github-actions - 如何在github Action 表达式中进行数学比较

Question

对于 GitHub 操作工作流程，我想比较 if 条件中的两个变量以确定是否应运行某个步骤。但是，比较似乎是作为字符串比较发生的，例如，8060 的计算结果大于 65536。我如何强制将这些作为数学比较？

jobs:
  generate-report:
    runs-on: ubuntu-latest
    name: Generate update review report
    outputs:
      update-report: ${{ steps.set-update-report.outputs.report }}
      update-report-length: ${{ steps.set-update-report.outputs.length }}
    steps:
      - name: Get depdive update report
        id: set-update-report
        run: |
          output="$(depdive update-review paths ./base/ ./)"
          echo "::set-output name=report::${output}"
          length=$(echo ${output} | wc -c )
          echo "::set-output name=length::${length}"


  make-pr-comment:
    runs-on: ubuntu-latest
    name: Comment on PR
    needs: generate-report
    env:
      MAX_ALLOWED_CHARS: 65536
    steps:
      - name: make valid comment
        if: ${{ needs.generate-report.outputs.update-report && needs.generate-report.outputs.update-report-length < env.MAX_ALLOWED_CHARS }}
        # expects mathematical comparison here
        run: |
          echo "valid"
      - name: make comment when output too big
        if: ${{ needs.generate-report.outputs.update-report && needs.generate-report.outputs.update-report-length >= env.MAX_ALLOWED_CHARS }}
        # expects mathematical comparison here
        run: |
          echo "invalid"

Answer 1

“Context and expression syntax for GitHub Actions / Operator”文档指出:

If the types do not match, GitHub coerces the type to a number.

因此，尽量使用数字字面量:

if {{ aVariable + 0 < anotherVariable + 0 }}