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feat: auto-update CAGENT_VERSION on new cagent releases (#68)
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‎.github/workflows/update-cagent-version.yml‎

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name: Update cagent version
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on:
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repository_dispatch:
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types: [cagent-release]
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workflow_dispatch:
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inputs:
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version:
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description: "cagent version (e.g., v1.28.1). Leave empty to use latest release."
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required: false
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type: string
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jobs:
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update-version:
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runs-on: ubuntu-latest
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env:
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HAS_APP_SECRETS: ${{ secrets.CAGENT_REVIEWER_APP_ID != '' }}
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steps:
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- name: Generate GitHub App token
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if: env.HAS_APP_SECRETS == 'true'
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id: app-token
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continue-on-error: true
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uses: tibdex/github-app-token@3beb63f4bd073e61482598c45c71c1019b59b73a # v2
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with:
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app_id: ${{ secrets.CAGENT_REVIEWER_APP_ID }}
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private_key: ${{ secrets.CAGENT_REVIEWER_APP_PRIVATE_KEY }}
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- uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
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with:
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token: ${{ steps.app-token.outputs.token || secrets.RELEASE_TOKEN }}
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- name: Determine version
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id: version
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env:
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DISPATCH_VERSION: ${{ github.event.client_payload.version }}
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INPUT_VERSION: ${{ inputs.version }}
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GH_TOKEN: ${{ steps.app-token.outputs.token || secrets.RELEASE_TOKEN }}
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run: |
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if [ -n "$INPUT_VERSION" ]; then
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VERSION="$INPUT_VERSION"
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echo "Using manual input version: $VERSION"
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elif [ -n "$DISPATCH_VERSION" ]; then
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VERSION="$DISPATCH_VERSION"
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echo "Using dispatched version: $VERSION"
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else
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echo "No version specified, fetching latest release from docker/cagent..."
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VERSION=$(gh release view --repo docker/cagent --json tagName --jq '.tagName')
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echo "Latest release: $VERSION"
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fi
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echo "version=$VERSION" >> "$GITHUB_OUTPUT"
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- name: Validate version exists
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env:
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GH_TOKEN: ${{ steps.app-token.outputs.token || secrets.RELEASE_TOKEN }}
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VERSION: ${{ steps.version.outputs.version }}
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run: |
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echo "Validating that $VERSION exists as a release on docker/cagent..."
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if ! gh release view "$VERSION" --repo docker/cagent > /dev/null 2>&1; then
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echo "❌ Release $VERSION not found on docker/cagent"
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exit 1
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fi
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echo "✅ Release $VERSION exists"
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- name: Check current version
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id: check
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env:
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VERSION: ${{ steps.version.outputs.version }}
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run: |
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CURRENT=$(cat CAGENT_VERSION | tr -d '[:space:]')
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echo "Current version: $CURRENT"
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echo "Target version: $VERSION"
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if [ "$CURRENT" = "$VERSION" ]; then
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echo "Already up to date, nothing to do."
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echo "skip=true" >> "$GITHUB_OUTPUT"
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else
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echo "Version update needed: $CURRENT → $VERSION"
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echo "skip=false" >> "$GITHUB_OUTPUT"
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echo "current=$CURRENT" >> "$GITHUB_OUTPUT"
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fi
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- name: Update CAGENT_VERSION
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if: steps.check.outputs.skip != 'true'
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env:
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VERSION: ${{ steps.version.outputs.version }}
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run: |
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echo "$VERSION" > CAGENT_VERSION
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echo "Updated CAGENT_VERSION to $VERSION"
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- name: Create or update PR
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if: steps.check.outputs.skip != 'true'
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env:
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GH_TOKEN: ${{ steps.app-token.outputs.token || secrets.RELEASE_TOKEN }}
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VERSION: ${{ steps.version.outputs.version }}
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CURRENT: ${{ steps.check.outputs.current }}
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run: |
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BRANCH="auto/update-cagent-version"
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RELEASE_URL="https://github.com/docker/cagent/releases/tag/$VERSION"
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# Configure git
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git config user.name "github-actions[bot]"
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git config user.email "github-actions[bot]@users.noreply.github.com"
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# Create or reset branch
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git checkout -B "$BRANCH"
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git add CAGENT_VERSION
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git commit -m "chore: update cagent to $VERSION"
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# Force-push to handle both new and existing branches.
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# This branch is exclusively managed by this workflow, so --force is safe.
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git push --force origin "$BRANCH"
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# Check if a PR already exists for this branch
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EXISTING_PR=$(gh pr list --head "$BRANCH" --state open --json number --jq '.[0].number')
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if [ -n "$EXISTING_PR" ]; then
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echo "Updating existing PR #$EXISTING_PR"
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gh pr edit "$EXISTING_PR" \
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--title "chore: update cagent to $VERSION" \
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--body "$(cat <<EOF
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## Summary
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Updates \`CAGENT_VERSION\` from \`$CURRENT\` to \`$VERSION\`.
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- **Release**: [$VERSION]($RELEASE_URL)
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- **Triggered by**: \`${{ github.event_name }}\`
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> Auto-generated by the [update-cagent-version](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}) workflow.
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EOF
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)"
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else
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echo "Creating new PR"
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gh pr create \
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--title "chore: update cagent to $VERSION" \
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--body "$(cat <<EOF
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## Summary
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Updates \`CAGENT_VERSION\` from \`$CURRENT\` to \`$VERSION\`.
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- **Release**: [$VERSION]($RELEASE_URL)
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- **Triggered by**: \`${{ github.event_name }}\`
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> Auto-generated by the [update-cagent-version](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}) workflow.
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EOF
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)" \
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--label "kind/dependencies"
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fi

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