#!/bin/sh

CUR=`pwd`

# Build and install Python support files
cd src/
python setup.py build

if [ $? -ne 0 ]; then
    echo "Failure to build sage-mode Python support files"
    exit 1
fi

python setup.py install

if [ $? -ne 0 ]; then
    echo "Failure to install sage-mode Python support files"
    exit 1
fi

# Copy emacs lisp to SAGE_DATA, and print helpful instructions
cd "$CUR"
if [ "x$SAGE_DATA" = x ]; then
    INSTALL_DIR=$SAGE_LOCAL/share/emacs/site-lisp/sage-mode
    # Create intermediate directories
    mkdir -p $INSTALL_DIR
else
    INSTALL_DIR=$SAGE_DATA/emacs
fi
rm -rf $INSTALL_DIR
cp -r emacs $INSTALL_DIR

# Remove old elc files if any.
# Then, even if byte compiling fails, they won't taint the setup.
rm -f $INSTALL_DIR/*.elc

# Byte compile -- this can fail since we don't require emacs for Sage
EMACS=${EMACS-emacs}
$EMACS -batch 2> /dev/null > /dev/null
if [ $? -ne 0 ]; then
    echo
    echo WARNING: Could not find emacs at "'$EMACS'"
    echo "Set the EMACS environment variable or ignore this if you don't have emacs installed"

else

    echo Byte compiling sage-mode with "'$EMACS'"
    echo Set the EMACS environment variable to compile with a different emacs.
    $EMACS -batch -L $INSTALL_DIR/ -f batch-byte-compile $INSTALL_DIR/*.el

    # Extract and print the .emacs portion of SPKG.txt
    export INSTALL_DIR
    perl -ne 'if (/Start .emacs/../End .emacs/) { s/\$(\w+)/$ENV{$1}/; print; }' SPKG.txt

fi