porting/update_generated_files: Add comments stripping and prepend li…

…cense header

The script modifying 'syscfg.h' files for ports will now
remove all block comments and add the license header

.github/LICENSE_TEMPLATE

@@ -0,0 +1,18 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.
+ */

porting/update_generated_files.sh

@@ -37,9 +37,10 @@ for target in "${!targets[@]}"; do
  rm -rf "bin/@apache-mynewt-nimble/porting/targets/${target}/generated/include/logcfg"
  rm -rf "bin/@apache-mynewt-nimble/porting/targets/${target}/generated/include/sysflash"
  cp "bin/@apache-mynewt-nimble/porting/targets/${target}/generated/include" "${targets[$target]}" -r
- # Remove repo version and hash MYNEWT_VALS as it doesn't make much sense to commit them and they
- # defeat the purpose of this script.
+ # Remove all comments and hash MYNEWT_VALS as it doesn't make much sense to commit them and they
+ # defeat the purpose of this script. Prepend the license header.
  find "${targets[$target]}/include" -type f -name 'syscfg.h' -exec sed -i '/MYNEWT_VAL_REPO_*/,/#endif/d' {} \;
- find "${targets[$target]}/include" -type f -name 'syscfg.h' -exec sed -i '/\/\*\*\* Repository/,/\*\//d' {} \;
+ find "${targets[$target]}/include" -type f -name 'syscfg.h' -exec sed -i -E ':a;N;$!ba;s:/\*([^*]|(\*+([^*/])))*\*+/::g' {} \;
  find "${targets[$target]}/include" -type f -name 'syscfg.h' -exec sed -i '$!N;/^\n$/{$q;D;};P;D;' {} \;
+ find "${targets[$target]}/include" -type f -name 'syscfg.h' -exec sh -c 'cat "$0" "$1" > "$1.tmp" && mv "$1.tmp" "$1"' "../.github/LICENSE_TEMPLATE" {} \;
 done