ci: automated renovate dry-run (#2276)

* Add automated dry-run

* Rename workflow from Local CLI Checks to Renovate

* tweak naming

* Fix path filter

* Tighten regex for  matching allower Ruby version

* Apply suggestions from code review

Co-authored-by: Ariel Valentin <arielvalentin@users.noreply.github.com>

* Lint

* Switch command

* Update package.json

* Add 'autodiscover' to cspell configuration

* Add a repo filter

Updated the dry run command for Renovate to include a filter for open-telemetry/opentelemetry-ruby-contrib.

---------

Co-authored-by: Ariel Valentin <arielvalentin@users.noreply.github.com>

Author: thompson-tomo

.cspell.yml

@@ -70,6 +70,7 @@ ignoreWords:
   - millis
   - jsonlintrc
   - Dockerfiles
+  - autodiscover
 words:
   - AWSXRayTrace
   - AWSXRaySamplingClient

.github/renovate.json5

@@ -151,7 +151,7 @@
       datasourceTemplate: "ruby-version",
       versioningTemplate: "ruby",
       currentValueTemplate: "{{depVersion}}",
-      extractVersionTemplate: "(?<version>[0-9]+.[0-9]+).0",
+      extractVersionTemplate: "^(?<version>[0-9]+.[0-9]+).0$",
       depNameTemplate: "ruby",
       depTypeTemplate: "gemspec.required_ruby_version",
     },

.github/workflows/test-renovate.yml

@@ -0,0 +1,44 @@
+name: Test / Renovate
+
+on:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - ".github/workflows/test-renovate.yml"
+      - ".github/renovate.json5"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.ref }} # Ensure that only one instance of this workflow is running per event type and ref
+  cancel-in-progress: true # Cancel any previous runs of this workflow for the same event type and ref
+
+jobs:
+  automated-checks:
+    if: ${{ github.repository == 'open-telemetry/opentelemetry-ruby-contrib' }}
+    strategy:
+      fail-fast: false
+    name: Dry-run
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
+      - name: Install Node
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        with:
+          cache: "npm"
+          node-version: "24"
+
+      - name: Install Tools
+        run: npm ci --ignore-scripts
+
+      - name: Run Dry-run
+        env:
+          LOG_LEVEL: debug
+          RENOVATE_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+          RENOVATE_GITHUB_COM_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+        run: |
+          npm run test:renovate:dryrun

package.json

@@ -14,6 +14,7 @@
     "check:source": "npm run check:source:ruby",
     "check:source:ruby": "rubocop --only Bundler,Gemspec,Metrics,Migration,Minitest,Performance,Rake,RSpec,Security",
     "check:spelling": "cspell -c .cspell.yml .",
+    "test:renovate:dryrun": "renovate --dry-run=full --autodiscover --autodiscover-filter open-telemetry/opentelemetry-ruby-contrib",
     "write": "npm run write:lint && npm run write:format && npm run write:source:ruby",
     "write:format": "npm run write:format:ruby && prettier . --write",
     "write:format:json": "prettier **/*.json --write",