On Sat, Oct 10, 2015 at 10:46:02AM +0000, Santiago Vila wrote: > I've created a new issue for this: > > -drwxr-xr-x root/root 0 2012-04-14 07:35:49 > ./usr/share/doc/llgal/examples/ > +drwxr-xr-x root/root 0 2011-08-02 10:42:19 > ./usr/share/doc/llgal/examples/
> This suggests that the problem is maybe related to one or more of the > dh_* tools and/or different filesystem ordering, as the source > packages themselves do not seem to be doing anything "strange". It's indeed an unfortunate interaction of dh_installdocs and disorderfs when installing directory hierarchies. dh_installdocs is doing cd 'doc/examples//..' && find 'examples' \( -type f -or -type l \) -and ! -empty -print0 | xargs -0 -I {} cp --reflink=auto --parents -dp {} /home/niko/tmp/mnt/debian/llgal/usr/share/doc/llgal but 'cp --parents -p' creates subdirectories with different timestamps depending on the order of its arguments. Consider: % ls -lR src src: total 4 drwxr-xr-x 3 niko niko 4096 Nov 9 2006 d1 src/d1: total 8 drwxr-xr-x 2 niko niko 4096 Oct 18 2006 d2 -rw-r--r-- 1 niko niko 547 Nov 9 2006 f1.txt src/d1/d2: total 4 -rw-r--r-- 1 niko niko 901 Oct 18 2006 f2 % cp --parents -p src/d1/f1.txt src/d1/d2/f2 dst1 && ls -ld dst1/src/d1 drwxr-xr-x 3 niko niko 4096 Nov 9 2006 dst1/src/d1 % cp --parents -p src/d1/d2/f2 src/d1/f1.txt dst2 && ls -ld dst2/src/d1 drwxr-xr-x 3 niko niko 4096 Oct 11 15:56 dst2/src/d1 It looks like the directory is first created with the original timestamp, but the stamp will be updated if a file is later generated immediately below it. Which makes sense to me. So I don't think cp is doing anything wrong here. The best fix I can think of is adding a 'sort -z' in the pipeline between find and xargs. Note that there's very similar code in dh_install and dh_installexamples that may well be equally affected. -- Niko Tyni nt...@debian.org _______________________________________________ Reproducible-builds mailing list Reproducible-builds@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/reproducible-builds