Source: apg
Version: 2.2.3.dfsg.1-6
Severity: wishlist
Tags: patch
User: reproducible-bui...@lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-b...@lists.alioth.debian.org
Hi,
Whilst working on the Reproducible Builds effort [0], we noticed that
apg could not be built reproducibly.
Although a value is passed to --mtime, as it is not prefixed by @,
tar gets confused about what date format it is in, leading to the
strange message:
tar: Option --mtime: Treating date '1715341018' as 171534-10-18 00:00:00
This would actually still be deterministic (!) but, as it was not
parsed as a UNIX timestamp, a timezone variation is then applied.
Patch attached that adds the @.
[0] https://reproducible-builds.org/
Regards,
--
,''`.
: :' : Chris Lamb
`. `'` la...@debian.org / chris-lamb.co.uk
`-
--- a/debian/rules 2024-08-19 10:07:43.882848830 +0100
--- b/debian/rules 2024-08-19 10:13:49.059285956 +0100
@@ -21,7 +21,7 @@
make install INSTALL_PREFIX=$(CURDIR)/debian/apg/usr
mv $(CURDIR)/debian/apg/usr/bin/apg $(CURDIR)/debian/apg/usr/lib/apg/apg
tar --create --verbose --file - --directory $(CURDIR)/php/apgonline/ \
- --clamp-mtime --mtime="$(SOURCE_DATE_EPOCH)" \
+ --clamp-mtime --mtime="@$(SOURCE_DATE_EPOCH)" \
--mode=u=rwX,go=rX --sort=name . | gzip --no-name > php.tar.gz
install -D --mode=0644 php.tar.gz
$(CURDIR)/debian/apg/usr/share/doc/apg/php.tar.gz
rm php.tar.gz
