...

pkg/system/builders/postgresql/postgres/fs.go

@@ -0,0 +1,100 @@
+package postgres
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+// moveContents moves all contents from src directory to dst directory
+func moveContents(src, dst string) error {
+	entries, err := os.ReadDir(src)
+	if err != nil {
+		return err
+	}
+
+	for _, entry := range entries {
+		srcPath := filepath.Join(src, entry.Name())
+		dstPath := filepath.Join(dst, entry.Name())
+
+		// Handle existing destination
+		if _, err := os.Stat(dstPath); err == nil {
+			// If it exists, remove it first
+			if err := os.RemoveAll(dstPath); err != nil {
+				return fmt.Errorf("failed to remove existing path %s: %w", dstPath, err)
+			}
+		}
+
+		// Move the file or directory
+		if err := os.Rename(srcPath, dstPath); err != nil {
+			// If rename fails (possibly due to cross-device link), try copy and delete
+			if strings.Contains(err.Error(), "cross-device link") {
+				if entry.IsDir() {
+					if err := copyDir(srcPath, dstPath); err != nil {
+						return err
+					}
+				} else {
+					if err := copyFile(srcPath, dstPath); err != nil {
+						return err
+					}
+				}
+				os.RemoveAll(srcPath)
+			} else {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+// copyFile copies a file from src to dst
+func copyFile(src, dst string) error {
+	srcFile, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+	defer srcFile.Close()
+
+	dstFile, err := os.Create(dst)
+	if err != nil {
+		return err
+	}
+	defer dstFile.Close()
+
+	_, err = dstFile.ReadFrom(srcFile)
+	return err
+}
+
+// copyDir copies a directory recursively
+func copyDir(src, dst string) error {
+	srcInfo, err := os.Stat(src)
+	if err != nil {
+		return err
+	}
+
+	if err := os.MkdirAll(dst, srcInfo.Mode()); err != nil {
+		return err
+	}
+
+	entries, err := os.ReadDir(src)
+	if err != nil {
+		return err
+	}
+
+	for _, entry := range entries {
+		srcPath := filepath.Join(src, entry.Name())
+		dstPath := filepath.Join(dst, entry.Name())
+
+		if entry.IsDir() {
+			if err := copyDir(srcPath, dstPath); err != nil {
+				return err
+			}
+		} else {
+			if err := copyFile(srcPath, dstPath); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}