Allow us to extend launch configurations

[pushkin-]

I have a launch.json with two configurations that are basically exactly the same except for the args that I set.

I would like to be able to extend an existing launch configuration and add on just my changes rather than rewriting the entire configuration. E.g.:

{
    "type": "node",
    "request": "launch",
    "name": "A",
    "program": "...",
    "runtimeExecutable": "...",
    ...
},
{
    "name": "B",
    "extends": "A",
    "args": ["arg1", "arg2"]
}
    

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[pknowles]

Can we revisit this? I have giant launch configs. My current workaround is to comment out the arguments to test with but it's a pain to switch between when it could be in a nice dropdown menu.

I really like pushkin-'s idea. It's simple and exactly what I need. It could be implemented at a more generic level, where we could "include" a json block anywhere (although more invasive). This would be really useful for c_cpp_properties.json too, where I am copy/pasting giant blocks of include and search paths.

"environment": [ <project-wide-env-vars> ],
"setupCommands": [ <project-wide-gdb-setup-comands> ],

[mariadb-AlexeyVorovich]

would be great to have

[TomasHubelbauer]

This would allow different folks on the team to change launch configurations to use either Chrome or Edge based on their preference without generating a Git change.

Current state:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Debug config",
            "type": "msedge",
            ...
        },

Ideal state:

{
    "extends": "launch.local.json",
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Debug config",
            ...
        },

launch.local.json:

{
    "configurations": [
        {
            "type": "msedge",
        },

Of course, how to merge the configs would be a discussion to have for sure so both augmenting and completely replacing configuration nodes would be possible.