PR - Manage Stale PRs #2019
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# Contributors: @wicksipedia @william-liebenberg @GordonBeeming | |
# < as per SSW.Rules: https://www.ssw.com.au/rules/standard-set-of-pull-request-workflows/ > | |
name: "PR - Manage Stale PRs" | |
on: | |
pull_request: | |
types: [opened, ready_for_review] | |
branches: [main] | |
schedule: | |
# run every 2nd hour | |
# https://crontab.guru/#0_0/2_*_*_* | |
- cron: "0 0/2 * * *" | |
workflow_dispatch: | |
permissions: | |
contents: read | |
issues: write | |
repository-projects: read | |
pull-requests: write | |
jobs: | |
new_pull_request: | |
if: ${{ github.event_name == 'pull_request' }} | |
runs-on: ubuntu-latest | |
steps: | |
- name: Checkout | |
uses: actions/checkout@v3 | |
- name: add label | |
shell: pwsh | |
run: | | |
$thisPr = gh pr view ${{ github.event.pull_request.number }} --json number,isCrossRepository | ConvertFrom-Json | |
if ($thisPr.isCrossRepository) { | |
Write-Output "Skipping cross repository PR" | |
return | |
} | |
# ensure labels exist - create them if they don't | |
# https://docs.github.com/en/rest/reference/issues#create-a-label | |
$label = "Age: 🥚 - New" | |
$description = "About 2 hours old" | |
Write-Output "Ensuring label exists: $label ($description))" | |
gh api repos/${{ github.repository }}/labels -f name="$label" -f color=000000 -f description="$description" | |
Write-Output "Adding label: $label" | |
gh pr edit $thisPr.number --add-label "$label" | |
env: | |
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
scheduled_run: | |
if: ${{ github.event_name != 'pull_request' }} | |
runs-on: ubuntu-latest | |
steps: | |
- name: Checkout | |
uses: actions/checkout@v3 | |
- name: Find PRs | |
shell: pwsh | |
run: | | |
# labels for each age in hours (as an array) | |
$labels = @( | |
'Age: 🥚 - New', # 2 hours | |
'Age: 🐣 - Young', # 4 hours | |
'Age: 🐥 - Adolescent', # 8 hours | |
'Age: 🐤 - Mature', # 16 hours | |
'Age: 🐓 - Old', # 32 hours | |
'Age: 🍗 - Ancient', # 64 hours | |
'Age: 🦖 - Extinct' # 128 hours | |
) | |
# ensure labels exist - create them if they don't | |
# https://docs.github.com/en/rest/reference/issues#create-a-label | |
$index = 0 | |
$labels | ForEach-Object { | |
$label = $_ | |
$description = "About $([math]::Pow(2, $index + 1)) hours old" | |
Write-Output "Ensuring label exists: $label ($description))" | |
gh api repos/${{ github.repository }}/labels -f name="$label" -f color=000000 -f description="$description" | |
$index++ | |
} | |
$mergeDebtLabelText = "Merge Debt" | |
$mergeDebtLabel = "🔥 $mergeDebtLabelText" | |
$description = "This PR contains merge debt, see https://www.ssw.com.au/rules/merge-debt/" | |
Write-Output "Ensuring label exists: $mergeDebtLabel ($description))" | |
gh api repos/${{ github.repository }}/labels -f name="$mergeDebtLabel" -f color=000000 -f description="$description" | |
$now = Get-Date -AsUTC | |
# use github cli to get a list of open pull requests | |
$openPullRequests = gh pr list -s open --json title,number,createdAt,labels,author | |
Write-Output "Open pull requests:" | |
# for each pull request in the list calculate the age in hours | |
$openPullRequests | ConvertFrom-Json | ForEach-Object { | |
$title = $_.title | |
$number = $_.number | |
$createdAt = $_.createdAt | |
$prLabels = $_.labels | |
$author = $_.author | |
$ageInHours = [int]($now - $createdAt).TotalHours | |
if ($ageInHours -eq 0) { | |
Write-Output "$($number): $title ($ageInHours hours old) - skipping" | |
return | |
} | |
Write-Output "$($number): $title ($ageInHours hours old)" | |
# find age as nearest doubling number of 2 | |
$ageAsPoints = [math]::Ceiling([math]::Log($ageInHours, 2)) | |
Write-Output "ageAsPoints: $([math]::Pow(2,$ageAsPoints))" | |
# if the age is 0, then set it to 1 | |
if ($ageAsPoints -eq 0) { | |
$ageAsPoints = 1 | |
} | |
# if the age is greater than the length of the labels array | |
# then set it to the last label | |
if ($ageAsPoints -gt $labels.Length) { | |
$ageAsPoints = $labels.Length | |
} | |
$newLabel = $labels[$ageAsPoints - 1] | |
Write-Output "Adding label: $newLabel" | |
# all labels except the new label | |
$allLabels = ($labels | Where-Object { $_ -ne $newLabel }) -join ',' | |
Write-Output "Removing labels: $allLabels" | |
gh pr edit $number --add-label "$newLabel" --remove-label "$allLabels" | |
$mergeLabelExists = $prLabels | Where-Object { $_.name.trim().EndsWith($mergeDebtLabelText) } | |
if ($ageInHours -ge 36 -and $mergeLabelExists -eq $null -and $author.is_bot -eq $false) { # after 36 hours old | |
Write-Output "Adding comment to PR: $number" | |
gh pr edit $number --add-label "$mergeDebtLabel" | |
$comment = @" | |
Howzit @$($author.login), | |
This PR has been here a while. | |
[Did you know you should avoid merge debt?](https://www.ssw.com.au/rules/merge-debt/) | |
Please review and merge or close. | |
Thanks! | |
"@ | |
Set-Content -Path "comment.md" -Value $comment | |
gh pr comment $number --body-file comment.md | |
} | |
Write-Output "" | |
} | |
env: | |
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} |