#! /bin/sh
#
# build_html.sh - Command line utility for auto-building HTML-pages
# Copyright (C) 2003 Tommi Saviranta <tsaviran@cs.helsinki.fi>
#
# 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 2
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
#
# Version: build_html.sh v0.1.3  16-Nov-2003  tsaviran@cs.helsinki.fi


# How to use (no spellcheking, no sanity-checking):
#
# FILES define which files (separated by white spaces) are to be generated
#	source files must be names _FOOBAR where FOOBAR is name in FILES
#	target files will be named FOOBAR.html
# Note: If filename contains a slash like FOO/_BAR, target file will be
#	called FOO/BAR.html and FOO/_BAR will be used to generate it. This is
#	different from format where filename "FOO" will build FOO.html while
#	_FOO is used to generate it.
#
# source files must contain following lines:
#	":: TITLE=<title>"
#	":: KEYWORDS=<keywords>"
#	":: DESCRIPTION=<description>"
# where <title> is page title etc.
# All other lines beginning with "::" are stripped out from target files
#
# Default keywords can be defined in DEFKEYS
#
# Finally, generated files begin with contents of file header.html followed
# by contents of _FOOBAR, ending with footer.html.
#
# Good luck. ;-)


# In this example I have used "find" to list some files
FILES=$(find . -name '_*')
# ..but files could be defined just by saying FILES="foo bar"

DEFKEYS=""



for FILE in $FILES; do
	echo "$FILE"
	T="_$FILE"
	SFILE=$(echo $T | sed -e 's/_\(.*\)\/_\(.*\)/\1\/_\2/')
	TITLE=$(grep ':: TITLE' $SFILE | sed -e 's/.*=\(.*\)/\1/')
	KEYWORDS=$(grep ':: KEYWORDS' $SFILE | sed -e 's/.*=\(.*\)/\1/')
	DESCRIPTION=$(grep ':: DESCRIPTION' $SFILE | sed -e 's/.*=\(.*\)/\1/')

	KEYWORDS="$DEFKEYS $KEYWORDS"

	HEADERTITLE=$(echo "::: $TITLE" | sed -e 's/\//\\\//')
	TITLE=$(echo "$TITLE" | sed -e 's/\//\\\//')
	KEYWORDS=$(echo "$KEYWORDS" | sed -e 's/\//\\\//')
	DESCRIPTION=$(echo "$DESCRIPTION" | sed -e 's/\//\\\//')
	
	test -f _tmp_ && rm -f _tmp_
	sed -e "s/HEADERTITLE/$HEADERTITLE/; s/KEYWORDS/$KEYWORDS/; s/DESCRIPTION/$DESCRIPTION/; s/TITLE/$TITLE/" <header.html >_tmp_
	grep -v '^::' "$SFILE" >>_tmp_
	
	TARGET="$FILE.html"
	TARGET=$(echo $TARGET | sed -e 's/\(.*\)\/_\(.*\.html\)/\1\/\2/')
	cat _tmp_ footer.html >"$TARGET"
	chmod 644 "$TARGET"
	rm -f _tmp_
done