DO NOT REPLY [Bug 3978] New: readonly source -> incomplete transfers (permission problems)

[samba-bugs at samba.org]

https://bugzilla.samba.org/show_bug.cgi?id=3978

           Summary: readonly source -> incomplete transfers (permission
                    problems)
           Product: rsync
           Version: 2.6.4
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: core
        AssignedTo: wayned at samba.org
        ReportedBy: r.e.wolff at bitwizard.nl
         QAContact: rsync-qa at samba.org


When transferring large datasets where the destination is not consistent anyway
until the transfer is complete I use --inplace.

Part of using rsync is that I can interrupt the transfer and restart it without
wasting bandwidth. 

interrupting rsync causes the file to be left in "mode 0" state. (indicates
it's not complete, I can understand this.)

restarting rsync causes rsync to fail opening the file, then it seems to ignore
the returned error code, next it transfers the whole file, and looses the
result.


Suggestion: As the file is mode 0 during the original transfer anyway, the mode
of the destination file should not be considered "holy". If the open fails,
attempt to chmod the file to mode 600 and retry. 

This is "wrong" if the destination user explicitly chmods the destination to
owner-read-only to prevent rsync from messing with them. 

How about leaving the incomplete file mode "200" instead of "000"?

Or drop the "--inplace" for this file (which would have made it a full no-op in
my case).

I apologise for reporting this on such an old version, but I'm not set up to
compile rsync on a whim.


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