-
Notifications
You must be signed in to change notification settings - Fork 0
/
utils.go
150 lines (128 loc) · 2.57 KB
/
utils.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
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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
package utils
import (
"errors"
"fmt"
"os"
"os/exec"
"path/filepath"
"runtime"
"strconv"
"strings"
"time"
"github.com/github/hub/ui"
)
func Check(err error) {
if err != nil {
ui.Errorln(err)
os.Exit(1)
}
}
func ConcatPaths(paths ...string) string {
return strings.Join(paths, "/")
}
func BrowserLauncher() ([]string, error) {
browser := os.Getenv("BROWSER")
if browser == "" {
browser = searchBrowserLauncher(runtime.GOOS)
}
if browser == "" {
return nil, errors.New("Please set $BROWSER to a web launcher")
}
return strings.Split(browser, " "), nil
}
func searchBrowserLauncher(goos string) (browser string) {
switch goos {
case "darwin":
browser = "open"
case "windows":
browser = "cmd /c start"
default:
candidates := []string{"xdg-open", "cygstart", "x-www-browser", "firefox",
"opera", "mozilla", "netscape"}
for _, b := range candidates {
path, err := exec.LookPath(b)
if err == nil {
browser = path
break
}
}
}
return browser
}
func CommandPath(cmd string) (string, error) {
if runtime.GOOS == "windows" {
cmd = cmd + ".exe"
}
path, err := exec.LookPath(cmd)
if err != nil {
return "", err
}
path, err = filepath.Abs(path)
if err != nil {
return "", err
}
return filepath.EvalSymlinks(path)
}
func IsOption(confirm, short, long string) bool {
return strings.EqualFold(confirm, short) || strings.EqualFold(confirm, long)
}
type Color struct {
Red int64
Green int64
Blue int64
}
func NewColor(hex string) (*Color, error) {
red, err := strconv.ParseInt(hex[0:2], 16, 16)
if err != nil {
return nil, err
}
green, err := strconv.ParseInt(hex[2:4], 16, 16)
if err != nil {
return nil, err
}
blue, err := strconv.ParseInt(hex[4:6], 16, 16)
if err != nil {
return nil, err
}
return &Color{
Red: red,
Green: green,
Blue: blue,
}, nil
}
func (c *Color) Brightness() float32 {
return (0.299*float32(c.Red) + 0.587*float32(c.Green) + 0.114*float32(c.Blue)) / 255
}
func TimeAgo(t time.Time) string {
duration := time.Since(t)
minutes := duration.Minutes()
hours := duration.Hours()
days := hours / 24
months := days / 30
years := months / 12
var val int
var unit string
if minutes < 1 {
return "now"
} else if hours < 1 {
val = int(minutes)
unit = "minute"
} else if days < 1 {
val = int(hours)
unit = "hour"
} else if months < 1 {
val = int(days)
unit = "day"
} else if years < 1 {
val = int(months)
unit = "month"
} else {
val = int(years)
unit = "year"
}
var plural string
if val > 1 {
plural = "s"
}
return fmt.Sprintf("%d %s%s ago", val, unit, plural)
}