diff --git a/.github/workflows/draft_release.yml b/.github/workflows/draft_release.yml
new file mode 100644
index 00000000000..72258efa0a4
--- /dev/null
+++ b/.github/workflows/draft_release.yml
@@ -0,0 +1,207 @@
+name: Publish draft release
+
+on:
+ workflow_dispatch:
+ inputs:
+ ref1:
+ description: The 'from' tag to use for the diff
+ default: statemine-v5.0.0
+ required: true
+ ref2:
+ description: The 'to' tag to use for the diff
+ default: HEAD
+ required: true
+ pre_release:
+ description: For pre-releases
+ default: "true"
+ required: true
+
+jobs:
+ get-rust-versions:
+ runs-on: ubuntu-latest
+ container:
+ image: paritytech/ci-linux:production
+ outputs:
+ rustc-stable: ${{ steps.get-rust-versions.outputs.stable }}
+ rustc-nightly: ${{ steps.get-rust-versions.outputs.nightly }}
+ steps:
+ - id: get-rust-versions
+ run: |
+ echo "::set-output name=stable::$(rustc +stable --version)"
+ echo "::set-output name=nightly::$(rustc +nightly --version)"
+
+ build-runtimes:
+ runs-on: ubuntu-latest
+ strategy:
+ matrix:
+ runtime: ["shell", "statemine", "statemint", "westmint", "rococo"]
+ steps:
+ - name: Checkout sources
+ uses: actions/checkout@v2
+
+ - name: Cache target dir
+ uses: actions/cache@v2
+ with:
+ path: "${{ github.workspace }}/runtime/${{ matrix.runtime }}/target"
+ key: srtool-target-${{ matrix.runtime }}-${{ github.sha }}
+ restore-keys: |
+ srtool-target-${{ matrix.runtime }}-
+ srtool-target-
+
+ - name: Build ${{ matrix.runtime }} runtime
+ id: srtool_build
+ uses: chevdor/srtool-actions@v0.3.0
+ with:
+ image: paritytech/srtool
+ chain: ${{ matrix.runtime }}
+ runtime_dir: polkadot-parachains/${{ matrix.runtime }}
+
+ - name: Store srtool digest to disk
+ run: |
+ echo '${{ steps.srtool_build.outputs.json }}' | \
+ jq > ${{ matrix.runtime }}_srtool_output.json
+
+ - name: Upload ${{ matrix.runtime }} srtool json
+ uses: actions/upload-artifact@v2
+ with:
+ name: ${{ matrix.runtime }}-srtool-json
+ path: ${{ matrix.runtime }}_srtool_output.json
+
+ - name: Upload ${{ matrix.runtime }} runtime
+ uses: actions/upload-artifact@v2
+ with:
+ name: ${{ matrix.runtime }}-runtime
+ path: |
+ ${{ steps.srtool_build.outputs.wasm_compressed }}
+
+ publish-draft-release:
+ runs-on: ubuntu-latest
+ needs: ["get-rust-versions", "build-runtimes"]
+ outputs:
+ release_url: ${{ steps.create-release.outputs.html_url }}
+ asset_upload_url: ${{ steps.create-release.outputs.upload_url }}
+ steps:
+ - name: Checkout sources
+ uses: actions/checkout@v2
+ with:
+ fetch-depth: 0
+ path: cumulus
+
+ - uses: ruby/setup-ruby@v1
+ with:
+ ruby-version: 3.0.0
+
+ - name: Download srtool json output
+ uses: actions/download-artifact@v2
+
+ - name: Prepare tooling
+ run: |
+ cd cumulus/scripts/changelog
+ gem install bundler changelogerator
+ bundle install
+ changelogerator --help
+
+ URL=https://github.com/chevdor/tera-cli/releases/download/v0.2.1/tera-cli_linux_amd64.deb
+ wget $URL -O tera.deb
+ sudo dpkg -i tera.deb
+ tera --version
+
+ - name: Generate release notes
+ env:
+ RUSTC_STABLE: ${{ needs.get-rust-versions.outputs.rustc-stable }}
+ RUSTC_NIGHTLY: ${{ needs.get-rust-versions.outputs.rustc-nightly }}
+ GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+ NO_CACHE: 1
+ DEBUG: 1
+ SHELL_DIGEST: ${{ github.workspace}}/shell-srtool-json/shell_srtool_output.json
