Bug#877418: closed by Chris Lamb <lamby at debian.org> (Bug#877418: fixed in strip-nondeterminism 0.039-1)

[Rob Browning]

reopen 877418
thanks

Debian Bug Tracking System <owner at bugs.debian.org> writes:

>    * Clojure considers the .class file to be stale if it shares the same
>      timestamp of the .clj. We thus adjust the timestamps of the .clj to always
>      be younger. (Closes: #877418)
>      - {jar,zip}.pm: Allow $options{member_normalizer} callback to support
>        specifying the timestamp.
>      - zip.pm: Calculate the target canonical time in just one place.
>      * zip.pm: Ensure that we don't try and write an old timestamp;
>        Archive::Zip will do this anyway, just noisily.

Hmm, it looks like the fix may not have been sufficient, or there's been
a regression.  With the current clojure 1.8.0-5 and
dh-strip-nondeterminism 0.042-1, building clojure1.8 via "fakeroot
debian/rules binary" normally reveals:

  $ time java -cp debian/libclojure1.8-java/usr/share/java/clojure.jar clojure.main -e ''

  real    0m3.832s
  user    0m11.411s
  sys     0m0.206s

and with dh-strip-nodeterminism symlinked to /bin/true in the path:

  $ time java -cp debian/libclojure1.8-java/usr/share/java/clojure.jar clojure.main -e ''

  real    0m0.846s
  user    0m1.600s
  sys     0m0.076s

Looking inside the jar, core.clj and derived class files, for example,
do appear to have the same timestamps:

  $ jar tvf debian/libclojure1.8-java/usr/share/java/clojure.jar \
      | grep -E 'clojure/core(\.clj|\$interleave)'

     580 Mon Mar 19 16:59:46 CDT 2018 clojure/core$interleave$fn__5149.class
    1138 Mon Mar 19 16:59:46 CDT 2018 clojure/core$interleave$fn__5151.class
    1740 Mon Mar 19 16:59:46 CDT 2018 clojure/core$interleave$fn__5154.class
    1826 Mon Mar 19 16:59:46 CDT 2018 clojure/core$interleave.class
  251643 Mon Mar 19 16:59:46 CDT 2018 clojure/core.clj

Thanks
-- 
Rob Browning
rlb @defaultvalue.org and @debian.org
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