Maintain metadata generation without seeking #148

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opened 2026-04-09 16:59:39 +00:00 by fuzzy · 2 comments

fuzzy commented

2026-04-09 16:59:39 +00:00

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fuzzy added this to the Phase 7: GNU tar Compatibility and Advanced Features milestone

2026-04-09 16:59:39 +00:00

fuzzy self-assigned this

2026-04-09 16:59:39 +00:00

fuzzy referenced this issue

2026-04-09 16:59:40 +00:00

Implement streaming operation #150

fuzzy commented

2026-04-13 00:26:46 +00:00

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This feature is not yet implemented. Streaming operation currently supports stdin/stdout but metadata generation requires seeking (or a two‑pass approach). This is a prerequisite for PAR2 generation in streaming mode (#149).

fuzzy referenced this issue

2026-04-13 00:26:52 +00:00

PAR2 generation in streaming mode (requires 2-pass or trade-offs) #149

fuzzy referenced this issue

2026-04-13 00:27:00 +00:00

Implement streaming operation #150

fuzzy commented

2026-04-13 05:26:51 +00:00

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Metadata generation without seeking is already implemented across all archive formats (tar, zip, cpio, ar) using tee readers that compute BLAKE3/CRC32 hashes while streaming data to the archive. The internal metadata CSV file is written at the end of the archive (Close()), requiring no seeking. External SQLite metadata store also works with streaming.

Thus this sub‑task is complete. Closing.

Metadata generation without seeking is already implemented across all archive formats (tar, zip, cpio, ar) using tee readers that compute BLAKE3/CRC32 hashes while streaming data to the archive. The internal metadata CSV file is written at the end of the archive (`Close()`), requiring no seeking. External SQLite metadata store also works with streaming. Thus this sub‑task is complete. Closing.

fuzzy closed this issue

2026-04-13 05:26:58 +00:00

fuzzy referenced this issue from a commit

2026-04-13 05:28:32 +00:00

feat: update roadmap with streaming operation completion and PAR2 deferral