bin/mf-deps.py

   1 #!@PYTHON@
   2
   3 #
   4 # mf-deps.py -- dependencies for metafont
   5 #
   6 # source file of the GNU LilyPond music typesetter
   7 #
   8 # (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   9 #
  10
  11
  12 """look into metafont source for dependencies.
  13
  14  fixme: python path
  15  fixme: error reporting
  16  fixem: python sucks slightly: why doesn't it have closures?
  17
  18 """
  19
  20 from regex import * ;
  21 from regsub import * ;
  22 import sys;
  23 import os;
  24
  25 input_re = compile('^[ \t]*input *\([^;]+\);')
  26 postfixes = ['log', 'dvi', '2602gf', 'tfm']
  27
  28
  29 def print_one(x):
  30     print x
  31
  32 def line_concat(x,y):
  33     return x + '\n' +  y
  34
  35 class Targetdeps:
  36     """Dependencies for one toplevel sourcefile
  37
  38     """
  39
  40     def __init__(self,nm):
  41         split = os.path.splitext(nm)
  42         self.basename=split[0];
  43         self.depfiles = []
  44         self.checkdep(nm)
  45
  46     def checkdep(self, name):
  47         split = os.path.splitext(name)
  48         name = split[0] + '.mf';
  49
  50         if name not in self.depfiles:
  51             self.get_filedeps(name)
  52
  53     def get_filedeps(self,filename):
  54 #       print sys.stderr.write( 'checking ' + filename + '\n');
  55         try:
  56             file = open(filename)
  57         except IOError:
  58 #           print sys.stderr.write( 'can\'t open ' + filename + '\n')
  59             return
  60
  61         self.depfiles.append(filename)
  62         lines = file.readlines()
  63         file.close()
  64         for line in lines:
  65             if input_re.search (line) <> -1:
  66                 self.checkdep( input_re.group(1))
  67
  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)
  73
  74         return reduce(line_concat, dependencies)
  75
  76
  77
  78 for file in sys.argv[1:]: # skip programname
  79     t = Targetdeps(file)
  80     print t.target_string()
  81
  82