#! /bin/sh
#
# Extended Template Library Bootstrap Script
# $Id$
# 
# This script creates the configure script and Makefile.in files,
# and also fixes a few things in both to ensure a smooth build
# on all compilers and platforms.
#

# Grab the current directory and move to our own
CURR_DIR="$(pwd)"
cd "$(dirname $0)"

# Environment Variables
BOOTSTRAP_NAME="$(basename $0)"

CONFIG_DIR="config"

[ -x /bin/cygpath ] && CONFIG_DIR="`cygpath -m -s "$CONFIG_DIR"`"
[ -x /bin/cygpath ] && CONFIG_DIR="`cygpath -u "$CONFIG_DIR"`"
[ -x /bin/cygpath ] && CURR_DIR="`cygpath -m -s "$CURR_DIR"`"
[ -x /bin/cygpath ] && CURR_DIR="`cygpath -u "$CURR_DIR"`"

. "$CONFIG_DIR/build.cfg"

SED_SCRIPT="
s/@PACKAGE@/$PACKAGE/g;
s/@PACKAGE_NAME@/$PACKAGE_NAME/g;
s/@PACKAGE_BUGREPORT@/$PACKAGE_BUGREPORT/g;
s/@PACKAGE_TARNAME@/$PACKAGE_TARNAME/g;
s/@PACKAGE_VERSION@/$PACKAGE_VERSION/g;
s/@VERSION@/$VERSION/g;
s/@VERSION_MAJ@/$VERSION_MAJ/g;
s/@VERSION_MIN@/$VERSION_MIN/g;
s/@VERSION_REV@/$VERSION_REV/g;
s/@VERSION_REL@/$VERSION_REL/g;
s'@SVN_REPOSITORY@'$SVN_REPOSITORY'g;
s/@CFLAGS@//g;
"

# Required automake and autoconf versions
AUTOCONF_VERSION=2.5
AUTOMAKE_VERSION=1.6
LIBTOOL_VERSION=1.4
export WANT_AUTOMAKE=1.6;
export WANT_AUTOCONF_2_5=1;

# Define the output function
output () {
	echo $BOOTSTRAP_NAME: $*
}

# Define the cleanup function
cleanup () {
	output Cleaning up...
	rm -fr config.cache autom4te.cache configure.in $TEMPFILE
}

output Preparing build environment for $PACKAGE-$VERSION...

# Look for the CVS directory. If we don't find it, we need to
# ask the user if they know what they are doing.
( test -d CVS || test -d .svn ) ||
{
	echo "
$BOOTSTRAP_NAME: warning: This shell script is intended for those
$BOOTSTRAP_NAME: warning: who either know what they are doing or
$BOOTSTRAP_NAME: warning: or downloaded this program from the CVS
$BOOTSTRAP_NAME: warning: repository. See README for more details.
$BOOTSTRAP_NAME: warning: To avoid seeing this message in the future,
$BOOTSTRAP_NAME: warning: create an empty directory called 'CVS'."
	echo Waiting for 15 seconds...
	sleep 15
}

# Create the temporary file
output Creating temporary file...
TEMPFILE=`mktemp /tmp/$BOOTSTRAP_NAME.XXXXXX` ||
{
	output ERROR: Unable to create temporary file!
	exit 1
}

# Check for autoconf
(which autoconf > /dev/null 2>&1 ) ||
{
	output error: 'Could not find GNU autoconf!'
	output You need to download and install GNU autoconf v2.52 or higher.
	output '<ftp://ftp.gnu.org/gnu/autoconf>'
	cleanup;
	exit 1
}

# Check autoconf version
output Using $(autoconf --version | grep utoconf)
autoconf --version | grep -q "$AUTOCONF_VERSION" || echo \
"$BOOTSTRAP_NAME: warning: Unexpected version of GNU Autoconf (expected $AUTOCONF_VERSION)
$BOOTSTRAP_NAME: warning: *** Bootstrap process may fail!"

# Check for automake
(which automake > /dev/null 2>&1 ) ||
{
	output error: 'Could not find GNU automake!'
	output You need to download and install GNU automake v1.5 or higher.
	output '<ftp://ftp.gnu.org/gnu/automake>'
	cleanup;
	exit 1
}

# Check automake version
output Using $(automake --version | grep utomake)
automake --version | grep -q "$AUTOMAKE_VERSION" || echo \
"$BOOTSTRAP_NAME: warning: Unexpected version of GNU Automake (expected $AUTOMAKE_VERSION)
$BOOTSTRAP_NAME: warning: *** Bootstrap process may fail!"

for FILENAME in doxygen.cfg pkgconfig.pc project.spec ; do {
output Creating $FILENAME...
sed "$SED_SCRIPT" < "$CONFIG_DIR/$FILENAME.in" > $FILENAME;
} ; done

output Renaming pkgconfig.pc to $PACKAGE_TARNAME.pc.in...
mv pkgconfig.pc "$PACKAGE_TARNAME.pc.in"

output Renaming project.spec to $PACKAGE.spec...
mv project.spec "$PACKAGE.spec"

output Finishing up $PACKAGE.spec...
echo %changelog >> "$PACKAGE.spec"
cat NEWS >> "$PACKAGE.spec"

output Creating configure.in from configure.ac...
sed "$SED_SCRIPT" < "$CONFIG_DIR/configure.ac" > configure.in;

output Generating ChangeLog from SVN
if test x != "x$VERSION_REL" ; then export REVISION="--revision $VERSION_REL" ; fi
test -f ChangeLog || svn2cl --include-rev $REVISION $SVN_REPOSITORY/trunk/ || touch ChangeLog

output Setting up build environment...

# Set the shell to output what we are doing
set -x

# Create all of the build environment files
(
	aclocal -I "$CONFIG_DIR" $ACLOCAL_FLAGS &&
	autoheader &&
	autoconf -o configure &&
	automake --force-missing --add-missing --include-deps 
) ||
{
	# Something went wrong...
	set +x
	echo $BOOTSTRAP_NAME: Failure.
	cleanup;
	exit 1
}

# Turn off echoing of commands
set +x

#output Patching configure script to look for gcc3...
#sed "
#s/g++ c++/g++3 g++ c++/;
#s/gcc cc/gcc3 gcc cc/;
#s:PREFIX/include:PREFIX/include/ETL:;
#" < configure > $TEMPFILE
#cp $TEMPFILE configure

# Patch the Makefile.am files
for filename in $(find Makefile.in ETL test -name Makefile.in) ; do {
	echo $BOOTSTRAP_NAME: Patching $filename
	(
		cp $filename $TEMPFILE &&
		sed "
			s;-I. ;;
			s;-I"'$(srcdir)'" ;-I"'$(top_srcdir)'" ;
			s;configure.in;config/configure.ac;
		" < $TEMPFILE > $filename
	) ||
	{
		# Patch failure
		echo $BOOTSTRAP_NAME: Failure. Unable to patch $filename.
		cleanup;
		exit 1
	}
}; done

echo $BOOTSTRAP_NAME: Creating Makefile...
( echo "
all:
	./configure --enable-maintainer-mode
	make all
	
install:
	./configure --enable-maintainer-mode
	make install
	
check:
	./configure --enable-maintainer-mode
	make check

distcheck:
	./configure --enable-maintainer-mode
	make check
	
dist:
	./configure --enable-maintainer-mode
	make dist

docs: doxygen.cfg
	doxygen doxygen.cfg
" ) > Makefile

echo $BOOTSTRAP_NAME: Complete.

cleanup;

# Move back to the current directory
cd "$CURR_DIR"