flatpak: Allow dual installation of app bundles

Part of https://gitlab.gnome.org/GNOME/Initiatives/issues/1.
Allows for the installation of development bundles alongside
stable versions.

Related to https://gitlab.gnome.org/GNOME/gnome-calendar/issues/285

data/appdata/meson.build

@@ -1,9 +1,13 @@
-info = 'org.gnome.Calendar.appdata.xml'
-
-i18n.merge_file(
-  info,
-  input: 'org.gnome.Calendar.appdata.xml.in',
-  output: info,
+appdata_conf = configuration_data()
+appdata_conf.set('appid', application_id)
+appdata = i18n.merge_file(
+  'appdata',
+  input: configure_file(
+    input: files('org.gnome.Calendar.appdata.xml.in.in'),
+    output: 'org.gnome.Calendar.appdata.xml.in',
+    configuration: appdata_conf
+  ),
+  output: '@0@.appdata.xml'.format(application_id),
   po_dir: po_dir,
   install: true,
   install_dir: join_paths(calendar_datadir, 'metainfo')

data/appdata/org.gnome.Calendar.appdata.xml.in.in

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!-- Copyright 2014 Igor Gnatenko <ignatenko@src.gnome.org> -->
 <component type="desktop">
-  <id>org.gnome.Calendar.desktop</id>
+  <id>@appid@</id>
   <metadata_license>CC0-1.0</metadata_license>
   <project_license>GPL-3.0-or-later</project_license>
   <name>Calendar</name>

data/icons/meson.build

@@ -1,4 +1,21 @@
-install_subdir(
-  'hicolor',
-  install_dir: join_paths(calendar_datadir, 'icons')
+symbolic_icondir = join_paths('hicolor', 'symbolic', 'apps')
+
+install_data(
+  join_paths(symbolic_icondir, 'org.gnome.Calendar-symbolic.svg'),
+  install_dir: join_paths(
+    calendar_datadir,
+    join_paths('icons', symbolic_icondir)
+  ),
+  rename: '@0@-symbolic.svg'.format(application_id)
+)
+
+icondir = join_paths('hicolor', 'scalable', 'apps')
+
+install_data(
+  join_paths(icondir, 'org.gnome.Calendar.svg'),
+  install_dir: join_paths(
+    calendar_datadir,
+    join_paths('icons', icondir)
+  ),
+  rename: '@0@.svg'.format(application_id)
 )

data/meson.build

@@ -18,22 +18,30 @@ enums_xml = gnome.mkenums(
 
 # Desktop files
 # Note: This name is registered in gcal-weather-service.c.
-desktop = 'org.gnome.Calendar.desktop'
-
-i18n.merge_file(
-      desktop,
-         type: 'desktop',
-        input: desktop + '.in',
-       output: desktop,
-       po_dir: po_dir,
-      install: true,
+desktop_conf = configuration_data()
+desktop_conf.set('icon', application_id)
+desktop = i18n.merge_file(
+  type: 'desktop',
+  input: configure_file(
+    input: files('org.gnome.Calendar.desktop.in.in'),
+    output: 'org.gnome.Calendar.desktop.in',
+    configuration: desktop_conf
+  ),
+  output: '@0@.desktop'.format(application_id),
+  po_dir: po_dir,
+  install: true,
   install_dir: join_paths(calendar_datadir, 'applications')
 )
 
 # GNOME Shell search provider
-install_data(
-  'org.gnome.Calendar.search-provider.ini',
-  install_dir: join_paths(calendar_datadir, 'gnome-shell', 'search-providers')
+search_provider_conf = configuration_data()
+search_provider_conf.set('appid', application_id)
+search_provider_conf.set('profile',  profile)
+configure_file(
+  configuration: search_provider_conf,
+  input: files('org.gnome.Calendar.search-provider.ini.in'),
+  install_dir: join_paths(calendar_datadir, 'gnome-shell', 'search-providers'),
+  output: '@0@.search-provider.ini'.format(application_id)
 )
 
 # GSettings schema
@@ -63,13 +71,13 @@ compiled_schemas = custom_target(
 
 # DBus service files
 service_conf = configuration_data()
+service_conf.set('appid', application_id)
 service_conf.set('bindir', calendar_bindir)
-
 service = 'org.gnome.Calendar.service'
 
 configure_file(
           input: service + '.in',
-         output: service,
+         output: '@0@.service'.format(application_id),
         install: true,
     install_dir: join_paths(calendar_datadir, 'dbus-1', 'services'),
   configuration: service_conf

data/org.gnome.Calendar.desktop.in.in

@@ -3,7 +3,7 @@ Name=Calendar
 Comment=Access and manage your calendars
 Exec=gnome-calendar
 # Translators: Do NOT translate or transliterate this text (this is an icon file name)!
-Icon=org.gnome.Calendar
+Icon=@icon@
 Terminal=false
 Type=Application
 StartupNotify=true

data/org.gnome.Calendar.search-provider.ini

@@ -1,6 +0,0 @@
-[Shell Search Provider]
-Icon=gnome-calendar
-DesktopId=org.gnome.Calendar.desktop
-BusName=org.gnome.Calendar
-ObjectPath=/org/gnome/Calendar/SearchProvider
-Version=2

data/org.gnome.Calendar.search-provider.ini.in

@@ -0,0 +1,6 @@
+[Shell Search Provider]
+Icon=gnome-calendar
+DesktopId=@appid@.desktop
+BusName=@appid@
+ObjectPath=/org/gnome/Calendar@profile@/SearchProvider
+Version=2

data/org.gnome.Calendar.service.in

@@ -1,3 +1,3 @@
 [D-BUS Service]
-Name=org.gnome.Calendar
+Name=@appid@
 Exec=@bindir@/gnome-calendar --gapplication-service