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Re: [Help-tar] --deterministic option?

From: Paul Eggert
Subject: Re: [Help-tar] --deterministic option?
Date: Wed, 27 May 2015 09:53:08 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0

Jakob Bohm wrote:
I would suggest (as a future feature) three
new determinism options:

These all sound like nice suggestions. Getting back to the original request, the biggest problem I see with it is the issue of file timestamps. Unfortunately, --mtime=debian/changelog loses useful information in the distribution. Instead, I arrange for each repository-controlled file to have its repository-controlled timestamp. And I arrange to have each generated file's timestamp to equal that of its newest dependency. You can this sort of thing in the set-timestamps.out rule of <>.

I don't think this can be easily folded into 'tar', but at least 'tar' should be able to do everything else you mention without munging timestamps.

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