tree a716559335169a269caad80339c560df674e2e12
parent 7a02899443e7012871f1f7545b06643cb5051736
author Marcel van Lohuizen <mpvl@golang.org> 1579212568 +0100
committer Marcel van Lohuizen <mpvl@golang.org> 1579294455 +0000

pkg/tool: update documentation and remove $before

$before is redundant and seems like it may cause
limitations down the road. Removed as a precaution.
Documentation has been updated to reflect current
features.

Closes #223.

Note that environment variables will now be
implemented as `tool/env` and as an option to
`tool/exec.Run`. Flags will likely be a task type
end be refereneable as, say, `tool/flags.Set`.

Change-Id: Ic87766b6af2e546c25b30ada3f8a75e3c796b70d
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/4740
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>