feed_manual_prs.yml

name: Manual PRs feed
on:
  pull_request_target:
    types: [ opened ]
permissions:
  contents: read
jobs:
  manual-prs-slack:
    if: (github.event.pull_request.user.login != 'JuliaRegistrator') && (github.event.pull_request.user.login != 'jlbuild') && (github.event.pull_request.user.login != 'JuliaTagBot')
    runs-on: ubuntu-latest
    steps:
    - uses: julia-actions/setup-julia@512e2ab44f5848ea62bddd21d1ee906e989b0360 # v2.4.0
      with:
        version: 1.6.2
    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v3.3.0
    - name: Send to Slack
      shell: julia --color=yes {0}
      run: |
        endpoint = ENV["SLACK_ENDPOINT"]
        if isempty(endpoint)
          @info "Endpoint not specified; missing secret? Exiting."
          exit(0)
        end

        pr_number_str = ENV["PR_NUMBER"]
        pr_number_int = parse(Int, ENV["PR_NUMBER"]) # make sure that it is indeed an integer
        pr_url = "https://github.com/JuliaRegistries/General/pull/$(pr_number_int)"

        const allowed_chars = vcat(
            'A':'Z',
            'a':'z',
            '0':'9',
            [' ', '-'],
        )
        const f = char -> char in allowed_chars ? char : '-'
        const sanitize = str -> map(f, str)
        const truncate = str -> first(str, 280)

        pr_author = ENV["PR_AUTHOR"] |> sanitize |> truncate
        pr_title = ENV["PR_TITLE"] |> sanitize |> truncate

        text_lines = String[
            "- Title: $(pr_title)",
            "- Author: $(pr_author)",
            "- URL: $(pr_url)",
        ]
        text = join(text_lines, '\n')

        using Pkg
        Pkg.activate(mktempdir())
        Pkg.add(name="Slack", version="0.1")
        using Slack
        attachment = Dict(
            "color" => "#36a64f",
            "fallback" => pr_title,
            "title" => pr_title,
            "title_link" => pr_url,
            "text" => text,
        )
        data = Dict("attachments" => [attachment])

        if !startswith(endpoint, "/")
            endpoint = string("/", endpoint)
        end
        @info "Told Slack: $(data)"
        response = sendattachmenttoslack(data, endpoint)
        @info "Slack said: $response"
      env:
        SLACK_ENDPOINT: ${{ secrets.JULIALANGSLACKENDPOINT_MANUAL_PRS }}
        PR_NUMBER: ${{ github.event.number }}
        PR_TITLE: ${{ github.event.pull_request.title }}
        PR_AUTHOR: ${{ github.event.pull_request.user.login }}