model: Add version.txt file to storage folder

This prepares the ability to check for compatibility between a Ceres
executable build and an existing storage folder.

1 files changed, 10 insertions, 1 deletions

diff --git a/model/storage.go b/model/storage.go
index 39539d4..2ce2fdf 100644
--- a/model/storage.go
+++ b/model/storage.go
@@ -3,11 +3,12 @@ package model
 import (
 	"log"
 	"os"
+	"path/filepath"
 )
 
 var storage string
 
-func InitStorage() {
+func InitStorage(version string) {
 	var err error
 
 	storage, err = os.MkdirTemp("", "ceres-")
@@ -15,6 +16,14 @@ func InitStorage() {
 		log.Fatal(err)
 	}
 
+	if version != "" {
+		vp := filepath.Join(storage, "version.txt")
+		err = os.WriteFile(vp, []byte(version+"\n"), 0644)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+
 	log.Printf("Storage directory: %s\n", storage)
 }