config: Use env instead of code generation

Code generation messes with the actual source directory and makes it
impossible to use tools like clippy without having generated the config
via meson.

data/icons/meson.build

@@ -1,19 +1,14 @@
 scalable_dir = 'hicolor' / 'scalable' / 'apps'
 
 install_data(
-  scalable_dir / 'org.gnome.Loupe.svg',
-  install_dir: iv_datadir / 'icons' / scalable_dir,
-)
-
-install_data(
-  scalable_dir / 'org.gnome.Loupe.Devel.svg',
-  install_dir: iv_datadir / 'icons' / scalable_dir,
+  scalable_dir / '@0@.svg'.format(app_id),
+  install_dir: datadir / 'icons' / scalable_dir,
 )
 
 symbolic_dir = 'hicolor' / 'symbolic' / 'apps'
 
 install_data(
   symbolic_dir / 'org.gnome.Loupe-symbolic.svg',
-  install_dir: iv_datadir / 'icons' / symbolic_dir,
-  rename: '@0@-symbolic.svg'.format(app_id)
-)
+  install_dir: datadir / 'icons' / symbolic_dir,
+  rename: '@0@-symbolic.svg'.format(app_id),
+)

data/meson.build

@@ -46,6 +46,10 @@ mime_types += [
   'image/jxl',
 ]
 
+conf = configuration_data()
+conf.set('APP_ID', app_id)
+conf.set('BIN_NAME', meson.project_name())
+conf.set('BINDIR', bindir)
 conf.set('MIME_TYPES', ';'.join(mime_types) + ';')
 
 desktop_file = i18n.merge_file(
@@ -58,22 +62,20 @@ desktop_file = i18n.merge_file(
   type: 'desktop',
   po_dir: '../po',
   install: true,
-  install_dir: iv_datadir / 'applications'
+  install_dir: datadir / 'applications',
 )
 
 configure_file(
-    input: 'org.gnome.Loupe.service.in',
-    output: '@0@.service'.format(app_id),
-    configuration: conf,
-    install: true,
-    install_dir: iv_datadir / 'dbus-1' / 'services'
+  input: 'org.gnome.Loupe.service.in',
+  output: '@0@.service'.format(app_id),
+  configuration: conf,
+  install: true,
+  install_dir: datadir / 'dbus-1' / 'services',
 )
 
 desktop_utils = find_program('desktop-file-validate', required: false)
 if desktop_utils.found()
-  test('Validate desktop file', desktop_utils,
-    args: [desktop_file]
-  )
+  test('Validate desktop file', desktop_utils, args: [desktop_file])
 endif
 
 appstream_file = i18n.merge_file(
@@ -85,16 +87,17 @@ appstream_file = i18n.merge_file(
   output: '@0@.metainfo.xml'.format(app_id),
   po_dir: '../po',
   install: true,
-  install_dir: iv_datadir / 'metainfo'
+  install_dir: datadir / 'metainfo',
 )
 
 # Validate Appdata
 appstreamcli = find_program('appstreamcli', required: false)
 if (appstreamcli.found())
-  test('Validate metainfo file',
+  test(
+    'Validate metainfo file',
     appstreamcli,
     args: ['validate', '--no-net', appstream_file],
-    workdir: meson.current_build_dir()
+    workdir: meson.current_build_dir(),
   )
 endif
 
@@ -109,17 +112,12 @@ configure_file(
   output: '@0@.gschema.xml'.format(app_id),
   configuration: gschema_conf,
   install: true,
-  install_dir: iv_datadir / 'glib-2.0' / 'schemas'
+  install_dir: datadir / 'glib-2.0' / 'schemas',
 )
 
 # Validate GSchema
 test(
-  'validate-gschema', glib_compile_schemas,
-  args: [
-    '--strict', '--dry-run', meson.current_source_dir()
-  ]
-)
-
-# Post install
-
-gnome.post_install()
+  'validate-gschema',
+  glib_compile_schemas,
+  args: ['--strict', '--dry-run', meson.current_source_dir()],
+)

data/org.gnome.Loupe.desktop.in.in

@@ -1,6 +1,6 @@
 [Desktop Entry]
 Name=Image Viewer
-Exec=loupe %U
+Exec=@BIN_NAME@ %U
 Icon=@APP_ID@
 DBusActivatable=true
 Terminal=false

data/org.gnome.Loupe.service.in

@@ -1,3 +1,3 @@
 [D-BUS Service]
 Name=@APP_ID@
-Exec=@bindir@/loupe --gapplication-service
+Exec=@BINDIR@/@BIN_NAME@ --gapplication-service