package.gitClone: return error if destination directory is not empty

2 files changed, 8 insertions, 0 deletions

diff --git a/beku.go b/beku.go
index 9b838cf..3f079a0 100644
--- a/beku.go
+++ b/beku.go
@@ -54,6 +54,7 @@ var (
 	ErrPackageName = errors.New("Empty or invalid package name")
 
 	errDBPackageName = "missing package name, line %d at %s"
+	errDirNotEmpty   = "directory %s is not empty"
 )
 
 var (
diff --git a/package_git.go b/package_git.go
index 8865ebf..ee46d39 100644
--- a/package_git.go
+++ b/package_git.go
@@ -32,6 +32,7 @@ func (pkg *Package) gitCheckoutVersion(version string) (err error) {
 
 //
 // gitClone the package into "$GOPATH/src/{ImportPath}".
+// If destination directory is not empty it will return an error.
 //
 func (pkg *Package) gitClone() (err error) {
 	err = os.MkdirAll(pkg.FullPath, 0700)
@@ -40,6 +41,12 @@ func (pkg *Package) gitClone() (err error) {
 		return
 	}
 
+	empty := IsDirEmpty(pkg.FullPath)
+	if !empty {
+		err = fmt.Errorf("gitClone: "+errDirNotEmpty, pkg.FullPath)
+		return
+	}
+
 	//nolint:gas
 	cmd := exec.Command("git", "clone", pkg.RemoteURL, ".")
 	fmt.Println(">>>", cmd.Args)