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Programming: Debian, Python and LibreOffice

Submitted by Rianne Schestowitz on Sunday 24th of November 2019 04:55:17 AM Filed under
Development
  • Dirk Eddelbuettel: digest 0.6.23: More sha1 refinements

    Another new version of digest got onto CRAN earlier today, and was also uploaded to Debian.

    digest creates hash digests of arbitrary R objects (using the md5, sha-1, sha-256, sha-512, crc32, xxhash32, xxhash64, murmur32, and spookyhash algorithms) permitting easy comparison of R language objects. It is a fairly widely-used package (currently listed at 868k monthly downloads) as many tasks may involve caching of objects for which it provides convenient general-purpose hash key generation.

    This release comes again one month after the previous release and contains further refinements for sha1 digests, thanks once more to Bill Denney and Thierry Onkelinx who added more support for formulae and better support for object attributes. I added some refinement for the encoding / utf8 filename tests from the previous to round things off.

  • Zsh prompt with asynchronous Git status

    Zsh ships vcs_info, a function fetching information about the VCS state for the current directory and populating a variable that can be used in a shell prompt.

  • Talk Python to Me: #239 Bayesian foundations

    In this episode, we'll dive into one of the foundations of modern data science, Bayesian algorithms, and thinking. Join me along with guest Max Sklar as we look at the algorithmic side of data science.

  • Support windows bar calendar

    Like any large suite of applications, Open edX software (my day job) depends on a number of underpinnings: Django, Python, Ubuntu, MySQL, and so on. We want to stay up-to-date on those dependencies, or at least ensure we are using supported versions of each.

    To help with that, I wanted to make a chart of the support windows for different versions of each dependency. I figured the simplest way to draw a chart like that was to make a spreadsheet. Google Sheets is enough for something like this, and makes it easy to share the result with others who need to refer to it.

    To create the spreadsheet programmatically, I used the JavaScript scripting support. My program went through a few other iterations before landing on this technique, so it’s in kind of a strange form now: it’s a Python program that writes JavaScript, which you then paste into a spreadsheet and run.

  • LibreOffice coverity scan

    When we make C++17 a requirement for LibreOffice at the end of 2018 the version of coverity provided by scan.coverity.com no longer worked for us. In July 2019 a newer version of the coverity tooling was available which supported C++17 and analysis resumed.

    Prior to losing coverity support we had a defect density (i.e. defects per 1,000 line of code) of 0, on its return this had inflated to 0.06 due to both new defects introduced during the down period and old defects newly detected due to additional checks introduced in the new version.

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