Merge pull request #123 from kcl-lang/fix-git-download-failure

fix: fix git downloading failure

pkg/source/getter.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"os"
 	"os/signal"
+	"path/filepath"
 	"sync"
 
 	"github.com/hashicorp/go-getter"
@@ -24,6 +25,13 @@ func ReadThroughGetter(src string, opts ...getter.ClientOption) (string, string,
 	if err != nil {
 		return "", tmpDir, fmt.Errorf("error creating temp file: %v", err)
 	}
+
+	// go-getter should download the source code to a directory which not exists.
+	// if the path exists, it will return an error.
+	if IsGit(src) || IsVCSDomain(src) {
+		tmpDir = filepath.Join(tmpDir, "git")
+	}
+
 	// Getter context
 	ctx, cancel := context.WithCancel(context.Background())
 	// Build the client

pkg/source/getter_test.go

@@ -0,0 +1,26 @@
+package source
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestReadThroughGetter(t *testing.T) {
+	tmpDir, _, err := ReadThroughGetter("git::https://github.com/kcl-lang/flask-demo-kcl-manifests.git")
+	if err != nil {
+		t.Errorf("TestReadThroughGetter() error = %v", err)
+		return
+	}
+
+	// Check if tmpDir exists
+	if _, err := os.Stat(tmpDir); os.IsNotExist(err) {
+		t.Errorf("TestReadThroughGetter() tmpDir does not exist")
+	}
+
+	// Check if kcl.mod file exists in tmpDir
+	kclModPath := filepath.Join(tmpDir, "kcl.mod")
+	if _, err := os.Stat(kclModPath); os.IsNotExist(err) {
+		t.Errorf("TestReadThroughGetter() kcl.mod file does not exist in tmpDir")
+	}
+}