+ WESTMINT_DIGEST: ${{ github.workspace}}/westmint-srtool-json/westmint_srtool_output.json
+ STATEMINE_DIGEST: ${{ github.workspace}}/statemine-srtool-json/statemine_srtool_output.json
+ STATEMINT_DIGEST: ${{ github.workspace}}/statemint-srtool-json/statemint_srtool_output.json
+ ROCOCO_DIGEST: ${{ github.workspace}}/rococo-srtool-json/rococo_srtool_output.json
+ REF1: ${{ github.event.inputs.ref1 }}
+ REF2: ${{ github.event.inputs.ref2 }}
+ PRE_RELEASE: ${{ github.event.inputs.pre_release }}
+ HIDE_SRTOOL_ROCOCO: false
+ HIDE_SRTOOL_SHELL: false
+ run: |
+ find ${{env.GITHUB_WORKSPACE}} -type f -name "*_srtool_output.json"
+ ls -al $SHELL_DIGEST
+ ls -al $WESTMINT_DIGEST
+ ls -al $STATEMINE_DIGEST
+ ls -al $STATEMINT_DIGEST
+ ls -al $ROCOCO_DIGEST
+
+ echo "The diff will be computed from $REF1 to $REF2"
+ cd cumulus/scripts/changelog
+ ./bin/changelog $REF1 $REF2 release-notes.md
+ ls -al release-notes.md
+
+ - name: Create draft release
+ id: create-release
+ uses: actions/create-release@v1
+ env:
+ GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+ with:
+ tag_name: parachains-${{ github.ref }}
+ release_name: Parachains ${{ github.ref }}
+ body_path: ./cumulus/scripts/changelog/release-notes.md
+ draft: true
+
+ publish-runtimes:
+ runs-on: ubuntu-latest
+ needs: ["publish-draft-release"]
+ env:
+ RUNTIME_DIR: polkadot-parachains
+ strategy:
+ matrix:
+ runtime: ["shell", "statemine", "statemint", "westmint", "rococo"]
+ steps:
+ - name: Checkout sources
+ uses: actions/checkout@v2
+
+ - name: Download artifacts
+ uses: actions/download-artifact@v2
+
+ - uses: ruby/setup-ruby@v1
+ with:
+ ruby-version: 3.0.0
+
+ - name: Get runtime version for ${{ matrix.runtime }}
+ id: get-runtime-ver
+ run: |
+ echo "require './scripts/github/runtime-version.rb'" > script.rb
+ echo "puts get_runtime(runtime: \"${{ matrix.runtime }}\", runtime_dir: \"$RUNTIME_DIR\")" >> script.rb
+
+ echo "Current folder: $PWD"
+ ls "$RUNTIME_DIR/${{ matrix.runtime }}"
+ runtime_ver=$(ruby script.rb)
+ echo "Found version: >$runtime_ver<"
+ echo "::set-output name=runtime_ver::$runtime_ver"
+
+ - name: Upload compressed ${{ matrix.runtime }} wasm
+ uses: actions/upload-release-asset@v1
+ env:
+ GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+ with:
+ upload_url: ${{ needs.publish-draft-release.outputs.asset_upload_url }}
+ asset_path: "${{ matrix.runtime }}-runtime/${{ matrix.runtime }}_runtime.compact.compressed.wasm"
+ asset_name: ${{ matrix.runtime }}_runtime-v${{ steps.get-runtime-ver.outputs.runtime_ver }}.compact.compressed.wasm
+ asset_content_type: application/wasm
+
+ post_to_matrix:
+ runs-on: ubuntu-latest
+ needs: publish-draft-release
+ steps:
+ - name: Internal polkadot channel
+ uses: s3krit/matrix-message-action@v0.0.3
+ with:
+ room_id: ${{ secrets.INTERNAL_POLKADOT_MATRIX_ROOM_ID }}
+ access_token: ${{ secrets.MATRIX_ACCESS_TOKEN }}
+ message: |
+ **New draft for ${{ github.repository }}**: ${{ github.ref }}
+
+ Draft release created: [draft](${{ needs.publish-draft-release.outputs.release_url }})
+
+ NOTE: The link above will no longer be valid if the draft is edited. You can then use the following link:
+ [${{ github.server_url }}/${{ github.repository }}/releases](${{ github.server_url }}/${{ github.repository }}/releases)
+ server: "matrix.parity.io"
diff --git a/scripts/changelog/.gitignore b/scripts/changelog/.gitignore
