Fix soong scripts to support directories with spaces

Using a path with a space to execute soong is unlikely, but it
might as well work.  Quote all the paths in the soong scripts.

Soong and blueprint will still both fail if the relative path between
the soong script and the source directory has a space in it, but this
is even more unlikely.

Change-Id: I8986f10115209d69b09b82ffea26e4b10d29c197

bootstrap.bash

@@ -27,8 +27,8 @@ fi
 if [[ $# -eq 0 ]]; then
     sed -e "s|@@SrcDir@@|${SRCDIR}|" \
         -e "s|@@PrebuiltOS@@|${PREBUILTOS}|" \
-        ${SRCDIR}/build/soong/soong.bootstrap.in > .soong.bootstrap
-    ln -sf ${SRCDIR}/build/soong/soong.bash soong
+        "${SRCDIR}/build/soong/soong.bootstrap.in" > .soong.bootstrap
+    ln -sf "${SRCDIR}/build/soong/soong.bash" soong
 fi
 
-${SRCDIR}/build/blueprint/bootstrap.bash "$@"
+"${SRCDIR}/build/blueprint/bootstrap.bash" "$@"

soong.bash

@@ -3,24 +3,24 @@
 # Determine the build directory location based on the location of this script.
 BPBUILD="${BASH_SOURCE[0]}"
 BUILDDIR=`dirname "${BASH_SOURCE[0]}"`
-BOOTSTRAP=${BUILDDIR}/.soong.bootstrap
+BOOTSTRAP="${BUILDDIR}/.soong.bootstrap"
 
 # The source directory path and operating system will get written to
 # .soong.bootstrap by the bootstrap script.
 
-if [ ! -f ${BOOTSTRAP} ]; then
+if [ ! -f "${BOOTSTRAP}" ]; then
     echo "Error: soong script must be located in a directory created by bootstrap.bash"
     exit 1
 fi
 
-source ${BOOTSTRAP}
+source "${BOOTSTRAP}"
 
 if [[ ${SRCDIR_IN:0:1} == '/' ]]; then
     # SRCDIR_IN is an absolute path
-    SRCDIR=${SRCDIR_IN}
+    SRCDIR="${SRCDIR_IN}"
 else
     # SRCDIR_IN is a relative path
-    SRCDIR=${BUILDDIR}/${SRCDIR_IN}
+    SRCDIR="${BUILDDIR}/${SRCDIR_IN}"
 fi
 
 # Let Blueprint know that the Ninja we're using performs multiple passes that
@@ -30,18 +30,18 @@ export BLUEPRINT_NINJA_HAS_MULTIPASS=1
 # Ninja can't depend on environment variables, so do a manual comparison
 # of the relevant environment variables from the last build using the
 # soong_env tool and trigger a build manifest regeneration if necessary
-ENVFILE=${BUILDDIR}/.soong.environment
-ENVTOOL=${BUILDDIR}/.bootstrap/bin/soong_env
-if [ -f ${ENVFILE} ]; then
-    if [ -x ${ENVTOOL} ]; then
-        if ! ${ENVTOOL} ${ENVFILE}; then
+ENVFILE="${BUILDDIR}/.soong.environment"
+ENVTOOL="${BUILDDIR}/.bootstrap/bin/soong_env"
+if [ -f "${ENVFILE}" ]; then
+    if [ -x "${ENVTOOL}" ]; then
+        if ! "${ENVTOOL}" "${ENVFILE}"; then
             echo "forcing build manifest regeneration"
-            rm -f ${ENVFILE}
+            rm -f "${ENVFILE}"
         fi
     else
         echo "Missing soong_env tool, forcing build manifest regeneration"
-        rm -f ${ENVFILE}
+        rm -f "${ENVFILE}"
     fi
 fi
 
-${SRCDIR}/prebuilts/ninja/${PREBUILTOS}/ninja -C ${BUILDDIR} "$@"
+"${SRCDIR}/prebuilts/ninja/${PREBUILTOS}/ninja" -C "${BUILDDIR}" "$@"

soong.bootstrap.in

@@ -1,2 +1,2 @@
-SRCDIR_IN=@@SrcDir@@
-PREBUILTOS=@@PrebuiltOS@@
+SRCDIR_IN="@@SrcDir@@"
+PREBUILTOS="@@PrebuiltOS@@"