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Zack
e70306be37
makes the strategy-2 stable-ID work observable end-to-end: - pass --prev-output $WORKDIR/old-output when previous build present. IdAllocator reads it; first-build / missing-prev-dir is a clean no-op (allocator falls through to fresh sequential idx, output identical to today). - rename sidecars from *.osm_ids.bin to *.osm_ids so they don't match the workflow's existing "*.bin" exclude/find patterns. cleaner than threading an exception through every glob. - exclude *.osm_ids from the user-facing Tigris upload (--exclude passed to s5cmd cp). they remain in the build cache so the next build can read them, but clients never download them. - skip *.osm_ids in the patch verify loop (sidecars aren't in the patch and the patcher doesn't write them; a fresh build always emits the current state). - compress step also excludes *.osm_ids — they stay raw alongside the uncompressed working data, since they're cache-internal and the next build mmap-reads them directly. no build_version bump: the user-facing record files (street_ways.bin, admin_polygons.bin, etc.) keep the same byte layout. sidecars are strictly additional files in the build cache. on the first build after this lands, no sidecars exist in cache → allocator falls through → output bytes identical to today. subsequent builds read the sidecars and stabilize IDs.