mirror of
https://github.com/golang/go
synced 2024-11-18 01:44:49 -07:00
95 lines
2.1 KiB
Go
95 lines
2.1 KiB
Go
|
// Copyright 2022 The Go Authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style
|
||
|
|
// license that can be found in the LICENSE file.
|
||
|
|
|
||
|
|
//go:build ignore
|
||
|
|
|
||
|
|
// Mkzip writes a zoneinfo.zip with the content of the current directory
|
||
|
|
// and its subdirectories, with no compression, suitable for package time.
|
||
|
|
//
|
||
|
|
// Usage:
|
||
|
|
//
|
||
|
|
// go run ../../mkzip.go ../../zoneinfo.zip
|
||
|
|
//
|
||
|
|
// We use this program instead of 'zip -0 -r ../../zoneinfo.zip *' to get
|
||
|
|
// a reproducible generator that does not depend on which version of the
|
||
|
|
// external zip tool is used or the ordering of file names in a directory
|
||
|
|
// or the current time.
|
||
|
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"archive/zip"
|
||
|
|
"bytes"
|
||
|
|
"flag"
|
||
|
|
"fmt"
|
||
|
|
"hash/crc32"
|
||
|
|
"io/fs"
|
||
|
|
"log"
|
||
|
|
"os"
|
||
|
|
"path/filepath"
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
func usage() {
|
||
|
|
fmt.Fprintf(os.Stderr, "usage: go run mkzip.go ../../zoneinfo.zip\n")
|
||
|
|
os.Exit(2)
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
log.SetPrefix("mkzip: ")
|
||
|
|
log.SetFlags(0)
|
||
|
|
flag.Usage = usage
|
||
|
|
flag.Parse()
|
||
|
|
args := flag.Args()
|
||
|
|
if len(args) != 1 || !strings.HasSuffix(args[0], ".zip") {
|
||
|
|
usage()
|
||
|
|
}
|
||
|
|
|
||
|
|
var zb bytes.Buffer
|
||
|
|
zw := zip.NewWriter(&zb)
|
||
|
|
seen := make(map[string]bool)
|
||
|
|
err := filepath.WalkDir(".", func(path string, d fs.DirEntry, err error) error {
|
||
|
|
if d.IsDir() {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
data, err := os.ReadFile(path)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
if strings.HasSuffix(path, ".zip") {
|
||
|
|
log.Fatalf("unexpected file during walk: %s", path)
|
||
|
|
}
|
||
|
|
name := filepath.ToSlash(path)
|
||
|
|
w, err := zw.CreateRaw(&zip.FileHeader{
|
||
|
|
Name: name,
|
||
|
|
Method: zip.Store,
|
||
|
|
CompressedSize64: uint64(len(data)),
|
||
|
|
UncompressedSize64: uint64(len(data)),
|
||
|
|
CRC32: crc32.ChecksumIEEE(data),
|
||
|
|
})
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
if _, err := w.Write(data); err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
seen[name] = true
|
||
|
|
return nil
|
||
|
|
})
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
if err := zw.Close(); err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
if len(seen) == 0 {
|
||
|
|
log.Fatalf("did not find any files to add")
|
||
|
|
}
|
||
|
|
if !seen["US/Eastern"] {
|
||
|
|
log.Fatalf("did not find US/Eastern to add")
|
||
|
|
}
|
||
|
|
if err := os.WriteFile(args[0], zb.Bytes(), 0666); err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
}
|