| // Copyright 2021 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| package main |
| |
| import ( |
| "os" |
| "path/filepath" |
| |
| "go.chromium.org/luci/common/errors" |
| ) |
| |
| // prepareOutDir ensures that a dir exists and does not have files that match |
| // clearPattern glob, e.g. "*.jsonl.gz". |
| func prepareOutDir(path, clearPattern string) error { |
| if err := os.MkdirAll(path, 0777); err != nil { |
| return err |
| } |
| |
| // Remove existing files. |
| existing, err := filepath.Glob(filepath.Join(path, clearPattern)) |
| if err != nil { |
| return err |
| } |
| for _, f := range existing { |
| if err := os.Remove(f); err != nil { |
| return errors.Annotate(err, "failed to remove %q", f).Err() |
| } |
| } |
| return nil |
| } |
