd {
+		err := godotenv.Load(rootDir() + "/.env")
+		if err != nil {
+			log.Fatalf("environment variable ENV is empty and an error occurred while loading the .env file\n")
+		}
+	}
+
+	cfg := &Config{}
+	err := envconfig.Process("", cfg)
+	if err != nil {
+		log.Fatalf("envconfig.Process: %s\n", err)
+	}
+
+	return cfg
+}