Re: [FEATURE REQUEST] Filter-branch extend progress with a simple estimated time remaning

Eric Sunshine [off-list ref] writes:

I suppose a viable approach might be to test once outside the loop if
"date +%s" is supported and print the "(%d elapsed / %d estimated
remaining)" annotation within the loop if it is, else not. The test
might look something like this:

echo $(date +%s) | grep -q '^[0-9][0-9]*$' 2>/dev/null && show_eta=t

Platforms, such as Linux, Mac OS X, and FreeBSD, which support "date
+%s" would get the annotated output, whereas it would fall back
gracefully to the non-annotated output on platforms such as Solaris
(and perhaps AIX) which lack it.

I kind of like this for its simplicity, especially given that it
would cover the vast majority of users in practice.