Changes as requested by @cimnine

build.sh

@@ -317,12 +317,11 @@ fi
 if [ "${SHOULD_BUILD}" != "true" ]; then
   echo "Build skipped because sources didn't change"
   echo "::set-output name=skipped::true"
-  gh_echo "::endgroup::"
   exit 0 # Nothing to do -> exit
 else
-  gh_echo "::endgroup::"
   gh_echo "::set-output name=skipped::false"
 fi
+gh_echo "::endgroup::"
 
 ###
 # Build the image
@@ -346,12 +345,12 @@ DOCKER_BUILD_ARGS+=(
   --label "org.opencontainers.image.created=${BUILD_DATE}"
   --label "org.opencontainers.image.version=${PROJECT_VERSION}"
 )
-if [ -d ".git" ]; then
+if [ -d ".git" ] && [ -z "${SKIP_GIT}" ]; then
   DOCKER_BUILD_ARGS+=(
     --label "org.opencontainers.image.revision=${GIT_REF}"
   )
 fi
-if [ -d "${NETBOX_PATH}/.git" ]; then
+if [ -d "${NETBOX_PATH}/.git" ] && [ -z "${SKIP_GIT}" ]; then
   DOCKER_BUILD_ARGS+=(
     --label "netbox.git-branch=${NETBOX_GIT_BRANCH}"
     --label "netbox.git-ref=${NETBOX_GIT_REF}"