feat: add --resume for incremental snapshot exports - #11

Merged

gacevicljubisa merged 38 commits into

mainfrom

feat/resume-flag

Aug 31, 2026

Commits on Aug 26, 2026

docs: add implementation plan for the --resume flag

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dbb0b96
feat(resume): read the last saved log from a previous export
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test(resume): cover a valid line straddling a window boundary
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feat(gzipstore): add AppendWriter for appending a gzip member
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feat(filestore): add AppendLogsAsync with a skip filter
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test(resume): add append-resume round trip covering filestore and gzipstore
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feat(export): add --resume to continue a previous export
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docs: document the --resume flag
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fix(resume): never report a partially written export as a clean end

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fix(filestore): report the error from closing the log destination

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fix(export): recover a partial write and open the destination up front

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docs: describe what resuming does with a partial write

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docs: scope what resuming discards and re-fetches

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docs: reflow the partial-write paragraphs to the file's wrap width

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docs: remove the implementation plan from the repo

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refactor: condense comments to the non-obvious rationale

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Commits on Aug 27, 2026

docs: spec for resume as incremental snapshots (input/output model)

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docs: implementation plan for resume as incremental snapshots

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feat(resume): validate strictly, refuse files this tool did not write
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feat(resume): add PrepareOutput for in-place and copy-mode continuation
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refactor(filestore): drop SaveLogsAsync, callers compose CreateWriter and AppendLogsAsync

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feat(export): compose --resume with --output for copy-mode continuation
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fix(export): surface save failures in the exit code and never skip the final flush
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fix(export): report a saver-caused stop as the save error, not a fetch error
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docs: reframe resume around incremental snapshots
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fix(resume): treat any spelling of the same file as in-place, not copy

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fix(resume): pinpoint gzip refusals and stop misclassifying decode errors

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fix(export): do not mask a real save error behind a joined cancellation

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docs(resume): fix stale wording in README, spec and a test comment

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docs: remove the implementation plan, keep the design spec

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docs(spec): record the fix-wave behaviors and the deferred revalidation non-goal

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docs: recommend the double extension for snapshots and fix flag help

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docs: remove the design spec from the repo

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Commits on Aug 28, 2026

Commits on Aug 31, 2026

Merge main (slim output) into feat/resume-flag

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