Merge branch 'master' into lilypond/translation

[lilypond.git] / scripts / convert-ly.py

diff --git a/scripts/convert-ly.py b/scripts/convert-ly.py
index cffd859ff72ef74900f01579fb3efdbc6bc6c66a..fd4dc3b8d8affc03d968c79011efc51c8466cbce 100644 (file)
--- a/scripts/convert-ly.py
+++ b/scripts/convert-ly.py
@@ -1,14 +1,25 @@
 #!@TARGET_PYTHON@
-#
+
 # convert-ly.py -- Update old LilyPond input files (fix name?)
+# converting rules are found in python/convertrules.py
+
+# This file is part of LilyPond, the GNU music typesetter.
 #
-# source file of the GNU LilyPond music typesetter
-#
-# (c) 1998--2009  Han-Wen Nienhuys <hanwen@xs4all.nl>
+# Copyright (C) 1998--2010  Han-Wen Nienhuys <hanwen@xs4all.nl>
 #                 Jan Nieuwenhuizen <janneke@gnu.org>
 #
-# converting rules are found in python/convertrules.py
+# LilyPond is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# LilyPond is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
 #
+# You should have received a copy of the GNU General Public License
+# along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 
 import os
 import sys
@@ -67,7 +78,7 @@ def warranty ():
 
 %s
 %s
-''' % ( _ ('Copyright (c) %s by') % '2001--2009',
+''' % ( _ ('Copyright (c) %s by') % '2001--2010',
         ' '.join (authors),
         _ ('Distributed under terms of the GNU General Public License.'),
         _ ('It comes with NO WARRANTY.')))
@@ -193,12 +204,16 @@ def guess_lilypond_version (input):
     else:
         return ''
 
-class FatalConversionError:
+class FatalConversionError (Exception):
     pass
 
-class UnknownVersion:
+class UnknownVersion (Exception):
     pass
 
+class InvalidVersion (Exception):
+    def __init__ (self, version):
+      self.version = version
+
 def do_one_file (infile_name):
     ly.stderr_write (_ ("Processing `%s\'... ") % infile_name)
     sys.stderr.write ('\n')
@@ -225,6 +240,9 @@ def do_one_file (infile_name):
     else:
         to_version = latest_version ()
 
+    if len (from_version) != 3:
+        raise InvalidVersion (".".join ([str(n) for n in from_version]))
+
 
     (last, result) = do_conversion (input, from_version, to_version)
 
@@ -293,14 +311,21 @@ def main ():
         if f == '-':
             f = ''
         elif not os.path.isfile (f):
-            error (_ ("cannot open file: `%s'") % f)
+            error (_ ("%s: Unable to open file") % f)
             if len (files) == 1:
                 sys.exit (1)
             continue
         try:
             do_one_file (f)
         except UnknownVersion:
-            error (_ ("cannot determine version for `%s'.  Skipping") % f)
+            error (_ ("%s: Unable to determine version.  Skipping") % f)
+        except InvalidVersion:
+            # Compat code for 2.x and 3.0 syntax ("except .. as v" doesn't 
+            # work in python 2.4!):
+            t, v, b = sys.exc_info ()
+            error (_ ("%s: Invalid version string `%s' \n"
+                      "Valid version strings consist of three numbers, "
+                      "separated by dots, e.g. `2.8.12'") % (f, v.version) )
 
     sys.stderr.write ('\n')