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feat(xattr): rsync-interoperable --fake-super stat; fix --devices error parity

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TapTap
2026-09-22 22:03:41 +02:00
parent d780a4625e
commit 80e8d7f450
11 changed files with 315 additions and 149 deletions
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README.md
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@@ -187,7 +187,7 @@ This produces `./build/client` and `./build/server`. `compile_commands.json` is
| `--groupmap=MAP` | Map group names when applying ownership |
| `--numeric-ids` | Apply source numeric uid/gid directly instead of mapping by name |
| `--copy-as=USER[:GROUP]` | Force every written entry to USER[:GROUP] (requires a privileged receiver) |
| `--fake-super` | Record the resolved owner plus mode/time in a reserved `user.fastsync.stat` xattr and replay mode/time; never performs a real chown |
| `--fake-super` | Record the resolved owner plus full mode/rdev in rsync's reserved `user.rsync.%stat` xattr (rsync 3.4.1 grammar) and replay the permission bits; never performs a real chown |
| `--super` | Permit the receiver to attempt confined super-user activities (device nodes) |
| `-D` | Preserve device and special files (implies `--devices --specials`) |
| `--devices` | Recreate device nodes on the destination (privileged; skipped without `CAP_MKNOD`) |
@@ -643,7 +643,7 @@ remote SSH argv is already built injection-safe.
| `--groupmap=MAP` | Map group names when applying ownership (same syntax as `--usermap`). |
| `--numeric-ids` | Mapping modifier: apply the source numeric uid/gid directly instead of mapping by name (combine with `-o`/`-g`, `-a`, or a map). |
| `--copy-as=USER[:GROUP]` | Force every written entry to USER[:GROUP]; requires a privileged receiver. |
| `--fake-super` | Record the resolved owner plus mode/time in a reserved `user.fastsync.stat` xattr and replay mode/time; never performs a real chown. |
| `--fake-super` | Record the resolved owner plus full mode/rdev in rsync's reserved `user.rsync.%stat` xattr (rsync 3.4.1 grammar) and replay the permission bits; never performs a real chown. |
| `--super` | Permit the receiver to attempt confined super-user activities (device nodes). |
| `--no-super` | Forbid those super-user activities even when the receiver is root. |
| `-l`, `--links` | Copy symlinks as symlinks; the target is stored verbatim (absolute and `..`-bearing targets included), matching rsync. |