1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
// Copyright 2018 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.
// The txtar-c command archives a directory tree as a txtar archive printed to standard output.
//
// Usage:
//
// txtar-c /path/to/dir >saved.txtar
//
// See https://godoc.org/golang.org/x/tools/txtar for details of the format
// and how to parse a txtar file.
package main
import (
"bytes"
"flag"
"fmt"
"log"
"os"
"path/filepath"
"strings"
"unicode/utf8"
"github.com/rogpeppe/go-internal/txtar"
)
func usage() {
fmt.Fprintf(os.Stderr, "usage: txtar-c dir >saved.txtar\n")
flag.PrintDefaults()
os.Exit(2)
}
var (
quoteFlag = flag.Bool("quote", false, "quote files that contain txtar file markers instead of failing")
allFlag = flag.Bool("a", false, "include dot files too")
)
func main() {
flag.Usage = usage
flag.Parse()
if flag.NArg() != 1 {
usage()
}
log.SetPrefix("txtar-c: ")
log.SetFlags(0)
dir := flag.Arg(0)
a := new(txtar.Archive)
dir = filepath.Clean(dir)
if err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if path == dir {
return nil
}
name := info.Name()
if strings.HasPrefix(name, ".") && !*allFlag {
if info.IsDir() {
return filepath.SkipDir
}
return nil
}
if !info.Mode().IsRegular() {
return nil
}
data, err := os.ReadFile(path)
if err != nil {
return err
}
if !utf8.Valid(data) {
log.Printf("%s: ignoring file with invalid UTF-8 data", path)
return nil
}
if len(data) > 0 && !bytes.HasSuffix(data, []byte("\n")) {
log.Printf("%s: adding final newline", path)
data = append(data, '\n')
}
filename := strings.TrimPrefix(path, dir+string(filepath.Separator))
if txtar.NeedsQuote(data) {
if !*quoteFlag {
log.Printf("%s: ignoring file with txtar marker in", path)
return nil
}
data, err = txtar.Quote(data)
if err != nil {
log.Printf("%s: ignoring unquotable file: %v", path, err)
return nil
}
a.Comment = append(a.Comment, []byte("unquote "+filename+"\n")...)
}
a.Files = append(a.Files, txtar.File{
Name: filepath.ToSlash(filename),
Data: data,
})
return nil
}); err != nil {
log.Fatal(err)
}
data := txtar.Format(a)
os.Stdout.Write(data)
}
|
