4.12 آموزش کار با ini

1$ mkdir -p /tmp/ini 
2$ cd /tmp/ini 
3$ touch my.ini main.go 
4$ tree . . 
5├── main.go 
6└── my.ini

 1# possible values : production, development 
 2app_mode = development 
 3
 4[paths] 
 5# Path to where grafana can store temp files, sessions, and the sqlite3 db (if that is used) 
 6data = /home/git/grafana
 7 
 8[server] 
 9# Protocol (http or https) 
10protocol = http 
11
12# The http port to use 
13http_port = 9999 
14# Redirect to correct domain if host header does not match domain # Prevents DNS rebinding attacks 
15enforce_domain = true

 1package main 
 2import (
 3"fmt" 
 4"os" 
 5"gopkg.in/ini.v1"
 6) 
 7
 8func main() { 
 9cfg, err := ini.Load("my.ini")
10
11if err != nil { 
12fmt.Printf("Fail to read file: %v", err) 
13os.Exit(1) 
14}
15
16// Classic read of values, default section can be represented as empty string 
17fmt.Println("App Mode:", cfg.Section("").Key("app_mode").String()) 
18fmt.Println("Data Path:", cfg.Section("paths").Key("data").String()) 
19
20// Let's do some candidate value limitation 
21fmt.Println("Server Protocol:", 
22cfg.Section("server").Key("protocol").In("http", []string{"http", "https"})) 
23
24// Value read that is not in candidates will be discarded and fall back to given default value
25fmt.Println("Email Protocol:", cfg.Section("server").Key("protocol").In("smtp", []string{"imap", "smtp"})) 
26
27// Try out auto-type conversion 
28fmt.Printf("Port Number: (%[1]T) %[1]d\n", cfg.Section("server").Key("http_port").MustInt(9999)) 
29
30fmt.Printf("Enforce Domain: (%[1]T) %[1]v\n", cfg.Section("server").Key("enforce_domain").MustBool(false))
31
32// Now, make some changes and save it 
33cfg.Section("").Key("app_mode").SetValue("production") cfg.SaveTo("my.ini.local") 
34
35}

 1$ go run main.go
 2App Mode: development
 3Data Path: /home/git/grafana 
 4Server Protocol: http 
 5Email Protocol: smtp Port Number: (int) 9999 
 6Enforce Domain: (bool) true 
 7
 8$ cat my.ini.local 
 9# possible values : production, development 
10app_mode = production [paths] 
11# Path to where grafana can store temp files, sessions, and the sqlite3 db (if that is used) data = /home/git/grafana 
12...

1cfg, err := ini.Load( []byte("raw data"),  // Raw data  
2					 "filename",           // File 
3					 ioutil.NopCloser(bytes.NewReader([]byte("some other data"))), 
4)

1cfg := ini.Empty()

1err := cfg.Append("other file", []byte("other raw data"))

1cfg, err := ini.LooseLoad("filename", "filename_404")

1// ... 
2err = cfg.SaveTo("my.ini") 
3err = cfg.SaveToIndent("my.ini", "\t")

1sec, err := cfg.GetSection("section name")

1err := cfg.NewSection("new section")

1secs := cfg.Sections() 
2names := cfg.SectionStrings()

1key, err := cfg.Section("").GetKey("app_mode")