* scripts/lilypond-book.py (do_file): do not overwrite input file.

[lilypond.git] / scripts / lilypond-book.py

diff --git a/scripts/lilypond-book.py b/scripts/lilypond-book.py
index 8849394a7cd1d028a053f43d68932ed9b98eadc5..4877122d1bc4fe67da21225012f7209a964a1e63 100644 (file)
--- a/scripts/lilypond-book.py
+++ b/scripts/lilypond-book.py
@@ -667,6 +667,7 @@ LATEX_DOCUMENT = r'''
 '''
 #need anything else besides textwidth?
 def get_latex_textwidth (source):
+       print 'hoi\n', source
        m = re.search (r'''(?P<preamble>\\begin\s*{document})''', source)
        preamble = source[:m.start (0)]
        latex_document = LATEX_DOCUMENT % vars ()
@@ -754,12 +755,19 @@ def do_file (input_filename):
                        output_filename = (output_name
                                           + '/' + input_base
                                           + format2ext[format])
+
+
+               if os.path.samefile (output_filename, input_fullname):
+                       ly.error (_("Output would overwrite input file; use --output."))
+                       sys.exit (2)
+
                output_file = open (output_filename, 'w')
                if output_name:
                        os.chdir (output_name)
 
        ly.progress (_ ("Reading %s...") % input_fullname)
        source = in_handle.read ()
+       print 'hoai', source, in_handle
        ly.progress ('\n')
        
        snippet_types = (