Commit Graph
4 Commits
Author SHA1 Message Date
clawbot c737490a53 Compute the content hash only when head and tail match (closes #61)
check / check (push) Successful in 49s
A file of 10 MiB or more now gets only its 64 KiB head and tail in the
hash phase, so its content is read only when it can be a duplicate. A
new content phase after the update phase finds every group of records,
anywhere in the database, that share size, head and tail and include
one without a content hash. It checks every member with lstat and, when
at least two pass, reads those without a content hash through the
existing worker pool; a stale file does not count as a match. report
and trees leave out records without a content hash. The README, help
text and TODO entry describe the gate; the schema stays at version 1.

Lint suppressed: gosec on the file open in hashContentOnly, as in
hashSignature, and on one chmod in a test.

Model: opus-5-5
2026-09-23 16:06:09 +02:00
clawbot 29a65016d0 Add 64 KiB head/tail and content-hash duplicate ladder (closes #61) (#62)
check / check (push) Successful in 57s
2026-09-22 16:40:43 +02:00
sneak d8fbcb32c2 Implement persistent SQLite scan database
check / check (push) Successful in 3s
scan now synchronizes a database that survives between runs
(SFDUPES_DATABASE, default /var/lib/sfdupes/db.sqlite) instead of
emitting a stream: operands are resolved to absolute paths, unchanged
files (same size, mtime not newer than recorded) are never re-read, new
and changed files are hashed, and records under the scanned operands
that were not verified this run are deleted; records outside the
operands are untouched. All changes commit in a single transaction, and
WAL journaling with a busy timeout keeps a report run during a cron
scan safe.

report and trees read the database (no positional arguments); the
NUL-terminated stream format, its parser, and the malformed-record
handling are gone. The driver is modernc.org/sqlite (pure Go), so
builds keep cgo disabled.
2026-07-24 03:08:49 +07:00
sneak 7a6adae0d2 Add test suite covering parsing, grouping, digests, and scan passes
Covers splitNUL framing, parseScanStream (malformed records, tabs and
newlines in paths, unterminated trailing record), duplicate grouping
with ordering/tie-break/determinism, humanBytes units, Merkle digest
equality and name/content sensitivity, maximal-tree suppression
(including sibling and differing-parent cases), hashHeadTail edge
sizes and error paths, walkPass .zfs/symlink skipping, statPass
vanished files, and an end-to-end walk/stat/hash pipeline test of the
README smoke-test scenario. 64% statement coverage.
2026-07-23 05:42:38 +07:00