python/lilylib.py

   1 ###############################################################
   2 # lilylib.py -- options and stuff
   3 #
   4 # source file of the GNU LilyPond music typesetter
   5 #
   6 # (c) 1998--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 #                 Jan Nieuwenhuizen <janneke@gnu.org>
   8
   9 import __main__
  10 import glob
  11 import os
  12 import re
  13 import shutil
  14 import sys
  15 import optparse
  16
  17 ################################################################
  18 # Users of python modules should include this snippet
  19 # and customize variables below.
  20
  21 # We'll suffer this path init stuff as long as we don't install our
  22 # python packages in <prefix>/lib/pythonx.y (and don't kludge around
  23 # it as we do with teTeX on Red Hat Linux: set some environment var
  24 # (PYTHONPATH) in profile)
  25
  26 # If set, LILYPOND_DATADIR must take prevalence
  27 # if datadir is not set, we're doing a build and LILYPOND_DATADIR
  28
  29 datadir = '@local_lilypond_datadir@'
  30 if not os.path.isdir (datadir):
  31     datadir = '@lilypond_datadir@'
  32 if os.environ.has_key ('LILYPOND_DATADIR') :
  33     datadir = os.environ['LILYPOND_DATADIR']
  34     while datadir[-1] == os.sep:
  35         datadir= datadir[:-1]
  36
  37 sys.path.insert (0, os.path.join (datadir, 'python'))
  38
  39
  40 # Python 2.5 only accepts strings with proper Python internal encoding
  41 # (i.e. ASCII or Unicode) when writing to stdout/stderr, so we must
  42 # use ugettext iso gettext, and encode the string when writing to
  43 # stdout/stderr
  44
  45 localedir = '@localedir@'
  46 try:
  47     import gettext
  48     t = gettext.translation ('lilypond', localedir)
  49     _ = t.ugettext
  50 except:
  51     def _ (s):
  52         return s
  53 underscore = _
  54
  55 # Urg, Python 2.4 does not define stderr/stdout encoding
  56 # Maybe guess encoding from LANG/LC_ALL/LC_CTYPE?
  57
  58 def encoded_write(f, s):
  59     f.write (s.encode (f.encoding or 'utf_8'))
  60
  61 # ugh, Python 2.5 optparse requires Unicode strings in some argument
  62 # functions, and refuse them in some other places
  63 def display_encode (s):
  64     return s.encode (sys.stderr.encoding or 'utf_8')
  65
  66 def stderr_write (s):
  67     encoded_write (sys.stderr, s)
  68
  69 progress = stderr_write
  70
  71 def require_python_version ():
  72     if sys.hexversion < 0x02040000:
  73         stderr_write ("Python 2.4 or newer is required to run this program.\n\
  74 Please upgrade Python from http://python.org/download/, and if you use MacOS X,\n\
  75 please read 'Setup for MacOS X' in Application Usage.")
