#31264: tar.gz output files contain nonreproducible timestamps
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Reporter: JeremyRand | Owner: boklm
Type: defect | Status: new
Priority: Medium | Milestone:
Component: Applications/rbm | Version:
Severity: Normal | Resolution:
Keywords: | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
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Comment (by boklm):
> Given that .xz has much better compression than .gz and (AFAIK) is
usually readily available on GNU/Linux and macOS systems just like .gz
The reason to use gzip to compress source tarballs is that xz is a lot
slower than gzip. So switching to xz would save some space on disk, but
would probably slow down the build. Especially for components like firefox
where we might spend several minutes just to compress it with xz.
However it looks like we could easily fix the gzip reproducibility issue
by using the `-n` or `--no-name` option:
https://wiki.debian.org/ReproducibleBuilds/TimestampsInGzipHeaders
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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31264#comment:2>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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