Go dependency management Tools-DEP

This is a creation in Article, where the information may have evolved or changed.

Go Dependency Management tool

Go Dependency Management tool

Environmental requirements

• Golang >= 1.9
• Dep

Current version:

dep: version     : devel build date  :  git hash    :  go version  : go1.10 go compiler : gc platform    : linux/amd64

Latest releaseForv0.4.1

Installation

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

If $GOPATH/bin not PATH , you will need to move the resulting dep file from $GOPATH/bin $GOBIAN the

Verify

$ depDep is a tool for managing dependencies for Go projectsUsage: "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 informationExamples:  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 projectUse "dep help [command]" for more information about a command.

Initialization

Executes initialization commands at the project root, dep parses all dependent packages required by the application at initialization, and draws a list of dependent packages

and generate vendor directories, Gopkg.toml Gopkg.lock files

Default initialization

$ dep init -v

Download directly from the corresponding network resource

Initialize from $gopath first

$ dep init -gopath -v

The command will be downloaded from the $GOPATH corresponding network resource by looking for the existing dependency package, if it does not exist.

Gopkg.toml

The file is dep init generated by dep a rule declaration that contains administrative behavior

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's used by a syste M "System2-data =" value "used by another system" [[Constraint]] # required:the Root import path of the project Bei  ng constrained.  Name = "Github.com/user/project" # recommended:the version constraint to enforce for the project.  # Note that only one of the "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 this could be used  by other independent systems [metadata] Key1 = "value, convey data to other systems" System1-data = "value Used by a system "System2-data =" value, is used by anotheR system " 

Gopkg.lock

The file consists dep ensure dep init of and generates a complete snapshot of the delivery of a project dependency graph, expressed as a series of [[project]] sections

# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.[[projects]]  branch = "master"  name = "github.com/golang/protobuf"  packages = [    "jsonpb",    "proto",    "protoc-gen-go/descriptor",    "ptypes",    "ptypes/any",    "ptypes/duration",    "ptypes/struct",    "ptypes/timestamp"  ]  revision = "bbd03ef6da3a115852eaf24c8a1c46aeb39aa175"

Common commands

DEP ensure

Parse the diagram from Gopkg.toml and in the project and Gopkg.lock get the required dependency packages

Used to ensure that local diagrams, locks, and dependent package manifests are fully consistent

DEP Ensure-add

# 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@^1.0.1

DEP Ensure-update

Gopkg.lockUpdate the contract dependencies in to the Gopkg.toml latest allowed version

At last

It is dep still in the official pilot phase but has indicated that production is safe to use

If there is any problem, you can leave a message to discuss