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f78a141dd5
When a file referenced by a task's inputs/outputs (e.g. `Compile / resources +=
file("nope.txt")`) does not exist, hashing the task's cache key threw a
NoSuchFileException deep inside sjsonnew serialization. It surfaced as an opaque
sjsonnew.SerializationException that dumped the entire input list, with the real
cause buried several `Caused by:` levels down, so users routinely mistook it for
a corrupt cache and reached for `clean`.
ActionCache.mkInput now catches the hashing failure, detects a NoSuchFileException
anywhere in the cause chain (ActionCache.findMissingFile), and throws a
MessageOnlyException naming the file:
[error] file referenced by the build does not exist: nope.txt
util-cache gains a dependency on util-control (a leaf module, no cycle) for
MessageOnlyException.
Fixes #9217.
Co-authored-by: Brian Hotopp <[email protected]>
Co-authored-by: Claude Opus 4.8 (1M context) <[email protected]>