fix(fs): recreate empty dirs, replace blocking file; -R --no-implied-dirs implied parents

- Recursive scans emit a directory entry for every traversed directory that produced no transferred child, so empty source dirs (and dirs emptied by filtering) are recreated like rsync; -m prunes them, --files-from/--list-only never emit implicit dirs. - A directory entry now replaces a destination regular file (rsync removes the non-directory) instead of aborting; confined to the secure parent fd. - -R --no-implied-dirs --files-from: stop refusing a listed file whose parent is not listed; create the implied parent with default attributes (no source metadata is captured for it), matching rsync 3.4.1. - Differential gate: drop min_size/empty_dirs_recursive/dirs_plain allowlist entries (dirs_plain now hands FastSync the same trailing-slash source as rsync); add differential test for the files-from implied parent. - Docs: -d row -> Parity, tally 108/24/24. No wire change (PROTOCOL_VERSION stays 2.26.0).
2026-09-18 20:25:42 +02:00
parent d162d93570
commit 13708352ec
12 changed files with 191 additions and 146 deletions
@@ -218,7 +218,8 @@ _CASES = [
    H.Case("files_from", "relative", ["--dirs", "-R"],
           files_from=("dir1", "sub/x.txt"), layout=H.RELATIVE, ci=True,
           ref="-d/--dirs + --files-from"),
-    H.Case("dirs_plain", "basic", ["-d"], ref="-d/--dirs (plain)"),
+    H.Case("dirs_plain", "basic", ["-d"], fs_src_suffix="/",
+           ref="-d/--dirs (plain)"),
    H.Case("empty_dirs_recursive", "empty_dir", ["-a"],
           ref="recursive empty-directory residual"),
    H.Case("empty_dirs_files_from", "empty_dir", ["--dirs", "-R"],