The lytex file now gets assembled with the help of a python script. because I can!

Makefile

@@ -1,6 +1,6 @@
 OUTDIR=out
 PDFDIR=pdf
-FILE = music_booklet
+FILE = singalongs
 GITINFO=revision.tex
 LILY_PDF = lilypond-book --process="lilypond -dinclude-settings=lilysettings.ly" --pdf -o $(OUTDIR)
 PDF=cd $(OUTDIR) && pdflatex --enable-pipes --shell-escape $(FILE).tex
@@ -17,13 +17,14 @@ VPATH = \
 all: book booklet
 
 book: $(OUTDIR) $(PDFDIR) $(GITINFO)
+	python assemble.py > $(OUTDIR)/$(FILE).lytex
 	cp lilysettings.ly  $(OUTDIR)/
 	cp headfoot.tex $(OUTDIR)/
 	cp settings.tex $(OUTDIR)/
 	cp -r license/ $(OUTDIR)/
 	cp -r images/ $(OUTDIR)/
 	cp $(GITINFO) $(OUTDIR)/
-	$(LILY_PDF) $(FILE).lytex
+	$(LILY_PDF) $(OUTDIR)/$(FILE).lytex
 	$(PDF)
 	$(INDEX)
 	$(PDF)

assemble.py

@@ -0,0 +1,72 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import os
+import re
+
+lily_template = """
+\chapter {[[title]]}    
+    \lilypondfile{[[scorefile]]}
+    ~\\ ~\\
+    \input{[[lyricfile]]}
+"""
+
+def find_ly_files(path='./scores'):
+  lilyfiles = []
+  for found_file in os.listdir(path):
+    if found_file.endswith(".ly"):
+      filepath = os.path.join(path, found_file)
+      lilyfiles.append(filepath)
+  
+  return lilyfiles
+  
+def build_songmap(lilyfiles, lyric_folder='./lyrics'):
+  songmap = []
+  for scorefile in lilyfiles:
+    filename_with_ext = os.path.basename(scorefile)
+    filename = os.path.splitext(filename_with_ext)[0]
+    lyricfile = os.path.join(lyric_folder, "{0}.tex".format(filename))
+    
+    title = find_title(scorefile)
+    
+    songmap.append({'scorefile': scorefile, 'lyricfile': lyricfile, 'title': title })  
+
+  return songmap
+
+def find_title(scorefile):
+  with open(scorefile) as opened_file:
+    score = opened_file.read()
+    title = re.findall('title = "(.*)"', score)
+    
+    return title[0]
+
+def build_lytex(base_template, songmap):
+  lilychapters = []
+  for song in sorted(songmap, key=lambda k: k['scorefile']):    
+    lilychapter = lily_template.replace('[[title]]', song['title'])
+    lilychapter = lilychapter.replace('[[scorefile]]', song['scorefile'])
+    lilychapter = lilychapter.replace('[[lyricfile]]', song['lyricfile'])
+    
+    lilychapters.append(lilychapter)
+  
+  lilychapters_string = create_lilychapter_string(lilychapters)  
+  
+  with open(base_template) as opened_file:
+    template = opened_file.read()
+    template = template.replace('\\musicbooklet', lilychapters_string)
+    
+    return template
+
+def create_lilychapter_string(lilychapters):
+  lilychapter_string = ''
+  for lilychapter in lilychapters:
+    lilychapter_string += '{0}\n'.format(lilychapter)
+  
+  return lilychapter_string      
+  
+lilyfiles = find_ly_files()    
+songmap = build_songmap(lilyfiles)
+lytex_source = build_lytex('singalongs.tex', songmap)
+
+print(lytex_source)
+  

