--- /dev/null
+from distutils.errors import DistutilsSetupError
+from setuptools import Command
+import sys
+
+class scriptsetup(Command):
+ action = (sys.platform == "win32"
+ and "set up .pyscript association and PATHEXT variable to run scripts"
+ or "this does nothing on non-Windows platforms")
+
+ user_options = [
+ ('allusers', 'a',
+ 'make changes for all users of this Windows installation (requires Administrator privileges)'),
+ ]
+ boolean_options = ['allusers']
+
+ def initialize_options(self):
+ self.allusers = False
+
+ def finalize_options(self):
+ pass
+
+ def run(self):
+ if sys.platform != "win32":
+ print "\n'scriptsetup' isn't needed on non-Windows platforms."
+ else:
+ do_scriptsetup(self.allusers)
+
+
+def do_scriptsetup(allusers=False):
+ print "\nSetting up environment to run scripts for %s..." % (allusers and "all users" or "the current user")
+
+ from _winreg import HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE, HKEY_CLASSES_ROOT, \
+ REG_SZ, REG_EXPAND_SZ, KEY_QUERY_VALUE, KEY_SET_VALUE, \
+ OpenKey, CreateKey, QueryValueEx, SetValueEx, FlushKey, CloseKey
+
+ USER_ENV = "Environment"
+ try:
+ user_env = OpenKey(HKEY_CURRENT_USER, USER_ENV, 0, KEY_QUERY_VALUE)
+ except WindowsError, e:
+ raise DistutilsSetupError("I could not read the user environment from the registry.\n%r" % (e,))
+
+ SYSTEM_ENV = "SYSTEM\\CurrentControlSet\\Control\\Session Manager\\Environment"
+ try:
+ system_env = OpenKey(HKEY_LOCAL_MACHINE, SYSTEM_ENV, 0, KEY_QUERY_VALUE)
+ except WindowsError, e:
+ raise DistutilsSetupError("I could not read the system environment from the registry.\n%r" % (e,))
+
+
+ # HKEY_CLASSES_ROOT is a merged view that would only confuse us.
+ # <http://technet.microsoft.com/en-us/library/cc739822(WS.10).aspx>
+
+ USER_CLASSES = "SOFTWARE\\Classes"
+ try:
+ user_classes = OpenKey(HKEY_CURRENT_USER, USER_CLASSES, 0, KEY_QUERY_VALUE)
+ except WindowsError, e:
+ raise DistutilsSetupError("I could not read the user filetype associations from the registry.\n%r" % (e,))
+
+ SYSTEM_CLASSES = "SOFTWARE\\Classes"
+ try:
+ system_classes = OpenKey(HKEY_LOCAL_MACHINE, SYSTEM_CLASSES, 0, KEY_QUERY_VALUE)
+ except WindowsError, e:
+ raise DistutilsSetupError("I could not read the system filetype associations from the registry.\n%r" % (e,))
+
+
+ def query(key, subkey, what):
+ try:
+ (value, type) = QueryValueEx(key, subkey)
+ except WindowsError, e:
+ if e.winerror == 2: # not found
+ return None
+ raise DistutilsSetupError("I could not read %s from the registry.\n%r" % (what, e))
+
+ # It does not matter that we don't expand environment strings, in fact it's better not to.
