externalbackend: reverts back cmd encoding

[roksys]

This PR reverts back CMD encoding which was deleted in e4d0cb4
Signed-off-by: Rokas Maciulaitis rokas.maciulaitis@cern.ch

[dprelipcean]

LGTM, but can't successfully run the BSM search, I get permission errors at the end of the analysis:

Traceback (most recent call last):
  File "/code/hepdata_export.py", line 53, in <module>
    main()
  File "/code/hepdata_export.py", line 45, in main
    with open('submission.yaml','w') as f:
IOError: [Errno 13] Permission denied: 'submission.yaml'
	zip warning: name not matched: submission.yaml
	zip warning: name not matched: data1.yam

and

Traceback (most recent call last):
  File "/usr/local/bin/hfquickplot", line 9, in <module>
    load_entry_point('hftools==0.0.6', 'console_scripts', 'hfquickplot')()
  File "/usr/local/lib/python2.7/dist-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python2.7/dist-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python2.7/dist-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python2.7/dist-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/hftools/plotting/quickplot_cli.py", line 112, in fit
    save_pars(ws,output,False)
  File "/usr/local/lib/python2.7/dist-packages/hftools/plotting/quickplot_cli.py", line 51, in save_pars
    with open(output,'w') as results:
IOError: [Errno 13] Permission denied: u'fitresults.yml'

Do you know about them?

[tiborsimko]

Works for small demo workflows.

For a BSM workflow, I get:

$ reana-client status -w bsm-search.serial
NAME                RUN_NUMBER   CREATED               STATUS   PROGRESS
bsm-search.serial   1            2019-09-13T14:53:17   failed   65/65

$ reana-client logs -w bsm-search.serial
[#0] WARNING:InputArguments -- RooAbsReal::createHistogram(L_x_qcd_channel1_overallSyst_x_Exp) WARNING extended mode requested for a non-pdf object, ignored
[#1] INFO:InputArguments -- RooAbsReal::createHistogram(L_x_qcd_channel1_overallSyst_x_Exp) INFO: Model has intrinsic binning definition, selecting that binning for the histogram
Traceback (most recent call last):
  File "/code/hepdata_export.py", line 53, in <module>
    main()
  File "/code/hepdata_export.py", line 45, in main
    with open('submission.yaml','w') as f:
IOError: [Errno 13] Permission denied: 'submission.yaml'
        zip warning: name not matched: submission.yaml
        zip warning: name not matched: data1.yaml

zip error: Nothing to do! (/var/reana/users/00000000-0000-0000-0000-000000000000/workflows/3d2508ae-c771-4cb5-be8f-b030a275dc23/hepdata/submission.zip)

Perhaps something else needs checking/reverting?

(recall that BSM adds steps as it goes...)

[tiborsimko]

BTW the images use uid=0(root) gid=0(root) groups=0(root) still...