golang Development :( iv) use the package manager glide

glide is golang project development is particularly important software, without it, the project golang probably not be published.

Why use glide

Usually we developed Go project, the use of third-party packages when they are used directly go get to acquire third-party packages, but go get acquired to develop the package is a branch of the project, we developed when it touches can not very concerned about. But if the production environment, directly go get a very risky, because we all know, develop a development branch, defenders will push new code to the development branch, if we use go get it, probably every time we publish version get to third-party code is inconsistent, so the project will have a particularly large risk. We certainly hope to go get a third-party package to our project, they can set up a stable version to use. But go get it unable to meet the most common requirements. Then, glide it turned out.

How to use glide

Installation glide

mac系统或者Linux系统安装
curl https://glide.sh/get | sh

Mac也可brew安装
brew install glide

Ubuntu也可以apt-get安装
sudo add-apt-repository ppa:masterminds/glide && sudo apt-get update
sudo apt-get install glide

After the complete installation was successful test
glide -h

NAME:
   glide - Vendor Package Management for your Go projects.

   Each project should have a 'glide.yaml' file in the project directory. Files
   look something like this:

       package: github.com/Masterminds/glide
       imports:
       - package: github.com/Masterminds/cookoo
         version: 1.1.0
       - package: github.com/kylelemons/go-gypsy
         subpackages:
         - yaml

   For more details on the 'glide.yaml' files see the documentation at
   https://glide.sh/docs/glide.yaml


USAGE:
   glide [global options] command [command options] [arguments...]

VERSION:
   v0.13.2

COMMANDS:
     create, init       Initialize a new project, creating a glide.yaml file
     config-wizard, cw  Wizard that makes optional suggestions to improve config in a glide.yaml file.
     get                Install one or more packages into `vendor/` and add dependency to glide.yaml.

The above message appears on the screen indicate the installation was successful.
Introduce a few more usually develop a few commands, and these commands to master the project development on the basic question of nothing.

glide init --初始化项目，生成glide.yaml
glide install --安装第三方包
glide up --更新第三方包

For chestnuts

Be UUID use cases
first go get github.com/satori/go.uuid

package main

import (
    "fmt"
    uuid2 "github.com/satori/go.uuid"
)

func main() {
    uuid,_ := uuid2.NewV4()

    fmt.Println(uuid)
}

RUN

10c2b95f-b7c2-45f3-b5a3-a69020b9a7f7
Process finished with exit code 0

Then enter into the project directory

glide init
会生成一个包含UUID包的yaml 文件
package: test
import:
- package: github.com/satori/go.uuid

We give this package plus the version number

package: test
import:
- package: github.com/satori/go.uuid
- version: 1.2.0
然后执行 
glide install
显示里面有设置版本号的信息
[INFO]  --> Fetching updates for github.com/satori/go.uuid
[INFO]  --> Setting version for github.com/satori/go.uuid to v1.2.0.
我们看到在项目包里面生成一个 vendor的文件夹，vendor里面有个uuid 的包
vendor/github.com/satori/go.uuid,以后通过glide管理的包文件就在vendor里面。
如果我们想把 version: 1.2.0 该为 version: 1.1.0.修改yaml文件的版本号，然后执行
glide up
[INFO]  --> Fetching updates for github.com/satori/go.uuid
[INFO]  --> Setting version for github.com/satori/go.uuid to v1.1.0.
vendor里面的版本就切换到了v1.1.0

glide particularly useful, especially useful now.