name: Linear Release

on:
  push:
    branches:
      - main
      - "rc/**"
  release:
    types: [published]
  workflow_call:
    inputs:
      rc_version:
        description: "X.Y.0 release whose rc branch was just cut"
        required: true
        type: string
    secrets:
      LINEAR_API_KEY:
        required: true

permissions: {}

jobs:
  linear-release:
    name: Linear Release
    if: github.repository == 'BerriAI/litellm'
    runs-on: ubuntu-latest
    permissions:
      contents: read
    steps:
      - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
        with:
          fetch-depth: 0
          persist-credentials: false

      - name: Plan
        id: plan
        env:
          EVENT: ${{ github.event_name }}
          REF_NAME: ${{ github.ref_name }}
          BEFORE: ${{ github.event.before }}
          CREATED: ${{ github.event.created }}
          RC_VERSION: ${{ inputs.rc_version }}
          RELEASE_TAG: ${{ github.event.release.tag_name }}
          PRERELEASE: ${{ github.event.release.prerelease }}
        run: |
          set -euo pipefail
          sync_base="${BEFORE}"
          if [ "${CREATED}" = "true" ]; then
            sync_base=""
          fi
          if [ -n "${RC_VERSION}" ]; then
            echo "version=${RC_VERSION}" >> "$GITHUB_OUTPUT"
            echo "stage=rc" >> "$GITHUB_OUTPUT"
          elif [ "${EVENT}" = "release" ]; then
            if [ "${PRERELEASE}" = "true" ] || ! echo "${RELEASE_TAG}" | grep -qE '^v[0-9]+\.[0-9]+\.0$'; then
              echo "::notice::${RELEASE_TAG} is not an X.Y.0 stable release; nothing to complete"
              exit 0
            fi
            echo "version=${RELEASE_TAG#v}" >> "$GITHUB_OUTPUT"
            echo "complete=true" >> "$GITHUB_OUTPUT"
          elif [ "${REF_NAME}" = "main" ]; then
            version="$(python3 .github/scripts/read_rc_version.py | cut -d= -f2)"
            status=0
            git ls-remote --exit-code --heads origin "rc/${version}" > /dev/null || status=$?
            case "${status}" in
              0)
                IFS=. read -r major minor _ <<< "${version}"
                version="${major}.$((minor + 1)).0"
                ;;
              2) ;;
              *)
                echo "::error::could not check whether rc/${version} exists (git ls-remote exit ${status})"
                exit 1
                ;;
            esac
            echo "version=${version}" >> "$GITHUB_OUTPUT"
            echo "sync_base=${sync_base}" >> "$GITHUB_OUTPUT"
            echo "main=true" >> "$GITHUB_OUTPUT"
          else
            echo "version=${REF_NAME#rc/}" >> "$GITHUB_OUTPUT"
            echo "sync_base=${sync_base}" >> "$GITHUB_OUTPUT"
            echo "stage=rc" >> "$GITHUB_OUTPUT"
          fi

      - name: Sync commits into the release
        if: steps.plan.outputs.sync_base != ''
        uses: linear/linear-release-action@d4af10092984f9bc6d5efa075b242bdf01333463 # v0.18.0
        with:
          access_key: ${{ secrets.LINEAR_API_KEY }}
          command: sync
          name: LiteLLM ${{ steps.plan.outputs.version }}
          version: ${{ steps.plan.outputs.version }}
          base_ref: ${{ steps.plan.outputs.sync_base }}
          cli_version: v0.18.0

      - name: Keep the main stage unless the rc branch was cut during this run
        id: main_stage
        if: steps.plan.outputs.main == 'true'
        env:
          VERSION: ${{ steps.plan.outputs.version }}
        run: |
          set -euo pipefail
          status=0
          git ls-remote --exit-code --heads origin "rc/${VERSION}" > /dev/null || status=$?
          case "${status}" in
            0) echo "::notice::rc/${VERSION} was cut during this run; leaving the release in its rc stage" ;;
            2) echo "stage=main" >> "$GITHUB_OUTPUT" ;;
            *)
              echo "::error::could not check whether rc/${VERSION} exists (git ls-remote exit ${status})"
              exit 1
              ;;
          esac

      - name: Move the release to its stage
        if: steps.plan.outputs.stage != '' || steps.main_stage.outputs.stage != ''
        uses: linear/linear-release-action@d4af10092984f9bc6d5efa075b242bdf01333463 # v0.18.0
        with:
          access_key: ${{ secrets.LINEAR_API_KEY }}
          command: update
          stage: ${{ steps.plan.outputs.stage || steps.main_stage.outputs.stage }}
          version: ${{ steps.plan.outputs.version }}
          cli_version: v0.18.0

      - name: Complete the release
        if: steps.plan.outputs.complete == 'true'
        uses: linear/linear-release-action@d4af10092984f9bc6d5efa075b242bdf01333463 # v0.18.0
        with:
          access_key: ${{ secrets.LINEAR_API_KEY }}
          command: complete
          version: ${{ steps.plan.outputs.version }}
          cli_version: v0.18.0