How to define a global variable in launch.json in VSCode? - visual-studio-code

Question

In the VSCode's lauch.json file, I use multiple configurations for debugging different files. And some of these variables are common between configurations.
I wonder if this could be possible to define a global variable in the launch.json and use it in different locations of the file?
For example, I'm looking for a way to define variable_common once and use it in config 1 and config 2:
"configurations": [
{
"name": "Python: config 1",
"type": "python",
"request": "launch",
"program": "${file}",
"console": "integratedTerminal",
"justMyCode": true,
"args": ["variable_1", "variable_2", "variable_common"]
},
{
"name": "Python: config 2",
"type": "python",
"request": "launch",
"program": "${file}",
"console": "integratedTerminal",
"justMyCode": true,
"args": ["variable_3", "variable_4", "variable_common"]
}
]

Answer 1

With the extension Command Variable you can create custom variables
{
"version": "0.2.0",
"configurations": [
{
"name": "Python: config 1",
"type": "python",
"request": "launch",
"program": "${file}",
"console": "integratedTerminal",
"justMyCode": true,
"args": ["variable_1", "variable_2", "${input:VAR_COMMON}"]
},
{
"name": "Python: config 2",
"type": "python",
"request": "launch",
"program": "${file}",
"console": "integratedTerminal",
"justMyCode": true,
"args": ["variable_3", "variable_4", "${input:VAR_COMMON}"]
}
],
"inputs": [
{
"id": "VAR_COMMON",
"type": "command",
"command": "extension.commandvariable.transform",
"args": { "text": "common_arg" }
}
]
}