go 读取 ini文件 并修改

安装

官方网站
https://ini.unknwon.io/docs/intro/getting_started

go get gopkg.in/ini.v1

配置

tmp
    my.ini
    main.go

my.ini

# possible values : production, development
app_mode = development

[paths]
# Path to where grafana can store temp files, sessions, and the sqlite3 db (if that is used)
data = /home/git/grafana

[server]
# Protocol (http or https)
protocol = http

# The http port  to use
http_port = 9999

# Redirect to correct domain if host header does not match domain
# Prevents DNS rebinding attacks
enforce_domain = true

main.go

package main

import (
    "fmt"
    "os"

    "gopkg.in/ini.v1"
)

func main() {

    dir, _ := os.Getwd()
    fmt.Println(dir)
    path := dir + "\\src\\test\\tmp\\"   // windows下的路径  需要注意修改一下   默认是gopath
    path_name := path + "my.ini"
    cfg, err := ini.Load(path_name)
    if err != nil {
        fmt.Printf("Fail to read file: %v", err)
        os.Exit(1)
    }

    // 典型读取操作，默认分区可以使用空字符串表示
    fmt.Println("App Mode:", cfg.Section("").Key("app_mode").String())
    fmt.Println("Data Path:", cfg.Section("paths").Key("data").String())

    // 我们可以做一些候选值限制的操作
    fmt.Println("Server Protocol:",
        cfg.Section("server").Key("protocol").In("http", []string{"http", "https"}))
    // 如果读取的值不在候选列表内，则会回退使用提供的默认值
    fmt.Println("Email Protocol:",
        cfg.Section("server").Key("protocol").In("smtp", []string{"imap", "smtp"}))

    // 试一试自动类型转换
    fmt.Printf("Port Number: (%[1]T) %[1]d\n", cfg.Section("server").Key("http_port").MustInt(9999))
    fmt.Printf("Enforce Domain: (%[1]T) %[1]v\n", cfg.Section("server").Key("enforce_domain").MustBool(false))

    // 差不多了，修改某个值然后进行保存
    cfg.Section("").Key("app_mode").SetValue("production")
    cfg.SaveTo(path+"my.ini.local")
}

注意路径

结果

App Mode: development
Data Path: /home/git/grafana
Server Protocol: http
Email Protocol: smtp
Port Number: (int) 9999
Enforce Domain: (bool) true

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