ci: automate release post tag push (cosmos#6230)

.github/workflows/lint.yml

@@ -1,4 +1,7 @@
 name: Lint
+# Lint runs golangci-lint over the entire cosmos-sdk repository
+# This workflow is run on every pull request and push to master
+# The `golangci` will pass without running if no *.{go, mod, sum} files have been changed.
 on:
   pull_request:
   push:

.github/workflows/proto.yml

@@ -1,8 +1,10 @@
 name: Protobuf
-on: 
+# Protobuf runs buf (https://buf.build/) lint and check-breakage
+# This workflow is only run when a .proto file has been changed
+on:
   pull_request:
-    paths: 
-      - '**.proto'
+    paths:
+      - "**.proto"
 jobs:
   lint:
     runs-on: ubuntu-latest

.github/workflows/release-sims.yml

@@ -1,9 +1,11 @@
 name: Release Sims
-on: 
-  pull_request: 
-    branches: 
-      - 'rc**'
-
+# Release Sims workflow runs long-lived (multi-seed & large block size) simulations
+# This workflow only runs on a pull request when the branch contains rc** (rc1/vX.X.x)
+on:
+  pull_request:
+    branches:
+      - "rc**"
+
 jobs:
   cleanup-runs:
     runs-on: ubuntu-latest

.github/workflows/sims.yml

@@ -1,4 +1,6 @@
 name: Sims
+# Sims workflow runs multiple types of simulations (nondeterminism, import-export, after-import, multi-seed-short)
+# This workflow will run on all Pull Requests, if a .go, .mod or .sum file have been changed
 on:
   pull_request:
 jobs:

.github/workflows/tag.yml

@@ -0,0 +1,26 @@
+name: Release
+# This workflow helps with creating releases.
+# This job will only be triggered when a tag (vX.X.x) is pushed
+on:
+  push:
+    # Sequence of patterns matched against refs/tags
+    tags:
+      - "v[0-9]+.[0-9]+.[0-9]+" # Push events to matching v*, i.e. v1.0, v20.15.10
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install Go
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.14
+      - name: Unshallow
+        run: git fetch --prune --unshallow
+      - name: Create release
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          args: release --rm-dist --release-notes ./RELEASE_CHANGELOG.md
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yml

@@ -1,4 +1,6 @@
-name: Code Coverage
+name: Uint-Tests / Code Coverage
+#  Uint-Tests / Code Coverage workflow runs unit tests and uploads a code coverage report
+#  This workflow is run on pushes to master & every Pull Requests where a .go, .mod, .sum have been changed
 on:
   pull_request:
   push:

.goreleaser.yml

@@ -0,0 +1,27 @@
+---
+project_name: cosmos-sdk
+
+release:
+  github:
+    owner: cosmos
+    name: cosmos-sdk
+
+builds:
+  - skip: true
+
+archives:
+  - format: tar.gz
+    wrap_in_directory: true
+    format_overrides:
+      - goos: windows
+        format: zip
+    name_template: "{{ .Binary }}-{{ .Version }}-{{ .Os }}-{{ .Arch }}{{ if .Arm }}v{{ .Arm }}{{ end }}"
+    files:
+      - LICENSE
+      - README.md
+
+snapshot:
+  name_template: SNAPSHOT-{{ .Commit }}
+
+changelog:
+  skip: true

CONTRIBUTING.md

@@ -216,6 +216,7 @@ only pull requests targeted directly against master.
   - **no PRs targeting this branch should be merged unless exceptional circumstances arise**
 - On the `RC` branch, prepare a new version section in the `CHANGELOG.md`
   - All links must be link-ified: `$ python ./scripts/linkify_changelog.py CHANGELOG.md`
+  - Copy the entries into a `RELEASE_CHANGELOG.md`, this is needed so the bot knows which entries to add to the release page on github.
 - Kick off a large round of simulation testing (e.g. 400 seeds for 2k blocks)
 - If errors are found during the simulation testing, commit the fixes to `master`
   and create a new `RC` branch (making sure to increment the `rcN`)
@@ -234,13 +235,15 @@ releases will be based off of that release.
 - checkout a new branch `rcN/vX.X.X`
 - cherry pick the desired changes from `master`
   - these changes should be small and NON-BREAKING (both API and state machine)
-- add entries to CHANGELOG.md and remove corresponding pending log entries
+- create a `RELEASE_CHANGELOG.md`, add entires.
+  - this is needed so the bot knows which entries to add to the release page on github.
 - checkout a new branch `release/vX.X.X` based off of the previous release
 - create a PR merging `rcN/vX.X.X` into `release/vX.X.X`
 - run tests and simulations (noted in [Release Procedure](#release-procedure))
 - after tests and simulation have successfully completed, merge the `RC` branch into `release/vX.X.X`
   - Make sure to delete the `RC` branch
-- create a PR into `master` containing ONLY the CHANGELOG.md updates
+- create a PR into `master` containing ONLY CHANGELOG.md updates
+  - Do not push `RELEASE_CHANGELOG.md` to master
 - tag (use `git tag -a`) then push the tags (`git push --tags`)
 
 ## Code Owner Membership