#!/bin/bash
# lw-build-system/scripts/module-create.sh
#
#  (c)2006, Laurence Withers, <l@lwithers.me.uk>.
#  Released under the GNU GPLv2. See file COPYING or
#  http://www.gnu.org/copyleft/gpl.html for details.
#

# Creates a new source module.

# save a copy of the commandline for the upgrade script
MODULE_PARAMS="$@"



# Get the directory of the repository (needed to include functions file)
cd $(dirname $0)
cd $(dirname $(pwd))
P=$(basename $(pwd))
TOP=$(pwd)
[ -z "${VERBOSE}" ] && VERBOSE="0"
source scripts/functions.sh || exit 1



# Get arguments.
if [ $# -lt 3 ]
then
    echo "Usage: scripts/module-create.sh <lang> <type> <name> [args]"
    echo "  available modules:"
    for i in scripts/build.*
    do
        echo $i | sed "s,scripts/build\.\([^.]*\)\.\(.*\),    lang: \1	type: \2,"
    done
    exit 1
fi
LANG=$1
shift
TYPE=$1
shift
NAME=$1
shift
TEMPLATE=scripts/build.${LANG}.${TYPE}

if [ ! -e ${TEMPLATE}/instantiate ]
then
    echo "No such module type."
    exit 1
fi



# function to rename a package to a bash/C identifier
get_cname() {
    echo $1 | tr +- p_
}



# function used to replace variables
#   assumes that we're in the directory to replace files in
#   for each argument X, it will replace @X@ with ${X}
do_parameter_subst() {
    CNAME=$(get_cname ${NAME})
    do_cmd source ~/.lwbuildrc || exit 1
    for param in P NAME CNAME AUTHOR EMAIL VIM_MODELINE KATE_MODELINE $@
    do
        do_cmd_redir sedscript echo "s,@${param}@,${!param},g" || exit 1
    done
    do_cmd find . -type f -a -not -name sedscript -exec sed -f sedscript -i {} \; || exit 1
    do_cmd rm sedscript || exit 1
}



if [ -e "src/${NAME}" ]
then
    print_failure "Module 'src/${NAME}' already exists"
    exit 1
fi

cleanup() {
    cd ${TOP}
    rm -rf "src/${NAME}"
    print_failure "Removed 'src/${NAME}'"
    exit 1
}

echo "Instantiating module 'src/${NAME}'..."
do_cmd cp -rL ${TEMPLATE} src/${NAME} || cleanup
do_cmd cd src/${NAME} || cleanup
do_cmd rm instantiate || cleanup
do_cmd_redir .params echo "${MODULE_PARAMS}" || cleanup

( source ../../${TEMPLATE}/instantiate ) || cleanup

print_success "Module instantiated"
grep -r "@TODO@" .
true

# kate: replace-trailing-space-save true; space-indent true; tab-width 4;
# vim: expandtab:ts=4:sw=4