#!/bin/sh
# Copyright (c) 2001 Wolfram Schneider <wosch@FreeBSD.org>
# Copyright (c) 2001 Dima Dorfman <dd@FreeBSD.org>
#
# Update the FreeBSD web site from the CVS repository.
#
#
# Major variables:
#
#	PATH		- The search path as interpreted by the shell.
#	CVSROOT		- Path to the FreeBSD CVS repository.
#	BUILDDIR	- Where the checked out copies of the files are stored.
#	DESTDIR		- Where the rendered copies should wind up.
#	LOGFILE		- Name of the log file to use (in $BUILDDIR).
#	BUILDARGS	- Arguments to pass to make(1) when building.
#	INSTARGS	- Arguments to pass to make(1) when installing.
#
#	subtrees	- List of directores in $BUILDDIR which are from CVS.
#
# Variables which are in uppercase are derived from the environment
# unless they don't exist, in which case a value suitable for
# www.FreeBSD.org is used.  Variables in lowercase can't be safely
# changed without editing other parts of the script; thus, their value
# in the environment is ignored.
#
# Exit codes:
#
#	0	- success
#	1	- unknown failure
#	2	- failure in CVS operations
#	3	- failure in make operations
#
# $FreeBSD: www/tools/webupdate,v 1.2 2001/06/14 04:13:24 dd Exp $
#

#
# Default configuration.
#
DEFAULT_PATH=/bin:/usr/bin:/usr/local/bin;
DEFAULT_CVSROOT=/home/ncvs;
DEFAULT_BUILDDIR=/usr/local/www/build;
DEFAULT_DESTDIR=/usr/local/www;
DEFAULT_LOGFILE=log.webbuild.`date '+%d'`;
DEFAULT_BUILDARGS='';
DEFAULT_INSTARGS='';

#
# Variable setup.
#
PATH=${PATH:-${DEFAULT_PATH}}; export PATH;
CVSROOT=${CVSROOT:-${DEFAULT_CVSROOT}}; export CVSROOT;
BUILDDIR=${BUILDDIR:-${DEFAULT_BUILDDIR}};
DESTDIR=${DESTDIR:-${DEFAULT_DESTDIR}};
LOGFILE=${LOGFILE:-${BUILDDIR}/${DEFAULT_LOGFILE}};
BUILDARGS=${BUILDARGS:-${DEFAULT_BUILDARGS}};
INSTARGS=${INSTARGS:-${DEFAULT_INSTARGS}};

subtrees='www doc';

#
# Update the checked out copies.  Check out new copies every Sunday or
# if they don't exist.
#

# Only create $BUILDDIR if the directory right above it exists.
cd `dirname $BUILDDIR` || exit 1;
if [ ! -d $BUILDDIR ]; then
	mkdir $BUILDDIR;
fi
cd $BUILDDIR || exit 1;

rm -f $LOGFILE 2>/dev/null;
touch $LOGFILE;

# XXX If one of the directories in $subtrees doesn't exist, *all* of
# them will be wiped and checked out again.  This should only happen
# if something went terribly wrong, or if there's a new entry in
# $subtrees, so I (dd) don't plan on fixing it; there's no sense in
# optimizing something that should only happen twice a year (if that).
cond="X`date '+%u'` = X7 `echo $subtrees | sed -E 's/([^ ]*)/-o ! -d \1/g'`";
if [ $cond ]; then
	# Remove the old copies.
	rm -Rf $subtrees 2>/dev/null;
	chflags -R noschg $modules 2>/dev/null;
	rm -Rf $subtrees 2>/dev/null;

	# Check out the new copies.  This creates all the $subtrees.
	cvs -qR checkout -P www >> $LOGFILE 2>&1 || exit 2;
	cvs -qR checkout -P doc >> $LOGFILE 2>&1 || exit 2;
else
	cvs -qR update -dP $subtrees >> $LOGFILE 2>&1 || exit 2;
fi

#
# Build the web site.
#
cd $BUILDDIR/www/en || exit 1;

time make ${BUILDARGS} all >> $LOGFILE 2>&1 &&
    time make ${INSTARGS} DESTDIR=$DESTDIR install >> $LOGFILE 2>&1 ||
	(tail -50 $LOGFILE && exit 3);


exit 0;