API to access environment variables in vm

[sigmundch]

It would be really useful to have access to the terminal's environment variables. I have in mind something similar to 'process.env' in nodejs.

[DartBot]

This comment was originally written by Bradley...@gmail.com

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In conjunction with this, there should be a way to set environmental variables on new Process. Working directory is good, but if I need a worker process to integrate with a system using environmental variables, this is a must.

[iposva-google]

This could be added to the Options interface:
Map<String, String> environment();

Created issue #2193 for the feature request in comment 1.

[munificent]

We don't need this right this second for pub, but it is certain that we will need it before too long. Can I make a friendly request for this to be implemented in the near future?

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cc @iposva-google.
cc @madsager.

[madsager]

Putting this higher on my list.

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Set owner to @madsager.
Added Accepted label.

[munificent]

Thanks!

[munificent]

Oh, and just to clarify, we will likely need both:

1. The ability to query the set of environment variables available to the current process.
2. The ability to provide environment variables when spawning a process.

#­1 is obvious, but #­2 will be very helpful for the test infrastructure for pub which generally works by invoking pub in its own process.

[madsager]

Sounds good. They do go hand in hand and I'll see if I can get to do both ASAP. I have accepted issue #2193 as well.

[madsager]

Issue #1791 has been merged into this issue.

[madsager]

First step implemented. Access to environment variables from a script.

Map<String, String> env = new Platform().environment();

Next step: providing an environment to a child process. Tracked in issue #2193.

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Added Fixed label.

[munificent]

Thanks!