Maybe now the revision commands will work on the build server...

Makefile

@@ -5,6 +5,7 @@ GITINFO=revision.tex
 LILY_PDF = lilypond-book --pdf -o $(OUTDIR)
 PDF=cd $(OUTDIR) && pdflatex --enable-pipes --shell-escape $(FILE).tex
 INDEX=cd $(OUTDIR) && makeindex $(FILE).tex
+OUTPUT = `git log -1 --format="%h"`
 
 .SUFFIXES: .lytex .tex .ly .pdf
 
@@ -34,9 +35,10 @@ $(OUTDIR):
 $(PDFDIR):
 	mkdir -p $(PDFDIR)
 
-$(GITINFO):
-	echo "% Autogenerated, do not edit" > $(GITINFO)	
-	echo "\\newcommand{\\revision}{`git log -1 --format=\"%h\"`}" >> $(GITINFO)
+$(GITINFO): FORCE
+	echo "\\newcommand{\\revision}{$(OUTPUT)}" > $(GITINFO)
 
 clean:
 	rm -rf $(OUTDIR)	
+
+FORCE:

music_booklet.lytex

@@ -7,6 +7,7 @@
 \usepackage{xmpincl}
 \usepackage{hyperref}
 
+\input{revision.tex}
 \input{settings.tex}
 \input{headfoot.tex}
 

title.tex

@@ -1,5 +1,4 @@
 \begin{titlepage}    
-    \input{revision.tex}
 	\begin{center}	
 		\includegraphics[width=0.50\textwidth]{images/title.png}\\