Fix all shell-script expansions

Expansions behave weirdly if paths contain special characters.
This commit fixes expansions in all applicable shell-scripts.

Signed-off-by: Harald Seiler <hws@denx.de>

isar-init-build-env

@@ -48,10 +48,10 @@ if [ -z "$ISARROOT" ]; then
 fi
 unset THIS_SCRIPT
 
-ISARROOT=`readlink -f "$ISARROOT"`
+ISARROOT=$(readlink -f "$ISARROOT")
 export ISARROOT
-. $ISARROOT/scripts/isar-buildenv-internal $1 && \
-    TEMPLATECONF="$TEMPLATECONF" $ISARROOT/scripts/isar-setup-builddir || {
+. "$ISARROOT/scripts/isar-buildenv-internal" "$1" && \
+    TEMPLATECONF="$TEMPLATECONF" "$ISARROOT/scripts/isar-setup-builddir" || {
     unset ISARROOT
     return 1
 }

meta-isar/conf/distro/raspbian-configscript.sh

@@ -14,7 +14,7 @@ if [ -f /etc/inittab ]; then
         >> /etc/inittab
 fi
 
-KERNEL_IMAGE=`ls /boot | grep vmlinuz`
+KERNEL_IMAGE="$(find /boot -maxdepth 1 -name "vmlinuz*" -printf "%p\n")"
 
 cat > /boot/config.txt << EOF
 kernel=$KERNEL_IMAGE

meta/recipes-core/isar-bootstrap/files/chroot-setup.sh

@@ -23,7 +23,7 @@ usage() {
 		is prevented.
 
 		Usage:
-		$(basename $0) [command] [parameters]
+		$(basename "$0") [command] [parameters]
 		commands:
 		    setup [target path]    Setup chroot environment
 		    cleanup [target path]  Cleanup chroot environment
@@ -132,9 +132,9 @@ main() {
 
 	case "${CMD}" in
 		"setup")
-			chroot_setup $@;;
+			chroot_setup "$@";;
 		"cleanup")
-			chroot_cleanup $@;;
+			chroot_cleanup "$@";;
 		*)
 			echo "Unknown command '${CMD}'." 1>&2
 			echo 1>&2
@@ -143,4 +143,4 @@ main() {
 	esac
 }
 
-main $@
+main "$@"

meta/recipes-devtools/buildchroot/files/common.sh

@@ -24,7 +24,7 @@ else
 fi
 
 # Go to build directory
-cd $1
+cd "$1"
 
 # To avoid Perl locale warnings:
 export LC_ALL=C

meta/recipes-kernel/linux/files/build-kernel.sh

@@ -48,27 +48,27 @@ fi
 rm -f .version
 KBUILD_DEBARCH=$target_arch make -j $(($(nproc) * 2)) deb-pkg
 
-rm -rf ${REPACK_DIR}
-mkdir -p ${REPACK_DIR}
-mkdir -p ${REPACK_LINUX_IMAGE_DIR}
-mkdir -p ${REPACK_LINUX_HEADERS_DIR}
+rm -rf "${REPACK_DIR}"
+mkdir -p "${REPACK_DIR}"
+mkdir -p "${REPACK_LINUX_IMAGE_DIR}"
+mkdir -p "${REPACK_LINUX_HEADERS_DIR}"
 
-cp -a debian ${REPACK_DIR}
+cp -a debian "${REPACK_DIR}"
 
 # dpkg-gencontrol performs cross-incompatible checks on the
 # Architecture field; trick it to accept the control file
-sed -i "s/Architecture: .*/Architecture: any/" ${REPACK_DIR}/debian/control
+sed -i "s/Architecture: .*/Architecture: any/" "${REPACK_DIR}/debian/control"
 
 cd ..
 
-dpkg-deb -R linux-image-${PV}_${PV}-1_*.deb ${REPACK_LINUX_IMAGE_DIR}
-dpkg-deb -R linux-headers-${PV}_${PV}-1_*.deb ${REPACK_LINUX_HEADERS_DIR}
+dpkg-deb -R linux-image-${PV}_${PV}-1_*.deb "${REPACK_LINUX_IMAGE_DIR}"
+dpkg-deb -R linux-headers-${PV}_${PV}-1_*.deb "${REPACK_LINUX_HEADERS_DIR}"
 
 dpkg-gencontrol -crepack/debian/control \
 	-lrepack/debian/changelog \
 	-frepack/debian/files \
 	-plinux-image-${PV} \
-	-P${REPACK_LINUX_IMAGE_DIR} \
+	-P"${REPACK_LINUX_IMAGE_DIR}" \
 	-DPackage="linux-image-${KERNEL_NAME}" \
 	-DSection=kernel \
 	-DPriority=required \
@@ -76,8 +76,8 @@ dpkg-gencontrol -crepack/debian/control \
 	-DArchitecture=$target_arch
 
