Use local LibreOffice installer in system setup

.bin/Scripts/functions/setup.py

@@ -241,6 +241,36 @@ def install_firefox_extensions():
   run_program(cmd)
 
 
+def install_libreoffice(
+    quickstart=True, register_mso_types=True,
+    use_mso_formats=False, vcredist=False):
+  """Install LibreOffice using specified settings."""
+  cmd = [
+    r'{}\Installers\Extras\Office\LibreOffice.msi'.format(
+      global_vars['BaseDir']),
+    '/qn',
+    '/norestart',
+    'REBOOTYESNO=No',
+    'ISCHECKFORPRODUCTUPDATES=0',
+    'QUICKSTART={}'.format(1 if quickstart else 0),
+    'UI_LANGS=en_US',
+    'VC_REDIST={}'.format(1 if vcredist else 0),
+    ]
+  if register_mso_types:
+    cmd.append('REGISTER_ALL_MSO_TYPES=1')
+  else:
+    cmd.append('REGISTER_NO_MSO_TYPES=1')
+  xcu_file = r'{APPDATA}LibreOffice\4\user\registrymodifications.xcu'.format(
+    **global_vars)
+
+  # Set default save format
+  if use_mso_formats and not os.path.exists(xcu_file):
+    with open(xcu_file, 'w', encoding='utf-8', newline='\n') as f:
+      f.write(LIBREOFFICE_XCU_DATA)
+
+  # Install LibreOffice
+  run_program(cmd, check=True)
+
 def install_ninite_bundle(browsers_only=False, mse=False, libreoffice=False):
   """Run Ninite installer(s), returns list of Popen objects."""
   popen_objects = []

.bin/Scripts/new_system_setup.py

@@ -81,6 +81,14 @@ if __name__ == '__main__':
     install_vcredists()
     if answer_eset:
       install_eset_nod32_av(scan_pups=answer_pups)
+    if answer_libreoffice:
+      try_and_print(message='LibreOffice...',
+        function=install_libreoffice, cs='done',
+        quickstart=True,
+        register_mso_types=True,
+        use_mso_formats=True,
+        vcredist=False,
+        )
     result = try_and_print(
       message='Ninite bundle...',
       function=install_ninite_bundle, cs='Started',

.bin/Scripts/settings/setup.py

@@ -155,6 +155,15 @@ SETTINGS_EXPLORER_USER = {
     },
   }
 
+# LibreOffice
+LIBREOFFICE_XCU_DATA = '''<?xml version="1.0" encoding="UTF-8"?>
+<oor:items xmlns:oor="http://openoffice.org/2001/registry" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<item oor:path="/org.openoffice.Setup/Office/Factories/org.openoffice.Setup:Factory['com.sun.star.presentation.PresentationDocument']"><prop oor:name="ooSetupFactoryDefaultFilter" oor:op="fuse"><value>Impress MS PowerPoint 2007 XML</value></prop></item>
+<item oor:path="/org.openoffice.Setup/Office/Factories/org.openoffice.Setup:Factory['com.sun.star.sheet.SpreadsheetDocument']"><prop oor:name="ooSetupFactoryDefaultFilter" oor:op="fuse"><value>Calc MS Excel 2007 XML</value></prop></item>
+<item oor:path="/org.openoffice.Setup/Office/Factories/org.openoffice.Setup:Factory['com.sun.star.text.TextDocument']"><prop oor:name="ooSetupFactoryDefaultFilter" oor:op="fuse"><value>MS Word 2007 XML</value></prop></item>
+</oor:items>
+'''
+
 # Registry
 SETTINGS_REGBACK = {
   # Enable RegBack