light-client-snapshot-periodic-update #19
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| # The following code has been adapted from the Substrate Connect: | |
| # https://github.com/paritytech/substrate-connect/blob/ef6418015c371430c0735d2b491447326406e5fd/.github/workflows/update-chain-specs.yml | |
| name: light-client-snapshot-periodic-update | |
| on: | |
| schedule: | |
| - cron: '0 9 * * MON' # every Monday at 9am | |
| workflow_dispatch: # allow triggering through the UI | |
| jobs: | |
| download-spec: | |
| runs-on: ubuntu-latest | |
| strategy: | |
| matrix: | |
| # This starts one parallel job for each of these addresses. | |
| rpc-node-address: [ | |
| "wss://rpc.polkadot.io", | |
| "wss://kusama-rpc.polkadot.io", | |
| "wss://westend-rpc.polkadot.io", | |
| ] | |
| fail-fast: false # Don't automatically cancel the jobs of the other RPC nodes if one fails | |
| steps: | |
| - uses: actions/[email protected] | |
| with: | |
| persist-credentials: false | |
| path: repo | |
| ref: dev | |
| - run: | | |
| curl -L -O https://github.com/vi/websocat/releases/download/v1.9.0/websocat_linux64 | |
| chmod +x websocat_linux64 | |
| - run: | | |
| echo '{"id":1,"jsonrpc":"2.0","method":"sync_state_genSyncSpec","params":[true]}' | | |
| ./websocat_linux64 -n1 -B 99999999 ${{ matrix.rpc-node-address }} > rpc_answer.json | |
| - run: cat ./rpc_answer.json | jq .result > chain_spec.json | |
| - id: get-chain-id # Reads the `id` field in the newly-downloaded chain spec | |
| run: echo "id=`jq -r .id ./chain_spec.json`" >> $GITHUB_OUTPUT | |
| - if: ${{ steps.get-chain-id.outputs.id == '' }} | |
| uses: actions/upload-artifact@v3 | |
| with: | |
| name: failed-response-${{ github.run_id }} | |
| path: | | |
| rpc_answer.json | |
| - run: | # Overwrite the `lightSyncState` field of the existing chain spec with the value of spec that's been downloaded. | |
| tmp=$(mktemp) | |
| output=./repo/src/main/webapp/genesis/${{ steps.get-chain-id.outputs.id }}.json | |
| jq --slurpfile downloaded ./chain_spec.json '.lightSyncState = $downloaded[0].lightSyncState' "$output" > "$tmp" | |
| mv "$tmp" "$output" | |
| - uses: actions/upload-artifact@v3 | |
| with: | |
| name: chain-spec-${{ steps.get-chain-id.outputs.id }} | |
| # Note that passing `repo/**` maintains paths under `repo`. This is a bit of magic by the upload-artifact action. | |
| path: | | |
| repo/**/${{ steps.get-chain-id.outputs.id }}.json | |
| create-pr: | |
| runs-on: ubuntu-latest | |
| if: ${{ always() }} # Run this job even if one of the steps of download-spec has failed | |
| needs: download-spec | |
| steps: | |
| - uses: actions/[email protected] | |
| with: | |
| path: repo | |
| ref: dev | |
| - uses: actions/download-artifact@v3 | |
| with: | |
| # Since we're not passing a name, this automatically downloads *all* artifacts | |
| # Unfortunately, this creates intermediary directories. | |
| path: . | |
| - run: cp -r ./chain-spec-*/* ./repo | |
| - uses: peter-evans/create-pull-request@v5 | |
| with: | |
| # We use a custom secret (rather than the default GITHUB_TOKEN) so that opening the pull | |
| # request triggers other actions such as the CI checks. GitHub prevents actions that use | |
| # GITHUB_TOKEN from triggering further actions, to avoid recursive actions. | |
| token: ${{ secrets.GH_TOKEN }} | |
| committer: Fruzhin CICD <[email protected]> | |
| author: Fruzhin CICD <[email protected]> | |
| path: repo | |
| branch: automatic-checkpoints-update | |
| base: dev | |
| title: Update checkpoints in chain specifications | |
| # Note that the `download-spec` job above fails if the downloaded specification doesn't | |
| # correspond to an existing file. It is therefore impossible that the pull request | |
| # accidentally adds new specifications. | |
| body: > | |
| This pull request has been automatically generated by downloading chain | |
| specifications from various JSON-RPC endpoints and extracting their checkpoints. | |
| Keep in mind that introducing a malicious checkpoint can redirect users to the wrong | |
| chain. If this pull request looks suspicious, please be cautious. | |
| commit-message: Update checkpoints in chain specifications | |
| delete-branch: true |