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https://issues.apache.org/jira/browse/MESOS-994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14531189#comment-14531189
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Benjamin Mahler commented on MESOS-994:
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Those are possibly to deal with the poor semantics of os::getenv (by default it
crashes if not set, or if passing 'expect=false' then it returns an empty
string, but this means you can't differentiate between being unset and set to
empty string!) They should all be going through {{os::getenv}} once it returns
an Option<string>.
> Add an Option<string> os::getenv() to stout
> -------------------------------------------
>
> Key: MESOS-994
> URL: https://issues.apache.org/jira/browse/MESOS-994
> Project: Mesos
> Issue Type: Improvement
> Components: stout, technical debt
> Reporter: Ian Downes
> Assignee: Greg Mann
> Labels: newbie
>
> This would replace the common pattern of:
> Option<string> = os::hasenv() ? Option<string>(os::getenv()) : None()
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