From cdf7ad38b652613ed91775b859aa6453590b7ea2 Mon Sep 17 00:00:00 2001
From: Norbert Lange <nolange79@gmail.com>
Date: Wed, 8 Apr 2020 23:59:13 +0200
Subject: [PATCH] allow removal of initrd services

---
 meson.build       |  8 +++++++-
 meson_options.txt |  2 ++
 units/meson.build | 20 ++++++++++----------
 3 files changed, 19 insertions(+), 11 deletions(-)

diff --git a/meson.build b/meson.build
index e9eb7f9569..121148f8dd 100644
--- a/meson.build
+++ b/meson.build
@@ -90,6 +90,10 @@ sysvrcnd_path = get_option('sysvrcnd-path')
 conf.set10('HAVE_SYSV_COMPAT', sysvinit_path != '' and sysvrcnd_path != '',
            description : 'SysV init scripts and rcN.d links are supported')
 
+if get_option('hibernate') and not get_option('initrd')
+        error('hibernate depends on initrd')
+endif
+
 conf.set10('BUMP_PROC_SYS_FS_FILE_MAX', get_option('bump-proc-sys-fs-file-max'))
 conf.set10('BUMP_PROC_SYS_FS_NR_OPEN',  get_option('bump-proc-sys-fs-nr-open'))
 conf.set('HIGH_RLIMIT_NOFILE',          512*1024)
@@ -1419,6 +1423,7 @@ foreach term : ['utmp',
                 'smack',
                 'gshadow',
                 'idn',
+                'initrd',
                 'nss-myhostname',
                 'nss-systemd']
         have = get_option(term)
@@ -2766,7 +2771,7 @@ executable(
         include_directories : includes,
         link_with : [libshared],
         install_rpath : rootlibexecdir,
-        install : true,
+        install : conf.get('ENABLE_INITRD') == 1,
         install_dir : rootlibexecdir)
 
 executable(
@@ -3539,6 +3544,7 @@ foreach tuple : [
         ['openssl'],
         ['libcurl'],
         ['idn'],
+        ['initrd'],
         ['libidn2'],
         ['libidn'],
         ['libiptc'],
diff --git a/meson_options.txt b/meson_options.txt
index 0229179c99..e9fff1660c 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -35,6 +35,8 @@ option('telinit-path', type : 'string', value : '/lib/sysvinit/telinit',
        description : 'path to telinit')
 option('rc-local', type : 'string',
        value : '/etc/rc.local')
+option('initrd', type: 'boolean',
+       description : 'install services for use when running systemd in initrd')
 
 option('quotaon-path', type : 'string', description : 'path to quotaon')
 option('quotacheck-path', type : 'string', description : 'path to quotacheck')
diff --git a/units/meson.build b/units/meson.build
index ba3abc29ea..a0677196de 100644
--- a/units/meson.build
+++ b/units/meson.build
@@ -24,15 +24,15 @@ units = [
         ['hibernate.target',                    'ENABLE_HIBERNATE'],
         ['hybrid-sleep.target',                 'ENABLE_HIBERNATE'],
         ['suspend-then-hibernate.target',       'ENABLE_HIBERNATE'],
-        ['initrd-cleanup.service',              ''],
-        ['initrd-fs.target',                    ''],
-        ['initrd-parse-etc.service',            ''],
-        ['initrd-root-device.target',           ''],
-        ['initrd-root-fs.target',               ''],
-        ['initrd-switch-root.service',          ''],
-        ['initrd-switch-root.target',           ''],
-        ['initrd-udevadm-cleanup-db.service',   ''],
-        ['initrd.target',                       ''],
+        ['initrd-cleanup.service',              'ENABLE_INITRD'],
+        ['initrd-fs.target',                    'ENABLE_INITRD'],
+        ['initrd-parse-etc.service',            'ENABLE_INITRD'],
+        ['initrd-root-device.target',           'ENABLE_INITRD'],
+        ['initrd-root-fs.target',               'ENABLE_INITRD'],
+        ['initrd-switch-root.service',          'ENABLE_INITRD'],
+        ['initrd-switch-root.target',           'ENABLE_INITRD'],
+        ['initrd-udevadm-cleanup-db.service',   'ENABLE_INITRD'],
+        ['initrd.target',                       'ENABLE_INITRD'],
         ['kexec.target',                        ''],
         ['ldconfig.service',                    'ENABLE_LDCONFIG',
          'sysinit.target.wants/'],
@@ -225,7 +225,7 @@ in_units = [
         ['systemd-user-sessions.service',        'HAVE_PAM',
          'multi-user.target.wants/'],
         ['systemd-vconsole-setup.service',       'ENABLE_VCONSOLE'],
-        ['systemd-volatile-root.service',        ''],
+        ['systemd-volatile-root.service',        'ENABLE_INITRD'],
         ['systemd-repart.service',               'ENABLE_REPART',
          'sysinit.target.wants/ initrd-root-fs.target.wants/'],
         ['user-runtime-dir@.service',            ''],