1 # -*- coding: utf-8 -*-
4 # This file is part of LyX, the document processor.
5 # Licence details can be found in the file COPYING.
7 # \author Thibaut Cuvelier
9 # Full author contact details are available in file CREDITS
12 # python docbook_copy.py lilypond_book_command in.docbook out.docbook
13 # This script copies the original DocBook file (directly produced by LyX) to the output DocBook file,
14 # potentially applying a post-processing step. For now, the only implemented post-processing step is
16 # lilypond_book_command is either directly the binary to call OR the equivalent Python script that is
17 # not directly executable.
18 # /!\ The original file may be modified by this script!
29 def need_lilypond(file):
30 # Really tailored to the kind of output lilypond.module makes (in lib/layouts).
31 with open(file, 'r') as f:
32 return "language='lilypond'" in f.read()
35 def copy_docbook(args):
38 print('Exactly four arguments are expected, only %s found: %s.' % (len(args), args))
41 # Parse the command line.
42 lilypond_command = args[1]
46 has_lilypond = lilypond_command != "" and lilypond_command != "none"
48 # Guess the path for LilyPond.
49 lilypond_folder = os.path.split(lilypond_command)[0] if has_lilypond else ''
52 print(">> Given arguments:")
53 print(">> LilyPond: " + ("present" if has_lilypond else "not found") + " " + lilypond_command)
54 print(">> LilyPond path: " + lilypond_folder)
55 print(">> Input file: " + in_file)
56 print(">> Output file: " + out_file)
58 # Apply LilyPond to the original file if available and needed.
59 if has_lilypond and need_lilypond(in_file):
60 in_lily_file = in_file.replace(".xml", ".lyxml")
61 print(">> The input file needs a LilyPond pass and LilyPond is available.")
62 print(">> Rewriting " + in_file + " as " + in_lily_file)
64 # LilyPond requires that its input file has the .lyxml extension. Due to a bug in LilyPond,
65 # use " instead of ' to encode XML attributes.
66 # https://lists.gnu.org/archive/html/bug-lilypond/2021-09/msg00039.html
67 # Typical transformation:
68 # FROM: language='lilypond' role='fragment verbatim staffsize=16 ragged-right relative=2'
69 # TO: language="lilypond" role="fragment verbatim staffsize=16 ragged-right relative=2"
70 with open(in_file, 'r', encoding='utf-8') as f, open(in_lily_file, 'w', encoding='utf-8') as f_lily:
72 if "language='lilypond'" in line:
74 '<programlisting\\s+language=\'lilypond\'.*?(role=\'(?P<options>.*?)\')?>',
75 '<programlisting language="lilypond" role="\\g<options>">',
81 # Add LilyPond to the PATH.
82 if os.path.isdir(lilypond_folder):
83 os.environ['PATH'] += os.pathsep + lilypond_folder
85 # Start LilyPond on the copied file. First test the binary, then check if adding Python helps.
86 command_raw = [lilypond_command, '--format=docbook', in_lily_file]
87 command_python = ['python', lilypond_command, '--format=docbook', in_lily_file]
91 subprocess.check_call(command_raw, stdout=sys.stdout.fileno(), stderr=sys.stdout.fileno())
92 print(">> Success running LilyPond with " + str(command_raw))
93 except (subprocess.CalledProcessError, OSError) as e1:
95 subprocess.check_call(command_python, stdout=sys.stdout.fileno(), stderr=sys.stdout.fileno())
96 print(">> Success running LilyPond with " + str(command_python))
97 except (subprocess.CalledProcessError, OSError) as e2:
98 print('>> Error from LilyPond')
99 print('>> Error from trying ' + str(command_raw) + ':')
101 print('>> Error from trying ' + str(command_python) + ':')
108 # Now, in_file should have the LilyPond-processed contents.
110 # Perform the final copy.
111 shutil.copyfile(in_file, out_file, follow_symlinks=False)
114 if __name__ == '__main__':
115 copy_docbook(sys.argv)