Repository navigation
Command to tell whether download/install is necessary #4000
Description
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 necessaryDoes such a command exist today?
Please note that I am aware of this issue and PR:
- Tracking: Rustup should not perform implicit installations #3635
- feat(cli)!: remove implicit toolchain installation #3985
If I understand correctly, the latter suggests that such a command may be available soon.
Activity
rami3l commentedon Aug 20, 2024
@smoelius Thanks for filing this issue! I think you're getting it right.
We don't have a specific command for this test, but starting from #3985, if the active toolchain is not installed, using it via any command will result in an error and a suggestion of actually installing it.
You may use
rustc --versionfor this purpose, for example, as demonstrated in the PR's description.Do you happen to have other concerns in this regard?
smoelius commentedon Aug 20, 2024
@rami3l Thank you for your response.
Just to be sure I understand, this functionality is not yet released, correct?
rami3l commentedon Aug 20, 2024
@smoelius Not at the moment, but we do have plans to ship it soon. See #3998.
smoelius commentedon Aug 20, 2024
Thanks very much for your help, @rami3l.