meson: add feature flag for growfs

growfs builds and installs binaries, docs, units, etc. Add a
feature flag to make it easier to avoid shipping it.

man/rules/meson.build

@@ -1161,7 +1161,7 @@ manpages = [
    'systemd-growfs@.service',
    'systemd-makefs',
    'systemd-mkswap@.service'],
-  ''],
+  'ENABLE_GROWFS'],
  ['systemd-measure', '1', [], 'ENABLE_MEASURE'],
  ['systemd-modules-load.service', '8', ['systemd-modules-load'], 'HAVE_KMOD'],
  ['systemd-mount', '1', ['systemd-umount'], ''],

man/systemd-makefs@.service.xml

@@ -3,7 +3,7 @@
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
-<refentry id="systemd-makefs_.service">
+<refentry id="systemd-makefs_.service" conditional="ENABLE_GROWFS">
 
   <refentryinfo>
     <title>systemd-makefs@.service</title>

meson.build

@@ -1795,6 +1795,7 @@ conf.set10('DEFAULT_MOUNTFSD_TRUSTED_DIRECTORIES', get_option('default-mountfsd-
 
 conf.set10('ENABLE_BATTERY_CHECK', get_option('battery-check').allowed())
 conf.set10('ENABLE_CLONESETUP', get_option('clonesetup').allowed())
+conf.set10('ENABLE_GROWFS', get_option('growfs').allowed())
 
 foreach tuple : [
                 ['analyze'],
@@ -3446,6 +3447,7 @@ foreach tuple : [
         ['efi'],
         ['environment.d'],
         ['firstboot'],
+        ['growfs'],
         ['hibernate'],
         ['homed'],
         ['hostnamed'],

meson_options.txt

@@ -181,6 +181,8 @@ option('environment-d', type : 'boolean',
        description : 'support for environment.d')
 option('firstboot', type : 'boolean',
        description : 'install systemd-firstboot')
+option('growfs', type : 'feature',
+       description : 'install systemd-growfs, systemd-makefs, and associated files')
 option('hibernate', type : 'boolean',
        description : 'support for hibernation')
 option('homed', type : 'feature', deprecated : { 'true' : 'enabled', 'false' : 'disabled' },

src/growfs/meson.build

@@ -1,5 +1,9 @@
 # SPDX-License-Identifier: LGPL-2.1-or-later
 
+if conf.get('ENABLE_GROWFS') != 1
+        subdir_done()
+endif
+
 executables += [
         libexec_template + {
                 'name' : 'systemd-growfs',

test/units/TEST-65-ANALYZE.sh

@@ -1143,9 +1143,9 @@ if test -f /sys/class/dmi/id/board_vendor && ! systemd-detect-virt --container ;
     systemd-analyze chid --json=pretty
 fi
 
-systemd-analyze condition --instance=tmp --unit=systemd-growfs@.service
-systemd-analyze verify --instance=tmp --man=no systemd-growfs@.service
-systemd-analyze security --instance=tmp systemd-growfs@.service
+systemd-analyze condition --instance=tmp --unit=user@.service
+systemd-analyze verify --instance=tmp --man=no user@.service
+systemd-analyze security --instance=tmp user@.service
 
 systemd-analyze has-tpm2 ||:
 if systemd-analyze has-tpm2 -q ; then

units/meson.build

@@ -389,8 +389,14 @@ units = [
         },
         { 'file' : 'systemd-fsck-root.service.in' },
         { 'file' : 'systemd-fsck@.service.in' },
-        { 'file' : 'systemd-growfs-root.service.in' },
-        { 'file' : 'systemd-growfs@.service.in' },
+        {
+          'file' : 'systemd-growfs-root.service.in',
+          'conditions' : ['ENABLE_GROWFS'],
+        },
+        {
+          'file' : 'systemd-growfs@.service.in',
+          'conditions' : ['ENABLE_GROWFS'],
+        },
         { 'file' : 'systemd-halt.service' },
         {
           'file' : 'systemd-hibernate-clear.service.in',