golang environment build git

Golang is an open source programming language that is widely used in web applications and network services. As an efficient and fast language, it has received increasing attention and support in recent years. This article will introduce how to set up a Golang environment on your computer and use git for version control.

Step One: Install Golang

Before you start, you need to download and install Golang. You can download the installation package corresponding to the operating system from the official website (https://golang.org/dl/) and install it according to the prompts. After the installation is complete, you can run the following command in the terminal to check whether the installation is successful:

go version

If the installation is successful, the terminal will output the version number of the Go language.

Step 2: Set up the workspace

Before you start writing Golang programs, you need to create a workspace first. A workspace is a directory containing three subdirectories: src, pkg, and bin.

• The src directory contains the Golang program source code.
• The pkg directory contains the compiled package.
• The bin directory contains the executable file of the Golang program.

Create a folder named GoWorkspace to store the workspace. Run the following command in the terminal:

$ mkdir ~/GoWorkspace
$ cd ~/GoWorkspace
$ mkdir src pkg bin

Then, set the GOPATH environment variable in the terminal and add the workspace path to the variable:

$ export GOPATH=$HOME/GoWorkspace
$ export PATH=$PATH:$GOPATH/bin

Here, we add the GoWorkspace directory path to the GOPATH variable so that our terminal can find the path where the program is stored. Finally, add the GOPATH/bin directory to the PATH environment variable so that it can be run directly in the terminal as the program file name.

If you want to automatically load environment variables every time you log in to the computer, you can add these commands to your own shell configuration file, as shown below:

$ echo 'export GOPATH=$HOME/GoWorkspace' >> ~/.bash_profile
$ echo 'export PATH=$PATH:$GOPATH/bin' >> ~/.bash_profile
$ source ~/.bash_profile

Step 3: Use git Managing Golang programs

Before explaining how to use git to manage Golang programs, we need to install git first. Enter the following command in the terminal to install:

$ sudo apt-get update
$ sudo apt-get install git

After the installation is complete, you can use the following command to get the git version number:

$ git version

Next, you can use the git command to create a new Golang project. Create a new directory under the GoWorkspace/src directory and initialize it as a git repository:

$ cd ~/GoWorkspace/src
$ mkdir hello
$ cd hello
$ git init

Then, you can create the Golang source code file hello.go in the hello directory and write a program in it:

package main

import "fmt"

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

After saving the file, you can use the following command to add it to the staging area of ​​the git warehouse:

$ git add hello.go

Next, you can use the following command to commit the changes and write the commit information:

$ git commit -m "Add hello.go"

Now, the program files have been added to the local warehouse. If necessary, you can use the following command to push to the remote warehouse:

$ git remote add origin <remote repository URL>
$ git push -u origin master

Using git to manage Golang programs can very well help us in collaborative development and version control. We can create and develop multiple branches in parallel and merge them into the master branch. In addition, using git can also help us quickly detect errors and fix them when code changes.

Conclusion

This article introduces how to set up a Golang environment on a computer and use git for version control. With these steps, we can easily program in Golang and manage program code using git. Of course, this is just an entry-level introduction, and there are many other things to learn and master. Hope this article can be helpful to you.

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