Powershell script to delete github artifacts older than N days old.

delete-old-github-artifacts.ps1

# Variables
$repo = "Owner/RepoName"
$daysAgo = 14

$twoWeeksAgo = (Get-Date).AddDays(-$daysAgo).ToString("yyyy-MM-ddTHH:mm:ssZ")

# Fetch all artifacts older than 2 weeks
$artifacts = gh api "repos/$repo/actions/artifacts" --paginate --jq ".artifacts | map(select(.created_at < `"`"$twoWeeksAgo`"`"`"))" | ConvertFrom-Json

# Check if there are any artifacts
if (-not $artifacts) {
    Write-Output "No artifacts found that are older than ${daysAgo} days."
    exit
}

# List artifacts
$artifactsList = $artifacts | ForEach-Object { "$($_.id): $($_.name) (Created at: $($_.created_at)) $([math]::floor($_.size_in_bytes / 1024 / 1024))MB" }
$artifactsList | ForEach-Object { Write-Output $_ }

# # Confirm deletion
$confirm = Read-Host "Do you want to delete these $($artifacts.length) artifacts from ${daysAgo} days ago? (y/N)"
if ($confirm -match '^(y|Y)$') {
    $artifacts | ForEach-Object {
        gh api -X DELETE "repos/$repo/actions/artifacts/$($_.id)"
        Write-Output "Deleted artifact ID $($_.id)"
    }
}
else {
    Write-Output "No artifacts were deleted."
}