Helper Functions
Output
ebegin
Like einfo, we output a helpful message and then hint that the following
operation may take some time to complete. Once the task is finished, you
need to call eend.
eend
Followup the ebegin message with an appropriate "OK" or "!!" (for errors)
marker. If status is non-zero, then the additional error message is
displayed.
einfo
Same as elog, but should be used when the message isn't important
to the user (like progress or status messages during the build process).
elog
If you need to display a message that you wish the user to read
and take notice of, then use elog. It works just like echo(1),
but adds a little more to the output so as to catch the user's eye.
The message will also be logged by portage for later review.
eqawarn
Same as einfo, but should be used when showing a QA warning to the user.
ewarn
Same as einfo, but should be used when showing a warning to the user.