Noveris.Version.psm1
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<# #> ################ # Global settings $ErrorActionPreference = "Stop" $InformationPreference = "Continue" Set-StrictMode -Version 2.0 ######## # Script variables $semVerPattern = "^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$" <# #> Function Get-BuildNumber { [OutputType('System.Int64')] [CmdletBinding()] param( ) process { $MinDate = New-Object DateTime -ArgumentList 1970, 1, 1 [Int64]([DateTime]::Now - $MinDate).TotalDays } } <# #> Function Select-ValidVersions { [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUseSingularNouns', '')] [CmdletBinding()] param( [Parameter(Mandatory=$true,ValueFromPipeline)] [AllowNull()] [AllowEmptyString()] [string]$Source, [Parameter(Mandatory=$false)] [switch]$First = $false, [Parameter(Mandatory=$false)] [switch]$Required = $false ) begin { $MatchFound = $false } process { if ([string]::IsNullOrEmpty($Source)) { Write-Verbose "Null or empty version supplied" return } if ($MatchFound -and $First) { Write-Verbose "Ignoring source - valid version already identified and -First specified" return } Write-Verbose "Processing Version Source: ${Source}" $working = $Source # Strip any refs/tags/ reference at the beginning of the version source $tagBranch = "refs/tags/" if ($working.StartsWith($tagBranch)) { Write-Verbose "Version starts with refs/tags format - Removing" $working = $working.Substring($tagBranch.Length) } # Save a copy of the raw version, minus the leading refs/tags, if it existed, as the tag $tag = $working # Leading 'v' should be stripped for SemVer processing if ($working.StartsWith("v")) { Write-Verbose "Version starts with 'v' - Removing" $working = $working.Substring(1) } # Save a copy of this content as the full version, which is the tag, minus any leading 'v' $fullVersion = $working # Check if we match the semver regex pattern # Regex used directly from semver.org if ($working -notmatch $semVerPattern) { Write-Verbose "Version string not in correct format. skipping" return } # Extract components of version string $major = [Convert]::ToInt32($Matches[1]) $minor = [Convert]::ToInt32($Matches[2]) $patch = [Convert]::ToInt32($Matches[3]) $Prerelease = $Matches[4] $Buildmetadata = $Matches[5] # Make sure prerelease and buildmetadata are at least an empty string if ($null -eq $Prerelease) { $Prerelease = "" } if ($null -eq $Buildmetadata) { $Buildmetadata = "" } # Check if we are a prerelease version $IsPrerelease = $false if (![string]::IsNullOrEmpty($Prerelease)) { $IsPrerelease = $true } # Version is valid - Write to output stream Write-Verbose "Version is valid" $result = [PSCustomObject]@{ Raw = $Source Tag = $tag Major = $major Minor = $minor Patch = $patch FullVersion = $fullVersion Prerelease = $Prerelease Buildmetadata = $Buildmetadata BuildVersion = ("{0}.{1}.{2}.{3}" -f $major, $minor, $patch, (Get-BuildNumber)) AssemblyVersion = "${major}.0.0.0" PlainVersion = ("{0}.{1}.{2}" -f $major, $minor, $patch) IsPrerelease = $IsPrerelease } Write-Verbose ($result | ConvertTo-Json) $result $MatchFound = $true } end { if ($Required -and !$MatchFound) { # throw error as we didn't find a valid version source Write-Error "Could not find a valid version source" } } } |