On Thu, Nov 10, 2005 at 10:32:50AM -0500, Chris Shoemaker wrote: > If the original file changes, then so will the hard link.
No -- an rsync update creates a temporary file, and that file gets renamed into place, breaking any hard-link that this new code creates. (The only exception to this update method is when --inplace is enabled, and I made this conflict with the new --detect-rename option.) > I think the don't-really-delete mode for delete-during is sufficient. Sure, if we forced --delete-before to be --delete-during, that would be sufficient for making this work. However, having the scan take place during the --delete-before handling doesn't add complexity to the code (the extra complexity is needed for allowing the scan-as-we-update handling with its potential to delay some missing-file updates). So, if the user wants a --delete-before scan, I figure we might as well allow it and use its disk I/O for our benefit, and it does ensure that the entire destination area is scanned before we start the updating, removing the need to delay any updates. > If --detect-renames hardlinks the deleted files it doesn't matter that > the orginals are deleted before transfer; hard drive space is not > reduced. True, but only for correlated files. Any extraneous files will still be deleted before the transfer. This shouldn't be any worse in disk-space use than the alternative of not allowing a delete-before pass. > Oh, because the match-search for non-missing files is not delayed in > the --delete-during scan, right? Exactly. My text might not have made it clear that this non-missing handling will always work for files in a single directory (such as log-dir rotations) as well as files found in the already-scanned dirs prior to getting to the current directory. > So, will this be in 2.6.7? It has a good chance of making it. It still needs some cleanup and testing, some of which I've just done: e.g. I've added support for checksum matching (instead of mod-time matching) when --checksum is enabled. The aforementioned patch has been updated with the latest changes. ..wayne.. -- To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
