Test-LatestVersion.ps1
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<#
.SYNOPSIS Test current PowerShell Core is the latest version. #> function Test-LatestVersion { [CmdletBinding()] param ( [ReleaseTypes]$Release = [ReleaseTypes]::Stable, [switch]$PassThru ) # get latest build status $buildStatus = Find-PowerShellBuildStatus -Release $Release if (-not $buildStatus) { Write-Error $Messages.Test_LatestVersion_001 return } if ($PSVersionTable.PSVersion -gt $buildStatus.Version) { # Note : This pattern occurs when using LTS, Preview version. WriteInfo ($Messages.Test_LatestVersion_002 -f $PSVersionTable.PSVersion, $buildStatus.Version) NotifyNewVersion -Published $buildStatus.ReleaseDate -Release $Release if ($PassThru) { return [PSCustomObject]@{ Result = $true; Release = $Release; LatestVersion = $buildStatus.Version } } return } if ($PSVersionTable.PSVersion -eq $buildStatus.Version) { WriteInfo ($Messages.Test_LatestVersion_003 -f $PSVersionTable.PSVersion) NotifyNewVersion -Published $buildStatus.ReleaseDate -Release $Release if ($PassThru) { return [PSCustomObject]@{ Result = $true; Release = $Release; LatestVersion = $buildStatus.Version } } return } Write-Warning ($Messages.Test_LatestVersion_004 -f $buildStatus.Version) if ($PassThru) { return [PSCustomObject]@{ Result = $false; Release = $Release; LatestVersion = $buildStatus.Version } } } function NotifyNewVersion ([datetime]$Published, [ReleaseTypes]$Release) { # Note : Notify the new version releasing is coming. # * Stable Release : after a half year (180 days) # * Preview Release : after 3 weeks (21 days) # * LTS : no notification if ($Release -eq 'LTS') { return } $span = if ($Release -eq 'Preview') { [timespan]::new(21, 0, 0, 0) } else { [timespan]::new(180, 0, 0, 0) } $elapsed = (Get-Date).Subtract($Published) if ($elapsed -ge $span) { WriteInfo "" WriteInfo ($Messages.Test_LatestVersion_005 -f $elapsed.Days) WriteInfo $Messages.Test_LatestVersion_006 } } |