[Bug 1232128] Re: click package cannot be installed on desktop

[Colin Watson]

This is because:

 * the package was built with a version of click before 0.4.7, which didn't strip .git directories out of built packages
 * objects in .git directories are mode 0444
 * dpkg (called by click to unpack packages) opens files for writing twice, I think in order to provide sync hints to the kernel
 * in dpkg's normal use case this is fine because it's running as root which gets to override DAC permissions, but click drops privileges to run dpkg

The sanest answer is probably just to force the 0600 (owner-writeable)
permission bit on unpacked files.  The unpacked package is unwriteable
from the package's point of view anyway, so it doesn't matter.

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https://bugs.launchpad.net/bugs/1232128

Title:
  click package cannot be installed on desktop

Status in “click” package in Ubuntu:
  New

Bug description:
  Installing this package on 13.10 desktop fails:-

  http://people.canonical.com/~alan/click/fr.skimbo.skimbou_1.2_unknown.click

  alan at deep-thought:~/Downloads$ sudo click install --user=$USER --force-missing-framework  fr.skimbo.skimbou_1.2_unknown.click 
  Selecting previously unselected package fr.skimbo.skimbou.
  (Reading database ... 0 files and directories currently installed.)
  Unpacking fr.skimbo.skimbou (from fr.skimbo.skimbou_1.2_unknown.click) ...
  dpkg: error processing fr.skimbo.skimbou_1.2_unknown.click (--install):
   unable to open '/opt/click.ubuntu.com/fr.skimbo.skimbou/1.2/.git/objects/4e/5e593ba4c1642b88374a6fd9d1f168df052937.dpkg-new': Permission denied
  Errors were encountered while processing:
   fr.skimbo.skimbou_1.2_unknown.click
  Traceback (most recent call last):
    File "/usr/bin/click", line 84, in <module>
      sys.exit(main())
    File "/usr/bin/click", line 79, in main
      mod.run(args)
    File "/usr/lib/python3/dist-packages/click/commands/install.py", line 51, in run
      package_path, user=options.user, all_users=options.all_users)
    File "/usr/lib/python3/dist-packages/click/install.py", line 292, in install
      env=env, **kwargs)
    File "/usr/lib/python3.3/subprocess.py", line 547, in check_call
      raise CalledProcessError(retcode, cmd)
  subprocess.CalledProcessError: Command '['dpkg', '--force-not-root', '--force-bad-path', '--instdir', '/opt/click.ubuntu.com/fr.skimbo.skimbou/1.2', '--admindir', '/opt/click.ubuntu.com/fr.skimbo.skimbou/1.2/.click', '--path-exclude', '*/.click/*', '--log', '/opt/click.ubuntu.com/.click/log', '--no-triggers', '--install', 'fr.skimbo.skimbou_1.2_unknown.click']' returned non-zero exit status 1

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: click 0.4.8
  Uname: Linux 3.11.0-994-generic x86_64
  ApportVersion: 2.12.4-0ubuntu1
  Architecture: amd64
  Date: Fri Sep 27 17:39:45 2013
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2012-06-29 (454 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MarkForUpload: True
  SourcePackage: click
  UpgradeStatus: Upgraded to saucy on 2013-07-12 (77 days ago)

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