[Bug 1628279] Re: python utilities script suffix (.py) should be removed as per Policy 10.4

[Andy Whitcroft]

Hello Eric, or anyone else affected,

Accepted zfs-linux into xenial-proposed. The package will build now and
be available at https://launchpad.net/ubuntu/+source/zfs-
linux/0.6.5.6-0ubuntu14 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: zfs-linux (Ubuntu Xenial)
       Status: In Progress => Fix Committed

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Title:
  python utilities script suffix (.py) should be removed as per Policy
  10.4

Status in zfs-linux package in Ubuntu:
  Fix Released
Status in zfs-linux source package in Xenial:
  Fix Committed

Bug description:
  [Impact]

  The zfs utilities scripts shipped with debian and ubuntu such as :

      * arc_summary.py : Provides a summary of the statistics
      * arcstat.py : Print out ZFS ARC Statistics exported via kstat(1)
      * dbufstat.py : Print out statistics for all cached dmu buffers

  should be renamed according to Policy 10.4 :
  https://www.debian.org/doc/debian-policy/ch-files.html#s-scripts

  "When scripts are installed into a directory in the system PATH, the
  script name should not include an extension such as .sh or .pl that
  denotes the scripting language currently used to implement it."

  Ideally, this should be fixed and upstreamed to Debian (or to zfslinux
  upstream) as well.

  [Test Case]

   * Install zfsutils-linux
   * List files

   $ dpkg -L zfsutils-linux | egrep "arc|dbufstat"
     /usr/sbin/arc_summary.py
     /usr/sbin/arcstat.py
     /usr/sbin/dbufstat.py

  [Regression Potential]

   * none expected, this is a trivial change that simply rename the
  scripts to remove the extension (.py) with a simple 'mv' before the
  dh_install invocation in order to get this expected result :

  $ dpkg -L zfsutils-linux | egrep -i "arc|dbuf"
    /usr/sbin/arc_summary
    /usr/sbin/arcstat
    /usr/sbin/dbufstat

  Yakkety include the renaming as shown above.

  Xenial will have a symlink to not break user experience until next release upgrade:
  https://bugs.launchpad.net/ubuntu/xenial/+source/zfs-linux/+bug/1628279/comments/19

  So user will be able to use both for instance : arcstat.py or arcstat

  
  [Other Info]

   * Justification/argument for Xenial
  https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1628279/comments/13
  https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1628279/comments/14

  * Debian bug
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=839645

   * Upstream (ZoL) is reluctant to change it at upstream code level.
  https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1628279/comments/2

   * This has been flag by Adam Conrad
  https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1574342/comments/19

   * Debian policy
  https://www.debian.org/doc/debian-policy/ch-files.html#s-scripts

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