On Mon, Oct 27, 2014 at 5:12 PM, Simon Slavin <slav...@bigfraud.org> wrote:
> On 27 Oct 2014, at 9:49pm, Nico Williams <n...@cryptonector.com> wrote:
>> If it's not too much to ask for then SQLite3 ought to: a) check for
>> duplicates by canonicalized path (but keep in mind that this can be
>> difficult to do portably, or without obnoxious length limitations on
>> Windows), then b) check for duplicates by st_dev/st_ino where
>> available.
> Checking for cannonical path would seem to be important to improving this 
> functionality.  There's a function to do this under OS X (resolve links, then 
> do "stringByStandardizingPath") and Windows ("PathCchCanonicalize").  BSD has 
> "realpath(3)".  It should be possible for most VFSes.

Yes, but there's portability concerns.  For example,
PathCchCanonicalize() is not available before Windows 8 / Windows
Server 2012.  (Also, use PathCchCanonicalizeEx() instead...)

(Windows also has an inode number on NTFS, as well as hardlinks, which is nice.)

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