From e8c6d93a1fe7ea255754bfb93fad8daad62a85ce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Tue, 18 Jan 2022 18:08:42 +0100
Subject: [PATCH 02/13] feat(kernel-install): do nothing when
 $KERNEL_INSTALL_INITRD_GENERATOR says so

dracut may be installed without being actually used. This is very common in
binary distros where a package may be pulled in through dependencies, even
though the user does not need it in a particular setup. KERNEL_INSTALL_INITRD_GENERATOR
is being added in systemd's kernel-install to select which of the possibly many
initrd generation mechanisms will be used.

For backwards compat, if it not set, continue as before. But if set to
something else, skip our kernel-install plugins.

(Cherry-picked commit f47bcdd7342ca0d46b889e712a1c7446e18434bc from PR#1825)
---
 install.d/50-dracut.install        | 9 ++++++++-
 install.d/51-dracut-rescue.install | 6 ++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/install.d/50-dracut.install b/install.d/50-dracut.install
index 441414ac..3f961b11 100755
--- a/install.d/50-dracut.install
+++ b/install.d/50-dracut.install
@@ -6,11 +6,17 @@ BOOT_DIR_ABS="$3"
 KERNEL_IMAGE="$4"
 
 # If KERNEL_INSTALL_MACHINE_ID is defined but empty, BOOT_DIR_ABS is a fake directory.
-# So, let's skip to create initrd.
+# In this case, do not create the initrd.
 if ! [[ ${KERNEL_INSTALL_MACHINE_ID-x} ]]; then
     exit 0
 fi
 
+# Skip this plugin if we're using a different generator. If nothing is specified,
+# assume we're wanted since we're installed.
+if [ "${KERNEL_INSTALL_INITRD_GENERATOR:-dracut}" != "dracut" ]; then
+    exit 0
+fi
+
 # Do not attempt to create initramfs if the supplied image is already a UKI
 if [[ "$KERNEL_INSTALL_IMAGE_TYPE" = "uki" ]]; then
     exit 0
@@ -38,6 +44,7 @@ elif [[ $KERNEL_INSTALL_LAYOUT == "bls" && -n $KERNEL_INSTALL_STAGING_AREA ]]; t
     else
         exit 0
     fi
+
 else
     # No layout information, use users --uefi/--no-uefi preference
     UEFI_OPTS=""
diff --git a/install.d/51-dracut-rescue.install b/install.d/51-dracut-rescue.install
index 9312e242..decee283 100755
--- a/install.d/51-dracut-rescue.install
+++ b/install.d/51-dracut-rescue.install
@@ -7,6 +7,12 @@ KERNEL_VERSION="$2"
 BOOT_DIR_ABS="${3%/*}/0-rescue"
 KERNEL_IMAGE="$4"
 
+# Skip this plugin if we're using a different generator. If nothing is specified,
+# assume we're wanted since we're installed.
+if [ "${KERNEL_INSTALL_INITRD_GENERATOR:-dracut}" != "dracut" ]; then
+    exit 0
+fi
+
 dropindirs_sort() {
     suffix=$1
     shift
-- 
2.47.1