Introduction

When I tried to create a ruby environment for the first time in over a year, it didn't go well and I finally created an environment, so I'll leave a note. Now you can execute steps and check variables with ruby.

Install Visual Studio Code

-Download and install from the Microsoft page.

Ruby installation

-Install using the installer with devkit on the Ruby Installer site. This time I used [rubyinstaller-devkit-2.6.6-1-x64.exe](https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-2.6.6-1/rubyinstaller-devkit-2.6 .6-1-x64.exe).

Install VS Code extension

--Start VSCode, search for the extension "ruby" and install it. (The figure below is the screen after installation)

Install Gem with bundle

--Open VS Code terminal and bundle init.

Windows PowerShell
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PS C:\Users\momoandbanana\Documents\my_ruby_programs\debugenv> bundle init
Writing new Gemfile to C:/Users/momoandbanana/Documents/my_ruby_programs/debugenv/Gemfile
PS C:\Users\momoandbanana\Documents\my_ruby_programs\debugenv>

--Then a Gemfile will be created, so add the debase and ruby-debug-ide Gem.

`Gemfile`


# frozen_string_literal: true

source "https://rubygems.org"

git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }

# gem "rails"
gem "debase" #Added
gem "ruby-debug-ide" #Added

--Install Gem with bundle install in VS Code terminal.

PS C:\Users\momoandbanana\Documents\my_ruby_programs\debugenv> bundle init
Writing new Gemfile to C:/Users/momoandbanana/Documents/my_ruby_programs/debugenv/Gemfile
PS C:\Users\momoandbanana\Documents\my_ruby_programs\debugenv> bundle install
Fetching gem metadata from https://rubygems.org/.....
Resolving dependencies...
Using rake 13.0.1
Using bundler 2.1.4
Using debase-ruby_core_source 0.10.9
Using debase 0.2.4.1
Using ruby-debug-ide 0.7.2
Bundle complete! 2 Gemfile dependencies, 5 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.
PS C:\Users\momoandbanana\Documents\my_ruby_programs\debugenv>

Describe the setting in `lunch.json`.

--Prepare a ruby program.

`main.rb`


puts("hello ruby-debugger !")

--Select Run`` Open Configuration from the VS Code menu for __ to have lunch.json created __automatically.

--Then, you will be asked what kind of configuration you want to configure, so select ruby.

--Furthermore, select debug local file.

--Then, the launch.json file will be created. Modify the program line as follows.

`launch.json`


{
    //You can use IntelliSense to learn the available attributes.
    //Hover and display the description of existing attributes.
    //Check the following for more information: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Debug Local File",
            "type": "Ruby",
            "request": "launch",
            // "program": "${workspaceRoot}/main.rb",I made a comment.
            "program": "${file}", //It has changed.
        }
    ]
}

Start debugging

--_ Open the source file, and from __, debug with the VS Code Run`` Start Debugging. The figure below shows a break by setting a breakpoint on the first line of main.rb.