local_repository() pointing into workspace is not invalidated when external repo file checking is disabled. #27365
Description
Description of the bug:
Hi!
I noticed that our warm Bazel implementation started complaining about inconsistent file sizes in @@+local_repository+blah//, when someone edited //third_party/blah/BUILD. It turns out that this repo was configured as
local_repository(
name = "blah",
path = "third_party/blah",
)
We are running with --watchfs --experimental_check_external_repository_files=false.
I am 99% sure that this problem is caused by --noexperimental_check_output_files not specially treating external repositories that point back into the source tree.
My gut feeling is that making this work will be hard, and I wonder if we could instead forbid this?
Which category does this issue belong to?
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What's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.
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Which operating system are you running Bazel on?
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What is the output of bazel info release?
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If bazel info release returns development version or (@non-git), tell us how you built Bazel.
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What's the output of git remote get-url origin; git rev-parse HEAD ?
If this is a regression, please try to identify the Bazel commit where the bug was introduced with bazelisk --bisect.
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Have you found anything relevant by searching the web?
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Any other information, logs, or outputs that you want to share?
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