Bug 1556732

Summary:	rdoc crashes when expression contains embedded comment: no implicit conversion of nil into String (TypeError)
Product:	[Fedora] Fedora	Reporter:	Dan Callaghan <dcallagh>
Component:	rubygem-rdoc	Assignee:	Vít Ondruch <vondruch>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	28	CC:	mmorsi, strzibny, vondruch
Target Milestone:	---	Keywords:	Reopened
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	rubygem-rdoc-6.0.2-1.fc29 rubygem-rdoc-6.0.2-1.fc28	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-03-30 13:16:00 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:	1528846
Bug Blocks:	1556412

Description Dan Callaghan 2018-03-15 07:14:41 UTC

Description of problem:
This crash happens during the rdoc build of the rubygem-sup package which causes it to FTBFS (bug 1556412). See that bug for a complete stack trace.

This is also filed upstream as:
https://github.com/ruby/rdoc/issues/585

Version-Release number of selected component (if applicable):
rubygem-rdoc-6.0.1-90.fc29.noarch

How reproducible:
somewhat easily

Steps to Reproduce:
see minimal reproducer in https://github.com/ruby/rdoc/issues/585#issuecomment-357513625

Actual results:
error generating Redwood/ThreadViewMode.html: no implicit conversion of nil into String (TypeError)

Expected results:
should produce docs successfully

Additional info:
According to the upstream issue, a fix is merged to master but not in any release yet:
https://github.com/ruby/rdoc/pull/586

Comment 1 Vít Ondruch 2018-03-19 11:41:57 UTC

Hi Dan,

Thx for the analysis and report of this issue. I'll try to get back to it, but meanwhile, I asked Ruby upstream to backport the fix.

Comment 2 Vít Ondruch 2018-03-22 11:14:51 UTC

SHould be resolved now, since I was able to scratch build rubygem-sup

Comment 3 Dan Callaghan 2018-03-22 22:50:40 UTC

Thanks! It is indeed fixed in rawhide.

But this bug actually exists in F28 as well, with rubygem-rdoc-5.1.0-3.fc28. Sorry, I should have filed it against F28 in the first place. Is it possible to backport this fix to F28?

Comment 4 Fedora Update System 2018-03-23 09:25:08 UTC

rubygem-rdoc-6.0.2-1.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-c20ac1671a

Comment 5 Vít Ondruch 2018-03-23 09:27:43 UTC

I submitted the update and override for F28:

~~~
$ bodhi overrides save rubygem-rdoc-6.0.2-1.fc28 --notes "Needed by rubygem-sup"
============================================================
     rubygem-rdoc-6.0.2-1.fc28
============================================================
  Submitter: vondruch
  Expiration Date: 2018-03-30 09:26:01
  Notes: Needed by rubygem-sup
  Expired: False


Use the following to ensure the override is active:

	$ koji wait-repo f28-build --build=rubygem-rdoc-6.0.2-1.fc28
~~~

Comment 6 Fedora Update System 2018-03-23 14:45:51 UTC

rubygem-rdoc-6.0.2-1.fc28 has been pushed to the Fedora 28 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-c20ac1671a

Comment 7 Dan Callaghan 2018-03-25 22:45:08 UTC

Thanks!

Comment 8 Fedora Update System 2018-03-30 13:16:00 UTC

rubygem-rdoc-6.0.2-1.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.