#!/bin/bash

# Create a symbolic link to a package that is located in another stage
# repository (to not have the same file twice).
# Arg. #1: Source stage number (1, 2, 3, etc)
# Arg. #2: Package name
lpkg()
{
    SRCSTAGE="stage${1}"
    PACKAGE_NAME="${2}"

    # Checking for correct number of arguments
    if [ $# -ne 2 ]; then
	echo "${FUNCNAME}(), wrong number of arguments: ${*}"
	return 1
    fi

    # Check first if the package exists in the source directory, and what is
    # its extension.
    unset LPKG_EXT
    for arch_ext in ${DEFAULT_ARCH_EXT_LIST}; do
        if [ -f ${LFS_PKG_BASE}/${SRCSTAGE}/${PACKAGE_NAME}.${arch_ext} ]; then
            LPKG_EXT=${arch_ext}
        fi
    done

    MSG="Linking ${PACKAGE_NAME}"

    if [ -z "${LPKG_EXT}" ]; then
        MSGSTRING="${MSG}" print_status warning
    else
        FILE="${PACKAGE_NAME}.${LPKG_EXT}"

        if [ ! -h ${LFS_PKG_DIR}/${FILE} ]; then

	# Create link if it doesn't exist
	    rcmd "${MSG}" ln -s ../${SRCSTAGE}/${FILE} ${LFS_PKG_DIR}/${FILE}
        fi
    fi

    # Create link for patches corresponding to that package:
    if ls ${LFS_PKG_BASE}/${SRCSTAGE}/${PACKAGE_NAME}-*.patch \
        1> /dev/null 2>&1; then
	for patch in ${LFS_PKG_BASE}/${SRCSTAGE}/${PACKAGE_NAME}-*.patch; do
	    PATCHFILE=$(basename ${patch})
	    if [ ! -h ${LFS_PKG_DIR}/${PATCHFILE} ]; then
		# Create link if it doesn't exist
		rcmd "Linking ${PATCHFILE}" ln -s ../${SRCSTAGE}/${PATCHFILE} \
                    ${LFS_PKG_DIR}/${PATCHFILE}
	    fi
	done
    fi
}