nixpkgs/pkgs/os-specific/linux/firmware/fwupd/add-option-for-installation-sysconfdir.patch

From 2fe9625cc6dec10531482a3947ef75009eb21489 Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Tue, 30 Oct 2018 22:26:30 +0100
Subject: [PATCH] build: Add option for installation sysconfdir

On NixOS, sysconfdir is read-only by default, and packages are not supposed to
install files there. Instead, NixOS has a concept of modules that declaratively
describe the system configuration.

We still want to install the config files and certificates to fwupd prefix,
so that the modules can use them as they see fit, but at the same time, we
cannot set sysconfdir=${prefix}/etc because the daemon needs to read the
configuration from the directory created by the module.

With autotools, we could easily solve this by passing a the sysconfdir inside
prefix only to `make install`, but Meson does not support anything like that.
Until we manage to convince Meson to support install flags, we need to create
our own install flag.
---
 data/meson.build            | 4 ++--
 data/pki/meson.build        | 8 ++++----
 data/remotes.d/meson.build  | 6 +++---
 meson.build                 | 6 ++++++
 meson_options.txt           | 1 +
 plugins/redfish/meson.build | 2 +-
 plugins/uefi/meson.build    | 2 +-
 7 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/data/meson.build b/data/meson.build
index 8dd2ac9ad..d4ad1cbc1 100644
--- a/data/meson.build
+++ b/data/meson.build
@@ -9,7 +9,7 @@ if get_option('tests') and get_option('daemon')
 endif
 
 install_data(['daemon.conf'],
-  install_dir : join_paths(sysconfdir, 'fwupd')
+  install_dir : join_paths(sysconfdir_install, 'fwupd')
 )
 
 install_data(['org.freedesktop.fwupd.metainfo.xml'],
@@ -17,7 +17,7 @@ install_data(['org.freedesktop.fwupd.metainfo.xml'],
 )
 
 install_data(['org.freedesktop.fwupd.conf'],
-  install_dir : join_paths(sysconfdir, 'dbus-1', 'system.d')
+  install_dir : join_paths(sysconfdir_install, 'dbus-1', 'system.d')
 )
 
 install_data(['metadata.xml'],
diff --git a/data/pki/meson.build b/data/pki/meson.build
index eefcc9142..dc801fa18 100644
--- a/data/pki/meson.build
+++ b/data/pki/meson.build
@@ -4,14 +4,14 @@ if get_option('gpg')
       'GPG-KEY-Linux-Foundation-Firmware',
       'GPG-KEY-Linux-Vendor-Firmware-Service',
     ],
-    install_dir : join_paths(sysconfdir, 'pki', 'fwupd')
+    install_dir : join_paths(sysconfdir_install, 'pki', 'fwupd')
   )
 
   install_data([
       'GPG-KEY-Linux-Foundation-Metadata',
       'GPG-KEY-Linux-Vendor-Firmware-Service',
     ],
-    install_dir : join_paths(sysconfdir, 'pki', 'fwupd-metadata')
+    install_dir : join_paths(sysconfdir_install, 'pki', 'fwupd-metadata')
   )
 endif
 
@@ -19,12 +19,12 @@ if get_option('pkcs7')
   install_data([
       'LVFS-CA.pem',
     ],
-    install_dir : join_paths(sysconfdir, 'pki', 'fwupd')
+    install_dir : join_paths(sysconfdir_install, 'pki', 'fwupd')
   )
   install_data([
       'LVFS-CA.pem',
     ],
-    install_dir : join_paths(sysconfdir, 'pki', 'fwupd-metadata')
+    install_dir : join_paths(sysconfdir_install, 'pki', 'fwupd-metadata')
   )
 endif
 
diff --git a/data/remotes.d/meson.build b/data/remotes.d/meson.build
index 824291fc5..d0599a00a 100644
--- a/data/remotes.d/meson.build
+++ b/data/remotes.d/meson.build
@@ -3,7 +3,7 @@ if get_option('daemon') and get_option('lvfs')
       'lvfs.conf',
       'lvfs-testing.conf',
     ],
-    install_dir : join_paths(sysconfdir, 'fwupd', 'remotes.d')
+    install_dir : join_paths(sysconfdir_install, 'fwupd', 'remotes.d')
   )
   i18n.merge_file(
     input: 'lvfs.metainfo.xml',
@@ -37,12 +37,12 @@ configure_file(
   output : 'fwupd.conf',
   configuration : con2,
   install: true,
-  install_dir: join_paths(sysconfdir, 'fwupd', 'remotes.d'),
+  install_dir: join_paths(sysconfdir_install, 'fwupd', 'remotes.d'),
 )
 configure_file(
   input : 'vendor.conf',
   output : 'vendor.conf',
   configuration : con2,
   install: true,
-  install_dir: join_paths(sysconfdir, 'fwupd', 'remotes.d'),
+  install_dir: join_paths(sysconfdir_install, 'fwupd', 'remotes.d'),
 )
diff --git a/meson.build b/meson.build
index 737841f1a..23bd7a2e3 100644
--- a/meson.build
+++ b/meson.build
@@ -144,6 +144,12 @@ localstatedir = join_paths(prefix, get_option('localstatedir'))
 mandir = join_paths(prefix, get_option('mandir'))
 localedir = join_paths(prefix, get_option('localedir'))
 
+if get_option('sysconfdir_install') != ''
+  sysconfdir_install = join_paths(prefix, get_option('sysconfdir_install'))
+else
+  sysconfdir_install = sysconfdir
+endif
+
 gio = dependency('gio-2.0', version : '>= 2.45.8')
 if gio.version().version_compare ('>= 2.55.0')
   conf.set('HAVE_GIO_2_55_0', '1')
diff --git a/meson_options.txt b/meson_options.txt
index 23ef8cdb8..db8f93b6c 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -17,6 +17,7 @@ option('plugin_uefi', type : 'boolean', value : true, description : 'enable UEFI
 option('plugin_nvme', type : 'boolean', value : true, description : 'enable NVMe support')
 option('systemd', type : 'boolean', value : true, description : 'enable systemd support')
 option('systemdunitdir', type: 'string', value: '', description: 'Directory for systemd units')
+option('sysconfdir_install', type: 'string', value: '', description: 'sysconfdir to use during installation')
 option('tests', type : 'boolean', value : true, description : 'enable tests')
 option('udevdir', type: 'string', value: '', description: 'Directory for udev rules')
 option('efi-cc', type : 'string', value : 'gcc', description : 'the compiler to use for EFI modules')
diff --git a/plugins/redfish/meson.build b/plugins/redfish/meson.build
index 288f614e4..90cfe6484 100644
--- a/plugins/redfish/meson.build
+++ b/plugins/redfish/meson.build
@@ -22,7 +22,7 @@ shared_module('fu_plugin_redfish',
 )
 
 install_data(['redfish.conf'],
-  install_dir:  join_paths(sysconfdir, 'fwupd')
+  install_dir:  join_paths(sysconfdir_install, 'fwupd')
 )
 
 if get_option('tests')
diff --git a/plugins/uefi/meson.build b/plugins/uefi/meson.build
index c037e1b30..a0e8cd3e6 100644
--- a/plugins/uefi/meson.build
+++ b/plugins/uefi/meson.build
@@ -69,7 +69,7 @@ executable(
 )
 
 install_data(['uefi.conf'],
-  install_dir:  join_paths(sysconfdir, 'fwupd')
+  install_dir:  join_paths(sysconfdir_install, 'fwupd')
 )
 
 if get_option('tests')