buildroot

#!/bin/sh

#

if [ "$#" -ne 0 ]; then

    echo "Run this script to relocate the buildroot SDK at that location"

    exit 1

fi

​

LOCFILE="share/buildroot/sdk-location"

FILEPATH="$(readlink -f "$0")"

NEWPATH="$(dirname "${FILEPATH}")"

​

cd "${NEWPATH}"

if [ ! -r "${LOCFILE}" ]; then

    echo "Previous location of the buildroot SDK not found!"

    exit 1

fi

OLDPATH="$(cat "${LOCFILE}")"

​

if [ "${NEWPATH}" = "${OLDPATH}" ]; then

    echo "This buildroot SDK has already been relocated!"

    exit 0

fi

​

# Check if the path substitution does work properly, e.g.  a tree

# "/a/b/c" copied into "/a/b/c/a/b/c/" would not be allowed.

newpath="$(sed -e "s|${OLDPATH}|${NEWPATH}|g" "${LOCFILE}")"

if [ "${NEWPATH}" != "${newpath}" ]; then

    echo "Something went wrong with substituting the path!"

    echo "Please choose another location for your SDK!"

    exit 1

fi

​

echo "Relocating the buildroot SDK from ${OLDPATH} to ${NEWPATH} ..."

​

# Make sure file uses the right language

export LC_ALL=C

# Replace the old path with the new one in all text files

grep -lr "${OLDPATH}" . | while read -r FILE ; do

    if file -b --mime-type "${FILE}" | grep -q '^text/' && [ "${FILE}" != "${LOCFILE}" ]

    then

        sed -i "s|${OLDPATH}|${NEWPATH}|g" "${FILE}"

    fi

done

​

# At the very end, we update the location file to not break the

# SDK if this script gets interruted.

sed -i "s|${OLDPATH}|${NEWPATH}|g" ${LOCFILE}