  76         os.system ("open http://python.org/download/")
  77         sys.exit (2)
  78
  79 # Modified version of the commands.mkarg(x), which always uses
  80 # double quotes (since Windows can't handle the single quotes:
  81 def mkarg(x):
  82     s = ' "'
  83     for c in x:
  84         if c in '\\$"`':
  85             s = s + '\\'
  86         s = s + c
  87     s = s + '"'
  88     return s
  89
  90 def command_name (cmd):
  91     # Strip all stuf after command,
  92     # deal with "((latex ) >& 1 ) .." too
  93     cmd = re.match ('([\(\)]*)([^\\\ ]*)', cmd).group (2)
  94     return os.path.basename (cmd)
  95
  96 def subprocess_system (cmd,
  97                        ignore_error=False,
  98                        progress_p=True,
  99                        be_verbose=False,
 100                        log_file=None):
 101     import subprocess
 102
 103     show_progress= progress_p
 104     name = command_name (cmd)
 105     error_log_file = ''
 106
 107     if be_verbose:
 108         show_progress = 1
 109         progress (_ ("Invoking `%s\'") % cmd)
 110     else:
 111         progress ( _("Running %s...") % name)
 112
 113
 114     stdout_setting = None
 115     if not show_progress:
 116         stdout_setting = subprocess.PIPE
 117
 118     proc = subprocess.Popen (cmd,
 119                              shell=True,
 120                              universal_newlines=True,
 121                              stdout=stdout_setting,
 122                              stderr=stdout_setting)
 123
 124     log = ''
 125
 126     if show_progress:
 127         retval = proc.wait()
 128     else:
 129         log = proc.communicate ()
 130         retval = proc.returncode
 131
 132
 133     if retval:
 134         print >>sys.stderr, 'command failed:', cmd
 135         if retval < 0:
 136             print >>sys.stderr, "Child was terminated by signal", -retval
 137         elif retval > 0:
 138             print >>sys.stderr, "Child returned", retval
 139
 140         if ignore_error:
 141             print >>sys.stderr, "Error ignored"
 142         else:
 143             if not show_progress:
 144                 print log[0]
 145                 print log[1]
 146             sys.exit (1)
 147
 148     return abs (retval)
 149
 150 def ossystem_system (cmd,
 151                      ignore_error=False,
 152                      progress_p=True,
 153                      be_verbose=False,
 154                      log_file=None):
 155
 156
 157     name = command_name (cmd)
 158     if be_verbose:
 159         show_progress = 1
 160         progress (_ ("Invoking `%s\'") % cmd)
 161     else:
 162         progress ( _("Running %s...") % name)
 163
 164     retval = os.system (cmd)
 165     if retval:
 166         print >>sys.stderr, 'command failed:', cmd
 167         if retval < 0:
 168             print >>sys.stderr, "Child was terminated by signal", -retval
 169         elif retval > 0:
 170             print >>sys.stderr, "Child returned", retval
 171
 172         if ignore_error:
 173             print >>sys.stderr, "Error ignored"
 174         else:
 175             sys.exit (1)
 176
 177     return abs (retval)
 178
 179
 180 system = subprocess_system
 181 if sys.platform == 'mingw32':
 182
 183     ## subprocess x-compile doesn't work.
 184     system = ossystem_system
 185
 186 def strip_extension (f, ext):
 187     (p, e) = os.path.splitext (f)
 188     if e == ext:
 189         e = ''
 190     return p + e
 191
 192
 193 def search_exe_path (name):
 194     p = os.environ['PATH']
 195     exe_paths = p.split (':')
 196     for e in exe_paths:
 197         full = os.path.join (e, name)
 198         if os.path.exists (full):
 199             return full
 200     return None
 201
 202
 203 def print_environment ():
 204     for (k,v) in os.environ.items ():
 205         sys.stderr.write ("%s=\"%s\"\n" % (k, v))
 206
 207 class NonDentedHeadingFormatter (optparse.IndentedHelpFormatter):
 208     def format_heading(self, heading):
 209         if heading:
 210             return heading[0].upper() + heading[1:] + ':\n'
 211         return ''
 212     def format_option_strings(self, option):
 213         sep = ' '
 214         if option._short_opts and option._long_opts:
 215             sep = ','
 216
 217         metavar = ''
 218         if option.takes_value():
 219             metavar = '=%s' % option.metavar or option.dest.upper()
 220
 221         return "%3s%s %s%s" % (" ".join (option._short_opts),
 222                                sep,
 223                                " ".join (option._long_opts),
 224                                metavar)
 225
 226     def format_usage(self, usage):
 227         return _("Usage: %s") % usage + '\n'
 228
 229     def format_description(self, description):
 230         return description
 231
 232 def get_option_parser (*args, **kwargs):
 233     p = optparse.OptionParser (*args, **kwargs)
 234     p.formatter = NonDentedHeadingFormatter ()
 235     return p