-
Notifications
You must be signed in to change notification settings - Fork 11
/
extra_os.go
218 lines (194 loc) · 5.52 KB
/
extra_os.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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
package template
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"os/user"
"time"
"github.com/coveo/gotemplate/collections"
"github.com/coveo/gotemplate/utils"
"github.com/sergi/go-diff/diffmatchpatch"
)
const (
osBase = "Operating systems functions"
)
var osFuncs = dictionary{
"diff": diff,
"exists": fileExists,
"glob": glob,
"group": userGroup,
"home": userHome,
"isDir": isDir,
"isExecutable": isExecutable,
"isFile": isFile,
"isReadable": isReadable,
"isWriteable": isWriteable,
"lastMod": lastMod,
"lookPath": lookPath,
"mode": fileMode,
"pwd": utils.Pwd,
"save": saveToFile,
"size": fileSize,
"stat": os.Stat,
"user": user.Current,
"username": username,
}
var osFuncsArgs = arguments{
"diff": {"text1", "text2"},
"exists": {"filename"},
"isDir": {"filename"},
"isExecutable": {"filename"},
"isFile": {"filename"},
"isReadable": {"filename"},
"isWriteable": {"filename"},
"lastMod": {"filename"},
"mode": {"filename"},
"save": {"filename", "object"},
"size": {"filename"},
}
var osFuncsAliases = aliases{
"diff": {"difference"},
"exists": {"fileExists", "isExist"},
"glob": {"expand"},
"group": {"userGroup"},
"home": {"homeDir", "homeFolder"},
"isDir": {"isDirectory", "isFolder"},
"lastMod": {"lastModification", "lastModificationTime"},
"lookPath": {"whereIs", "look", "which", "type"},
"mode": {"fileMode"},
"pwd": {"currentDir"},
"save": {"write", "writeTo"},
"size": {"fileSize"},
"stat": {"fileStat"},
"user": {"currentUser"},
}
var osFuncsHelp = descriptions{
"diff": "Returns a colored string that highlight differences between supplied texts.",
"exists": "Determines if a file exists or not.",
"glob": "Returns the expanded list of supplied arguments (expand *[]? on filename).",
"group": "Returns the current user group information (user.Group object).",
"home": "Returns the home directory of the current user.",
"isDir": "Determines if the file is a directory.",
"isExecutable": "Determines if the file is executable by the current user.",
"isFile": "Determines if the file is a file (i.e. not a directory).",
"isReadable": "Determines if the file is readable by the current user.",
"isWriteable": "Determines if the file is writeable by the current user.",
"lastMod": "Returns the last modification time of the file.",
"lookPath": "Returns the location of the specified executable (returns empty string if not found).",
"mode": "Returns the file mode.",
"pwd": "Returns the current working directory.",
"save": "Save object to file.",
"size": "Returns the file size.",
"stat": "Returns the file Stat information (os.Stat object).",
"user": "Returns the current user information (user.User object).",
"username": "Returns the current user name.",
}
func (t *Template) addOSFuncs() {
t.AddFunctions(osFuncs, osBase, FuncOptions{
FuncHelp: osFuncsHelp,
FuncArgs: osFuncsArgs,
FuncAliases: osFuncsAliases,
})
}
func fileExists(file interface{}) (bool, error) {
if _, err := os.Stat(fmt.Sprint(file)); err != nil {
if os.IsNotExist(err) {
err = nil
}
return false, err
}
return true, nil
}
func fileMode(file interface{}) (os.FileMode, error) {
stat, err := os.Stat(fmt.Sprint(file))
if err != nil {
return 0, err
}
return stat.Mode(), nil
}
func fileSize(file interface{}) (int64, error) {
stat, err := os.Stat(fmt.Sprint(file))
if err != nil {
return 0, err
}
return stat.Size(), nil
}
func isDir(file interface{}) (bool, error) {
stat, err := os.Stat(fmt.Sprint(file))
if err != nil {
return false, err
}
return stat.IsDir(), nil
}
func isFile(file interface{}) (bool, error) {
isDir, err := isDir(file)
if err != nil {
return false, err
}
return !isDir, nil
}
func isReadable(file interface{}) (bool, error) {
stat, err := os.Stat(fmt.Sprint(file))
if err != nil {
return false, err
}
return stat.Mode()&0400 != 0, nil
}
func isWriteable(file interface{}) (bool, error) {
stat, err := os.Stat(fmt.Sprint(file))
if err != nil {
return false, err
}
return stat.Mode()&0200 != 0, nil
}
func isExecutable(file interface{}) (bool, error) {
stat, err := os.Stat(fmt.Sprint(file))
if err != nil {
return false, err
}
return stat.Mode()&0100 != 0 && !stat.IsDir(), nil
}
func lastMod(file interface{}) (time.Time, error) {
stat, err := os.Stat(fmt.Sprint(file))
if err != nil {
return time.Time{}, err
}
return stat.ModTime(), nil
}
func glob(args ...interface{}) collections.IGenericList {
return collections.AsList(utils.GlobFuncTrim(args...))
}
func diff(text1, text2 interface{}) interface{} {
dmp := diffmatchpatch.New()
diffs := dmp.DiffMain(fmt.Sprint(text1), fmt.Sprint(text2), true)
return dmp.DiffPrettyText(diffs)
}
func saveToFile(filename string, object interface{}) (string, error) {
return "", ioutil.WriteFile(filename, []byte(fmt.Sprint(object)), 0644)
}
func username() string {
u, err := user.Current()
if err != nil {
return ""
}
return u.Username
}
func userGroup() (*user.Group, error) {
u, err := user.Current()
if err != nil {
return nil, err
}
return user.LookupGroupId(u.Gid)
}
func userHome() string {
u, err := user.Current()
if err != nil {
return os.Getenv("HOME")
}
return u.HomeDir
}
func lookPath(file interface{}) string {
path, _ := exec.LookPath(fmt.Sprint(file))
return path
}