Go依赖管理工具
Go dependency management tool
环境要求
- Golang >= 1.9
- Dep
目前版本：
@H_301_14@dep: version : devel build date : git hash : go version : go1.10 go compiler : gc platform : linux/amd64Latest release为v0.4.1
安装
@H_301_14@go get -u github.com/golang/dep/cmd/dep若$GOPATH/bin不在PATH下，则需要将生成的dep文件从$GOPATH/bin移动至$GOBIAN下
验证
@H_301_14@$ 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 prune Pruning is now performed automatically by dep ensure. version Show the dep version information 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.初始化
在项目根目录执行初始化命令，dep在初始化时会分析应用程序所需要的所有依赖包，得出依赖包清单
并生成vendor目录，Gopkg.toml、Gopkg.lock文件
默认初始化
@H_301_14@$ dep init -v直接从对应网络资源处下载
优先从$GOPATH初始化
@H_301_14@$ dep init -gopath -v该命令会先从$GOPATH查找既有的依赖包，若不存在则从对应网络资源处下载
Gopkg.toml
@H_301_14@required = ["github.com/user/thing/cmd/thing"] ignored = [ "github.com/user/project/pkgX","bitbucket.org/user/project/pkgA/pkgY" ] [Metadata] key1 = "value that convey data to other systems" system1-data = "value that is used by a system" system2-data = "value that is used by another system" [[constraint]] # required: the root import path of the project being constrained. name = "github.com/user/project" # Recommended: the version constraint to enforce for the project. # Note that only one of "branch","version" or "revision" can be specified. version = "1.0.0" branch = "master" revision = "abc123" # Optional: an alternate location (URL or import path) for the project's source. source = "https://github.com/myfork/package.git" # Optional: Metadata about the constraint or override that could be used by other independent systems [Metadata] key1 = "value that convey data to other systems" system1-data = "value that is used by a system" system2-data = "value that is used by another system"Gopkg.lock
该文件由dep ensure和dep init生成，包含一个项目依赖关系图的传递完整快照，表示为一系列[[project]]节
常用命令
dep ensure
从项目中的Gopkg.toml和Gopkg.lock中分析关系图，并获取所需的依赖包
用于确保本地的关系图、锁、依赖包清单完全一致
dep ensure -add
@H_301_14@# 引入该依赖包的最新版本 dep ensure -add github.com/pkg/foo # 引入具有特定约束（指定版本）的依赖包 dep ensure -add github.com/pkg/foo@^1.0.1dep ensure -update
将Gopkg.lock中的约定依赖项更新为Gopkg.toml允许的最新版本
最后
目前dep还在官方试验阶段，但已表示生产可安全使用
如果出现什么问题，大家可以一起留个言讨论讨论
