Add .github/workflows/docsite.yml

Source file https://github.com/dry-rb/template-gem/blob/1df76684d46081f9182555be719352e9f015806b/.github/workflows/docsite.yml.erb

.github/workflows/docsite.yml

@@ -0,0 +1,62 @@
+# This file is synced from dry-rb/template-gem repo
+
+name: docsite
+
+on:
+  push:
+    paths:
+      - docsite/**
+      - .github/workflows/docsite.yml
+    branches:
+      - main
+      - release-**
+    tags:
+
+jobs:
+  update-docs:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - run: |
+          git fetch --no-tags --prune --depth=1 origin +refs/heads/*:refs/remotes/origin/*
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: "3.0.5"
+      - name: Set up git user
+        run: |
+          git config --local user.email "dry-bot@dry-rb.org"
+          git config --local user.name "dry-bot"
+      - name: Install dependencies
+        run: gem install ossy --no-document
+      - name: Update release branches
+        run: |
+          branches=`git log --format=%B -n 1 $GITHUB_SHA | grep "docsite:release-" || echo "nothing"`
+
+          if [[ ! $branches -eq "nothing" ]]; then
+            for b in $branches
+            do
+              name=`echo $b | ruby -e 'puts gets[/:(.+)/, 1].gsub(/\s+/, "")'`
+
+              echo "merging $GITHUB_SHA to $name"
+
+              git checkout -b $name --track origin/$name
+
+              echo `git log -n 1`
+
+              git cherry-pick $GITHUB_SHA -m 1
+            done
+
+            git push --all "https://dry-bot:${{secrets.GH_PAT}}@github.com/$GITHUB_REPOSITORY.git"
+
+            git checkout main
+          else
+            echo "no need to update branches"
+          fi
+      - name: Trigger dry-rb.org deploy
+        env:
+          GITHUB_LOGIN: dry-bot
+          GITHUB_TOKEN: ${{secrets.GH_PAT}}
+        run: ossy github workflow dry-rb/dry-rb.org ci