+
+ if type != REG_SZ and type != REG_EXPAND_SZ:
+ raise DistutilsSetupError("I expected the registry entry for %s to have a string type (REG_SZ or REG_EXPAND_SZ), "
+ "and was flummoxed by it having type code %r." % (what, type))
+ return (value, type)
+
+
+ def open_and_query(key, path, subkey, what):
+ try:
+ read_key = OpenKey(key, path, 0, KEY_QUERY_VALUE)
+ except WindowsError, e:
+ if e.winerror == 2: # not found
+ return None
+ raise DistutilsSetupError("I could not read %s from the registry because I could not open "
+ "the parent key.\n%r" % (what, e))
+
+ try:
+ return query(read_key, subkey, what)
+ finally:
+ CloseKey(read_key)
+
+
+ def update(key_name_path, subkey, desired_value, desired_type, goal, what):
+ (key, name, path) = key_name_path
+
+ (old_value, old_type) = open_and_query(key, path, subkey, what) or (None, None)
+ if (old_value, old_type) == (desired_value, desired_type):
+ print "Already done: %s." % (goal,)
+ return False
+
+ try:
+ update_key = OpenKey(key, path, 0, KEY_SET_VALUE|KEY_QUERY_VALUE)
+ except WindowsError, e:
+ if e.winerror != 2:
+ raise DistutilsSetupError("I tried to %s, but was not successful because I could not open "
+ "the registry key %s\\%s for writing.\n%r"
+ % (goal, name, path, e))
+ try:
+ update_key = CreateKey(key, path)
+ except WindowsError, e:
+ raise DistutilsSetupError("I tried to %s, but was not successful because the registry key %s\\%s "
+ "did not exist, and I was unable to create it.\n%r"
+ % (goal, name, path, e))
+
+ (new_value, new_type) = (None, None)
+ try:
+ SetValueEx(update_key, subkey, 0, desired_type, desired_value)
+ except WindowsError, e:
+ raise DistutilsSetupError("I tried to %s, but was not able to set the subkey %r under %s\\%s to be %r.\n%r"
+ % (goal, subkey, name, path, desired_value))
+ else:
+ (new_value, new_type) = query(update_key, subkey, what) or (None, None)
+ finally:
+ FlushKey(update_key)
+ CloseKey(update_key)
+
+ if (new_value, new_type) != (desired_value, desired_type):
+ raise DistutilsSetupError("I tried to %s by setting the subkey %r under %s\\%s to be %r, "
+ "and the call to SetValueEx succeeded, but the value ended up as "
+ "%r instead (it was previously %r). Maybe the update was unexpectedly virtualized?"
+ % (goal, subkey, name, path, desired_value, new_value, old_value))
+
+ print "Done: %s." % (goal,)
+ return True
+
+
+ # Maintenance hazard: 'add_to_environment' and 'associate' use very similar, but not identical logic.
+
+ def add_to_environment(varname, addition, change_allusers):
+ changed = False
+ what = "the %s environment variable %s" % (change_allusers and "system" or "user", varname)
+ goal = "add %s to %s" % (addition, what)
+
+ system_valueandtype = query(system_env, varname, "the system environment variable %s" % (varname,))
+ user_valueandtype = query(user_env, varname, "the user environment variable %s" % (varname,))
+
+ if change_allusers:
+ (value, type) = system_valueandtype or (u'', REG_SZ)
+ key_name_path = (HKEY_LOCAL_MACHINE, "HKEY_LOCAL_MACHINE", SYSTEM_ENV)
+ else:
+ (value, type) = user_valueandtype or system_valueandtype or (u'', REG_SZ)
+ key_name_path = (HKEY_CURRENT_USER, "HKEY_CURRENT_USER", USER_ENV)
+
+ if addition.lower() in value.lower().split(u';'):
+ print "Already done: %s." % (goal,)
+ else:
+ changed |= update(key_name_path, varname, value + u';' + addition, type, goal, what)
+
+ if change_allusers:
+ # Also change any overriding environment entry for the current user.
