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Improve version comparison using dot-notation segment comparison

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Co-authored-by: DRSDavidSoft <4673812+DRSDavidSoft@users.noreply.github.com>
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copilot-swe-agent[bot]
2025-11-08 21:11:36 +00:00
parent f6adae5fb2
commit 456ddcc59e
1 changed files with 35 additions and 12 deletions
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47
vendor/psmodules/Cmder.ps1 vendored
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@@ -50,22 +50,45 @@ function Compare-Version {
[string]$VendorVersion
)
if ($null -eq $UserVersion) { return -1 }
if ($null -eq $VendorVersion) { return 1 }
if ([string]::IsNullOrEmpty($UserVersion)) { return -1 }
if ([string]::IsNullOrEmpty($VendorVersion)) { return 1 }
# Extract all numeric parts from version strings (e.g., "2.49.0.windows.1" -> 2, 49, 0, 1)
# This handles Git version strings like "2.49.0.windows.1" correctly
$userParts = [regex]::Matches($UserVersion, '\d+') | ForEach-Object { [int]$_.Value }
$vendorParts = [regex]::Matches($VendorVersion, '\d+') | ForEach-Object { [int]$_.Value }
# Split version strings by dots to compare segment by segment
# For "2.49.0.windows.1", we get: ["2", "49", "0", "windows", "1"]
$userParts = $UserVersion -split '\.'
$vendorParts = $VendorVersion -split '\.'
# Compare each numeric part sequentially
$maxLength = [Math]::Max($userParts.Count, $vendorParts.Count)
for ($i = 0; $i -lt $maxLength; $i++) {
$userPart = if ($i -lt $userParts.Count) { $userParts[$i] } else { 0 }
$vendorPart = if ($i -lt $vendorParts.Count) { $vendorParts[$i] } else { 0 }
if ($userPart -gt $vendorPart) { return 1 }
if ($userPart -lt $vendorPart) { return -1 }
for ($i = 0; $i -lt $maxLength; $i++) {
$userPart = if ($i -lt $userParts.Count) { $userParts[$i] } else { '' }
$vendorPart = if ($i -lt $vendorParts.Count) { $vendorParts[$i] } else { '' }
# Check if both parts are purely numeric
$userIsNumeric = $userPart -match '^\d+$'
$vendorIsNumeric = $vendorPart -match '^\d+$'
if ($userIsNumeric -and $vendorIsNumeric) {
# Both numeric: compare as integers (so 49 > 5, not lexicographic)
$userNum = [int]$userPart
$vendorNum = [int]$vendorPart
if ($userNum -gt $vendorNum) { return 1 }
if ($userNum -lt $vendorNum) { return -1 }
}
elseif ($userIsNumeric -and -not $vendorIsNumeric) {
# Numeric segment comes before text segment (e.g., "2.0" < "2.0.rc1")
return -1
}
elseif (-not $userIsNumeric -and $vendorIsNumeric) {
# Text segment comes after numeric segment
return 1
}
else {
# Both are text: use case-insensitive lexicographic comparison
$cmp = [string]::Compare($userPart, $vendorPart, $true)
if ($cmp -ne 0) { return [Math]::Sign($cmp) }
}
}
return 0