music_booklet.lytex

@@ -1,154 +0,0 @@
-% This document is free software: you can redistribute it and/or modify
-% it under the terms of the GNU General Public License as published by
-% the Free Software Foundation, either version 3 of the License, or
-% (at your option) any later version.
-%
-% This document is distributed in the hope that it will be useful,
-% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-% GNU General Public License for more details.
-%
-% You should have received a copy of the GNU General Public License
-% along with this document.  If not, see <http://www.gnu.org/licenses/>.
-
-\documentclass[12pt, a4paper, openany]{scrbook}
-\usepackage[utf8]{inputenc}
-\usepackage[T1]{fontenc}
-\usepackage{graphicx}
-\usepackage{fancyhdr}
-\usepackage{geometry}
-\usepackage{xmpincl}
-\usepackage{hyperref}
-
-\input{revision.tex}
-\input{settings.tex}
-\input{headfoot.tex}
-
-\renewcommand*\rmdefault{iwona}\normalfont\upshape
-
-\begin{document}  
-  \widowpenalties 1 10000
-  \raggedbottom  
-  \pagenumbering{roman}   
-  
-  \input{title.tex}
-    
-  \chapter*{Contributors}
-    \begin{itemize}
-        \item Matias Hugentobler
-        \item Sebastian Hugentobler
-    \end{itemize}
-  
-  \tableofcontents  
-  
-  \clearpage
-  
-  \pagenumbering{arabic}  
-
-  \chapter{All for Me Grog}
-    \lilypondfile{notes/AllForMeGrog.ly}
-    ~\\ ~\\
-    \input{lyrics/AllForMeGrog.tex} 
-
-  \chapter{Auld Lang Syne}    
-    \lilypondfile{notes/AuldLangSyne.ly}
-    ~\\ ~\\
-    \input{lyrics/AuldLangSyne.tex}    
-    
-  \chapter{The Black Velvet Band}    
-    \lilypondfile{notes/BlackVelvetBand.ly}
-    ~\\ ~\\
-    \input{lyrics/BlackVelvetBand.tex}
-    
-  \chapter{Bürgerlied}    
-    \lilypondfile{notes/Buergerlied.ly}
-    ~\\ ~\\
-    \input{lyrics/Buergerlied.tex}
-
-  \chapter {Drunken Sailor}    
-    \lilypondfile{notes/DrunkenSailor.ly}
-    ~\\ ~\\
-    \input{lyrics/DrunkenSailor.tex} 
-
-  \chapter{Finnegan's Wake}    
-    \lilypondfile{notes/FinnegansWake.ly}
-    ~\\ ~\\
-    \input{lyrics/FinnegansWake.tex}
-
-  \chapter{The Foggy Dew}    
-    \lilypondfile{notes/FoggyDew.ly}
-    ~\\ ~\\
-    \input{lyrics/FoggyDew.tex}  
-
-  \chapter{I'm a Rover Seldom Sober}    
-    \lilypondfile{notes/ImARoverSeldomSober.ly}
-    ~\\ ~\\
-    \input{lyrics/ImARoverSeldomSober.tex}
-
-  \chapter{The Irish Rover}    
-    \lilypondfile{notes/IrishRover.ly}
-    ~\\ ~\\
-    \input{lyrics/IrishRover.tex}
-    
-  \chapter{Johnny I Hardly Knew Ye}    
-    \lilypondfile{notes/JohnnyIHardlyKnewYe.ly}
-    ~\\ ~\\
-    \input{lyrics/JohnnyIHardlyKnewYe.tex}
-
-  \chapter{The Kerry Recruit}    
-    \lilypondfile{notes/KerryRecruit.ly}
-    ~\\ ~\\
-    \input{lyrics/KerryRecruit.tex}
-    
-  \chapter{MacPherson's Farewell}    
-    \lilypondfile{notes/MacPhersonsFarewell.ly}
-    ~\\ ~\\
-    \input{lyrics/MacPhersonsFarewell.tex}
-
-  \chapter{Molly Malone}    
-    \lilypondfile{notes/MollyMalone.ly}
-    ~\\ ~\\
-    \input{lyrics/MollyMalone.tex}
-
-  \chapter{Muirsheen Durkin}    
-    \lilypondfile{notes/MuirsheenDurkin.ly}
-    ~\\ ~\\
-    \input{lyrics/MuirsheenDurkin.tex}
-
-  \chapter {A Nation Once Again}    
-    \lilypondfile{notes/NationOnceAgain.ly}
-    ~\\ ~\\
-    \input{lyrics/NationOnceAgain.tex}    
-    
-  \chapter{The Parting Glass}    
-    \lilypondfile{notes/PartingGlass.ly}
-    ~\\ ~\\
-    \input{lyrics/PartingGlass.tex}  
-        
-  \chapter {The Rising of the Moon}          
-    \lilypondfile{notes/RisingOfTheMoon.ly}
-    ~\\ ~\\
-    \input{lyrics/RisingOfTheMoon.tex}
-  
-  \chapter{Spancil Hill}    
-    \lilypondfile{notes/SpancilHill.ly}
-    ~\\ ~\\
-    \input{lyrics/SpancilHill.tex}
-      
-  \chapter{The Star of the County Down}    
-    \lilypondfile{notes/StarOfTheCountyDown.ly}
-    ~\\ ~\\
-    \input{lyrics/StarOfTheCountyDown.tex}   
-       
-  \chapter{Whiskey in the Jar}    
-    \lilypondfile{notes/WhiskeyInTheJar.ly}
-    ~\\ ~\\
-    \input{lyrics/WhiskeyInTheJar.tex}
-       
-  \chapter{The Wild Rover}    
-    \lilypondfile{notes/WildRover.ly}
-    ~\\ ~\\
-    \input{lyrics/WildRover.tex}
-
-\end{document}
-

singalongs.tex

@@ -0,0 +1,51 @@
+% This document is free software: you can redistribute it and/or modify
+% it under the terms of the GNU General Public License as published by
+% the Free Software Foundation, either version 3 of the License, or
+% (at your option) any later version.
+%
+% This document is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with this document.  If not, see <http://www.gnu.org/licenses/>.
+
+\documentclass[12pt, a4paper, openany]{scrbook}
+\usepackage[utf8]{inputenc}
+\usepackage[T1]{fontenc}
+\usepackage{graphicx}
+\usepackage{fancyhdr}
+\usepackage{geometry}
+\usepackage{xmpincl}
+\usepackage{hyperref}
+
+\input{revision.tex}
+\input{settings.tex}
+\input{headfoot.tex}
+
+\renewcommand*\rmdefault{iwona}\normalfont\upshape
+
+\begin{document}  
+  \widowpenalties 1 10000
+  \raggedbottom  
+  \pagenumbering{roman}   
+  
+  \input{title.tex}
+    
+  \chapter*{Contributors}
+    \begin{itemize}
+        \item Matias Hugentobler
+        \item Sebastian Hugentobler
+    \end{itemize}
+  
+  \tableofcontents  
+  
+  \clearpage
+  
+  \pagenumbering{arabic}  
+
+  \musicbooklet
+
+\end{document}
+