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layout: new/blog
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week: 179
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published: 2018-10-01 17:34:43
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Here's what happened in the [Reproducible Builds](https://reproducible-builds.org) effort between Sunday September 23 and Saturday September 29 2018:
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* Another reminder that the **fourth Reproducible Builds summit will take place in December 11th—13th 2018** at [Mozilla](https://wiki.mozilla.org/Paris)'s offices in Paris, France. If you are interested in attending please register by sending an email to `holger@layer-acht.org`. More details may be found on the [associated event page](https://reproducible-builds.org/events/paris2018/).
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* Holger Levsen is requesting review and comments on [a multi-project syntax notes proposal](https://salsa.debian.org/reproducible-builds/reproducible-notes/blob/multi-project-syntax/README). He hopes to implement this in the next few weeks.
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* [A pull request was proposed](https://github.com/python/cpython/pull/9607) to [CPython](https://github.com/python/cpython) to ensure [`SOURCE_DATE_EPOCH`](https://reproducible-builds.org/specs/source-date-epoch/) only influences the default type of `.pyc` files (yet does not enforce it).
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* [Guillem Jover](https://www.hadrons.org/~guillem/) uploaded [dpkg 1.19.1 to Debian unstable](https://tracker.debian.org/news/989886/accepted-dpkg-1191-source-into-unstable/), adding support for dumping database package records in alphabetical order in order to provide reproducible `status` and `available` database files, and further make it possible to output other "[deb822](https://manpages.debian.org/unstable/dpkg-dev/deb822.5.en.html)"-formatted data in a deterministic way. In addition, the `Dpkg::Vendor::Debian` library gained support for a reproducibility-related `fixfilepath` feature.
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* Jelle van der Waa [started a TODO list](https://www.archlinux.org/todo/imagemagicks-convert-not-reproducible-in-pkgbuilds/) to fix unreproducible `PKGBUILD` files in [Arch Linux](https://www.archlinux.org/) which use the [Imagemagick](https://www.imagemagick.org/script/index.php) graphics library's `convert(1)` utility for image manipulation which embeds the `date:create` and `date:modify` file headers.
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* `disorderfs` version `0.5.4-1` (our [FUSE](https://github.com/libfuse/libfuse)-based filesystem that deliberately introduces non-determinism into filesystem metadata) was [uploaded to Debian unstable](https://tracker.debian.org/news/989895/accepted-disorderfs-054-1-source-amd64-into-unstable/) by Chris Lamb. It included a number of contributions [covered previously](https://salsa.debian.org/reproducible-builds/disorderfs/commits/debian/0.5.4-1).
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* A fix to ensure to that [fontconfig](https://www.freedesktop.org/wiki/Software/fontconfig/) — a library for configuring and customizing font access — [landed in Debian unstable](https://bugs.debian.org/864082#96) (via upstream).

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* Chris Lamb added four Debian package reviews. In addition, three were updated and 11 were removed in this week, adding to [our knowledge about identified issues](https://tests.reproducible-builds.org/debian/index_issues.html).
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* Bernhard M. Wiedemann discovered problems from [arch-dependent `noarch` packages](https://bugzilla.opensuse.org/show_bug.cgi?id=1109534) in [openSUSE](https://www.opensuse.org/); there are actually over 1,000 of these.
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Patches filed
-------------

* Bernhard M. Wiedemann:

    * [build-compare](https://github.com/openSUSE/build-compare/pull/30) (better quoting of strings)
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    * [cpio](https://build.opensuse.org/request/show/638582) (drop date using `gettextize --no-changelog`)
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    * [foma/malaga-suomi](https://github.com/mhulden/foma/pull/78) (merged, segfault bug, noarch)
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    * [gromacs](https://gerrit.gromacs.org/8151) (merged, drop user+host+date+CPU info)
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    * [kubernetes](https://github.com/kubernetes/kubernetes/pull/68983) (merged, sort sets for reproducible manual pages)
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    * [ldc](https://github.com/ldc-developers/ldc/pull/2812) (merged, drop CPU type from manpage)
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    * [mapcrafter](https://github.com/mapcrafter/mapcrafter/pull/283) (use `convert -strip`)
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    * [nfoview](https://build.opensuse.org/request/show/638547) (version-update, filesyssystem)
    * [obs-build](https://github.com/openSUSE/obs-build/pull/466) (use `virtio-serial`)
    * [plasma5-desktop](https://bugzilla.opensuse.org/show_bug.cgi?id=1109420) (parallelism/race)
    * [post-build-checks](https://bugzilla.opensuse.org/show_bug.cgi?id=1109470) (bug from arch-dependent `noarch` package)
    * [something-for-rabbit](https://build.opensuse.org/request/show/638283) (make it `noarch`)
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    * [vit](https://build.opensuse.org/request/show/638282) (date)
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    * [yast-x11](https://github.com/yast/yast-x11/pull/18) (merged, sort hash, `noarch`)
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* Chris Lamb:

