Go 1.16.4: manage third-party libraries with Mod

One , View the available versions of a third-party library :

Here to gin For example ：

[email protected]:~$ go list -m -versions github.com/gin-gonic/gin
github.com/gin-gonic/gin v1.1.1 v1.1.2 v1.1.3 v1.1.4 v1.3.0 v1.4.0
 v1.5.0 v1.6.0 v1.6.1 v1.6.2 v1.6.3 v1.7.0 v1.7.1 v1.7.2

explain ： Liu Hongdi's go The forest is a focus golang The blog of ,
           Address ：https://blog.csdn.net/weixin_43881017

explain ： author : Liu Hongdi mailbox : [email protected]

Two , View the locally downloaded version :

[email protected]:~$ ls /home/liuhongdi/go/pkg/mod/github.com/gin-gonic
[email protected]  [email protected]

explain ：/home/liuhongdi/go/pkg/mod yes GOMODCACHE The path of ,

            Used to save third-party libraries

example ：

[email protected]:~$ go env
...
GOMODCACHE="/home/liuhongdi/go/pkg/mod"

3、 ... and , Download the specified version of the third-party library :

explain ： stay @ Later specified version

[email protected]:~$ go get github.com/gin-gonic/[email protected]
go: downloading github.com/gin-gonic/gin v1.7.1

Check the effect after downloading :

[email protected]:~$ ls /home/liuhongdi/go/pkg/mod/github.com/gin-gonic
[email protected]  [email protected]  [email protected]

Four , Download the latest version of the third-party library :

[email protected]:~$ go get -u github.com/gin-gonic/gin
…

See the effect :

[email protected]:~$ ls /home/liuhongdi/go/pkg/mod/github.com/gin-gonic
[email protected]  [email protected]  [email protected]  [email protected]

5、 ... and , Use the specified version of the third-party library in the project :

explain ： It needs to be operated under the project directory

Check out the original version :

[email protected]:/data/liuhongdi/digv01$ more go.mod
module github.com/liuhongdi/digv01

go 1.16

require (
    github.com/gin-gonic/gin v1.6.3
    github.com/jinzhu/gorm v1.9.16
)

Specify the use of v1.7.2 edition

[email protected]:/data/liuhongdi/digv01$ go get github.com/gin-gonic/[email protected]
[email protected]:/data/liuhongdi/digv01$ more go.mod
module github.com/liuhongdi/digv01

go 1.16

require (
    github.com/gin-gonic/gin v1.7.2
    github.com/jinzhu/gorm v1.9.16
)

6、 ... and , View all dependencies of the third-party library of the specified project :

explain ： It needs to be operated under the project directory

[email protected]:/data/liuhongdi/digv01$ go list -m all
github.com/liuhongdi/digv01
github.com/PuerkitoBio/goquery v1.5.1
github.com/andybalholm/cascadia v1.1.0
...

7、 ... and , Manually remove a dependency from the project :

see go.mod

[email protected]:/data/liuhongdi/digv01$ more go.mod
module github.com/liuhongdi/digv01

go 1.16

require (
    github.com/gin-gonic/gin v1.7.0
    github.com/jinzhu/gorm v1.9.16
)

Delete

# -droprequire: Specify the dependencies to remove

[email protected]:/data/liuhongdi/digv01$ go mod edit -droprequire=github.com/gin-gonic/gin

See the effect

[email protected]:/data/liuhongdi/digv01$ more go.mod
module github.com/liuhongdi/digv01

go 1.16

require github.com/jinzhu/gorm v1.9.16

8、 ... and , Add a dependency manually in the project :

explain ： Version required

# -require: Specify the dependencies to add

[email protected]:/data/liuhongdi/digv01$ go mod edit -require=github.com/gin-gonic/[email protected]

See the effect

[email protected]:/data/liuhongdi/digv01$ more go.mod
module github.com/liuhongdi/digv01

go 1.16

require (
    github.com/gin-gonic/gin v1.7.1
    github.com/jinzhu/gorm v1.9.16
)

explain ： And execute under the project directory go  get The same command

Nine , see go Version of ：

[email protected]:/data/go/mod3$ go version
go version go1.16.4 linux/amd64