Prepared for first release

- Creating db file in home dir or DB_FILE env variable
- Updated README with usages details
- Added GIF screencast

util/util.go

@@ -2,22 +2,51 @@ package util
 
 import (
 	"fmt"
+	"io/ioutil"
 	"log"
+	"os"
+	"path"
 	"strconv"
 	"strings"
 	"time"
 
 	"github.com/asdine/storm/v3"
+	"github.com/mitchellh/go-homedir"
 )
 
 // ConnectStorm Create database connection
 func ConnectStorm() *storm.DB {
-	db, err := storm.Open(GetEnvStr("DB_FILE", "geek-life.db"))
-	FatalIfError(err, "Could not connect Embedded Database File")
+	dbPath := GetEnvStr("DB_FILE", "")
+	var err error
+
+	if dbPath == "" {
+		// Try in home dir
+		dbPath, err = homedir.Expand("~/.geek-life/default.db")
+
+		// If home dir is not detected, try in system tmp dir
+		if err != nil {
+			f, _ := ioutil.TempFile("geek-life", "default.db")
+			dbPath = f.Name()
+		}
+	}
+
+	CreateDirIfNotExist(path.Dir(dbPath))
+
+	db, openErr := storm.Open(dbPath)
+	FatalIfError(openErr, "Could not connect Embedded Database File")
 
 	return db
 }
 
+func CreateDirIfNotExist(dir string) {
+	if _, err := os.Stat(dir); os.IsNotExist(err) {
+		err = os.MkdirAll(dir, 0755)
+		if err != nil {
+			panic(err)
+		}
+	}
+}
+
 // UnixToTime create time.Time from string timestamp
 func UnixToTime(timestamp string) time.Time {
 	parts := strings.Split(timestamp, ".")