4 # mf-deps.py -- dependencies for metafont
6 # source file of the GNU LilyPond music typesetter
8 # (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
12 """look into metafont source for dependencies.
15 fixme: error reporting
16 fixem: python sucks slightly: why doesn't it have closures?
21 from regsub import * ;
25 input_re = compile('^[ \t]*input *\([^;]+\);')
26 postfixes = ['log', 'dvi', '2602gf', 'tfm']
36 """Dependencies for one toplevel sourcefile
40 def __init__(self,nm):
41 split = os.path.splitext(nm)
42 self.basename=split[0];
46 def checkdep(self, name):
47 split = os.path.splitext(name)
48 name = split[0] + '.mf';
50 if name not in self.depfiles:
51 self.get_filedeps(name)
53 def get_filedeps(self,filename):
54 # print sys.stderr.write( 'checking ' + filename + '\n');
58 # print sys.stderr.write( 'can\'t open ' + filename + '\n')
61 self.depfiles.append(filename)
62 lines = file.readlines()
65 if input_re.search (line) <> -1:
66 self.checkdep( input_re.group(1))
68 def target_string(self):
69 # ugh. Closures, anyone?
70 targets = map (lambda x,y = self.basename: 'out/' + y + '.' + x, postfixes)
71 depstring = reduce(lambda x,y: x + ' ' + y, self.depfiles)
72 dependencies = map (lambda x, y=depstring: x + ': ' + y, targets)
74 return reduce(line_concat, dependencies)
78 for file in sys.argv[1:]: # skip programname
80 print t.target_string()