Don't overwrite default themes during import

defaultthemes.txt

@@ -0,0 +1,16 @@
+Blue
+Debian
+Default
+Hacker
+Henge
+Indymediaclassic
+Indymediamodern
+Lcd
+Light
+Night
+Pixel
+Purple
+Rc3
+Solidaric
+Starlight
+Zen

tests.py

@@ -101,6 +101,7 @@ from content import removeLongWords
 from content import replaceContentDuplicates
 from content import removeTextFormatting
 from content import removeHtmlTag
+from theme import updateDefaultThemesList
 from theme import setCSSparam
 from linked_data_sig import generateJsonSignature
 from linked_data_sig import verifyJsonSignature
@@ -3721,6 +3722,7 @@ def testRoles() -> None:
 
 def runAllTests():
     print('Running tests...')
+    updateDefaultThemesList(os.getcwd())
     testFunctions()
     testRoles()
     testSkills()

theme.py

@@ -52,6 +52,13 @@ def importTheme(baseDir: str, filename: str) -> bool:
                 return False
     if not newThemeName:
         return False
+
+    # if the theme name in the default themes list?
+    defaultThemesFilename = baseDir + '/defaultthemes.txt'
+    if os.path.isfile(defaultThemesFilename):
+        if newThemeName.title() + '\n' in open(defaultThemesFilename).read():
+            newThemeName = newThemeName + '2'
+
     themeDir = baseDir + '/theme/' + newThemeName
     if not os.path.isdir(themeDir):
         os.mkdir(themeDir)
@@ -791,3 +798,16 @@ def setTheme(baseDir: str, name: str, domain: str,
     _setThemeInConfig(baseDir, name)
     _setClearCacheFlag(baseDir)
     return result
+
+
+def updateDefaultThemesList(baseDir: str) -> None:
+    """Recreates the list of default themes
+    """
+    themeNames = getThemesList(baseDir)
+    defaultThemesFilename = baseDir + '/defaultthemes.txt'
+    defaultThemesFile = open(defaultThemesFilename, "w+")
+    if not defaultThemesFile:
+        return
+    for name in themeNames:
+        defaultThemesFile.write(name + '\n')
+    defaultThemesFile.close()