=doc add new script to output commits since last version by submodule

RELEASING.md

@@ -1,9 +1,11 @@
 ## Releasing
 
-1. Create a [new release](https://github.com/akka/akka-http/releases/new) with the next tag version (e.g. `v13.3.7`), title and release description including notable changes mentioning external contributors.
-2. Travis CI will start a [CI build](https://travis-ci.org/akka/akka-http/builds) for the new tag and publish artifacts to Bintray and will sync them to Maven Central.
-3. Checkout the newly created tag and run `sbt -Dakka.genjavadoc.enabled=true "++2.12.0 deployRsync repo.akka.io"` to deploy API and reference documentation.
-4. Add the released version to `project/MiMa.scala` to the `mimaPreviousArtifacts` key.
+1. Add a release notes entry in docs/src/main/paradox/release-notes.md. As a helper run
+`scripts/commits-for-release-notes.sh <last-version-tag>` which will output a list of commits grouped by submodule.
+2. Create a [new release](https://github.com/akka/akka-http/releases/new) with the next tag version (e.g. `v13.3.7`), title and release description including notable changes mentioning external contributors.
+3. Travis CI will start a [CI build](https://travis-ci.org/akka/akka-http/builds) for the new tag and publish artifacts to Bintray and will sync them to Maven Central.
+4. Checkout the newly created tag and run `sbt -Dakka.genjavadoc.enabled=true "++2.12.0 deployRsync repo.akka.io"` to deploy API and reference documentation.
+5. Add the released version to `project/MiMa.scala` to the `mimaPreviousArtifacts` key.
 
 ### Under the Travis hood
 

scripts/commits-for-release-notes.sh

@@ -0,0 +1,42 @@
+#!/bin/sh
+
+set -e
+
+ROOT_DIR=$(dirname $(readlink -f $0))/..
+
+LAST_VERSION=$1
+
+echo "Changes in akka-http-core"
+echo
+git log --no-merges --oneline ${LAST_VERSION}.. -- $ROOT_DIR/akka-http-core
+
+echo
+echo "Changes in akka-http"
+echo
+git log --no-merges --oneline ${LAST_VERSION}.. -- $ROOT_DIR/akka-http
+
+echo
+echo "Changes in akka-http-marshallers"
+echo
+git log --no-merges --oneline ${LAST_VERSION}.. -- $ROOT_DIR/akka-http-marshallers*
+
+echo
+echo "Changes in akka-http-testkit"
+echo
+git log --no-merges --oneline ${LAST_VERSION}.. -- $ROOT_DIR/akka-http-testkit
+
+echo
+echo "Changes in docs"
+echo
+git log --no-merges --oneline ${LAST_VERSION}.. -- $ROOT_DIR/docs
+
+echo
+echo "Changes in akka-http2-support"
+echo
+git log --no-merges --oneline ${LAST_VERSION}.. -- $ROOT_DIR/akka-http2-support
+
+echo
+echo "Changes in build"
+echo
+git log --no-merges --oneline ${LAST_VERSION}.. -- $ROOT_DIR/project $ROOT_DIR/*.sbt
+