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Setup Golang Enviroment on Mac

Villim Wong 61 阅读
 

1. Install gcc compiler

1.1 Download

After register Apple Developer Account, you will be able to download Command Line Tools ( macOS xx.xx ) for Xcode x.x from Downloads for Apple Developers

1.2 Install

After install, you would see similar information:

➜  ~ gcc -v
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/usr/include/c++/4.2.1
Apple LLVM version 9.0.0 (clang-900.0.39.2)
Target: x86_64-apple-darwin17.4.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

2. Installing Golang

2.1 Download

Download latest version from Golang.org . Currect version is go1.9.4.darwin-amd64.pkg

2.2 Install

I choose install for all users, and Go will be installed under /usr/local/go

➜  ~ ll -l /usr/local/go
total 264
-rw-r--r--    1 root  wheel    40K Feb  8 01:09 AUTHORS
-rw-r--r--    1 root  wheel   1.5K Feb  8 01:09 CONTRIBUTING.md
-rw-r--r--    1 root  wheel    54K Feb  8 01:09 CONTRIBUTORS
-rw-r--r--    1 root  wheel   1.4K Feb  8 01:09 LICENSE
-rw-r--r--    1 root  wheel   1.3K Feb  8 01:09 PATENTS
-rw-r--r--    1 root  wheel   1.6K Feb  8 01:09 README.md
-rw-r--r--    1 root  wheel     7B Feb  8 01:46 VERSION
drwxr-xr-x   15 root  wheel   480B Feb  8 01:53 api
drwxr-xr-x    5 root  wheel   160B Feb  8 01:53 bin
drwxr-xr-x    4 root  wheel   128B Feb  8 01:53 blog
drwxr-xr-x   46 root  wheel   1.4K Feb  8 01:53 doc
-rw-r--r--    1 root  wheel   5.6K Feb  8 01:09 favicon.ico
drwxr-xr-x    3 root  wheel    96B Feb  8 01:53 lib
drwxr-xr-x   16 root  wheel   512B Feb  8 01:53 misc
drwxr-xr-x    6 root  wheel   192B Feb  8 01:53 pkg
-rw-r--r--    1 root  wheel    26B Feb  8 01:09 robots.txt
drwxr-xr-x   68 root  wheel   2.1K Feb  8 01:53 src
drwxr-xr-x  286 root  wheel   8.9K Feb  8 01:53 test

2.3 Link to /usr/bin for convenient:

➜  ~ sudo ln -s /usr/local/go/bin/go /usr/bin/go
➜  ~ sudo ln -s /usr/local/go/bin/godoc /usr/bin/godoc
➜  ~ sudo ln -s /usr/local/go/bin/gofmt /usr/bin/gofmt

2.4 Verify

Check what Golang can do with :

➜  ~ go help

For example, print Go environment information:

➜  ~ go env
GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/williamwang/go"
GORACE=""
GOROOT="/usr/local/go"
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GCCGO="gccgo"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/bc/7jpj3vk11hn6kmh9spc_db3h0000gp/T/go-build870332584=/tmp/go-build -gno-record-gcc-switches -fno-common"
CXX="clang++"
CGO_ENABLED="1"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"

3. Eclipse Configuration

As a Java developer, I’m used to Eclipse and I’m glad there is also a Golang plugin for Eclipse.

3.1 Install GoEclipse

Open Eclipse -> Help -> Eclipse MarketPlace -> Find 'GoEclipse' -> Install

3.2 Try Hello World

Now we can create GO PROJECT in Project Explorer

And next, let’s create a Go File like following content:

package main

import "fmt"

func main() {
   fmt.Println("Hello, World!")
}

When we RUN it, there probably a Error :

Error: GOROOT is not defined

This mean you need specify Go installation path.

Eclipse -> Preference -> Go -> Go installation Directory

Error: Resource doesn’t have a corresponding Go package

After configure Go installation directory, I encounter another Error : Resource doesn’t have a corresponding Go package

This error required you create a sub folder under {Golang Project}/src/ , and then put the test GO File into new sub folder.

Now, it’s able to pring “hello, world!” as expectec. Hooray !!

 
作者:Villim Wong
原文地址:Setup Golang Enviroment on Mac, 感谢原作者分享。

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