Bug 1392234

Summary:	Generating new controller fails with Could not find a JavaScript runtime
Product:	[Community] softwarecollections.org	Reporter:	Lukas Zapletal <lzap>
Component:	rh-ror42	Assignee:	Jakub Dorňák <jdornak>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	1.0	CC:	hhorak, vondruch
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OS:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Last Closed:	2016-11-07 12:06:16 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Lukas Zapletal 2016-11-06 16:05:22 UTC

[root@ibm-x3650m4-02-vm-05 project]# rails generate controller pages
/opt/rh/rh-ror42/root/usr/share/gems/gems/execjs-2.2.0/lib/execjs/runtimes.rb:51:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
        from /opt/rh/rh-ror42/root/usr/share/gems/gems/execjs-2.2.0/lib/execjs.rb:5:in `<module:ExecJS>'
        from /opt/rh/rh-ror42/root/usr/share/gems/gems/execjs-2.2.0/lib/execjs.rb:4:in `<top (required)>'
        from /opt/rh/rh-ror42/root/usr/share/gems/gems/uglifier-2.4.0/lib/uglifier.rb:3:in `require'
        from /opt/rh/rh-ror42/root/usr/share/gems/gems/uglifier-2.4.0/lib/uglifier.rb:3:in `<top (required)>'
        from /opt/rh/rh-ruby23/root/usr/share/gems/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `require'
        from /opt/rh/rh-ruby23/root/usr/share/gems/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
        from /opt/rh/rh-ruby23/root/usr/share/gems/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `each'
        from /opt/rh/rh-ruby23/root/usr/share/gems/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `block in require'
        from /opt/rh/rh-ruby23/root/usr/share/gems/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `each'
        from /opt/rh/rh-ruby23/root/usr/share/gems/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `require'
        from /opt/rh/rh-ruby23/root/usr/share/gems/gems/bundler-1.10.6/lib/bundler.rb:134:in `require'
        from /root/project/config/application.rb:7:in `<top (required)>'
        from /opt/rh/rh-ror42/root/usr/share/gems/gems/spring-1.4.0/lib/spring/application.rb:82:in `require'
        from /opt/rh/rh-ror42/root/usr/share/gems/gems/spring-1.4.0/lib/spring/application.rb:82:in `preload'
        from /opt/rh/rh-ror42/root/usr/share/gems/gems/spring-1.4.0/lib/spring/application.rb:143:in `serve'
        from /opt/rh/rh-ror42/root/usr/share/gems/gems/spring-1.4.0/lib/spring/application.rb:131:in `block in run'
        from /opt/rh/rh-ror42/root/usr/share/gems/gems/spring-1.4.0/lib/spring/application.rb:125:in `loop'
        from /opt/rh/rh-ror42/root/usr/share/gems/gems/spring-1.4.0/lib/spring/application.rb:125:in `run'
        from /opt/rh/rh-ror42/root/usr/share/gems/gems/spring-1.4.0/lib/spring/application/boot.rb:18:in `<top (required)>'
        from /opt/rh/rh-ruby23/root/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:55:in `require'
        from /opt/rh/rh-ruby23/root/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:55:in `require'
        from -e:1:in `<main>'

Looks like a dependency is missing.


The same error when I attempt to start the server.

Followed: https://www.softwarecollections.org/en/scls/rhscl/rh-ror42/

Instructions
You can get started in three easy steps:

# 1. Install a package with repository for your system:
# On CentOS, install package centos-release-scl available in CentOS repository:
$ sudo yum install centos-release-scl

# On RHEL, enable RHSCL repository for you system:
$ sudo yum-config-manager --enable rhel-server-rhscl-7-rpms

# 2. Install the collection:
$ sudo yum install rh-ror42

# 3. Start using software collections:
$ scl enable rh-ror42 bash
At this point you should be able to use rails just as a normal application. Examples of commands run might be:

$ rails new project
$ cd project
$ rails server -p 8080
$ rails generate controller pages

Comment 1 Vít Ondruch 2016-11-07 10:49:00 UTC

Thx for the report.

I'd say that this is somewhat expected, since we don't enable nodejs collection by default (although it is pulled in when the metapackage is installed). But the documentation should be clarified.

Comment 2 Vít Ondruch 2016-11-07 11:03:16 UTC

I think the simplest change could be s/\$ scl enable rh-ror42 bash/\$ scl enable rh-nodejs4 rh-ror42 bash/ ... I am not sure we should go more into details ...

Comment 3 Vít Ondruch 2016-11-07 12:06:16 UTC

The documentation was fixed.

Comment 4 Lukas Zapletal 2016-11-07 14:22:44 UTC

Thanks folks!