index 1a13c36382e..4fbcc523b04 100644
--- a/scripts/changelog/.gitignore
+++ b/scripts/changelog/.gitignore
@@ -1 +1,4 @@
changelog.md
+*.json
+release*.md
+.env
diff --git a/scripts/changelog/Gemfile b/scripts/changelog/Gemfile
new file mode 100644
index 00000000000..f2d7c3bd716
--- /dev/null
+++ b/scripts/changelog/Gemfile
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
+
+git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
+
+gem 'octokit', '~> 4'
+
+gem 'git_diff_parser', '~> 3'
+
+gem 'toml', '~> 0.3.0'
+
+gem 'rake', group: :dev
+
+gem 'optparse', '~> 0.1.1'
+
+gem 'logger', '~> 1.4'
+
+gem 'test-unit', group: :dev
+
+gem 'rubocop', group: :dev, require: false
diff --git a/scripts/changelog/Gemfile.lock b/scripts/changelog/Gemfile.lock
new file mode 100644
index 00000000000..855d7f91a54
--- /dev/null
+++ b/scripts/changelog/Gemfile.lock
@@ -0,0 +1,79 @@
+GEM
+ remote: https://rubygems.org/
+ specs:
+ addressable (2.8.0)
+ public_suffix (>= 2.0.2, < 5.0)
+ ast (2.4.2)
+ faraday (1.8.0)
+ faraday-em_http (~> 1.0)
+ faraday-em_synchrony (~> 1.0)
+ faraday-excon (~> 1.1)
+ faraday-httpclient (~> 1.0.1)
+ faraday-net_http (~> 1.0)
+ faraday-net_http_persistent (~> 1.1)
+ faraday-patron (~> 1.0)
+ faraday-rack (~> 1.0)
+ multipart-post (>= 1.2, < 3)
+ ruby2_keywords (>= 0.0.4)
+ faraday-em_http (1.0.0)
+ faraday-em_synchrony (1.0.0)
+ faraday-excon (1.1.0)
+ faraday-httpclient (1.0.1)
+ faraday-net_http (1.0.1)
+ faraday-net_http_persistent (1.2.0)
+ faraday-patron (1.0.0)
+ faraday-rack (1.0.0)
+ git_diff_parser (3.2.0)
+ logger (1.4.4)
+ multipart-post (2.1.1)
+ octokit (4.21.0)
+ faraday (>= 0.9)
+ sawyer (~> 0.8.0, >= 0.5.3)
+ optparse (0.1.1)
+ parallel (1.21.0)
+ parser (3.0.2.0)
+ ast (~> 2.4.1)
+ parslet (2.0.0)
+ power_assert (2.0.1)
+ public_suffix (4.0.6)
+ rainbow (3.0.0)
+ rake (13.0.6)
+ regexp_parser (2.1.1)
+ rexml (3.2.5)
+ rubocop (1.23.0)
+ parallel (~> 1.10)
+ parser (>= 3.0.0.0)
+ rainbow (>= 2.2.2, < 4.0)
+ regexp_parser (>= 1.8, < 3.0)
+ rexml
+ rubocop-ast (>= 1.12.0, < 2.0)
+ ruby-progressbar (~> 1.7)
+ unicode-display_width (>= 1.4.0, < 3.0)
+ rubocop-ast (1.13.0)
+ parser (>= 3.0.1.1)
+ ruby-progressbar (1.11.0)
+ ruby2_keywords (0.0.5)
+ sawyer (0.8.2)
+ addressable (>= 2.3.5)
+ faraday (> 0.8, < 2.0)
+ test-unit (3.5.1)
+ power_assert
+ toml (0.3.0)
+ parslet (>= 1.8.0, < 3.0.0)
+ unicode-display_width (2.1.0)
+
+PLATFORMS
+ x86_64-darwin-20
+
+DEPENDENCIES
+ git_diff_parser (~> 3)
+ logger (~> 1.4)
+ octokit (~> 4)
+ optparse (~> 0.1.1)
+ rake
+ rubocop
+ test-unit
+ toml (~> 0.3.0)
+
+BUNDLED WITH
+ 2.2.22
diff --git a/scripts/changelog/README.md b/scripts/changelog/README.md
index 318e3a32e2f..7226530c42a 100644
--- a/scripts/changelog/README.md
+++ b/scripts/changelog/README.md
@@ -1,13 +1,71 @@
# Changelog
-Currently, the changelog is built locally.
-Run:
+Currently, the changelog is built locally. It will be moved to CI once labels stabilize.
+
+For now, a bit of preparation is required before you can run the script:
+- fetch the srtool digests
+- store them under the `digests` folder as `-srtool-digest.json`
+- ensure the `.env` file is up to date with correct information
+
+The content of the release notes is generated from the template files under the `scripts/changelog/templates` folder. For readability and maintenance, the template is split into several small snippets.
