From 4121ef7b3e4f6389fb05597fc159d9929ba84471 Mon Sep 17 00:00:00 2001
From: Jakob Voss <jakob@nichtich.de>
Date: Wed, 23 May 2012 12:40:46 +0200
Subject: [PATCH] include git revision hash and date

---
 Makefile                        | 13 ++++++++++---
 paia.md                         |  7 ++++---
 template.html => template.html5 |  0
 3 files changed, 14 insertions(+), 6 deletions(-)
 rename template.html => template.html5 (100%)

diff --git a/Makefile b/Makefile
index c7e019f..2f94416 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,10 @@
-paia.html: paia.md template.html references.bib
-	pandoc -N --bibliography=references.bib --template=template --toc -5 -o paia.html paia.md 
-	perl -p -i -e 's!(http://[^<]+)\.</p>!<a href="$$1"><code class="url">$$1</code></a>.</p>!g' paia.html
+REVHASH=$(shell git log -1 --format="%H" paia.md)
+REVDATE=$(shell git log -1 --format="%ad" --date=short paia.md)
+
+paia.html: paia.md template.html5 references.bib
+	sed s/GIT_REVISION_DATE/${REVDATE}/ paia.md \
+	| pandoc -N --bibliography=references.bib --template=template --toc -f markdown -t html5 -- \
+	| perl -p -e 's!(http://[^<]+)\.</p>!<a href="$$1"><code class="url">$$1</code></a>.</p>!g' \
+	| sed 's!GIT_REVISION_HASH!<a href="https://github.com/gbv/paia/commit/${REVHASH}">${REVHASH}<\/a>!' > paia.html
+
+
diff --git a/paia.md b/paia.md
index db967ef..d72c718 100644
--- a/paia.md
+++ b/paia.md
@@ -1,7 +1,6 @@
 % Patrons Account Information API (PAIA)
 % Jakob Voß
-% 2012-05-22
-
+% GIT_REVISION_DATE
 
 # Introduction
 
@@ -20,7 +19,9 @@ based on use cases and taking into account existing related standards and
 products such as NISO Circulation Interchange Protocol (NCIP), \[X]SLNP,
 DLF-ILS recommendations, and ViFind ILS drivers.
 
-Updates and sources can be found at <http://github.com/gbv/paia>.
+Updates and sources can be found at <http://github.com/gbv/paia>. The current
+version of this document was last modified at GIT_REVISION_DATE with revision
+GIT_REVISION_HASH.
 
 
 ## Conformance requirements
diff --git a/template.html b/template.html5
similarity index 100%
rename from template.html
rename to template.html5