Function copyDirEntries

internal/cli/build.go:487–558

(sourceFs fs.FS, sourceDir, targetDir string, ignoreDir ...string)

}

func copyDirEntries(sourceFs fs.FS, sourceDir, targetDir string, ignoreDir ...string) (err error) {
	err = dir.CreateDirIfNotExist(targetDir)
	if err != nil {
		return err
	}
	ignoreThisDir := func(path string) bool {
		for _, s := range ignoreDir {
			if strings.HasPrefix(path, s) {
				return true
			}
			// Also ignore nested occurrences, e.g. src/plugins/foo/node_modules
			if strings.Contains(path, string(filepath.Separator)+s) {
				return true
			}
			if strings.Contains(path, "/"+s) {
				return true
			}
		}
		return false
	}

	err = fs.WalkDir(sourceFs, sourceDir, func(path string, d fs.DirEntry, err error) error {
		if err != nil {
			return err
		}
		if ignoreThisDir(path) {
			return nil
		}

		// Convert the path to use forward slashes, important because we use embedded FS which always uses forward slashes
		path = filepath.ToSlash(path)

		// Construct the absolute path for the source file/directory
		srcPath := filepath.Join(sourceDir, path)
		srcPath = filepath.ToSlash(srcPath)

		// Construct the absolute path for the destination file/directory
		dstPath := filepath.Join(targetDir, path)

		if d.IsDir() {
			// Create the directory in the destination
			err := os.MkdirAll(dstPath, os.ModePerm)
			if err != nil {
				return fmt.Errorf("failed to create directory %s: %w", dstPath, err)
			}
		} else {
			// Open the source file
			srcFile, err := sourceFs.Open(srcPath)
			if err != nil {
				return fmt.Errorf("failed to open source file %s: %w", srcPath, err)
			}
			defer srcFile.Close()

			// Create the destination file
			dstFile, err := os.Create(dstPath)
			if err != nil {
				return fmt.Errorf("failed to create destination file %s: %w", dstPath, err)
			}