Walk an operand nested on another filesystem with -x (closes #106)

With -x, an operand under another operand is kept when it is on a different filesystem than the deepest kept operand above it, because that operand's walk does not enter it; it is then walked on its own. Below such an operand, the rule that keeps the records under a directory -x did not enter applies only to directories its own walk did not enter, so the records of files gone from it are deleted. The new test stubs each operand's device and shares its scan steps with the test for #99, whose comment no longer claims it runs every phase. The startWalk comment is rewrapped. Model: opus-5-5
2026-10-14 18:37:06 +00:00
parent 80bd7c0999
commit e248313ed1
4 changed files with 212 additions and 44 deletions
@@ -29,6 +29,11 @@

 # Completed Steps

+- with `-x`, an operand under another operand but on a different filesystem is
+  walked on its own instead of being dropped, and the records of files gone from
+  below it are deleted (2026-10-14,
+  https://git.eeqj.de/sneak/sfdupes/issues/106)
+
 - with `-x`, `scan` keeps the records below a directory on another filesystem
  under its operand, and counts their sizes in the size census, instead of
  deleting them (2026-10-14, https://git.eeqj.de/sneak/sfdupes/issues/99)