Samuel Attard 983ebdd6de ci: make src-cache upload atomic (#50743) ...

ci: make src-cache upload atomic and sweep orphaned temp files

The checkout action's cp of the ~6GB zstd archive directly to the final
path on the cache share is non-atomic; an interrupted copy or a
concurrent reader produces zstd "Read error (39): premature end" on
restore, and the truncated file then satisfies the existence check so
no later run repairs it.

Upload to a run-unique *.tar.upload-<run_id>-<attempt> temp name on the
share and mv to the final path, discarding our temp if a concurrent run
got there first. A new clean-orphaned-cache-uploads workflow removes
temp files older than 4h every 4 hours.

2026-04-06 16:04:49 -04:00

..

action.yml

ci: make src-cache upload atomic (#50743)

2026-04-06 16:04:49 -04:00