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Command to tell whether download/install is necessary #4000

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@smoelius

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@smoelius

I am looking for a command to tell me whether a toolchain would have to be downloaded/installed without actually downloading or installing anything.

Hypothetically:

$ rustup <args>
# exit code 0 => no installation necessary
# exit code 1 => installation necessary

Does such a command exist today?

Please note that I am aware of this issue and PR:

If I understand correctly, the latter suggests that such a command may be available soon.

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