+def find_lyx2lyx(progloc, path):
+ " Find a usable version of the lyx2lyx script. "
+ # first we will see if the script is roughly where we are
+ # i.e., we will assume we are in $SOMEDIR/scripts and look
+ # for $SOMEDIR/lyx2lyx/lyx2lyx.
+ ourpath = os.path.dirname(abspath(progloc))
+ (upone, discard) = os.path.split(ourpath)
+ tryit = os.path.join(upone, "lyx2lyx", "lyx2lyx")
+ if os.access(tryit, os.X_OK):
+ return tryit
+
+ # now we will try to query LyX itself to find the path.
+ extlist = ['']
+ if "PATHEXT" in os.environ:
+ extlist = extlist + os.environ["PATHEXT"].split(os.pathsep)
+ lyx_exe, full_path = find_exe(["lyxc", "lyx"], extlist, path)
+ if lyx_exe == None:
+ error('Cannot find the LyX executable in the path.')
+ cmd_status, cmd_stdout = run_cmd("%s -version 2>&1" % lyx_exe)
+ if cmd_status != None:
+ error('Cannot query LyX about the lyx2lyx script.')
+ re_msvc = re.compile(r'^(\s*)(Host type:)(\s+)(win32)$')
+ re_sysdir = re.compile(r'^(\s*)(LyX files dir:)(\s+)(\S+)$')
+ lines = cmd_stdout.splitlines()
+ for line in lines:
+ match = re_msvc.match(line)
+ if match:
+ # The LyX executable was built with MSVC, so the
+ # "LyX files dir:" line is unusable
+ basedir = os.path.dirname(os.path.dirname(full_path))
+ tryit = os.path.join(basedir, 'Resources', 'lyx2lyx', 'lyx2lyx')
+ break
+ match = re_sysdir.match(line)
+ if match:
+ tryit = os.path.join(match.group(4), 'lyx2lyx', 'lyx2lyx')
+ break
+
+ if not os.access(tryit, os.X_OK):
+ error('Unable to find the lyx2lyx script.')
+ return tryit
+
+