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I am looking for a "" tool (you'll understand the quotes shortly) with the following properties:

  • cross-platform (Linux and Windows at a minimum)
    • this implies that it should be agnostic to / vs. \ issues ...
  • single-master ... i.e. there is one authoritative copy
  • stores cryptographic hash of the files under its control along with other metadata in some database
    • file name
    • file path
    • timestamps
  • it should be able to detect files whose location (or name) underneath the base folder changed (but whose file size and hash will obviously be the same)
    • can use the file size as well as head and tail of multi-GiB files to make a quick call on whether it should even bother to compare the full cryptographic hash
  • doesn't have to do the actual synchronization (copying files around, verifying them afterward), instead it's sufficient to give a report in a form that I can post-process with a script, for example (i.e. structured output in whatever commonly used format such as YAML, JSON, XML or even CSV ...)

I'd prefer FLOSS and gratis, but if the solution is comprehensive, I will definitely shell out up to, say, 50 bucks (USD).

  • Why not consider just using a version control tool such as git or mercurial. They do almost exactly what you are describing plus letting you track what has changed and being able to revert it? – Steve Barnes May 16 at 5:01
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    @SteveBarnes simple, because the files are huge and binary. git-annex would generally be an option, but that would require using Git. And Git hates me and I it, so I won't use it voluntarily without being paid to do so. I was actually wondering when I wrote my question if I should mention having pondered these options. – 0xC0000022L May 16 at 9:53

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