Add "Extending FreeIPA" developer guide

"Extending FreeIPA" is a developer guide of FreeIPA core framework.
Please make sure to improve the guide every time parts of the core framework
are affected by your changes. This document ideally should correspond to
the current state of the framework.

The Guide is written using Emacs Org Mode but can be edited with any
plain text editing tool. Emacs is only required to convert it to
distribution formats like HTML and TXT.

See guide/Makefile for building the guide and README for details of
the build environment.

1 files changed, 36 insertions, 0 deletions

diff --git a/doc/guide/Makefile b/doc/guide/Makefile
new file mode 100644
index 00000000..2fc4af48
--- /dev/null
+++ b/doc/guide/Makefile
@@ -0,0 +1,36 @@
+FILE=guide.org
+XML=$(addsuffix .xml, $(basename $(FILE)))
+PDF=$(addsuffix .pdf, $(basename $(FILE)))
+TXT=$(addsuffix .txt, $(basename $(FILE)))
+HTML=$(addsuffix .html, $(basename $(FILE)))
+FO=$(addsuffix .fo, $(basename $(FILE)))
+
+all: $(PDF) $(TXT) $(HTML)
+	@echo Finished: $? are created
+
+plain: $(FILE)
+	@echo -n "Building HTML, Docbook, and plain text ..."
+	@emacs -batch -q --no-site-file -eval "(require 'org)" \
+     --visit $< -f org-export-as-html \
+     --visit $< -f org-export-as-docbook \
+     --visit $< -f org-export-as-ascii 2>/dev/null
+	@echo "done, see $(HTML), $(XML), $(TXT)"
+
+$(TXT): plain
+
+$(HTML): plain
+
+$(XML): plain
+
+$(FO): $(XML)
+	@xmlto --skip-validation fo $< 2>/dev/null
+
+$(PDF): $(FO)
+	@echo -n "Building PDF ... "
+	@fop -fo $< -pdf $@ -l en -a 2>/dev/null
+	@echo "done, see $(PDF)"
+
+.PHONY: clean
+
+clean:
+	@rm -f *.html *.txt *.xml *.fo *.pdf *~