+ (user_value, user_type) = user_valueandtype or (u'', REG_SZ)
+ split_value = user_value.lower().split(u';')
+
+ if not (addition.lower() in split_value or u'%'+varname.lower()+u'%' in split_value):
+ now_what = "the overriding user environment variable %s" % (varname,)
+ changed |= update((HKEY_CURRENT_USER, "HKEY_CURRENT_USER", USER_ENV),
+ varname, user_value + u';' + addition, user_type,
+ "add %s to %s" % (addition, now_what), now_what)
+
+ return changed
+
+
+ def associate(ext, target, change_allusers):
+ changed = False
+ what = "the %s association for %s" % (change_allusers and "system" or "user", ext)
+ goal = "associate the filetype %s with %s for %s" % (ext, target, change_allusers and "all users" or "the current user")
+
+ try:
+ if change_allusers:
+ target_key = OpenKey(HKEY_LOCAL_MACHINE, "%s\\%s" % (SYSTEM_CLASSES, target), 0, KEY_QUERY_VALUE)
+ else:
+ target_key = OpenKey(HKEY_CLASSES_ROOT, target, 0, KEY_QUERY_VALUE)
+ except WindowsError, e:
+ raise DistutilsSetupError("I was going to %s, but that won't work because the %s class does not exist in the registry, "
+ "as far as I can tell.\n%r" % (goal, target, e))
+ CloseKey(target_key)
+
+ system_key_name_path = (HKEY_LOCAL_MACHINE, "HKEY_LOCAL_MACHINE", "%s\\%s" % (SYSTEM_CLASSES, ext))
+ user_key_name_path = (HKEY_CURRENT_USER, "HKEY_CURRENT_USER", "%s\\%s" % (USER_CLASSES, ext))
+
+ system_valueandtype = open_and_query(system_classes, ext, "", "the system association for %s" % (ext,))
+ user_valueandtype = open_and_query(user_classes, ext, "", "the user association for %s" % (ext,))
+
+ if change_allusers:
+ (value, type) = system_valueandtype or (u'', REG_SZ)
+ key_name_path = system_key_name_path
+ else:
+ (value, type) = user_valueandtype or system_valueandtype or (u'', REG_SZ)
+ key_name_path = user_key_name_path
+
+ if value == target:
+ print "Already done: %s." % (goal,)
+ else:
+ changed |= update(key_name_path, "", unicode(target), REG_SZ, goal, what)
+
+ if change_allusers:
+ # Also change any overriding association for the current user.
+ (user_value, user_type) = user_valueandtype or (u'', REG_SZ)
+
+ if user_value != target:
+ changed |= update(user_key_name_path, "", unicode(target), REG_SZ,
+ "associate the filetype %s with %s for the current user " \
+ "(because the system association is overridden)" % (ext, target),
+ "the overriding user association for %s" % (ext,))
+
+ return changed
+
+
+ def broadcast_settingchange(change_allusers):
+ print "Broadcasting that the environment has changed, please wait..."
+
+ # <http://support.microsoft.com/kb/104011/en-us>
+ # <http://msdn.microsoft.com/en-us/library/ms644952(VS.85).aspx>
+ # LRESULT WINAPI SendMessageTimeoutA(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam,
+ # UINT fuFlags, UINT uTimeout, PDWORD_PTR lpdwResult);
+
+ try:
+ from ctypes import WINFUNCTYPE, POINTER, windll, addressof, c_char_p
+ from ctypes.wintypes import LONG, HWND, UINT, WPARAM, LPARAM, DWORD
+
+ SendMessageTimeout = WINFUNCTYPE(POINTER(LONG), HWND, UINT, WPARAM, LPARAM, UINT, UINT, POINTER(POINTER(DWORD))) \
+ (("SendMessageTimeoutA", windll.user32))
+ HWND_BROADCAST = 0xFFFF
+ WM_SETTINGCHANGE = 0x001A
+ SMTO_ABORTIFHUNG = 0x0002
+ SendMessageTimeout(HWND_BROADCAST, WM_SETTINGCHANGE, change_allusers and 1 or 0,
+ addressof(c_char_p("Environment")), SMTO_ABORTIFHUNG, 5000, None);
+ except Exception, e:
+ print "Warning: %r" % (e,)
+
+
+ changed_assoc = associate(".pyscript", "Python.File", allusers)
+
+ changed_env = False
+ try:
+ changed_env |= add_to_environment("PATHEXT", ".pyscript", allusers)
+ changed_env |= add_to_environment("PATHEXT", ".pyw", allusers)
+ finally:
+ CloseKey(user_env)
+ CloseKey(system_env)
+
+ if changed_assoc or changed_env:
+ broadcast_settingchange(allusers)
+
+ if changed_env:
+ print "\n" \
+ "Changes have been made to the persistent environment, but not\n" \
+ "in this Command Prompt. Running installed Python scripts will\n" \
+ "only work from new Command Prompts opened from now on.\n"
projects / tahoe-lafs / tahoe-lafs.git / commitdiff