set labels on PRs using powershell and GH

setprs.ps1

# Ensure the GitHub CLI is authenticated
gh auth status

# Initialize an empty array to hold all closed PRs
$allClosedPRs = @()

# Fetch closed PRs with a higher limit
$closedPRs = gh pr list --state closed --json number,labels --limit 500
$closedPRs = $closedPRs | ConvertFrom-Json
$allClosedPRs += $closedPRs

# Add the skip-changelog label to each closed PR if it doesn't already have it
foreach ($pr in $allClosedPRs) {
    $prNumber = $pr.number
    $labels = $pr.labels | ForEach-Object { $_.name }

    if ($labels -notcontains "skip-changelog") {
        # Add the skip-changelog label
        gh pr edit $prNumber --add-label "skip-changelog"
    }
}