gex

The implementation of clarify best practice for tool dependencies.

See golang/go#25922 (comment)

Features

• Manage versions of tools dependencies, and build them with specified version
• Does not introduce new mechanisms to manage tool dependencies
• Only 2 commands that you use: --add and --build

Usage

gex --add [packages...]

Add a new tool to dependencies:

$ gex --add github.com/golang/mock/mockgen

The tool will be managed in tools.go and its version will be managed by Modules or dep.

$ cat tools.go
// Code generated by github.com/izumin5210/gex. DO NOT EDIT.

// +build tools

package tools

// tool dependencies
import (
        _ "github.com/golang/mock/mockgen"
)

$ cat go.mod | grep mock
        github.com/golang/mock v1.1.1 // indirect

gex --build

Build executable binaries into $PWD/bin.

$ gex --build

gex [command] [args...]

Execute command that managed in tools.go and go.mod. gex will build the executable binary automatically if needed.

$ gex mockgen
# prints mockgen's help text...

Installation

To install gex, you can use go get.

$ go get github.com/izumin5210/gex/cmd/gex

Requirements

gex depends on dep or Modules to manage tool dependencies,