 # Add Debian-like link installation to postinst
-touch ${REPACK_LINUX_IMAGE_DIR}/lib/modules/${PV}/.fresh-install
-sed -i ${REPACK_LINUX_IMAGE_DIR}/DEBIAN/postinst \
+touch "${REPACK_LINUX_IMAGE_DIR}/lib/modules/${PV}/.fresh-install"
+sed -i "${REPACK_LINUX_IMAGE_DIR}/DEBIAN/postinst" \
     -e "/^set -e$/a\\
 \\
 if [ -f /lib/modules/${PV}/.fresh-install ]; then\\
@@ -89,7 +89,7 @@ linux-update-symlinks \$change ${PV} /boot/vmlinuz-${PV}\\
 rm -f /lib/modules/${PV}/.fresh-install"
 
 # Add Debian-like link removal to postrm
-sed -i ${REPACK_LINUX_IMAGE_DIR}/DEBIAN/postrm \
+sed -i "${REPACK_LINUX_IMAGE_DIR}/DEBIAN/postrm" \
     -e "/^set -e$/a\\
 \\
 rm -f /lib/modules/${PV}/.fresh-install\\
@@ -100,26 +100,26 @@ fi"
 
 # Make sure arm64 kernels are decompressed
 if [ "$target_arch" = "arm64" ]; then
-	vmlinuz=${REPACK_LINUX_IMAGE_DIR}/boot/vmlinuz-${PV}
-	mv $vmlinuz $vmlinuz.gz
-	gunzip $vmlinuz.gz
+	vmlinuz="${REPACK_LINUX_IMAGE_DIR}/boot/vmlinuz-${PV}"
+	mv "$vmlinuz" "$vmlinuz.gz"
+	gunzip "$vmlinuz.gz"
 fi
 
 dpkg-gencontrol -crepack/debian/control \
 	-lrepack/debian/changelog \
 	-frepack/debian/files \
 	-plinux-headers-${PV} \
-	-P${REPACK_LINUX_HEADERS_DIR} \
+	-P"${REPACK_LINUX_HEADERS_DIR}" \
 	-Vkernel:debarch="${KERNEL_NAME}" \
 	-DPackage="linux-headers-${KERNEL_NAME}" \
 	-DSection=kernel \
 	-DDepends="${KERNEL_HEADERS_DEBIAN_DEPENDS}" \
 	-DArchitecture=$target_arch
 
-fakeroot dpkg-deb -b ${REPACK_LINUX_IMAGE_DIR} \
+fakeroot dpkg-deb -b "${REPACK_LINUX_IMAGE_DIR}" \
 	linux-image-${KERNEL_NAME}_${PV}-1_${KERNEL_NAME}.deb
 rm -f linux-image-${PV}_${PV}-1_*.deb
-fakeroot dpkg-deb -b ${REPACK_LINUX_HEADERS_DIR} \
+fakeroot dpkg-deb -b "${REPACK_LINUX_HEADERS_DIR}" \
 	linux-headers-${KERNEL_NAME}_${PV}-1_${KERNEL_NAME}.deb
 rm -f linux-headers-${PV}_${PV}-1_*.deb
 

meta/recipes-support/enable-fsck/files/enable-fsck.sh

@@ -9,8 +9,8 @@
 
 set -e
 
-ROOT_DEV=$(/bin/findmnt -n -o SOURCE /)
-sed -i -e 's|^/dev/root\([ 	]\+.*[ 	]\+\)0[ 	]\+0|'$ROOT_DEV'\10	1|' \
+ROOT_DEV="$(/bin/findmnt -n -o SOURCE /)"
+sed -i -e 's|^/dev/root\([ 	]\+.*[ 	]\+\)0[ 	]\+0|'"$ROOT_DEV"'\10	1|' \
        -e 's|^\(/dev/.*[ 	]\+\)0[ 	]\+0|\10	2|' /etc/fstab
 
 update-initramfs -u

meta/recipes-support/expand-on-first-boot/files/expand-last-partition.sh

@@ -9,23 +9,23 @@
 
 set -e
 
-ROOT_DEV=$(findmnt / -o source -n)
-BOOT_DEV=$(echo ${ROOT_DEV} | sed 's/p\?[0-9]*$//')
+ROOT_DEV="$(findmnt / -o source -n)"
+BOOT_DEV="$(echo "${ROOT_DEV}" | sed 's/p\?[0-9]*$//')"
 
 if [ "${ROOT_DEV}" = "${BOOT_DEV}" ]; then
 	echo "Boot device equals root device - no partitioning found" >&2
 	exit 1
 fi
 
