data: If we're using snap mode, configure frontend to use lsi-exec

This will ensure that the settings UI will always work, which will
somewhat perversely use lsi-exec through the config that it sets to
launch itself to set the config of lsi-exec..

This will allow us to actually expose lsi-settings as a usable thing
within the snap, where it is currently omitted. If we're not using snapd
mode, we'll just keep the file how it used to look.

Signed-off-by: Ikey Doherty <ikey@solus-project.com>

data/lsi-settings.desktop.in

@@ -1,7 +1,7 @@
 [Desktop Entry]
 Name=Linux Steam Integration
 Comment=Application for managing Steam integration settings
-Exec=lsi-settings
+Exec=@LSI_SETTINGS@
 Icon=steam
 Terminal=false
 Type=Application

data/meson.build

@@ -2,8 +2,16 @@ appsdir = join_paths(datadir, 'applications')
 
 # If frontend is enabled, install lsi-settings.desktop
 if with_frontend == true
-    install_data(
-        'lsi-settings.desktop',
+    data_conf = configuration_data()
+    if with_snap_support == true
+        data_conf.set('LSI_SETTINGS', 'linux-steam-integration.exec $SNAP/bin/linux-steam-integration.settings')
+    else
+        data_conf.set('LSI_SETTINGS', 'lsi-settings')
+    endif
+    configure_file(
+        input: 'lsi-settings.desktop.in',
+        output: 'lsi-settings.desktop',
+        configuration: data_conf,
         install_dir: appsdir,
     )
 endif

src/frontend/meson.build

@@ -6,8 +6,13 @@ if with_frontend == true
         'main-window.c',
     ]
 
+    frontend_name = 'lsi-settings'
+    if with_snap_support == true
+        frontend_name = 'linux-steam-integration.settings'
+    endif
+
     frontend = executable(
-        'lsi-settings',
+        frontend_name,
         sources: frontend_sources + nica_sources,
         include_directories: nica_includes,
         dependencies: [

src/shim/meson.build

@@ -15,6 +15,12 @@ if shim_behaviour != 'none'
         'lsi-exec.c',
     ]
 
+    exec_name = 'lsi-exec'
+    frontend_name = 'lsi-settings'
+    if with_snap_support == true
+        exec_name = 'linux-steam-integration.exec'
+    endif
+
     shim = executable(
         shim_target_name,
         sources: shim_sources + nica_sources,
@@ -26,7 +32,7 @@ if shim_behaviour != 'none'
     )
 
     lsi_exec = executable(
-        'lsi-exec',
+        exec_name,
         sources: exec_sources + nica_sources,
         include_directories: nica_includes,
         dependencies: [