#25327: debug files are not deterministic
-------------------------------------+-------------------------------------
Reporter: boklm | Owner: tbb-team
Type: defect | Status: new
Priority: Medium | Milestone:
Component: Applications/Tor | Version:
Browser | Keywords: TorBrowserTeam201802,
Severity: Normal | tbb-rbm
Actual Points: | Parent ID:
Points: | Reviewer:
Sponsor: |
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After fixing #24999, when building the 8.0a2 release we noticed that the
*-debug.tar.gz files are not deterministic.
It seems that the only difference is in the gzip timestamp, according to
the diffoscope output:
{{{
--- tor-linux32-debug.tar.gz
+++ ../alpha/unsigned/8.0a2-build2/tor-linux32-debug.tar.gz
├── metadata
│ @@ -1 +1 @@
│ -gzip compressed data, last modified: Wed Feb 21 12:09:06 2018, from
Unix
│ +gzip compressed data, last modified: Wed Feb 21 11:41:29 2018, from
Unix
}}}
We can fix that by using the `-n` gzip flag:
{{{
-n --no-name
When compressing, do not save the original file name and
time stamp
by default. (The original name is always saved if the name
had to
be truncated.) When decompressing, do not restore the
original file
name if present (remove only the gzip suffix from the
compressed
file name) and do not restore the original time stamp if
present
(copy it from the compressed file). This option is the
default when
decompressing.
}}}
An other solution is to create `tar.xz` files instead of `tar.gz`. This
would also create smaller files.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25327>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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