Commit e4dbf706 authored Mar 10, 2026 by Joe Lawrence Committed by Josh Poimboeuf Mar 16, 2026

livepatch/klp-build: add grep-override function



Provide a custom grep() function to catch direct usage of the command.
Bare grep calls are generally incompatible with pipefail and
errexit behavior (where a failed match causes the script to exit).

Developers can still call grep via command grep if that behavior is
explicitly desired.

Acked-by: Song Liu <song@kernel.org>
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Link: https://patch.msgid.link/20260310203751.1479229-6-joe.lawrence@redhat.com


Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>

parent d36a7343

scripts/livepatch/klp-build

+7 −0

Original line number	Diff line number	Diff line
		@@ -56,6 +56,13 @@ grep0() {
		command grep "$@" \|\| true
		}

		# Because pipefail is enabled, the grep0 helper should be used instead of
		# grep, otherwise a failed match can propagate to an error.
		grep() {
		echo "error: $SCRIPT: use grep0 or 'command grep' instead of bare grep" >&2
		exit 1
		}

		status() {
		echo "$*"
		}