Support VS Code CLI as an alternative to ANSICON.

[seraku24]

Summary

VS Code directly supports ANSI control sequences. However, cucumber only looks for the presence of ANSICON, which means no color output for VS Code users.

Possible Solution

Within ansicolor.rb, simply add an additional check for the presence of VS Code:

unless ENV['ANSICON'] || ENV['VSCODE_PID']

I have tested the above change with my local copy of the gem, and I am able to see the correct color output from cucumber in the VS Code integrated terminal. I figured I would share this with the community, and let you folks consider whether it is worth including in the project.

Edit: I updated the environment variable above. The previous value of VSCODE_CLI comes from running the code.bat file to launch VS Code. If you launch VS Code from the start menu, then that variable is not defined. However, VSCODE_PID appears to be a reliable indicator that you are running in the integrated terminal.

[aslakhellesoy]

This issue was moved to cucumber/cucumber-ruby#1163

[lock]

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