Please describe the problem.

git annex enable-tor fails with an error in the KDE su dialog window:

Cannot execute command ' ''\''/home/adam/software/scm/git-annex.static/git-annex'\'' '\''enable-tor'\'' '\''1000'\''''.

The console shows the following:

enable-tor
  You may be prompted for a password
org.kde.kdesud: priority set to  50
org.kde.kdesud: Scheduler set to  0

git-annex: Failed to run as root: /home/adam/software/scm/git-annex.static/git-annex enable-tor 1000
failed
git-annex: enable-tor: 1 failed

Interestingly this happens on my openSUSE Tumbleweed system running XFCE4 (not KDE), but not on the peer I'm trying to pair with, which is an older openSUSE Leap 15.0 box. On the latter, for some reason that uses gksu, even though both systems are running XFCE4:

enable-tor
  You may be prompted for a password
gksu-run: gksu/'|home|adam|software|scm|git-annex.static|git-annex' 'enable-tor' '1000'/9140-0-pacific_TIME0
gksu-run: e680f4b50a49c297709613029db91b7a

  Tor hidden service is configured. Checking connection to it. This may take a few minutes.

  Tor hidden service is working.
ok

What steps will reproduce the problem?

Simply run git-annex enable-tor

Workaround

I found that a valid workaround is to su to root, cd to the same repo, and run git annex enable-tor 1000.

What version of git-annex are you using? On what operating system?

The identical statically compiled 7.20190912-g05bc37910 is running on both the failing Tumbleweed system and the succeeding Leap 15.0 system.

Please provide any additional information below.

Here is the relevant fragment of the process tree:

  |   |-zsh,9829
  |   |   |-git,21554 annex enable-tor
  |   |   |   `-git-annex,21555 --library-path /home/adam/software/scm/git-annex.static//usr/lib/x86_64-linux-gnu/gconv:/home/adam/software/scm/git-annex.static//usr/lib/x86_64-linux-gnu/audit>
  |   |   |       |-kdesu,21584 '/home/adam/software/scm/git-annex.static/git-annex' 'enable-tor' '1000'
  |   |   |       |   |-{kdesu},21585
  |   |   |       |   |-{kdesu},21586
  |   |   |       |   |-{kdesu},21588
  |   |   |       |   |-{kdesu},21589
  |   |   |       |   |-{kdesu},21591
  |   |   |       |   `-{kdesu},21595
  |   |   |       |-{git-annex},21579
  |   |   |       |-{git-annex},21580
  |   |   |       |-{git-annex},21581
  |   |   |       `-{git-annex},21583

You can clearly see that the arguments to kdesu have extra quotes, which I'm guessing is part of the problem:

$ xxd /proc/21584/cmdline
00000000: 6b64 6573 7500 272f 686f 6d65 2f61 6461  kdesu.'/home/ada
00000010: 6d2f 736f 6674 7761 7265 2f73 636d 2f67  m/software/scm/g
00000020: 6974 2d61 6e6e 6578 2e73 7461 7469 632f  it-annex.static/
00000030: 6769 742d 616e 6e65 7827 2027 656e 6162  git-annex' 'enab
00000040: 6c65 2d74 6f72 2720 2731 3030 3027 00    le-tor' '1000'.

Have you had any luck using git-annex before? (Sometimes we get tired of reading bug reports all day and a lil' positive end note does wonders)

Yes, lots and lots for many years :-)

turns out kdesu needs -c in order to treat the single parameter that is passed to it as a command line. fixed --Joey