From d8e2e7beebe2e2ab076b1e044288871aec4d7da4 Mon Sep 17 00:00:00 2001
From: Thomas Eizinger <thomas@eizinger.io>
Date: Wed, 24 Mar 2021 15:11:48 +1100
Subject: [PATCH] Add workflow for creating new releases

Whenever a release branch - that is a branch starting with `release/` -
is merged into master, we create a new GitHub release based on the
version number in the branch name.

Similarly to the preview release, we extract the relevant section of
the changelog and make it the release body.
---
 ...ase-cli.yml => build-release-binaries.yml} |  6 +--
 .github/workflows/create-release.yml          | 41 +++++++++++++++++++
 2 files changed, 44 insertions(+), 3 deletions(-)
 rename .github/workflows/{release-cli.yml => build-release-binaries.yml} (97%)
 create mode 100644 .github/workflows/create-release.yml

diff --git a/.github/workflows/release-cli.yml b/.github/workflows/build-release-binaries.yml
similarity index 97%
rename from .github/workflows/release-cli.yml
rename to .github/workflows/build-release-binaries.yml
index 6d59dcc2..4d9b3b50 100644
--- a/.github/workflows/release-cli.yml
+++ b/.github/workflows/build-release-binaries.yml
@@ -1,12 +1,12 @@
-name: "Release swap and asb"
+name: "Build swap and asb release binaries"
 
 on:
   release:
     types: [created]
 
 jobs:
-  release:
-    name: Release swap
+  build_binaries:
+    name: Build swap and asb binaries
     strategy:
       matrix:
         include:
diff --git a/.github/workflows/create-release.yml b/.github/workflows/create-release.yml
new file mode 100644
index 00000000..f10e7f6b
--- /dev/null
+++ b/.github/workflows/create-release.yml
@@ -0,0 +1,41 @@
+name: "Create release"
+
+on:
+  pull_request:
+    types:
+      - closed
+
+jobs:
+  create_release:
+    name: Create from merged release branch
+    if: github.event.pull_request.merged == true && startsWith(github.event.pull_request.head.ref, 'release/')
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Extract version from branch name
+        id: extract-version
+        shell: python
+        run: |
+          branch_name = "${{ github.event.pull_request.head.ref }}"
+          version = branch_name.split("/")[1]
+
+          print(f"::set-output name=version::{version}")
+
+      - name: Extract changelog section for release
+        id: changelog
+        uses: coditory/changelog-parser@v1
+        with:
+          version: ${{ steps.extract-version.outputs.version }}
+
+      - name: Create release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.BOTTY_GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ steps.extract-version.outputs.version }}
+          release_name: ${{ steps.extract-version.outputs.version }}
+          draft: false
+          prerelease: false
+          body: ${{ steps.changelog.outputs.description }}
+          commitish: ${{ github.event.pull_request.merge_commit_sha }}