debug files are not deterministic
After fixing legacy/trac#24999 (moved), 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.