Under Linux, don't show the "Check for Update" action and correctly open the help file.

qt/base/app.py

@@ -183,7 +183,8 @@ class DupeGuru(DupeGuruBase, QObject):
         self.directories_dialog.show()
     
     def show_help(self):
-        url = QUrl.fromLocalFile(op.abspath('help/intro.htm'))
+        base_path = platform.HELP_PATH.format(self.EDITION)
+        url = QUrl.fromLocalFile(op.abspath(op.join(base_path, 'intro.htm')))
         QDesktopServices.openUrl(url)
     
     def show_preferences(self):

qt/base/main_window.py

@@ -6,6 +6,8 @@
 # which should be included with this package. The terms are also available at 
 # http://www.hardcoded.net/licenses/hs_license
 
+import sys
+
 from PyQt4.QtCore import Qt, QCoreApplication, QProcess, SIGNAL, QUrl
 from PyQt4.QtGui import (QMainWindow, QMenu, QPixmap, QIcon, QToolButton, QLabel, QHeaderView,
     QMessageBox, QInputDialog, QLineEdit, QDesktopServices)
@@ -85,6 +87,10 @@ class MainWindow(QMainWindow, Ui_MainWindow):
         
         self.statusLabel = QLabel(self)
         self.statusbar.addPermanentWidget(self.statusLabel, 1)
+        
+        # Linux setup
+        if sys.platform == 'linux2':
+            self.actionCheckForUpdate.setVisible(False) # This only works on Windows
     
     #--- Private
     def _confirm(self, title, msg, default_button=QMessageBox.Yes):

qt/base/platform_lnx.py

@@ -7,4 +7,5 @@
 # which should be included with this package. The terms are also available at 
 # http://www.hardcoded.net/licenses/hs_license
 
-INITIAL_FOLDER_IN_DIALOGS = u'/'
+INITIAL_FOLDER_IN_DIALOGS = u'/'
+HELP_PATH = '/usr/local/share/dupeguru_{0}/help'

qt/base/platform_osx.py

@@ -9,4 +9,5 @@
 
 # dummy unit to allow the app to run under OSX during development
 
-INITIAL_FOLDER_IN_DIALOGS = u'/'
+INITIAL_FOLDER_IN_DIALOGS = u'/'
+HELP_PATH = ''

qt/base/platform_win.py

@@ -7,4 +7,5 @@
 # which should be included with this package. The terms are also available at 
 # http://www.hardcoded.net/licenses/hs_license
 
-INITIAL_FOLDER_IN_DIALOGS = u'C:\\'
+INITIAL_FOLDER_IN_DIALOGS = u'C:\\'
+HELP_PATH = 'help'