storage: filesystem, initialize the default folder scaffolding

1 files changed, 27 insertions, 0 deletions

diff --git a/storage/filesystem/internal/dotgit/dotgit.go b/storage/filesystem/internal/dotgit/dotgit.go
index fdfcea7..f9f4d79 100644
--- a/storage/filesystem/internal/dotgit/dotgit.go
+++ b/storage/filesystem/internal/dotgit/dotgit.go
@@ -66,6 +66,33 @@ func New(fs billy.Filesystem) *DotGit {
 	return &DotGit{fs: fs}
 }
 
+// Initialize creates all the folder scaffolding.
+func (d *DotGit) Initialize() error {
+	mustExists := []string{
+		d.fs.Join("objects", "info"),
+		d.fs.Join("objects", "pack"),
+		d.fs.Join("refs", "heads"),
+		d.fs.Join("refs", "tags"),
+	}
+
+	for _, path := range mustExists {
+		_, err := d.fs.Stat(path)
+		if err == nil {
+			continue
+		}
+
+		if !os.IsNotExist(err) {
+			return err
+		}
+
+		if err := d.fs.MkdirAll(path, os.ModeDir|os.ModePerm); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
 // ConfigWriter returns a file pointer for write to the config file
 func (d *DotGit) ConfigWriter() (billy.File, error) {
 	return d.fs.Create(configPath)