Refactor windows installer script to accomodate further translation. Also split it up so it is easier to maintain and extend.

src/windows/uninstaller.nsi

@@ -0,0 +1,80 @@
+Section "un.$(remove_files)" ;"un.Remove files"
+  SectionIn RO
+  
+; Remove files and uninstaller  
+  Delete "$INSTDIR\qbittorrent.exe"
+  Delete "$INSTDIR\qt.conf"  
+  Delete "$INSTDIR\translations\qt_ar.qm"
+  Delete "$INSTDIR\translations\qt_bg.qm"
+  Delete "$INSTDIR\translations\qt_ca.qm"
+  Delete "$INSTDIR\translations\qt_cs.qm"
+  Delete "$INSTDIR\translations\qt_da.qm"
+  Delete "$INSTDIR\translations\qt_de.qm"
+  Delete "$INSTDIR\translations\qt_es.qm"
+  Delete "$INSTDIR\translations\qt_fa.qm"
+  Delete "$INSTDIR\translations\qt_fi.qm"
+  Delete "$INSTDIR\translations\qt_fr.qm"
+  Delete "$INSTDIR\translations\qt_gl.qm"
+  Delete "$INSTDIR\translations\qt_he.qm"
+  Delete "$INSTDIR\translations\qt_hu.qm"
+  Delete "$INSTDIR\translations\qt_it.qm"
+  Delete "$INSTDIR\translations\qt_ja.qm"
+  Delete "$INSTDIR\translations\qt_ko.qm"
+  Delete "$INSTDIR\translations\qt_lt.qm"
+  Delete "$INSTDIR\translations\qt_nl.qm"
+  Delete "$INSTDIR\translations\qt_pl.qm"
+  Delete "$INSTDIR\translations\qt_pt.qm"
+  Delete "$INSTDIR\translations\qt_pt_BR.qm"
+  Delete "$INSTDIR\translations\qt_ru.qm"
+  Delete "$INSTDIR\translations\qt_sk.qm"
+  Delete "$INSTDIR\translations\qt_sl.qm"
+  Delete "$INSTDIR\translations\qt_sv.qm"
+  Delete "$INSTDIR\translations\qt_tr.qm"
+  Delete "$INSTDIR\translations\qt_uk.qm"
+  Delete "$INSTDIR\translations\qt_zh_CN.qm"
+  Delete "$INSTDIR\translations\qt_zh_TW.qm"   
+  Delete "$INSTDIR\uninst.exe"
+  
+  ; Remove directories used  
+  RMDir /r "$INSTDIR\translations"
+  RMDir "$INSTDIR"
+SectionEnd
+
+Section "un.$(remove_shortcuts)" ;"un.Remove shortcuts"
+  SectionIn RO
+; Remove shortcuts, if any
+  RMDir /r "$SMPROGRAMS\qBittorrent"
+  Delete "$DESKTOP\qBittorrent.lnk"
+SectionEnd
+
+Section "un.$(remove_associations)" ;"un.Remove file associations"
+  SectionIn RO
+  DeleteRegKey HKEY_CLASSES_ROOT ".torrent"
+  DeleteRegKey HKEY_CLASSES_ROOT "qBittorrent"  
+  DeleteRegKey HKEY_CLASSES_ROOT "Magnet"
+  System::Call 'Shell32::SHChangeNotify(i ${SHCNE_ASSOCCHANGED}, i ${SHCNF_IDLIST}, i 0, i 0)'
+SectionEnd
+
+Section "un.$(remove_registry)" ;"un.Remove registry keys" 
+  SectionIn RO 
+  ; Remove registry keys
+  DeleteRegKey HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\qbittorrent"
+  DeleteRegKey HKLM "Software\qbittorrent"
+SectionEnd
+
+Section /o "un.$(remove_conf)" ;"un.Remove configuration files"
+  System::Call 'shell32::SHGetSpecialFolderPath(i $HWNDPARENT, t .r1, i ${CSIDL_APPDATA}, i0)i.r0'  
+  RMDir /r "$1\qBittorrent"
+  
+  System::Call 'shell32::SHGetSpecialFolderPath(i $HWNDPARENT, t .r1, i ${CSIDL_LOCALAPPDATA}, i0)i.r0'
+  RMDir /r "$1\qBittorrent\"
+SectionEnd
+
+;--------------------------------
+;Uninstaller Functions
+
+Function un.onInit
+
+  !insertmacro MUI_UNGETLANGUAGE
+  
+FunctionEnd