tree ed604ccf620ff970192d6fbdcf00fa1e5dfbc6ea
parent afde71894b1d7a73e0b2b54c1bd4a513474050a1
author ulfjack <ulfjack@google.com> 1572445391 -0700
committer Copybara-Service <copybara-worker@google.com> 1572445447 -0700

Guard include scanner against null grepIncludes

The grepIncludes artifact may be null if the owning rule doesn't have a
$grep_includes attribute (see CppHelper.getGrepIncludes). This seems to
be intentional. However, the remote include scanner requires that
grepIncludes is *not* null, so we need to safe-guard against it.

Unfortunately, this is brittle, because accidentally misspelling or
removing the attributes makes all grep operations fall back to the
built-in implementation.

PiperOrigin-RevId: 277499382