3 # convert-ly.py -- Update old LilyPond input files (fix name?)
5 # source file of the GNU LilyPond music typesetter
7 # (c) 1998--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
8 # Jan Nieuwenhuizen <janneke@gnu.org>
10 # converting rules are found in python/convertrules.py
26 lilypond_version_re_str = '\\\\version *\"([0-9.]+)"'
27 lilypond_version_re = re.compile (lilypond_version_re_str)
31 _ ('''Update LilyPond input to newer version. By default, update from the
32 version taken from the \\version command, to the current LilyPond version.''')
35 $ convert-ly -e old.ly
36 $ convert-ly --from=2.3.28 --to=2.5.21 foobar.ly > foobar-new.ly
39 copyright = ('Jan Nieuwenhuizen <janneke@gnu.org>',
40 'Han-Wen Nienhuys <hanwen@xs4all.nl>')
42 program_name = os.path.basename (sys.argv[0])
43 program_version = '@TOPLEVEL_VERSION@'
45 error_file_write = ly.stderr_write
48 ly.stderr_write (program_name + ": " + _ ("warning: %s") % s + '\n')
51 ly.stderr_write (program_name + ": " + _ ("error: %s") % s + '\n')
53 def identify (port=sys.stderr):
54 ly.encoded_write (port, '%s (GNU LilyPond) %s\n' % (program_name, program_version))
58 ly.encoded_write (sys.stdout, '''
67 _ ("Distributed under terms of the GNU General Public License."),
68 _ ('It comes with NO WARRANTY.')))
71 def get_option_parser ():
72 p = ly.get_option_parser (usage=_ ("%s [OPTION]... FILE") % 'convert-ly',
73 description=help_summary,
74 add_help_option=False)
76 p.version="@TOPLEVEL_VERSION@"
77 p.add_option("--version",
79 help=_ ("show version number and exit"))
81 p.add_option("-h", "--help",
83 help=_ ("show this help and exit"))
85 p.add_option ('-f', '--from',
87 metavar=_ ("VERSION"),
89 help=_ ("start from VERSION [default: \\version found in file]"),
92 p.add_option ('-e', '--edit', help=_ ("edit in place"),
95 p.add_option ('-n', '--no-version',
96 help=_ ("do not add \\version command if missing"),
98 dest='skip_version_add',
101 p.add_option ('-c', '--current-version',
102 help=_ ("force updating \\version number to %s") % program_version,
104 dest='force_current_version',
107 p.add_option ("-s", '--show-rules',
108 help=_ ("show rules [default: -f 0, -t %s]") % program_version,
110 action='store_true', default=False)
112 p.add_option ('-t', '--to',
113 help=_ ("convert to VERSION [default: %s]") % program_version,
114 metavar=_ ('VERSION'),
119 p.add_option_group ('',
120 description=(_ ("Report bugs via")
121 + ''' http://post.gmane.org/post.php'''
122 '''?group=gmane.comp.gnu.lilypond.bugs\n'''))
128 def str_to_tuple (s):
129 return tuple ([int(n) for n in s.split ('.')])
132 return '.'.join (['%s' % x for x in t])
134 def version_cmp (t1, t2):
140 def get_conversions (from_version, to_version):
141 def is_applicable (v, f = from_version, t = to_version):
142 return version_cmp (v[0], f) > 0 and version_cmp (v[0], t) <= 0
143 return filter (is_applicable, convertrules.conversions)
145 def latest_version ():
146 return convertrules.conversions[-1][0]
148 def show_rules (file, from_version, to_version):
149 for x in convertrules.conversions:
150 if (not from_version or x[0] > from_version) \
151 and (not to_version or x[0] <= to_version):
152 ly.encoded_write (file, '%s: %s\n' % (tup_to_str (x[0]), x[2]))
154 def do_conversion (str, from_version, to_version):
155 """Apply conversions from FROM_VERSION to TO_VERSION. Return
156 tuple (LAST,STR), with the last succesful conversion and the resulting
158 conv_list = get_conversions (from_version, to_version)
160 error_file_write (_ ("Applying conversion: "))
165 error_file_write (tup_to_str (x[0]))
166 if x != conv_list[-1]:
167 error_file_write (', ')
169 last_conversion = x[0]
171 except convertrules.FatalConversionError:
172 error_file_write ('\n'
173 + _ ("Error while converting")
175 + _ ("Stopping at last succesful rule")
178 return (last_conversion, str)
182 def guess_lilypond_version (input):
183 m = lilypond_version_re.search (input)
189 class FatalConversionError:
192 class UnknownVersion:
195 def do_one_file (infile_name):
196 ly.stderr_write (_ ("Processing `%s\'... ") % infile_name)
197 sys.stderr.write ('\n')
200 infile = open (infile_name, 'r')
201 input = infile.read ()
204 input = sys.stdin.read ()
208 if global_options.from_version:
209 from_version = global_options.from_version
211 guess = guess_lilypond_version (input)
213 raise UnknownVersion ()
214 from_version = str_to_tuple (guess)
216 if global_options.to_version:
217 to_version = global_options.to_version
219 to_version = latest_version ()
222 (last, result) = do_conversion (input, from_version, to_version)
225 if global_options.force_current_version and last == to_version:
226 last = str_to_tuple (program_version)
228 newversion = r'\version "%s"' % tup_to_str (last)
229 if lilypond_version_re.search (result):
230 result = re.sub (lilypond_version_re_str,
231 '\\' + newversion, result)
232 elif not global_options.skip_version_add:
233 result = newversion + '\n' + result
235 error_file_write ('\n')
237 if global_options.edit:
239 os.remove(infile_name + '~')
242 os.rename (infile_name, infile_name + '~')
243 outfile = open (infile_name, 'w')
248 outfile.write (result)
253 opt_parser = get_option_parser()
254 (options, args) = opt_parser.parse_args ()
257 if options.from_version:
258 options.from_version = str_to_tuple (options.from_version)
259 if options.to_version:
260 options.to_version = str_to_tuple (options.to_version)
262 options.outfile_name = ''
263 global global_options
264 global_options = options
266 if not args and not options.show_rules:
267 opt_parser.print_help ()
273 files = do_options ()
275 # should parse files[] to read \version?
276 if global_options.show_rules:
277 show_rules (sys.stdout, global_options.from_version, global_options.to_version)
280 identify (sys.stderr)
285 elif not os.path.isfile (f):
286 error (_ ("cannot open file: `%s'") % f)
292 except UnknownVersion:
293 error (_ ("cannot determine version for `%s'. Skipping") % f)
295 sys.stderr.write ('\n')