DO NOT REPLY [Bug 5645] New: Optimization-only basis dirs that don't affect itemization

[samba-bugs at samba.org]

https://bugzilla.samba.org/show_bug.cgi?id=5645

           Summary: Optimization-only basis dirs that don't affect
                    itemization
           Product: rsync
           Version: 3.1.0
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P3
         Component: core
        AssignedTo: wayned at samba.org
        ReportedBy: matt at mattmccutchen.net
         QAContact: rsync-qa at samba.org


Currently, when rsync uses a basis file from a --*-dest basis dir, rsync
itemizes as if the basis file were actually present in the destination. 
However, a --copy-dest or --link-dest dir (but not a --compare-dest dir) may be
intended purely as an optimization that does not affect the resulting contents
of the destination (ignoring hard links).  I would like a means to specify such
a basis dir without affecting itemization except to change some "<" or ">" in
the first column to "c" or "h".

This means could take the form of a separate flag --no-itemize-alt-basis or,
for more flexibility, non-itemizing variants of --copy-dest and --link-dest. 
These variants could be named --basis-dir and --link-basis-dir to suggest that
they lack the semantic association with the destination that the --*-dest
options have.


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