caching generated sources - #20230
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Changelog: Feature: New functionality to leverage the backup-sources mechanisms for caching intermediate artifacts, like heavy generated sources.
Docs: https://github.com/conan-io/docs/pull/XXXX
Private or "conan" metadata files in #20114 will not work for this use case, because they are always retrieved.
For same reason #20131 won't work
This could be a proposal for #20118:
identifiertodownload()method, so it can be used instead of the sha256 (necessary to be able to predict a file of cached generated files)save_backup_source()tool that allows recipes to put things in the download cache while generating them, making them ready for upload and reuse from there.