56 lines
1.6 KiB
PowerShell
56 lines
1.6 KiB
PowerShell
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function Compare-MetadataPart {
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<#
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.SYNOPSIS
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Compare two version metadata parts for equivalence using the same pattern as Compare-SemVer.
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This function principally intended to be called from Compare-SemVer, prefer that over this.
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.PARAMETER Version1Part
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[string] A fragment of a version for comparing/evaluating just the fragment of the metadata
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.PARAMETER Version2Part
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[string] A fragment of a version for comparing/evaluating just the fragment of the metadata
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#>
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[CmdletBinding()]
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[OutputType([int])]
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param(
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[string]$Version1Part,
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[string]$Version2Part
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)
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if ((-not $Version1Part) -and (-not $Version2Part)) {
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return 0
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}
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# For release part, 1.0.0 is newer/greater then 1.0.0-alpha. So return 1 here.
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if ((-not $Version1Part) -and $Version2Part) {
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return 1
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}
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if (($Version1Part) -and (-not $Version2Part)) {
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return -1
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}
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$version1Num = 0
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$version2Num = 0
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$v1IsNumeric = [System.Int32]::TryParse($Version1Part, [ref] $version1Num);
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$v2IsNumeric = [System.Int32]::TryParse($Version2Part, [ref] $version2Num);
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$result = 0
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# if both are numeric compare them as numbers
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if ($v1IsNumeric -and $v2IsNumeric) {
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$result = $version1Num.CompareTo($version2Num);
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} elseif ($v1IsNumeric -or $v2IsNumeric) {
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# numeric numbers come before alpha chars
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if ($v1IsNumeric) {
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return -1
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} else {
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return 1
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}
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} else {
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$result = [string]::Compare($Version1Part, $Version2Part)
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}
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return $result
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}
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