#!/bin/sh
set -e

#  Copyright (C) 2006-2009  Neil Williams <codehelp@debian.org>
#
#  This program 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 program 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 program.  If not, see <http://www.gnu.org/licenses/>.

# name and location of the config file
# relative to the top level source directory of the translations
# i.e. the directory containing ./po/
CONFIG="doc/po4a.config"
# POTFILE path
POTFILE="po/emdebian-rootfs.pot"
# the binary packages that will contain generated manpages
BINARIES="emdebian-rootfs multistrap"
# the binary packages with manpages in Section 3.
HASMAN3="emdebian-rootfs"
# the binary packages using DocBook XML & xsltproc
XMLPACKAGES="emdebian-rootfs"
# the DocBook XML files (TODO: let this take paths)
XMLFILE="emdebian-rootfs.1.xml"
# the XSL file to use for Docbook XSL
XSLFILE="http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl"
# the POD files (TODO: let this take paths)
PODFILE="em_multistrap"
# the binary packages using POD
PODPACKAGES="multistrap"

# remember to add something to the clean:: rule in debian/rules
# to remove each binary package sub-directory.
# $(RM) -r doc/emdebian-rootfs doc/multistrap

# below this point, no changes should be needed.

wrap_langs () {
	if [ -z "$LANGS" ]; then
		echo "$1 $2" >> $CONFIG
	else
		echo "$1 $2 $3" >> $CONFIG
	fi
}

if [ -f po4a.config ]; then
	cd ../
fi
if [ -f ../po4a.config ]; then
	cd ../../
fi

# calculate the langs, automatically.
LANGS=`ls po/*.po 2>/dev/null || true`
if [ ! -z "$LANGS" ]; then
	LANGS=`ls po/*.po | sed -e 's/.*\/\(.*\)\.po/\1 /' || true`
fi
if [ ! -z "$LANGS" ]; then
	# LANGS should not include the specification, just the root.
	LANGS=`echo $LANGS | sed -e 's/_.*//'`
	LANGS=`echo $LANGS | sed -e 's/@.*//'`
	LANGS=`echo $LANGS | sed -e 's/\+.*//'`
	echo "[po4a_langs] $LANGS" > $CONFIG
	else
	echo > $CONFIG
fi
wrap_langs "[po4a_paths]" "$POTFILE" "\$lang:po/\$lang.po"

for d in $BINARIES; do
	for l in $LANGS; do
		mkdir -p doc/$d/man/$l/man1/
		if [ "$d" = "$HASMAN3" ]; then
			mkdir -p doc/$d/man/$l/man3/
		fi
	done
	mkdir -p doc/$d/man/man1/
	if [ "$d" = "$HASMAN3" ]; then
		mkdir -p doc/$d/man/man3/
	fi
	mkdir -p doc/pod/$l/
done
mkdir -p doc/html/

for file in `ls doc/xml/*.xml`; do
	xmllint --format "$file" --output "$file"
	LOCAL=`basename $file`
	wrap_langs "[type:docbook]" "$file" "\$lang:doc/xml/\$lang/$LOCAL"
done
for file in "$PODFILE"; do
	wrap_langs "[type: pod]" "$file" "\$lang:doc/pod/\$lang/$file"
done

# use -k to create all XML even if untranslated or the XSL breaks the build.
po4a -k 0 $CONFIG

for d in $BINARIES; do
	for P in $XMLPACKAGES; do
		for X in $XMLFILE; do
			XML_CATALOG_FILES="/etc/xml/catalog" \
			xsltproc -o doc/man/ --nonet $XSLFILE doc/xml/$X
		done
		if [ "$d" = "$HASMAN3" ]; then
			mv doc/man/*.3 doc/$P/man/man3/
		fi
		mv doc/man/*.1 doc/$P/man/man1/
	done
	for POD in $PODPACKAGES; do
		pod2man $PODFILE > doc/$POD/man/man1/$PODFILE.1
	done
	for l in $LANGS; do
		for P in $XMLPACKAGES; do
			for X in $XMLFILE; do
				XML_CATALOG_FILES="/etc/xml/catalog" \
				xsltproc -o doc/man/ --nonet $XSLFILE doc/xml/$l/$X
			done
			if [ "$d" = "$HASMAN3" ]; then
				mv doc/man/*.3 doc/$P/man/$l/man3/
			fi
			mv doc/man/*.1 doc/$P/man/$l/man1/
		done
		for POD in $PODPACKAGES; do
			pod2man doc/pod/$l/$PODFILE > doc/$POD/man/$l/man1/$PODFILE.1
		done
	done
done
for l in $LANGS; do
	rm -rf doc/xml/$l
done
rm -rf doc/pod/

# the rest is specific to emdebian-rootfs - ignore.

# HTML versions, not packaged.
xsltproc -o doc/html/ --nonet \
	http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl \
	doc/xml/emdebian-rootfs.1.xml

for i in `ls doc/html/*.html`; do
	iconv -t utf-8 -f iso8859-1 $i > doc/html/tmp
	sed < doc/html/tmp > $i -e 's:charset=ISO-8859-1:charset=UTF-8:'
done
rm -f doc/html/tmp