Introduce namespace option in builder.sh

Added namespace option to builder.sh script overrides namespace of image
tag in build.yaml

Author: eshattow

builder.sh

@@ -7,6 +7,7 @@ set +u
 
 #### Variable ####
 
+NAMESPACE=
 DOCKER_TIMEOUT=20
 DOCKER_PID=-1
 DOCKER_HUB=
@@ -118,6 +119,8 @@ Options:
        Use same tag as cache tag instead latest.
     --cache-tag <TAG>
        Use a custom tag for the build cache.
+    -n, --namespace <NAMESPACE>
+       Set or overwrite name of personal account or organization to build from.
     -d, --docker-hub <DOCKER_REPOSITORY>
        Set or overwrite the docker repository.
     --docker-hub-check
@@ -446,6 +449,9 @@ function build_base() {
     args="$(jq --raw-output '.args // empty | keys[]' "/tmp/build_config/build.json")"
     labels="$(jq --raw-output '.labels // empty | keys[]' "/tmp/build_config/build.json")"
     raw_image="$(jq --raw-output '.image // empty' "/tmp/build_config/build.json")"
+    if bashio::var.has_value "${NAMESPACE}"; then
+        raw_image="${raw_image%%/*}/${NAMESPACE}/${build_from##*/}"
+    fi
     shadow_repository="$(jq --raw-output '.shadow_repository // empty' "/tmp/build_config/build.json")"
 
     # Set defaults build things
@@ -556,6 +562,9 @@ function build_addon() {
     description="$(jq --raw-output '.description // empty' "/tmp/build_config/config.json" | sed "s/'//g")"
     url="$(jq --raw-output '.url // empty' "/tmp/build_config/config.json")"
     raw_image="$(jq --raw-output '.image // empty' "/tmp/build_config/config.json")"
+    if bashio::var.has_value "${NAMESPACE}"; then
+        raw_image="${raw_image%%/*}/${NAMESPACE}/${build_from##*/}"
+    fi
     mapfile -t supported_arch < <(jq --raw-output '.arch // empty' "/tmp/build_config/config.json")
 
     # Read version from config.json when VERSION is not set
@@ -614,6 +623,9 @@ function build_generic() {
     args="$(jq --raw-output '.args // empty | keys[]' "/tmp/build_config/build.json")"
     labels="$(jq --raw-output '.labels // empty | keys[]' "/tmp/build_config/build.json")"
     raw_image="$(jq --raw-output '.image // empty' "/tmp/build_config/build.json")"
+    if bashio::var.has_value "${NAMESPACE}"; then
+        raw_image="${raw_image%%/*}/${NAMESPACE}/${build_from##*/}"
+    fi
     shadow_repository="$(jq --raw-output '.shadow_repository // empty' "/tmp/build_config/build.json")"
 
     # Set defaults build things
@@ -675,6 +687,9 @@ function build_machine() {
     args="$(jq --raw-output '.args // empty | keys[]' "/tmp/build_config/build.json")"
     labels="$(jq --raw-output '.labels // empty | keys[]' "/tmp/build_config/build.json")"
     raw_image="$(jq --raw-output '.image // empty' "/tmp/build_config/build.json")"
+    if bashio::var.has_value "${NAMESPACE}"; then
+        raw_image="${raw_image%%/*}/${NAMESPACE}/${build_from##*/}"
+    fi
     shadow_repository="$(jq --raw-output '.shadow_repository // empty' "/tmp/build_config/build.json")"
 
     # Modify build_from
@@ -906,6 +921,10 @@ while [[ $# -gt 0 ]]; do
             VERSION_FROM=$2
             shift
             ;;
+        -n|--namespace)
+            NAMESPACE=$2
+            shift
+            ;;
         --docker-hub-check)
             DOCKER_HUB_CHECK=true
             ;;