Add dump helpers

config.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"log"
+	"os"
+	"strings"
+	"time"
+)
+
+// Backup folder
+// Backup interval
+// Max backups to keep
+
+type conf struct {
+	Folder                string // Backup folder _with_ trailing slash
+	fullCurrentBackupPath string
+	Interval              time.Duration
+	MaxBackups            int64
+}
+
+var (
+	config   *conf
+	dumpTime time.Time
+)
+
+func init() {
+	config = &conf{
+		Folder:     "/backups/",
+		Interval:   time.Hour * 6,
+		MaxBackups: 12,
+	}
+
+	folder, has := os.LookupEnv("BACKUP_FOLDER")
+	if has {
+		if !strings.HasSuffix(folder, "/") {
+			folder = folder + "/"
+		}
+
+		config.Folder = folder
+	}
+	updateFullBackupPath()
+}
+
+func updateFullBackupPath() {
+	dumpTime = time.Now()
+	config.fullCurrentBackupPath = config.Folder + dumpTime.Format("02-01-2006_15-04-05") + "/"
+	err := os.MkdirAll(config.fullCurrentBackupPath, 0644)
+	if err != nil {
+		log.Fatalf("Could not create backup folder: %s\n", err)
+	}
+}