Fix storage location of Docker images and containers for Mac or linux (…

…project-chip#21046)

* Fix storage location of Docker images and containers for osx or linux
This will fix information about used memory space when build image of docker on osx host machine. Docker has another directory on linux and osx.

* Fixed styling problem

* Improved system checking and path mapping for docker volume

integrations/docker/build.sh

@@ -33,6 +33,12 @@ IMAGE=${DOCKER_BUILD_IMAGE:-$(basename "$(pwd)")}
 # version
 VERSION=${DOCKER_BUILD_VERSION:-$(sed 's/ .*//' version)}
 
+if [[ $OSTYPE == 'darwin'* ]]; then
+    DOCKER_VOLUME_PATH=~/Library/Containers/com.docker.docker/Data/vms/0/
+else
+    DOCKER_VOLUME_PATH=/var/lib/docker/
+fi
+
 [[ ${*/--help//} != "${*}" ]] && {
     set +x
     echo "Usage: $me <OPTIONS>
@@ -59,7 +65,7 @@ set -ex
 
 [[ -n $VERSION ]] || die "version cannot be empty"
 
-mb_space_before=$(df -m /var/lib/docker/ | awk 'FNR==2{print $3}')
+mb_space_before=$(df -m "$DOCKER_VOLUME_PATH" | awk 'FNR==2{print $3}')
 
 # go find and build any CHIP images this image is "FROM"
 awk -F/ '/^FROM connectedhomeip/ {print $2}' Dockerfile | while read -r dep; do
@@ -92,8 +98,9 @@ docker image prune --force
 }
 
 docker images --filter=reference="$ORG/*"
-df -h /var/lib/docker/
-mb_space_after=$(df -m /var/lib/docker/ | awk 'FNR==2{print $3}')
+df -h "$DOCKER_VOLUME_PATH"
+mb_space_after=$(df -m "$DOCKER_VOLUME_PATH" | awk 'FNR==2{print $3}')
+
 printf "%'.f MB total used\n" "$((mb_space_before - mb_space_after))"
 
 exit 0