Go——依赖管理

$ curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  5140  100  5140    0     0   3346      0  0:00:01  0:00:01 --:--:--  3346
ARCH = amd64
OS = linux
Will install into /home/baxiang/go/bin
Fetching https://github.com/golang/dep/releases/latest..
Release Tag = v0.5.0
Fetching https://github.com/golang/dep/releases/tag/v0.5.0..
Fetching https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64..
Setting executable permissions.
Moving executable to /home/baxiang/go/bin/dep

$ brew install dep
$ brew upgrade dep

sudo apt install go-dep

go get -u github.com/golang/dep/cmd/dep

$ dep
Dep is a tool for managing dependencies for Go projects

Usage: "dep [command]"

Commands:

  init     Set up a new Go project, or migrate an existing one
  status   Report the status of the project's dependencies
  ensure   Ensure a dependency is safely vendored in the project
  version  Show the dep version information
  check    Check if imports, Gopkg.toml, and Gopkg.lock are in sync

Examples:
  dep init                               set up a new project
  dep ensure                             install the project's dependencies
  dep ensure -update                     update the locked versions of all dependencies
  dep ensure -add github.com/pkg/errors  add a dependency to the project

Use "dep help [command]" for more information about a command.

$ tree
.
├── Gopkg.lock
├── Gopkg.toml
└── vendor

1 directory, 2 files

[[constraint]]
     name = "github.com/pkg/errors"
     source = "github.com/pkg/errors"
     version = "0.8.1"

[[constraint]]
     name = "github.com/gorilla/websocket"
     source = "github.com/gorilla/websocket"
     version = "1.4.0"

[[constraint]]
     name = "github.com/skip2/go-qrcode"
     source = "github.com/skip2/go-qrcode"
     branch = "master"

export GO111MODULE=on
bogon:~ baxiang$ source ~/.bash_profile
bogon:~ baxiang$ echo $GO111MODULE
auto

go mod help
Go mod provides access to operations on modules.

Note that support for modules is built into all the go commands,
not just 'go mod'. For example, day-to-day adding, removing, upgrading,
and downgrading of dependencies should be done using 'go get'.
See 'go help modules' for an overview of module functionality.

Usage:

    go mod <command> [arguments]

The commands are:

    download    download modules to local cache
    edit        edit go.mod from tools or scripts
    graph       print module requirement graph
    init        initialize new module in current directory
    tidy        add missing and remove unused modules
    vendor      make vendored copy of dependencies
    verify      verify dependencies have expected content
    why         explain why packages or modules are needed

Use "go help mod <command>" for more information about a command.

go mod init
go: modules disabled inside GOPATH/src by GO111MODULE=auto; see 'go help modules'

export GO111MODULE=on
$  go mod init server
go: creating new go.mod: module mServer
go: copying requirements from Gopkg.lock

package main

import (
    "github.com/gin-contrib/pprof"
    "github.com/gin-gonic/gin"
)

func main() {
    router := gin.Default()
    pprof.Register(router)
    router.Run(":8000")
}

go get -u github.com/gin-gonic/gin

module baxiang.cn/GoNote

go 1.12

replace (
    golang.org/x/text => github.com/golang/text v0.3.0
    golang.org/x/text v0.3.0 => github.com/golang/text v0.3.0
)

require (
    github.com/gin-contrib/pprof v1.2.0
    github.com/gin-contrib/sse v0.0.0-20190301062529-5545eab6dad3 // indirect
    github.com/gin-gonic/gin v1.3.0
    github.com/golang/protobuf v1.3.1 // indirect
    github.com/json-iterator/go v1.1.6 // indirect
    github.com/mattn/go-isatty v0.0.7 // indirect
    github.com/ugorji/go v1.1.4 // indirect
)

go mod vendor 

go build -mod=vendor

:gin-gonic baxiang$ tree  -L 1
.
├── gin@v0.0.0-20190328061400-ce20f107f5dc
├── gin@v1.1.4
└── gin@v1.3.0

3 directories, 0 files

go get github.com/gorilla/mux    # 匹配最新的一个 tag
go get github.com/gorilla/mux@latest    # 和上面一样
go get github.com/gorilla/mux@v1.6.2    # 匹配 v1.6.2
go get github.com/gorilla/mux@e3702bed2 # 匹配 v1.6.2
go get github.com/gorilla/mux@c856192   # 匹配 c85619274f5d
go get github.com/gorilla/mux@master    # 匹配 master 分支

replace (
    golang.org/x/text => github.com/golang/text latest
    golang.org/x/text v0.3.0 => github.com/golang/text v0.3.0
)

export GOPROXY=https://goproxy.io

$env:GOPROXY = "https://goproxy.io"