Nest packages under pkg

pkg/config/config.go

@@ -0,0 +1,46 @@
+package config
+
+import (
+	"log"
+	"os"
+
+	"fmt"
+
+	"path/filepath"
+
+	"path"
+	"runtime"
+
+	"github.com/BurntSushi/toml"
+)
+
+type Config struct {
+	Database Database
+	Client   Client
+}
+
+func NewConfig(environment string) Config {
+	filenameWithExtension := fmt.Sprintf("%s.toml", environment)
+	absolutePath := filepath.Join(ProjectRoot(), "pkg", "config", "environments", filenameWithExtension)
+	config := parseConfigFile(absolutePath)
+	config.Client.IPCPath = filepath.Join(ProjectRoot(), config.Client.IPCPath)
+	return config
+}
+
+func ProjectRoot() string {
+	var _, filename, _, _ = runtime.Caller(0)
+	return path.Join(path.Dir(filename), "..", "..")
+}
+
+func parseConfigFile(configfile string) Config {
+	var cfg Config
+	_, err := os.Stat(configfile)
+	if err != nil {
+		log.Fatal("Config file is missing: ", configfile)
+	}
+
+	if _, err := toml.DecodeFile(configfile, &cfg); err != nil {
+		log.Fatal(err)
+	}
+	return cfg
+}