TapTap/FastSync
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8 Commits
Author SHA1 Message Date
TapTap 5fed0888aa perf: #259 delta_compute hash index over signature blocks 2026-09-05 12:21:26 +02:00
TapTap cc143316b2 Merge latest dev into triage remediation
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2026-08-09 11:30:08 +02:00
TapTap 2450b90dd0 feat: add checksum-aware incremental sync 2026-08-08 20:27:26 +02:00
TapTap 4feb75957a fix: validate delta output and integration test skips
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2026-08-08 20:09:06 +02:00
TapTap 413f69de90 fix: const-correct delta.c and use unread variable in test for cppcheck
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2026-07-19 17:07:14 +02:00
TapTap d7b9d4dbbc fix: apply clang-format to merged code from main
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2026-07-19 17:04:05 +02:00
TapTap 598e4e7514 fix: address PR review - rolling adler32, extract helpers, configurable max file size
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- Fix rolling adler32: add missing -1 in s2 update formula (was producing
  wrong checksums, causing zero block matches)
- Fix file_send_sendfile signature to match typedef (add unused
  compression_level param)
- Extract receive_delta_file() from receive_incremental_check() to reduce
  nesting depth
- Extract send_file_incremental() helper in client_send.c
- Add delta_max_file_size to Config, serialized over wire
- Add --delta-max CLI flag
- Add test_large_file_delta (200KB) and extra delta_should_attempt cases
- Remove unused pos_in_block variable from delta_compute
 2026-07-19 02:02:28 +02:00
TapTap e16db56580 feat: add delta transfer for incremental sync
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Implement rsync-style delta transfer using rolling checksums (Adler-32 +
xxHash32). When a file exists on both sides but has changed, only the
changed blocks are transmitted instead of the entire file.

- New status codes: STATUS_DELTA_SIGNATURE, STATUS_DELTA_DATA
- Protocol version bumped to 1.2.0
- Server generates block signature, client computes delta
- Auto-fallback to whole-file when delta >= 70% of file size
- Works with zstd compression on delta stream
- Configurable block size (default 8KB, --delta-block flag)
- 13 unit tests covering hashing, signature roundtrip, delta compute/apply,
  file growth/shrink, and decision logic
 2026-07-18 20:00:15 +02:00