Re: [HTCondor-users] job transform: change requirement condition?

[Thomas Hartmann <thomas.hartmann@xxxxxxx>]

Hi Michael,

thanks for the tip with regexps. Unfortunately, the way I have added it
to my job transform seems to have no effect so far.
The job transform should in principle format the Requirement string [1]
but still the resulting job's ad is the old one [2]

From the documentation on regexps I would assume that it should work -
but I am not sure, if 'Requirements' is a 'string target' (should be as
a class ad, or?). Scanning through target also should match and replace
substrings, or?

Cheers and thanks,
  Thomas


[1]
JOB_TRANSFORM_NAMES = $(JOB_TRANSFORM_NAMES), FOOFORM
JOB_TRANSFORM_FOOFORM @=end
[
copy_Requirements = BaseRequirements
set_Requirements = regexps("OpSysAndVer\s*=\?*=\s*\"SL6\"",
BaseRequirements, "OpSysAndVer == \"CentOS7\"")
]
@end


[2]
> condor_history -l JOB.ID
...
>> Requirements = ( OpSysAndVer == "SL6" ) && ( TARGET.Arch == "X86_64"
) && ...

[3]
http://research.cs.wisc.edu/htcondor/manual/v8.6/4_1HTCondor_s_ClassAd.html

String regexps
    (String pattern, String target, String substitute [ , String options
]) Uses the description of a regular expression given by string pattern
to scan through the string target. When target is a regular expression
as described by pattern, the string substitute is returned, with
backslash expansion performed. If any argument is not a string, returns
ERROR.

On 2018-10-10 15:08, Michael Pelletier wrote:
> Seems like you're looking for "regexps()" - to substitute something in the requirements string.
> 
> So you'd match the job with your requirements expression where it's demanding SL6, and then your job transform would do something like this:
> 
> Copy_requirements = RequiresScientificLinux6
> Requirements = regexps("OpSysAndVer\s*=\?*=\s*\"SL6\"", RequiresScientificLinux6, "OpSysAndVer == \"CentOS6\"")
> 
> That ought to do the trick, I think.
> 
> Michael V. Pelletier
> Information Technology
> Digital Transformation & Innovation
> Integrated Defense Systems
> Raytheon Company
> 
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