pr-auto-upsert.yml

name: Auto Upsert Release PR

on:
  # trigger on push to dev branch
  push:
    branches:
      - dev
  # trigger on manual workflow_dispatch
  workflow_dispatch:

concurrency:
  group: pr-upsert-${{ github.ref }}
  cancel-in-progress: true

jobs:
  pr-upsert:
    name: Upsert PR
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          ref: "dev"
          # fetch all history so that git log can get all commit messages
          fetch-depth: 0

      # create a PR from dev to main, with title in form: Release <semver>
      # where, <semver> is the next version number to be released, based on the last release in git tag
      - name: Upsert PR Content
        uses: actions/github-script@v6
        with:
          github-token: ${{ secrets.PAT_FOR_RELEASE_TAGGER }}
          script: |
            const https = require('https')

            const commitMessages = await github.rest.repos.compareCommits({
              owner: context.repo.owner,
              repo: context.repo.repo,
              base: 'main',
              head: 'dev'
            }).then(res => res.data.commits.map(commit => commit.commit.message))

            const summary = await new Promise((resolve, reject) => {
              const req = https.request({
                hostname: 'api.openai.com',
                path: '/v1/chat/completions',
                method: 'POST',
                headers: {
                  'Content-Type': 'application/json',
                  'Authorization': `Bearer ${{ secrets.OPENAI_API_KEY }}`
                }
              }, res => {
                let data = ''
                res.on('data', chunk => data += chunk)
                res.on('end', () => {
                  resolve(JSON.parse(data).choices[0].message.content)
                })
              })
              req.on('error', reject)
              req.write(JSON.stringify({
                "model": "gpt-4",
                "messages": [
                  {
                    "role": "system",
                    "content": "You are now a git commit message summarizer. By analyzing commit messages, you should provide a concise summary, highlighting key changes and updates made in each commit. This can save time and improve clarity for developers working in collaborative projects.\n\nCommits are typically constructed using the Conventional Commit standard.\n\nYour summarized message should consist of 1-3 sentences that are short, concise and includes the overall intent of the PR. You should NOT use bullet points. You MAY omit merge commits in your response."
                  },
                  {
                    "role": "user",
                    "content": "feat: remove deleted required flag\nbuild: add workflow_dispatch\nfeat: add rowsAffected & fix json struct tag\nchore: add logs"
                  },
                  {
                    "role": "assistant",
                    "content": "Added: `workflow_dispatch`, `rowsAffected`, logs.\nFixed: JSON struct tag.\nRemoved: required flag of `deleted`."
                  },
                  {
                    "role": "user",
                    "content": commitMessages.join('\n')
                  }
                ],
                temperature: 1,
                max_tokens: 256,
                top_p: 1,
                frequency_penalty: 0.1,
                presence_penalty: 0.2
              }))
              req.end()
            })

            const { data: { tag_name: lastRelease } } = await github.rest.repos.getLatestRelease({
              owner: context.repo.owner,
              repo: context.repo.repo
            })
            const nextRelease = lastRelease.replace(/(\d+)$/, (match, p1) => Number(p1) + 1)
            const prTitle = `Release ${nextRelease}`
            let body = `> *This PR is automatically created by actions defined in this repository. To see the run log of this action, please click [here](/${{ github.repository }}/actions/runs/${{ github.run_id }})*\n\n---\n\n## Summary\n\n${summary.replace(/\n/g, '\n\n')}`
            const existedPR = await github.rest.pulls.list({
              owner: context.repo.owner,
              repo: context.repo.repo,
              state: 'open',
              head: `${context.repo.owner}:dev`,
              base: 'main'
            })
            if (existedPR.data.length > 0) {
              core.info(`PR already exists: ${existedPR.data[0].html_url}. Updating body...`)
              await github.rest.pulls.update({
                owner: context.repo.owner,
                repo: context.repo.repo,
                pull_number: existedPR.data[0].number,
                body: body
              })
              core.info(`PR updated: ${existedPR.data[0].html_url}`)
              return
            }
            const pr = await github.rest.pulls.create({
              owner: context.repo.owner,
              repo: context.repo.repo,
              title: prTitle,
              body: body,
              head: context.ref,
              base: 'main',
              draft: true
            })