aboutsummaryrefslogtreecommitdiffstats
path: root/build/generate-gitignores.go
blob: d0b972e803e0064907e50286625ddd2ef3461a73 (plain)
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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
//go:build ignore
// +build ignore

package main

import (
	"archive/tar"
	"compress/gzip"
	"flag"
	"fmt"
	"io"
	"io/ioutil"
	"log"
	"net/http"
	"os"
	"path"
	"path/filepath"
	"strings"

	"code.gitea.io/gitea/modules/util"
)

func main() {
	var (
		prefix         = "gitea-gitignore"
		url            = "https://api.github.com/repos/github/gitignore/tarball"
		githubApiToken = ""
		githubUsername = ""
		destination    = ""
	)

	flag.StringVar(&destination, "dest", "options/gitignore/", "destination for the gitignores")
	flag.StringVar(&githubUsername, "username", "", "github username")
	flag.StringVar(&githubApiToken, "token", "", "github api token")
	flag.Parse()

	file, err := ioutil.TempFile(os.TempDir(), prefix)

	if err != nil {
		log.Fatalf("Failed to create temp file. %s", err)
	}

	defer util.Remove(file.Name())

	req, err := http.NewRequest("GET", url, nil)
	if err != nil {
		log.Fatalf("Failed to download archive. %s", err)
	}

	if len(githubApiToken) > 0 && len(githubUsername) > 0 {
		req.SetBasicAuth(githubUsername, githubApiToken)
	}

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		log.Fatalf("Failed to download archive. %s", err)
	}
	defer resp.Body.Close()

	if _, err := io.Copy(file, resp.Body); err != nil {
		log.Fatalf("Failed to copy archive to file. %s", err)
	}

	if _, err := file.Seek(0, 0); err != nil {
		log.Fatalf("Failed to reset seek on archive. %s", err)
	}

	gz, err := gzip.NewReader(file)

	if err != nil {
		log.Fatalf("Failed to gunzip the archive. %s", err)
	}

	tr := tar.NewReader(gz)

	filesToCopy := make(map[string]string, 0)

	for {
		hdr, err := tr.Next()

		if err == io.EOF {
			break
		}

		if err != nil {
			log.Fatalf("Failed to iterate archive. %s", err)
		}

		if filepath.Ext(hdr.Name) != ".gitignore" {
			continue
		}

		if hdr.Typeflag == tar.TypeSymlink {
			fmt.Printf("Found symlink %s -> %s\n", hdr.Name, hdr.Linkname)
			filesToCopy[strings.TrimSuffix(filepath.Base(hdr.Name), ".gitignore")] = strings.TrimSuffix(filepath.Base(hdr.Linkname), ".gitignore")
			continue
		}

		out, err := os.Create(path.Join(destination, strings.TrimSuffix(filepath.Base(hdr.Name), ".gitignore")))

		if err != nil {
			log.Fatalf("Failed to create new file. %s", err)
		}

		defer out.Close()

		if _, err := io.Copy(out, tr); err != nil {
			log.Fatalf("Failed to write new file. %s", err)
		} else {
			fmt.Printf("Written %s\n", out.Name())
		}
	}

	for dst, src := range filesToCopy {
		// Read all content of src to data
		src = path.Join(destination, src)
		data, err := ioutil.ReadFile(src)
		if err != nil {
			log.Fatalf("Failed to read src file. %s", err)
		}
		// Write data to dst
		dst = path.Join(destination, dst)
		err = ioutil.WriteFile(dst, data, 0644)
		if err != nil {
			log.Fatalf("Failed to write new file. %s", err)
		}
		fmt.Printf("Written (copy of %s) %s\n", src, dst)
	}

	fmt.Println("Done")
}