Reference an environment variable inside the settings.json

问题

Following this question, I want to use the environment variables to establish a cross-platform settings.json finding the right executables symlinks in the local .venv Python virtual environment.

I presume I can define environment variables on different shells by:

• *nix
  • bash/ksh: export <varName>=<varValue> (e.g., macOS bash)
  • csh/tcsh: setenv variable value (refrence)
• Windows:
  • cmd: set <varName>=<varValue>
  • PowerShell: $env:<varName>=<varValue>

Now according to this documentation, one should be able to use the ${env:<varName>} to reference an environment variable.

On macOS, I defined

export BIN=bin

and in the .vscode/settings.json I added:

{
    // ...
    "python.pythonPath": ".venv\\${env:BIN}\\python",
    // ...
}

but it doesn't work!

I would appreciate it if you could help me know how I can define environment variables on different platforms and reference them in the project-specific local settings.json?

来源：https://stackoverflow.com/questions/61977416/reference-an-environment-variable-inside-the-settings-json