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4c9d94f93c
This allows opt-in to cache key debug database on daemon startup. If enabled, all cache keys generated by builds are saved into this database together with the plaintexts of the original data so a reverse lookup can be performed later to compare two checksums and find out their original difference. If checksum contains other checksums internally then these are saved as well. For storage constraints, the plaintext of file content is not saved but the metadata portion can be still looked up. Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>