-LAST_PART=$(sfdisk -d ${BOOT_DEV} 2>/dev/null | tail -1 | cut -d ' ' -f 1)
+LAST_PART="$(sfdisk -d ${BOOT_DEV} 2>/dev/null | tail -1 | cut -d ' ' -f 1)"
 
 # Remove all hints to the current medium (last-lba) and last partition size,
 # then ask sfdisk to recreate the partitioning
-sfdisk -d ${BOOT_DEV} 2>/dev/null | grep -v last-lba | \
-	sed 's|\('${LAST_PART}' .*, \)size=[^,]*, |\1|' | \
-	sfdisk --force ${BOOT_DEV}
+sfdisk -d "${BOOT_DEV}" 2>/dev/null | grep -v last-lba | \
+	sed 's|\('"${LAST_PART}"' .*, \)size=[^,]*, |\1|' | \
+	sfdisk --force "${BOOT_DEV}"
 
 # Inform the kernel about the partitioning change
-partx -u ${LAST_PART}
+partx -u "${LAST_PART}"
 
-resize2fs ${LAST_PART}
+resize2fs "${LAST_PART}"

scripts/ci_build.sh

@@ -13,7 +13,7 @@ ES_BUG=3
 export PATH=$PATH:/sbin
 
 # Go to Isar root
-cd $(dirname $0)/..
+cd "$(dirname "$0")/.."
 
 # Start build in Isar tree by default
 BUILD_DIR=./build
@@ -76,10 +76,10 @@ do
 done
 
 # Setup build folder for the current build
-if [ ! -d $BUILD_DIR ]; then
-        mkdir -p $BUILD_DIR
+if [ ! -d "$BUILD_DIR" ]; then
+        mkdir -p "$BUILD_DIR"
 fi
-source isar-init-build-env $BUILD_DIR
+source isar-init-build-env "$BUILD_DIR"
 
 if [ -n "$CROSS_BUILD" ]; then
     sed -i -e 's/ISAR_CROSS_COMPILE ?= "0"/ISAR_CROSS_COMPILE ?= "1"/g' conf/local.conf
@@ -120,9 +120,9 @@ else
     #multiconfig:qemuarm64-buster:isar-image-base
 fi
 
-cp -a ${ISARROOT}/meta/classes/dpkg-base.bbclass ${ISARROOT}/meta/classes/dpkg-base.bbclass.ci-backup
-echo -e "do_fetch_append() {\n\n}" >> ${ISARROOT}/meta/classes/dpkg-base.bbclass
+cp -a "${ISARROOT}/meta/classes/dpkg-base.bbclass" "${ISARROOT}/meta/classes/dpkg-base.bbclass.ci-backup"
+echo -e "do_fetch_append() {\n\n}" >> "${ISARROOT}/meta/classes/dpkg-base.bbclass"
 
 bitbake $BB_ARGS multiconfig:qemuamd64-stretch:isar-image-base
 
-mv ${ISARROOT}/meta/classes/dpkg-base.bbclass.ci-backup ${ISARROOT}/meta/classes/dpkg-base.bbclass
+mv "${ISARROOT}/meta/classes/dpkg-base.bbclass.ci-backup" "${ISARROOT}/meta/classes/dpkg-base.bbclass"

scripts/mount_chroot.sh

@@ -2,9 +2,9 @@
 
 set -e
 
-mount /tmp     $1/tmp                 -o bind
-mount proc     $1/proc    -t proc     -o nosuid,noexec,nodev
-mount sysfs    $1/sys     -t sysfs    -o nosuid,noexec,nodev
-mount devtmpfs $1/dev     -t devtmpfs -o mode=0755,nosuid
-mount devpts   $1/dev/pts -t devpts   -o gid=5,mode=620
-mount tmpfs    $1/dev/shm -t tmpfs    -o rw,seclabel,nosuid,nodev
+mount /tmp     "$1/tmp"                 -o bind
+mount proc     "$1/proc"    -t proc     -o nosuid,noexec,nodev
+mount sysfs    "$1/sys"     -t sysfs    -o nosuid,noexec,nodev
+mount devtmpfs "$1/dev"     -t devtmpfs -o mode=0755,nosuid
+mount devpts   "$1/dev/pts" -t devpts   -o gid=5,mode=620
+mount tmpfs    "$1/dev/shm" -t tmpfs    -o rw,seclabel,nosuid,nodev

scripts/rpm2cpio.sh

@@ -11,12 +11,12 @@ fatal() {
 }
 
 pkg="$1"
-[ -n "$pkg" -a -e "$pkg" ] ||
+[ -n "$pkg" ] && [ -e "$pkg" ] ||
 	fatal "No package supplied"
 
 _dd() {
 	local o="$1"; shift
-	dd if="$pkg" skip="$o" iflag=skip_bytes status=none $*
+	dd if="$pkg" skip="$o" iflag=skip_bytes status=none "$@"
 }
 
 calcsize() {