+Run:
```
-./changelog.sh
+./bin/changelog [=HEAD]
```
For instance:
```
-./changelog.sh statemine_v4
+./bin/changelog statemine-v5.0.0
+```
+
+A file called `release-notes.md` will be generated and can be used for the release.
+
+## ENV
+
+You may use the following ENV for testing:
+
+```
+RUSTC_STABLE="rustc 1.56.1 (59eed8a2a 2021-11-01)"
+RUSTC_NIGHTLY="rustc 1.57.0-nightly (51e514c0f 2021-09-12)"
+PRE_RELEASE=true
+HIDE_SRTOOL_ROCOCO=true
+HIDE_SRTOOL_SHELL=true
+REF1=statemine-v5.0.0
+REF2=HEAD
+DEBUG=1
+NO_CACHE=1
```
+## Considered labels
+
+The following list will likely evolve over time and it will be hard to keep it in sync.
+In any case, if you want to find all the labels that are used, search for `meta` in the templates.
+Currently, the considered labels are:
+
+- Priority: C labels
+- Audit: D labels
+- E4 => new host function
+- B0 => silent, not showing up
+- B1-releasenotes (misc unless other labels)
+- B5-client (client changes)
+- B7-runtimenoteworthy (runtime changes)
+- T6-XCM
+
+Note that labels with the same letter are mutually exclusive.
+A PR should not have both `B0` and `B5`, or both `C1` and `C9`. In case of conflicts, the template will
+decide which label will be considered.
+
+## Dev and debuggin
+
+### Hot Reload
+
+The following command allows **Hot Reload**:
+```
+fswatch templates -e ".*\.md$" | xargs -n1 -I{} ./bin/changelog statemine-v5.0.0
+```
+### Caching
+
+By default, if the changelog data from Github is already present, the calls to the Github API will be skipped
+and the local version of the data will be used. This is much faster.
+If you know that some labels have changed in Github, you probably want to refresh the data.
+You can then either delete manually the `cumulus.json` file or `export NO_CACHE=1` to force refreshing the data.
diff --git a/scripts/changelog/bin/changelog b/scripts/changelog/bin/changelog
new file mode 100755
index 00000000000..2a94892c2d1
--- /dev/null
+++ b/scripts/changelog/bin/changelog
@@ -0,0 +1,116 @@
+#!/usr/bin/env ruby
+
+# frozen_string_literal: true
+
+# call for instance as:
+# ./bin/changelog statemine-v5.0.0
+#
+# You may set the ENV NO_CACHE to force fetching from Github
+# You should also ensure you set the ENV: GITHUB_TOKEN
+
+require_relative '../lib/changelog'
+require 'logger'
+
+logger = Logger.new($stdout)
+logger.level = Logger::DEBUG
+logger.debug('Starting')
+
+owner = 'paritytech'
+repo = 'cumulus'
+ref1 = ARGV[0]
+ref2 = ARGV[1] || 'HEAD'
+output = ARGV[2] || 'release-notes.md'
+
+ENV['REF1'] = ref1
+ENV['REF2'] = ref2
+
+gh_cumulus = SubRef.new(format('%s/%s', { owner: owner, repo: repo }))
+
+polkadot_ref1 = gh_cumulus.get_dependency_reference(ref1, 'polkadot-client')
+polkadot_ref2 = gh_cumulus.get_dependency_reference(ref2, 'polkadot-client')
+
+substrate_ref1 = gh_cumulus.get_dependency_reference(ref1, 'sp-io')
+substrate_ref2 = gh_cumulus.get_dependency_reference(ref2, 'sp-io')
+
+logger.debug("Polkadot from: #{polkadot_ref1}")
+logger.debug("Polkadot to: #{polkadot_ref2}")
+
+logger.debug("Substrate from: #{substrate_ref1}")
+logger.debug("Substrate to: #{substrate_ref2}")
+
+cumulus_data = 'cumulus.json'
+substrate_data = 'substrate.json'
+polkadot_data = 'polkadot.json'
+
+logger.debug("Using CUMULUS: #{cumulus_data}")
+logger.debug("Using SUBSTRATE: #{substrate_data}")
+logger.debug("Using POLKADOT: #{polkadot_data}")
+
+logger.warn('NO_CACHE set') if ENV['NO_CACHE']
+
+# This is acting as cache so we don't spend time querying while testing
+if ENV['NO_CACHE'] || !File.file?(cumulus_data)
+ logger.debug(format('Fetching data for Cumulus into %s', cumulus_data))
+ cmd = format('changelogerator %s/%s -f %s -t %s > %