From: david-sarah Date: Mon, 2 Aug 2010 07:21:29 +0000 (-0700) Subject: bundled zetuptoolz: add missing setuptools/command/scriptsetup.py X-Git-Tag: allmydata-tahoe-1.8.0b2~45 X-Git-Url: https://git.rkrishnan.org/components/%22news.html/frontends/about.html?a=commitdiff_plain;h=d112df80ff4b0265303570f392ff3c7b1751b409;p=tahoe-lafs%2Ftahoe-lafs.git bundled zetuptoolz: add missing setuptools/command/scriptsetup.py --- diff --git a/setuptools-0.6c16dev.egg/setuptools/command/scriptsetup.py b/setuptools-0.6c16dev.egg/setuptools/command/scriptsetup.py new file mode 100644 index 00000000..48e6b53f --- /dev/null +++ b/setuptools-0.6c16dev.egg/setuptools/command/scriptsetup.py @@ -0,0 +1,262 @@ +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. + # + + 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..." + + # + # + # 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"