chore: add script and workflow for releases

.get_latest_changes_for_release_notes.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+CHANGELOG="CHANGELOG.md"
+NEWLINE="\n"
+
+first_release_processed='false'
+has_linebreak='false'
+
+text=''
+
+while IFS= read -r line; do
+    if echo $line | grep -q -E '^<a *'; then
+        continue
+    fi
+
+    if echo $line | grep -q -E '^#[#]{1,2} [[]{1}.*|^<a *'; then
+        if  [[ $first_release_processed == "false" ]]; then
+            first_release_processed="true"
+        else
+            break
+        fi
+    fi
+
+    if [[ -z $line ]]; then
+        if [[ $has_linebreak == 'false' ]]; then
+            has_linebreak='true'
+        else
+            continue
+        fi
+    else
+        has_linebreak='false'
+    fi
+
+    text="$text ${line} ${NEWLINE}"
+
+done < "$CHANGELOG"
+
+echo -e "$text"

.github/workflows/release.yml

@@ -0,0 +1,35 @@
+on:
+  push:
+    tags:
+      - 'v*' 
+
+name: release
+
+jobs:
+  build:
+    name: Create Release
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set env
+        run: | 
+         echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
+         echo "RELEASE_NAME=${GITHUB_EVENT_REPOSITORY_NAME}-${RELEASE_VERSION}" >> $GITHUB_ENV
+
+      - name: Create changelog
+        run: |
+          ./.get_latest_changes_for_release_notes.sh > ./${RELEASE_NAME}.md
+
+      - name: Create Release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} 
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ env.RELEASE_VERSION }}
+          body_path: ./${{ env.RELEASE_NAME }}.md
+          draft: false
+          prerelease: false