Differences between revisions 2 and 3
Revision 2 as of 2015-01-10 13:53:04
Size: 900
Editor: Lunar
Revision 3 as of 2015-01-10 18:21:25
Size: 891
Editor: GuillemJover
Comment: Use dpkg-parsechangelog option instead of sed/grep+cut
Deletions are marked like this. Additions are marked like this.
Line 29: Line 29:
BUILD_DATE := $(shell dpkg-parsechangelog | sed -n -e 's/^Date: //p') BUILD_DATE := $(shell dpkg-parsechangelog --show-field=Date)

Tarballs contain mtimes. They will not be reproducible if files have been generated during build time.

Known affected packages


Example debbindiff output


Known yet.



If indivdiual mtimes don't matter, then use the --mtime option:

           set mtime for added files from DATE-OR-FILE

Adjusting mtimes

Use find, xargs, and touch to adjust file mtimes before tar is run. Example:

BUILD_DATE := $(shell dpkg-parsechangelog --show-field=Date)
       find '$(DIR)' -depth -newermt '$(BUILD_DATE)' -print0 | \
               xargs -0r touch --no-dereference --date='$(BUILD_DATE)'
       […] tar […]