feat(sync/customrawdb): migrate customrawdb package from coreth #4387
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- Move `plugin/evm/customrawdb` in `coreth` to `vms/evm/sync` in `avalanchego` as part of state sync code migration effort. resolves #4386 Signed-off-by: Tsvetan Dimitrov (tsvetan.dimitrov23@gmail.com)
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joshua-kim
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Oct 8, 2025
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Why do we have this file? This contains dead code/a function that isn't actually a test.
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Yes, I agree with this. I will check why this was historically added in the first place, but we can definitely remove it from here.
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What does the _ext suffix on these files mean? Should we remove it?
… assertions - Add tests: - Time markers (offline_pruning, populate_missing_tries): missing marker and bad-encoding cases. - Pruning disabled flag: presence toggling. - Acceptor tip: invalid length error and write/read behavior (table-driven: none, single_write, overwrite). - State sync: sync root read/write, code-to-fetch iterate/delete, segments/storage tries iterate/unpack/clear, sync performed latest (empty/increasing/unsorted). - Snapshot: block hash read/write/delete and account iterator key-length filtering. - ParseStateSchemeExt: Firewood on empty DB, conflict on existing scheme, passthrough for "hash". - Refactor/behavioral tightening (internal-only): - Add unexported sentinels: errMarkerNotFound, errMarkerInvalid, errAcceptorTipInvalid. - Normalize time marker reads: use `Has()` for presence and return `errMarkerNotFound` when absent/empty. Wrap decode errors with `errMarkerInvalid`. - Wrap acceptor tip invalid-length with `errAcceptorTipInvalid`. - Tests assert with `require.ErrorIs` for known sentinels. - Schema organization: - Group all package-level globals in a single var block in schema_ext.go - Add clear section headers to improve readability
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@joshua-kim I added lots of new tests that enable having the following coverage for the package: I fixed most of the minor comments and will get back on the rest of your points once I have more historical context from the team. |
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Why this should be merged
Check #4386
How this works
plugin/evm/customrawdbincorethtovms/evm/syncinavalanchegoas part of state sync code migration effort.How this was tested
Existing UT that come with the migrated code.
Need to be documented in RELEASES.md?
no
resolves #4386
Signed-off-by: Tsvetan Dimitrov (tsvetan.dimitrov23@gmail.com)