[gnome-tour/bilelmoussaoui/fixes] meson: use gnome.post_install

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

commit 9f8d12ff54788f621e5a4208042f80de16962bf5
Author: Bilal Elmoussaoui <belmouss redhat com>
Date:   Wed Jan 26 20:06:49 2022 +0100

    meson: use gnome.post_install

 build-aux/meson_post_install.py | 12 ------------
 meson.build                     | 14 +++++++++-----
 src/meson.build                 |  8 ++++----
 3 files changed, 13 insertions(+), 21 deletions(-)
---
diff --git a/meson.build b/meson.build
index 8bda926..439cba8 100644
--- a/meson.build
+++ b/meson.build
@@ -2,7 +2,7 @@ project('gnome-tour',
         'rust',
         version: '41.rc',
         license: 'GPL-3.0-or-later',
-       meson_version : '>= 0.50')
+       meson_version : '>= 0.59')
 
 i18n = import('i18n')
 gnome = import('gnome')
@@ -30,7 +30,7 @@ localedir = prefix / get_option('localedir')
 datadir = prefix / get_option('datadir')
 pkgdatadir = datadir / meson.project_name()
 iconsdir = datadir / 'icons'
-podir =meson.source_root () / 'po'
+podir =meson.project_source_root () / 'po'
 gettext_package = meson.project_name()
 
 
@@ -52,8 +52,8 @@ application_id = '@0@@1@'.format(base_id, profile)
 
 meson.add_dist_script(
   'build-aux/dist-vendor.sh',
-  meson.build_root() / 'meson-dist' / meson.project_name() + '-' + version,
-  meson.source_root()
+  meson.project_build_root() / 'meson-dist' / meson.project_name() + '-' + version,
+  meson.project_source_root()
 )
 
 if get_option('profile') == 'development'
@@ -66,4 +66,8 @@ subdir('data')
 subdir('po')
 subdir('src')
 
-meson.add_install_script('build-aux/meson_post_install.py')
+gnome.post_install(
+  gtk_update_icon_cache: true,
+  update_desktop_database: true,
+)
+
diff --git a/src/meson.build b/src/meson.build
index ef03e99..633bea1 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -13,8 +13,8 @@ config = configure_file(
 # Copy the config.rs output to the source directory.
 run_command(
   'cp',
-  meson.build_root() / 'src' / 'config.rs',
-  meson.source_root() /  'src' / 'config.rs',
+  meson.project_build_root() / 'src' / 'config.rs',
+  meson.project_source_root() /  'src' / 'config.rs',
   check: true
 )
 
@@ -47,8 +47,8 @@ custom_target(
   depends: resources,
   command: [
     cargo_script,
-    meson.build_root(),
-    meson.source_root(),
+    meson.project_build_root(),
+    meson.project_source_root(),
     '@OUTPUT@',
     profile,
     meson.project_name(),