PortableInstaller: Add directory cleanup

win/misc/gajim-portable.nsi

@@ -2,6 +2,8 @@
 
 Unicode true
 !include "MUI2.nsh"
+!include "LogicLib.nsh"
+
 
 Name "Gajim"
 OutFile "Gajim-Portable.exe"
@@ -51,6 +53,7 @@ LangString NAME_Languages ${LANG_ENGLISH} "Languages"
 LangString NAME_SecLanguagesOther ${LANG_ENGLISH} "Other"
 LangString NAME_Themes ${LANG_ENGLISH} "Themes"
 LangString DESC_SecGajim ${LANG_ENGLISH} "Installs the main Gajim files."
+LangString INST_NotEmpty ${LANG_ENGLISH} "It looks like you already installed Gajim in this directory. A cleanup is necessary before installing. Your user data will not be touched. Cleanup now?"
 
 
 ; French
@@ -60,6 +63,7 @@ LangString NAME_Languages ${LANG_FRENCH} "Langues"
 LangString NAME_SecLanguagesOther ${LANG_FRENCH} "Autre"
 LangString NAME_Themes ${LANG_FRENCH} "Thèmes"
 LangString DESC_SecGajim ${LANG_FRENCH} "Installer les fichiers principaux de Gajim."
+LangString INST_NotEmpty ${LANG_FRENCH} "It looks like you already installed Gajim in this directory. A cleanup is necessary before installing. Your user data will not be touched. Cleanup now?"
 
 
 ; German
@@ -69,6 +73,7 @@ LangString NAME_Languages ${LANG_GERMAN} "Sprachen"
 LangString NAME_SecLanguagesOther ${LANG_GERMAN} "Sonstige"
 LangString NAME_Themes ${LANG_GERMAN} "Designs"
 LangString DESC_SecGajim ${LANG_GERMAN} "Installiert die Hauptdateien von Gajim."
+LangString INST_NotEmpty ${LANG_GERMAN} "Anscheinend ist Gajim bereits in diesem Verzeichnis installiert. Vor der Installation ist es notwendig das Verzeichnis aufzuräumen. Deine Benutzerdaten bleiben erhalten. Jetzt aufräumen?"
 
 
 ; Italian
@@ -78,6 +83,7 @@ LangString NAME_Languages ${LANG_ITALIAN} "Lingue"
 LangString NAME_SecLanguagesOther ${LANG_ITALIAN} "Altre"
 LangString NAME_Themes ${LANG_ITALIAN} "Temi"
 LangString DESC_SecGajim ${LANG_ITALIAN} "Installa i file principali di Gajim."
+LangString INST_NotEmpty ${LANG_ITALIAN} "It looks like you already installed Gajim in this directory. A cleanup is necessary before installing. Your user data will not be touched. Cleanup now?"
 
 
 ; Russian
@@ -87,6 +93,7 @@ LangString NAME_Languages ${LANG_RUSSIAN} "Языки"
 LangString NAME_SecLanguagesOther ${LANG_RUSSIAN} "Другое"
 LangString NAME_Themes ${LANG_RUSSIAN} "Темы"
 LangString DESC_SecGajim ${LANG_RUSSIAN} "Установка основных файлов Gajim."
+LangString INST_NotEmpty ${LANG_RUSSIAN} "It looks like you already installed Gajim in this directory. A cleanup is necessary before installing. Your user data will not be touched. Cleanup now?"
 
 
 ; Hebrew
@@ -96,11 +103,24 @@ LangString NAME_Languages ${LANG_HEBREW} "שפות"
 LangString NAME_SecLanguagesOther ${LANG_HEBREW} "אחרות"
 LangString NAME_Themes ${LANG_HEBREW} "ערכאות נושא"
 LangString DESC_SecGajim ${LANG_HEBREW} "מתקין קבצי Gajim עיקריים."
+LangString INST_NotEmpty ${LANG_HEBREW} "It looks like you already installed Gajim in this directory. A cleanup is necessary before installing. Your user data will not be touched. Cleanup now?"
 
 Section "Gajim" SecGajim
     SectionIn RO
 
     SetOutPath "$INSTDIR"
+
+    ${If} ${FileExists} "$InstDir\bin\Gajim.exe"
+        MessageBox MB_YESNO $(INST_NotEmpty) IDYES cleanup
+        Abort
+    cleanup:
+        RMDir /r "$InstDir\bin"
+        RMDir /r "$InstDir\etc"
+        RMDir /r "$InstDir\lib"
+        RMDir /r "$InstDir\share"
+        RMDir /r "$InstDir\ssl"
+    ${EndIf}
+
     File /r "${ARCH}\*.*"
 
     SetOutPath "$INSTDIR\bin"