Added scripts/build.sh (missed with last xe-solutions update)

Signed-off-by: James P. Ketrenos <james.p.ketrenos@intel.com>

scripts/build.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# Bring in the variables from SOLUTION file, supporting
+# nested substitution
+. SOLUTION
+
+function fail {
+  >&2 echo "$*"
+  exit -1
+}
+
+case "${OS_DISTRO}" in
+  rhel)
+    SOLUTION_SUFFIX=".rhel-8.0"
+    ;;
+  ubuntu)
+    SOLUTION_SUFFIX=""
+    ;;
+  *)
+    SOLUTION_SUFFIX=".${OS_DISTRO}-${OS_RELEASE}"
+    [[ -d "templates/${OS_DISTRO}" ]] || {
+      echo "Unrecognized OS_DISTRO: '${OS_DISTRO}'"
+      exit -1
+    }
+    [[ ! -e "Dockerfile.solution.${SOLUTION_SUFFIX}" ]] && {
+      SOLUTION_SUFFIX=""
+    }
+    ;;
+esac
+
+[[ ! -e "Dockerfile${SOLUTION_SUFFIX}" ]] && {
+  cat << EOF
+'${OS_DISTRO}' set as OS_DISTRO, but Dockerfile${SOLUTION_SUFFIX} does
+not exist.
+
+Using Dockerfile instead.
+EOF
+
+  SOLUTION_SUFFIX=""
+}
+
+export DOCKERFILE="Dockerfile${SOLUTION_SUFFIX}"
+export SOLUTION="Dockerfile.solution${SOLUTION_SUFFIX}"
+
+[[ "${SOLUTION}" -nt "${DOCKERFILE}" ]] && {
+  echo "${SOLUTION} is newer than ${DOCKERFILE}. Running scripts/build-dockerfile.sh"
+  scripts/build-dockerfile.sh || fail "Unable to update ${DOCKERFILE}"
+}
+
+scripts/build-image.sh || fail "Unable to build ${DOCKERFILE}"