Add renovate.

.forgejo/actions/renovate/action.yaml

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+# action.yml
+name: renovate
+description: 'renovate with caching'
+
+inputs:
+  endpoint:
+    description: 'Renovate Endpoint'
+    required: true
+  token:
+    description: 'Renovate Token'
+    required: true
+  github-token:
+    description: 'GitHub Token'
+    required: true
+  args:
+    description: 'Renovate Args'
+    required: false
+    default: ''
+  save-cache:
+    description: 'Save cache'
+    required: false
+    default: 'false'
+
+runs:
+  using: 'composite'
+  steps:
+    - uses: actions/cache/restore@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
+      with:
+        path: |
+          .tmp/cache/renovate/repository
+        key: repo-cache-${{ inputs.endpoint }}-${{ github.run_id }}
+        restore-keys: |
+          repo-cache-${{ inputs.endpoint }}-
+
+    - run: |
+        renovate ${{ inputs.args }}
+      shell: bash
+      env:
+        GITHUB_COM_TOKEN: ${{ inputs.github-token }}
+        LOG_LEVEL: debug
+        RENOVATE_BASE_DIR: ${{ github.workspace }}/.tmp
+        RENOVATE_ENDPOINT: ${{ inputs.endpoint }}
+        RENOVATE_PLATFORM: gitea
+        RENOVATE_REPOSITORY_CACHE: 'enabled'
+        RENOVATE_TOKEN: ${{ inputs.token }}
+        RENOVATE_GIT_AUTHOR: 'Renovate Bot <smeagol@hsn.dev>'
+
+        GIT_AUTHOR_NAME: 'Renovate Bot'
+        GIT_AUTHOR_EMAIL: 'smeagol@hsn.dev'
+        GIT_COMMITTER_NAME: 'Renovate Bot'
+        GIT_COMMITTER_EMAIL: 'smeagol@hsn.dev'
+
+    - name: Save renovate repo cache
+      if: always() && inputs.save-cache == 'true'
+      uses: actions/cache/save@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
+      with:
+        path: |
+          .tmp/cache/renovate/repository
+        key: repo-cache-${{ inputs.endpoint }}-${{ github.run_id }}

.forgejo/workflows/renovate.yaml

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+on:
+  schedule:
+    - cron: '*/30 * * * *'
+jobs:
+  renovate:
+    name: Renovate
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/renovatebot/renovate:37.363.8@sha256:d5d20fda77bffb65bb4099389d6cb064e1e06b085bc547e10330bf82317c9693
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          show-progress: false
+
+      - name: Renovate
+        uses: ./.forgejo/actions/renovate
+        with:
+          endpoint: https://git.hsn.dev/api/v1/
+          token: ${{ secrets.RENOVATE_TOKEN }}
+          github-token: ${{ secrets.GH_TOKEN }}
+          args: --platform gitea --autodiscover
+          save-cache: true

.gitignore

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+/.tmp

.vscode/settings.json

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+{
+    "yaml.schemas": {
+      "https://json.schemastore.org/github-workflow.json": [
+        ".github/workflows/*",
+        ".forgejo/workflows/*"
+      ]
+    },
+    "yaml.schemaStore.enable": true
+  }
+  

README.md

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+# Forgejo Renovate
+
+A repo to host the renovate bot admin config.

renovate.json

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+{
+    "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+    "extends": ["config:best-practices"],
+    "semanticCommits": "enabled",
+    "assignees": ["jahanson"],
+    "packageRules": [
+      {
+        "description": "use fix scope for renovate updates",
+        "matchPackageNames": ["ghcr.io/renovatebot/renovate"],
+        "semanticCommitType": "fix"
+      },
+      {
+        "description": "Automerge renovate updates",
+        "matchPackageNames": ["ghcr.io/renovatebot/renovate"],
+        "matchUpdateTypes": ["minor", "patch", "digest"],
+        "automerge": true
+      },
+      {
+        "description": "Update renovate only daily",
+        "matchDepNames": ["ghcr.io/renovatebot/renovate"],
+        "extends": ["schedule:daily"]
+      }
+    ]
+  }
+