Bug 1609464

Summary:	[RFE] Support selection with regex on fields which are of 'string list' type
Product:	[Community] LVM and device-mapper	Reporter:	Oliver Rath <oliver>
Component:	lvm2	Assignee:	Peter Rajnoha <prajnoha>
lvm2 sub component:	Displaying and Reporting	QA Contact:	cluster-qe <cluster-qe>
Status:	NEW ---	Docs Contact:
Severity:	low
Priority:	unspecified	CC:	agk, heinzm, jbrassow, msnitzer, prajnoha, zkabelac
Version:	2.02.177	Flags:	rule-engine: lvm-technical-solution? rule-engine: lvm-test-coverage?
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Oliver Rath 2018-07-28 06:23:01 UTC

Im trying to sort some output with lvs using a regex "=~", which results
in an error:

# lvs -o lv_name,lv_tags -S 'lv_tags=~mac1'
  dm_report: incompatible comparison type for selection field lv_tags

Otherwise, using the =~ operator on lv_names works well:

# lvs -o lv_name -S 'lv_name=~z'
  LV 
  z1 
  z2 
  z3 

If I see right, I can use the selection type "string list" here, but no
regex. Is this right? Is there a way to use regex on tags?

Comment 1 Peter Rajnoha 2021-03-02 12:54:31 UTC

Yes, exactly - we don't support regex with "string list" field types yet, only the "string" type. I've already had feedback from another source requesting this, so we may try to add support for this. Looks the only thing needed here is to iterate over the string in the list and run the regex for each and match if at least one of the elements match...