[arquillian-issues] [JBoss JIRA] (ARQ-921) Make environment variables available for property replacement in configuration

[Dan Allen (JIRA)]

    [ https://issues.jboss.org/browse/ARQ-921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12692462#comment-12692462 ] 

Dan Allen commented on ARQ-921:
-------------------------------

I thought about allowing the prefix to be customized in the engine configuration, as follows:

{code:xml}
<engine>
    <property name="environment">env</property>
</engine>
{code}

However, this seems like excessive configuration. I don't really think developers care what the prefix is, as long as it's documented.

The only question is whether we should allow disabling (or enabling) the automatic transfer of environment variables to the system property table. If so, we could do something like:

{code:xml}
<engine>
    <property name="useEnvironment">true</property>
</engine>
{code}
                
> Make environment variables available for property replacement in configuration
> ------------------------------------------------------------------------------
>
>                 Key: ARQ-921
>                 URL: https://issues.jboss.org/browse/ARQ-921
>             Project: Arquillian
>          Issue Type: Enhancement
>      Security Level: Public(Everyone can see) 
>          Components: Configuration
>    Affects Versions: 1.0.0.Final
>            Reporter: Dan Allen
>
> Copy all the environment variables to the base property "env" in the system property table. Using the base property avoids conflicts with property names. This strategy is typical in build systems.
> For example, assume the following environment variable is defined:
> {code}
> JBOSS_HOME=/opt/jboss-as
> {code}
> This environment variable can be referenced from the configuration (arquillian.xml) as follows: 
> {code}
> ${env.JBOSS_HOME}
> {code}
> A system property may be used to override an environment variable, as follows:
> {code}
> -Denv.JBOSS_HOME=/home/user/opt/jboss-as
> {code}

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