tree e0086c69be238ba5ca07df806ca5a422171ee5f9
parent d1e83b53a32d75848712c2c5aa1fd57b888db94e
author Sergei Trofimov <sergei.trofimov@arm.com> 1507217850 +0100
committer Sergei Trofimov <sergei.trofimov@arm.com> 1507218086 +0100

shuilt: re-introduce speedup

The previous fix for read_tree_values fixed the issue with sh not
supporting arrays, but looping over paths and counting them. Hover each
count increment requires spawning a subshell. For a large number of paths,
this can eat away any performance benefits of using read_tree_values.

Since we only care whether the count is greater than one, detect that
and break out of the loop early to re-introduce the performance
improvement.