Installer: Write out configuration to json file

JSON file is $INSTDIR/Packages/installation_configuration.json

The following data is saved:
/Installation/User <string> (either "all" or "current")
/Installation/WithHardware <number> (either 1 or 0)

Added file to repo, such that it is listed in the files that are part
of the installation/uninstallation

Author: MichaelHuth

.pre-commit-config.yaml

@@ -4,6 +4,7 @@ exclude: |
          (?x) # verbose re
          ( # start alternations
            # not our code
+           ^Packages/installation_configuration.json|
            ^Packages/MIES/IPA_Control.ipf|
            ^tools/installer/nsis|
            ^tools/installer/Shelllink|

Packages/installation_configuration.json

@@ -837,6 +837,25 @@ SkipASLRSetup:
         SetRegView default
       ${EndIf}
 SkipITCSetup:
+; Write out installed configuration
+  FileOpen $FILEHANDLE "$INSTDIR\Packages\installation_configuration.json" w
+  FileWrite $FILEHANDLE '{$\n'
+  FileWrite $FILEHANDLE '$\t"Installation" : {$\n'
+  IntCmp $ALLUSER 1 ConfigWriteUserAll
+    FileWrite $FILEHANDLE '$\t$\t"User" : "current",$\n'
+    Goto ConfigWriteUserEnd
+ConfigWriteUserAll:
+    FileWrite $FILEHANDLE '$\t$\t"User" : "all",$\n'
+ConfigWriteUserEnd:
+  IntCmp $XOPINST 1 ConfigWriteWithHardwareYes
+  FileWrite $FILEHANDLE '$\t$\t"WithHardware" : 0$\n'
+  Goto ConfigWriteWithHardwareEnd
+ConfigWriteWithHardwareYes:
+  FileWrite $FILEHANDLE '$\t$\t"WithHardware" : 1$\n'
+ConfigWriteWithHardwareEnd:
+  FileWrite $FILEHANDLE '$\t}$\n'
+  FileWrite $FILEHANDLE '}'
+  FileClose $FILEHANDLE
 
 SectionEnd