    * [#909476](https://bugs.debian.org/909476) filed against [botan](https://tracker.debian.org/pkg/botan).
    * [#909568](https://bugs.debian.org/909568) filed against [infnoise](https://tracker.debian.org/pkg/infnoise).
    * [#909782](https://bugs.debian.org/909782) filed against [libinput](https://tracker.debian.org/pkg/libinput).


diffoscope development
----------------------

[diffoscope](https://diffoscope.org/) (our in-depth "diff-on-steroids" utility which helps us diagnose reproducibility issues in packages) was [updated in Debian unstable](https://tracker.debian.org/news/989165/accepted-diffoscope-102-source-into-unstable/) by Mattia Rizzolo. It included [contributions already covered in previous weeks](https://salsa.debian.org/reproducible-builds/diffoscope/commits/102) but also included new changes from:

* Chris Lamb:
    * [Strip trailing whitespace from `ssconvert(1)` output to support gnumeric 1.12.43](https://salsa.debian.org/reproducible-builds/diffoscope/commit/e9d3062),

* Mattia Rizzolo:
    * [Ignore continuous-integration failures in Debian testing](https://salsa.debian.org/reproducible-builds/diffoscope/commit/7f9f0ac).
    * [Adapt tests to the output of gnumeric 1.12.43](https://salsa.debian.org/reproducible-builds/diffoscope/commit/ef5ae49).
    * [In Debian, list `liblz4-tool` as an alternative to the lz4 package](https://salsa.debian.org/reproducible-builds/diffoscope/commit/89e7e67).


Test framework development
--------------------------

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There were a huge number of updates to our [Jenkins](https://jenkins.io/)-based testing framework that powers [tests.reproducible-builds.org](https://tests.reproducible-builds.org/) by Holger Levsen this week, including:
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* [Arch Linux](https://www.archlinux.org/)-specific changes:

    * [Introduce user/group variations](https://salsa.debian.org/qa/jenkins.debian.net/commit/3977ee6a) in order to detect reproducibility issues.
    * [Add a script to manually schedule packages](https://salsa.debian.org/qa/jenkins.debian.net/commit/d1c149f8).
    * [Detect failure to download from Git repositories](https://salsa.debian.org/qa/jenkins.debian.net/commit/9d91a3fb).
    * Perform a [`chown(1)` call on the build directory to the `build2` user](https://salsa.debian.org/qa/jenkins.debian.net/commit/30d9ce83) to ensure it becomes writeable.
    * [Announce summary of scheduled packages again](https://salsa.debian.org/qa/jenkins.debian.net/commit/41620d4a).
    * [Fix scheduling of old packages](https://salsa.debian.org/qa/jenkins.debian.net/commit/2738c0f2).
    * [Fix `CSV` statistic storage](https://salsa.debian.org/qa/jenkins.debian.net/commit/a4406fec).
    * Reschedule ["depwait" and "404" packages after 24 hours has elapsed](https://salsa.debian.org/qa/jenkins.debian.net/commit/0bf88f0f), [packages in 404\_ state after two days](https://salsa.debian.org/qa/jenkins.debian.net/commit/c0f02102) and [`DEPWAIT` state after two days](https://salsa.debian.org/qa/jenkins.debian.net/commit/0db4c960).
    * [Ignore long-living schroots in maintenance job](https://salsa.debian.org/qa/jenkins.debian.net/commit/1ff6d6ec) which was finding old schroots by accident.
    * [Correctly detect and report if pacman cannot lock its database](https://salsa.debian.org/qa/jenkins.debian.net/commit/0810f04c).
    * [Detect "The requested URL returned error: 504" (gateway timeout)](https://salsa.debian.org/qa/jenkins.debian.net/commit/0be9051e) build failures.
    * [Create pages of packages in "repository X in Y" states](https://salsa.debian.org/qa/jenkins.debian.net/commit/b62d74f4).
    * [Create a job to update Archlinux webpages every thirty minutes](https://salsa.debian.org/qa/jenkins.debian.net/commit/0bc16c61) as well as [create links between pages](https://salsa.debian.org/qa/jenkins.debian.net/commit/777ffcdf).
    * [Use the `${PKG_ID}` variable consistently](https://salsa.debian.org/qa/jenkins.debian.net/commit/e9d77190)

