forked from drone/go-scm
-
Notifications
You must be signed in to change notification settings - Fork 0
/
util.go
97 lines (85 loc) · 2.36 KB
/
util.go
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
// Copyright 2017 Drone.IO Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package scm
import (
"regexp"
"strconv"
"strings"
)
// regular expression to extract the pull request number
// from the git ref (e.g. refs/pulls/{d}/head)
var re = regexp.MustCompile("\\d+")
// Split splits the full repository name into segments.
func Split(s string) (owner, name string) {
parts := strings.SplitN(s, "/", 2)
switch len(parts) {
case 1:
name = parts[0]
case 2:
owner = parts[0]
name = parts[1]
}
return
}
// Join joins the repository owner and name segments to
// create a fully qualified repository name.
func Join(owner, name string) string {
return owner + "/" + name
}
// URLJoin joins the given paths so that there is only ever one '/' character between the paths
func URLJoin(paths ...string) string {
var buffer strings.Builder
last := len(paths) - 1
for i, path := range paths {
p := path
if i > 0 {
buffer.WriteString("/")
p = strings.TrimPrefix(p, "/")
}
if i < last {
p = strings.TrimSuffix(p, "/")
}
buffer.WriteString(p)
}
return buffer.String()
}
// TrimRef returns ref without the path prefix.
func TrimRef(ref string) string {
ref = strings.TrimPrefix(ref, "refs/heads/")
ref = strings.TrimPrefix(ref, "refs/tags/")
return ref
}
// ExpandRef returns name expanded to the fully qualified
// reference path (e.g refs/heads/master).
func ExpandRef(name, prefix string) string {
prefix = strings.TrimSuffix(prefix, "/")
if strings.HasPrefix(name, "refs/") {
return name
}
return prefix + "/" + name
}
// ExtractPullRequest returns name extraced pull request
// number from the reference path.
func ExtractPullRequest(ref string) int {
s := re.FindString(ref)
d, _ := strconv.Atoi(s)
return d
}
// IsBranch returns true if the reference path points to
// a branch.
func IsBranch(ref string) bool {
return strings.HasPrefix(ref, "refs/heads/")
}
// IsTag returns true if the reference path points to
// a tag object.
func IsTag(ref string) bool {
return strings.HasPrefix(ref, "refs/tags/")
}
// IsPullRequest returns true if the reference path points
// to a pull request object.
func IsPullRequest(ref string) bool {
return strings.HasPrefix(ref, "refs/pull/") ||
strings.HasPrefix(ref, "refs/pull-request/") ||
strings.HasPrefix(ref, "refs/merge-requests/")
}