stale.yml

name: stale-bot

on:
  schedule:
    # run every day at midnight
    - cron: "0 0 * * *"
  issue_comment:
    types: ["created"]

env:
  # Name of the label that makes issues subject to the stale bot.
  STALE_ENABLE_LABEL: "status: waiting for information"
  # Name of the label used to mark issues as stale.
  STALE_LABEL: "status: stale"

jobs:
  stale-bot:
    runs-on: ubuntu-latest
    steps:
      - name: Mark stale
        if: github.event_name == 'schedule'
        uses: actions/github-script@v3
        with:
          github-token: ${{github.token}}
          script: |
            // Get a list of all open issues labeled as waiting for feedback
            const opts = github.issues.listForRepo.endpoint.merge({
              ...context.repo,
              state: 'open',
              labels: ['${{ env.STALE_ENABLE_LABEL }}'],
            });
            const issues = await github.paginate(opts);

            // Set this value to whatever makes sense for the repo.
            let elapsedDays = 30

            let elapsed = elapsedDays * 24 * 60 * 60 * 1000;
            let now = new Date().getTime();
            for (const issue of issues) {
              // If an issue was active in the past 15 days, leave it alone.
              if (now - new Date(issue.updated_at).getTime() < elapsed) {
                continue;
              }

              // If we're here, we've been waiting for feedback for more than
              // 15 days, mark as stale.
              github.issues.addLabels({
                ...context.repo,
                issue_number: issue.number,
                labels: ['${{ env.STALE_LABEL }}']
              });
            }

      - name: Mark active
        if: github.event_name == 'issue_comment'
        uses: actions/github-script@v3
        with:
          github-token: ${{github.token}}
          script: |
            // Every time a comment is added to an issue, close it if it contains
            // the stale label.

            // Load issue's labels.
            const opts = github.issues.listLabelsOnIssue.endpoint.merge({
              ...context.repo,
              issue_number: context.issue.number
            });
            const labels = await github.paginate(opts);

            // Search for stale label.
            for (const label of labels) {
              if (label.name === '${{ env.STALE_LABEL }}') {
                await github.issues.removeLabel({
                  ...context.repo,
                  issue_number: context.issue.number,
                  name: '${{ env.STALE_LABEL }}'
                })
                return;
              }
            }

      - name: Close stale
        if: github.event_name == 'schedule'
        uses: actions/github-script@v3
        with:
          github-token: ${{github.token}}
          script: |
            // Load all the stale issues
            const opts = github.issues.listForRepo.endpoint.merge({
              ...context.repo,
              state: 'open',
              labels: ['${{ env.STALE_LABEL }}'],
            });
            const issues = await github.paginate(opts);

            // Set this value to whatever makes sense for the repo.
            let elapsedDays = 15;

            let elapsed = elapsedDays * 24 * 60 * 60 * 1000;
            let now = new Date().getTime();
            for (const issue of issues) {
              // If an issue was stale for less than elapsed time, leave it alone.
              if (now - new Date(issue.updated_at).getTime() < elapsed) {
                continue;
              }

              // Close the stale issue.
              await github.issues.update({
                ...context.repo,
                issue_number: issue.number,
                state: 'closed'
              });
            }