+ # Helper methods for using the MSVC registry settings
+
+ def find_exe(self, exe):
+ """Return path to an MSVC executable program.
+
+ Tries to find the program in several places: first, one of the
+ MSVC program search paths from the registry; next, the directories
+ in the PATH environment variable. If any of those work, return an
+ absolute path that is known to exist. If none of them work, just
+ return the original program name, 'exe'.
+ """
+
+ for p in self.__paths:
+ fn = os.path.join(os.path.abspath(p), exe)
+ if os.path.isfile(fn):
+ return fn
+
+ # didn't find it; try existing path
+ for p in string.split(os.environ['Path'],';'):
+ fn = os.path.join(os.path.abspath(p),exe)
+ if os.path.isfile(fn):
+ return fn
+
+ return exe
+
+ def get_msvc_paths(self, path, platform='x86'):
+ """Get a list of devstudio directories (include, lib or path).
+
+ Return a list of strings. The list will be empty if unable to
+ access the registry or appropriate registry keys not found.
+ """
+
+ if not _can_read_reg:
+ return []
+
+ path = path + " dirs"
+ if self.__version >= 7:
+ key = (r"%s\%0.1f\VC\VC_OBJECTS_PLATFORM_INFO\Win32\Directories"
+ % (self.__root, self.__version))
+ else:
+ key = (r"%s\6.0\Build System\Components\Platforms"
+ r"\Win32 (%s)\Directories" % (self.__root, platform))
+
+ for base in HKEYS:
+ d = read_values(base, key)
+ if d:
+ if self.__version >= 7:
+ return string.split(self.__macros.sub(d[path]), ";")
+ else:
+ return string.split(d[path], ";")
+ return []
+
+ def set_path_env_var(self, name):
+ """Set environment variable 'name' to an MSVC path type value.
+
+ This is equivalent to a SET command prior to execution of spawned
+ commands.
+ """
+
+ if name == "lib":
+ p = self.get_msvc_paths("library")
+ else:
+ p = self.get_msvc_paths(name)
+ if p:
+ os.environ[name] = string.join(p, ';')
+