sys-kernel/linux-firmware: check each command in pipeline manually

We cannot use Bash's pipefail option because grep can return exit status 1
to indicate that no line was selected which isn't an error.

Fixes: 9bf0896d9 ("sys-kernel/linux-firmware: use copy-firmware.sh to install firmwares")
Closes: https://bugs.gentoo.org/754960
Package-Manager: Portage-3.0.9, Repoman-3.0.2
Signed-off-by: Thomas Deutschmann <whissi@gentoo.org>

1 files changed, 9 insertions, 2 deletions

diff --git a/sys-kernel/linux-firmware/linux-firmware-99999999.ebuild b/sys-kernel/linux-firmware/linux-firmware-99999999.ebuild
index bc7bc76e3b09..01b85b27a4f0 100644
--- a/sys-kernel/linux-firmware/linux-firmware-99999999.ebuild
+++ b/sys-kernel/linux-firmware/linux-firmware-99999999.ebuild
@@ -276,12 +276,19 @@ src_install() {
 			[[ -s "${files_to_keep}" ]] || die "grep failed, empty config file?"
 
 			einfo "Applying USE=savedconfig; Removing all files not listed in config ..."
-			set -o pipefail
 			find ! -type d -printf "%P\n" \
 				| grep -Fvx -f "${files_to_keep}" \
 				| xargs -d '\n' --no-run-if-empty rm -v
 
-			[[ ${?} -ne 0 ]] && die "Failed to remove files not listed in config"
+			if [[ ${PIPESTATUS[0]} -ne 0 ]]; then
+				die "Find failed to print installed files"
+			elif [[ ${PIPESTATUS[1]} -eq 2 ]]; then
+				# grep returns exit status 1 if no lines were selected
+				# which is the case when we want to keep all files
+				die "Grep failed to select files to keep"
+			elif [[ ${PIPESTATUS[2]} -ne 0 ]]; then
+				die "Failed to remove files not listed in config"
+			fi
 		fi
 	fi