Update chart versions in an Argo Repo

Update-HelmCharts.ps1

install-module powershell-yaml

Invoke-Expression "helm repo update"

$repos = ConvertFrom-Json (Invoke-Expression "helm repo list -o json")

$charts = get-childitem chart.yaml -Recurse

foreach ($chart in $charts) {
    Write-Host "Checking $chart"
    $updated = $false
    $yaml = ConvertFrom-Yaml (Get-Content -Raw $chart)
    for ($index = 0; $index -lt $yaml.dependencies.Count; $index++) {
        $name = $yaml.dependencies[$index].name
        $version = New-Object "System.Version" $yaml.dependencies[$index].version
        $url = $yaml.dependencies[$index].repository
        $repo = $repos | Where-Object {$_.url -eq $url} | Select-Object -First 1
        
        $searchResult = ConvertFrom-Json (Invoke-Expression "helm search repo $($repo.name)/$name -o json")
        $singleResult = $searchResult | Where-Object { $_.name -eq "$($repo.name)/$name"} | Select-Object -First 1

        $newVersion = $singleResult.version
        $repoVersion = New-Object "System.Version" $newVersion.replace("v", "")

        if ($version -lt $repoVersion) {
            Write-Host "Updating $name : $version -> $repoVersion"
            $updated = $true
            $yaml.dependencies[$index].version = $newVersion
            $yaml.version = $newVersion
        }
    }
    if ($updated) {
        (ConvertTo-Yaml $yaml) | Out-String | Set-Content -path $chart.FullName
    }
}