Get project release numbers from GitHub

Get-GitHubReleases.ps1

[System.Net.ServicePointManager]::SecurityProtocol += 'Tls12'

$owner = 'microsoft' # 'microsoft' # 'golang'
$repo =  'Git-Credential-Manager-for-Windows' #'Git-Credential-Manager-for-Windows' #'go'
$relList = $null
$limitAll = $true

$relUrl = (Invoke-RestMethod -Uri "https://api.github.com/repos/$owner/$repo").releases_url
if ($relUrl) {
    $idx = $relUrl.IndexOf('{')
    if (0 -lt $idx) {
        $relUrl = $relUrl.Substring(0, $idx)
    }
    $relList = @(Invoke-RestMethod -Uri $relUrl).tag_name
}
if (-not $relList -or 0 -ge $relList.Count) {
    if (-not (Get-Command -Name 'ConvertFrom-Html' -ErrorAction:SilentlyContinue)) {
        Import-Module PowerHTML -ErrorAction:Stop
    }
    $relList = @() # New-Object System.Collections.ArrayList
    $lastRel = $null
    do {
        #$url = "https://github.com/$owner/$repo/releases"
        $url = "https://github.com/$owner/$repo/tags"
        if ($lastRel) {
            $url += "?after=$lastRel"
        }
        $doc = ConvertFrom-Html -URI $url
        $lastRel = $null
        if ($doc) {
            #$relItems = $doc.SelectNodes('//div[@class="release-entry"]//div[contains(@class, "Details")]//a[contains(@href, "/releases/tag/")]')
            $relItems = $doc.SelectNodes('//div[contains(@class, "Details")]//div[@class="d-flex"]//a[contains(@href, "/releases/tag/")]')
            if ($relItems) {
                $crelList = @($relItems.GetAttributeValue("href", [string]::Empty) `
                    | ForEach-Object {
                        $href = $_.TrimEnd('/')
                        $href = $href.Substring($href.LastIndexOf('/')+1)
                        $href
                    })
                $lastRel = $crelList[-1]
                $relList += $crelList
            }
        }
    } while ($lastRel -and $limitAll)
}
$relList

<#
$os = 'windows'
$arch = 'amd64'
$fmt = 'zip'
# https://dl.google.com/go/go1.12.5.windows-amd64.zip
$dlUrl = "https://dl.google.com/go/$($relList[0]).$os-$arch.$fmt"

Write-Host "Download URL [$dlUrl]"
#>