| // Copyright 2019 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package main |
| |
| import ( |
| "bufio" |
| "fmt" |
| "log" |
| "os" |
| "regexp" |
| "strings" |
| ) |
| |
| func main() { |
| log.SetFlags(0) |
| log.SetPrefix("sanitize_patch_dates: ") |
| if len(os.Args) == 1 { |
| log.Fatalf("usage: sanitize_patch_dates *.patch") |
| } |
| for _, arg := range os.Args[1:] { |
| if err := sanitize(arg); err != nil { |
| log.Fatal(err) |
| } |
| } |
| } |
| |
| var dateRegexp = regexp.MustCompile("20..-..-.. .*") |
| |
| func sanitize(filename string) (err error) { |
| r, err := os.Open(filename) |
| if err != nil { |
| return err |
| } |
| defer r.Close() |
| |
| tempFilename := filename + "~" |
| w, err := os.Create(tempFilename) |
| if err != nil { |
| return err |
| } |
| defer func() { |
| if w == nil { |
| return |
| } |
| if cerr := w.Close(); err == nil && cerr != nil { |
| err = cerr |
| } |
| }() |
| |
| s := bufio.NewScanner(r) |
| for s.Scan() { |
| line := s.Text() |
| if strings.HasPrefix(line, "+++") || strings.HasPrefix(line, "---") { |
| line = dateRegexp.ReplaceAllLiteralString(line, "2000-01-01 00:00:00.000000000 -0000") |
| } |
| if _, err := fmt.Fprintln(w, line); err != nil { |
| return err |
| } |
| } |
| if err := s.Err(); err != nil { |
| return err |
| } |
| |
| if err := w.Close(); err != nil { |
| return err |
| } |
| w = nil |
| if err := os.Rename(tempFilename, filename); err != nil { |
| return err |
| } |
| return nil |
| } |