* [Debian GNU/Linux](https://www.debian.org/)-specific changes:

    * Mark [odxu4a as offline](https://salsa.debian.org/qa/jenkins.debian.net/commit/44c1c9da) and [then back up](https://salsa.debian.org/qa/jenkins.debian.net/commit/78b8f1e9) (!)
    * [Extend the `check_node_is_up()` utility](https://salsa.debian.org/qa/jenkins.debian.net/commit/72a6c362). This ensures that nodes not accidentally marked as offline
    * [Set `man-db/auto-update` debconf to false and configure `dpkg` to use the `force-unsafe-io` flag](https://salsa.debian.org/qa/jenkins.debian.net/commit/82e2d938) to speed up builds.

* Misc changes:

    * Shorten IRC messages ([1](https://salsa.debian.org/qa/jenkins.debian.net/commit/ba3eaa65) & [2](https://salsa.debian.org/qa/jenkins.debian.net/commit/f76ce377)).
    * Provide overviews of [monthly](https://salsa.debian.org/qa/jenkins.debian.net/commit/4a8a2e23) graphs from [Munin](http://munin-monitoring.org/) as well as [yearly](https://salsa.debian.org/qa/jenkins.debian.net/commit/34df443b).
    * [Mark nodes as offline after hours of failures](https://salsa.debian.org/qa/jenkins.debian.net/commit/f8d3d67b).
    * [Configure iptables to drop incoming UDP packets](https://salsa.debian.org/qa/jenkins.debian.net/commit/ae6b92f1) - thanks, Bernhard M. Wiedemann!
    * [Ignore Archlinux builds](https://salsa.debian.org/qa/jenkins.debian.net/commit/2f701ff7)  when looking for breakages.
    * [Fix the MacPorts diffoscope check](https://salsa.debian.org/qa/jenkins.debian.net/commit/2af0e998).
    * [Add a new "job health overview" page](https://salsa.debian.org/qa/jenkins.debian.net/commit/9b48b877).
    * [Split `html_nodes_info` job into two jobs](https://salsa.debian.org/qa/jenkins.debian.net/commit/4f98a241) for flexibility.
    * [Keep fewer log files](https://salsa.debian.org/qa/jenkins.debian.net/commit/b06082e9).
    * [Add notes about which tables Debian is using](https://salsa.debian.org/qa/jenkins.debian.net/commit/cc7db6f7) as some might be useful for Arch Linux too.

In addition, Eli Schwartz [refactored the grepping of build logs into a helper function](https://salsa.debian.org/qa/jenkins.debian.net/commit/6af7b40b), and Mattia Rizzolo made the following changes:

* [Enable all the reproducible-related build flags from `dpkg` by exporting `DEB_BUILD_OPTIONS=reproducible=+all`](https://salsa.debian.org/qa/jenkins.debian.net/commit/48607530).
* [Fix the check for patched packages since we moved from Alioth to Salsa](https://salsa.debian.org/qa/jenkins.debian.net/commit/1cc7bcd6).
* [Don't consider "unknown" suites while building the history page](https://salsa.debian.org/qa/jenkins.debian.net/commit/eb1d60f0).
* [Aid debugging by defining a `__str__` Python "magic" method](https://salsa.debian.org/qa/jenkins.debian.net/commit/4d9ea9e5).
* [Fix a typo in `build.sh`](https://salsa.debian.org/qa/jenkins.debian.net/commit/6fd46e4f).


Misc.
-----

This week's edition was written by Bernhard M. Wiedemann, Chris Lamb, Daniel Shahaf, Holger Levsen, Jelle van der Waa & reviewed by a bunch of Reproducible Builds folks on IRC & the mailing lists.