Use a build script in CI and for local testing

.github/workflows/build-examples.yaml

@@ -38,6 +38,4 @@ jobs:
 
     - name: "Build Erlang Example Programs"
       run: |
-        REBAR="/tmp/rebar3/rebar3"
-        EXAMPLES="arepl_example blinky esp_nvs deep_sleep gpio_interrupt i2c_example hello_world ledc_example read_priv spi_example system_info tcp_client tcp_server uart_example udp_client udp_server wifi"
-        for i in ${EXAMPLES}; do cd ./erlang/$i; ${REBAR} fmt -c || exit 1; ${REBAR} packbeam -p -f -i || exit 1; cd ../..; done
+        PATH=/tmp/rebar3:$PATH ./build.sh

build.sh

@@ -0,0 +1,31 @@
+#!/bin/sh
+#
+# This file is part of AtomVM.
+#
+# Copyright 2023 Fred Dushin <fred@dushin.net>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0 OR LGPL-2.1-or-later
+#
+
+REBAR="rebar3"
+cd erlang
+ERLANG_EXAMPLES="$(/bin/ls | grep -v README.md)"
+for i in ${ERLANG_EXAMPLES}; do
+	cd $i
+	rm -rf _build
+	${REBAR} atomvm packbeam -l || exit 1
+	${REBAR} as check fmt -c || exit 1
+	cd ..
+done