python/lilylib.py

   1 ###############################################################
   2 # lilylib.py -- options and stuff
   3 #
   4 # source file of the GNU LilyPond music typesetter
   5 #
   6 # (c) 1998--2009 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
  22 # Python 2.5 only accepts strings with proper Python internal encoding
  23 # (i.e. ASCII or Unicode) when writing to stdout/stderr, so we must
  24 # use ugettext iso gettext, and encode the string when writing to
  25 # stdout/stderr
  26
  27 localedir = '@localedir@'
  28 try:
  29     import gettext
  30     t = gettext.translation ('lilypond', localedir)
  31     _ = t.ugettext
  32 except:
  33     def _ (s):
  34         return s
  35 underscore = _
  36
  37 # Urg, Python 2.4 does not define stderr/stdout encoding
  38 # Maybe guess encoding from LANG/LC_ALL/LC_CTYPE?
  39
  40 def encoded_write(f, s):
  41     f.write (s.encode (f.encoding or 'utf_8'))
  42
  43 # ugh, Python 2.5 optparse requires Unicode strings in some argument
  44 # functions, and refuse them in some other places
  45 def display_encode (s):
  46     return s.encode (sys.stderr.encoding or 'utf_8')
  47
  48 def stderr_write (s):
  49     encoded_write (sys.stderr, s)
  50
  51 progress = stderr_write
  52
  53 def require_python_version ():
  54     if sys.hexversion < 0x02040000:
  55         stderr_write ("Python 2.4 or newer is required to run this program.\n\
  56 Please upgrade Python from http://python.org/download/, and if you use MacOS X,\n\
  57 please read 'Setup for MacOS X' in Application Usage.")
  58         os.system ("open http://python.org/download/")
  59         sys.exit (2)
  60
  61 # Modified version of the commands.mkarg(x), which always uses
  62 # double quotes (since Windows can't handle the single quotes:
  63 def mkarg(x):
  64     s = ' "'
  65     for c in x:
  66         if c in '\\$"`':
  67             s = s + '\\'
  68         s = s + c
  69     s = s + '"'
  70     return s
  71
  72 def command_name (cmd):
  73     # Strip all stuf after command,
  74     # deal with "((latex ) >& 1 ) .." too
  75     cmd = re.match ('([\(\)]*)([^\\\ ]*)', cmd).group (2)
  76     return os.path.basename (cmd)
  77
  78 def subprocess_system (cmd,
  79                        ignore_error=False,
  80                        progress_p=True,
  81                        be_verbose=False,
  82                        log_file=None):
  83     import subprocess
  84
  85     show_progress= progress_p
  86     name = command_name (cmd)
  87     error_log_file = ''
  88
  89     if be_verbose:
  90         show_progress = 1
  91         progress (_ ("Invoking `%s\'") % cmd)
  92     else:
  93         progress ( _("Running %s...") % name)
  94
  95
  96     stdout_setting = None
  97     if not show_progress:
  98         stdout_setting = subprocess.PIPE
  99
 100     proc = subprocess.Popen (cmd,
 101                              shell=True,
 102                              universal_newlines=True,
 103                              stdout=stdout_setting,
 104                              stderr=stdout_setting)
 105
 106     log = ''
 107
 108     if show_progress:
 109         retval = proc.wait()
 110     else:
 111         log = proc.communicate ()
 112         retval = proc.returncode
 113
 114
 115     if retval:
 116         print >>sys.stderr, 'command failed:', cmd
 117         if retval < 0:
 118             print >>sys.stderr, "Child was terminated by signal", -retval
 119         elif retval > 0:
 120             print >>sys.stderr, "Child returned", retval
 121
 122         if ignore_error:
 123             print >>sys.stderr, "Error ignored"
 124         else:
 125             if not show_progress:
 126                 print log[0]
 127                 print log[1]
 128             sys.exit (1)
 129
 130     return abs (retval)
 131
 132 def ossystem_system (cmd,
 133                      ignore_error=False,
 134                      progress_p=True,
 135                      be_verbose=False,
 136                      log_file=None):
 137
 138
 139     name = command_name (cmd)
 140     if be_verbose:
 141         show_progress = 1
 142         progress (_ ("Invoking `%s\'") % cmd)
 143     else:
 144         progress ( _("Running %s...") % name)
 145
 146     retval = os.system (cmd)
 147     if retval:
 148         print >>sys.stderr, 'command failed:', cmd
 149         if retval < 0:
 150             print >>sys.stderr, "Child was terminated by signal", -retval
 151         elif retval > 0:
 152             print >>sys.stderr, "Child returned", retval
 153
 154         if ignore_error:
 155             print >>sys.stderr, "Error ignored"
 156         else:
 157             sys.exit (1)
 158
 159     return abs (retval)
 160
 161
 162 system = subprocess_system
 163 if sys.platform == 'mingw32':
 164
 165     ## subprocess x-compile doesn't work.
 166     system = ossystem_system
 167
 168 def strip_extension (f, ext):
 169     (p, e) = os.path.splitext (f)
 170     if e == ext:
 171         e = ''
 172     return p + e
 173
 174
 175 def search_exe_path (name):
 176     p = os.environ['PATH']
 177     exe_paths = p.split (':')
 178     for e in exe_paths:
 179         full = os.path.join (e, name)
 180         if os.path.exists (full):
 181             return full
 182     return None
 183
 184
 185 def print_environment ():
 186     for (k,v) in os.environ.items ():
 187         sys.stderr.write ("%s=\"%s\"\n" % (k, v))
 188
 189 class NonDentedHeadingFormatter (optparse.IndentedHelpFormatter):
 190     def format_heading(self, heading):
 191         if heading:
 192             return heading[0].upper() + heading[1:] + ':\n'
 193         return ''
 194     def format_option_strings(self, option):
 195         sep = ' '
 196         if option._short_opts and option._long_opts:
 197             sep = ','
 198
 199         metavar = ''
 200         if option.takes_value():
 201             metavar = '=%s' % option.metavar or option.dest.upper()
 202
 203         return "%3s%s %s%s" % (" ".join (option._short_opts),
 204                                sep,
 205                                " ".join (option._long_opts),
 206                                metavar)
 207
 208     def format_usage(self, usage):
 209         return _("Usage: %s") % usage + '\n'
 210
 211     def format_description(self, description):
 212         return description
 213
 214 def get_option_parser (*args, **kwargs):
 215     p = optparse.OptionParser (*args, **kwargs)
 216     p.formatter = NonDentedHeadingFormatter ()
 217     return p