opentofu/cmd
Martin Atkins f21bd00a1b
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main: Log about reliance on GODEBUG settings
The Go runtime provides a number of configuration knobs that subtly change
its behavior, and we cannot control which of these is available over time
as we change which version of Go we're building with.

It's therefore possible that an OpenTofu user might be intentionally or
unintentionally relying on one of these settings for OpenTofu to work on
their system, in which case they would be broken if they upgraded to a
newer version of OpenTofu which uses a different Go version that no longer
supports that setting.

These log lines are intended to help us more quickly notice that
possibility if someone opens a bug report describing an unexpected behavior
change after upgrading to a new OpenTofu minor release series. We can ask
the reporter to share "TF_LOG=debug" output from both the previous and new
releases to compare, and then these log lines should appear in the older
version's output so we can search the Go codebase and issue tracker for
each of the mentioned names to learn if the handling of that setting has
changed between Go versions.

Signed-off-by: Martin Atkins <mart@degeneration.co.uk>
2025-12-18 12:33:55 -08:00
..
tofu main: Log about reliance on GODEBUG settings 2025-12-18 12:33:55 -08:00