mercurial-scm/hg: mercurial/util

merge: add registry look up bits to tool search

comparison

equal deleted inserted replaced

-:3c33032d8906
+:3c9dbb743d20
 return status == win32con.STILL_ACTIVE
 except pywintypes.error, details:
 return details[0] != winerror.ERROR_INVALID_PARAMETER
 return True
+def lookup_reg(key, valname=None, scope=None):
+''' Look up a key/value name in the Windows registry.
+valname: value name. If unspecified, the default value for the key
+is used.
+scope: optionally specify scope for registry lookup, this can be
+a sequence of scopes to look up in order. Default (CURRENT_USER,
+LOCAL_MACHINE).
+'''
+try:
+from _winreg import HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE, \
+QueryValueEx, OpenKey
+except ImportError:
+return None
+def query_val(scope, key):
+try:
+keyhandle = OpenKey(scope, key)
+return QueryValueEx(keyhandle, valname)[0]
+except EnvironmentError:
+return None
+if scope is None:
+scope = (HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE)
+elif not isinstance(scope, (list, tuple)):
+scope = (scope,)
+for s in scope:
+val = query_val(s, key, valname)
+if val is not None:
+return val
 def system_rcpath_win32():
 '''return default os-specific hgrc search path'''
 proc = win32api.GetCurrentProcess()
 try:
 # This will fail on windows < NT

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