在PowerShell中根据版本号排序

Question

I am sorting the folders in a directory according to version numbers and removing the old ones. The problem I am having is thanks to octopus deploy's versioning standard. If you release a project with the same version multiple times, the numbers will look like this;

---

1.3.5.6
1.3.5.6_1
1.3.5.6_2
1.3.5.7

---

And those underscores are killing my algorithm. My function as follows;

function CleanUp-Files ($col,$NumberToSave) {
  foreach ($pkg in $col.FullName) {
    Get-ChildItem -Path $pkg |
    Where-Object {$_.PsIscontainer} |
    Sort-Object { [version]($_.Name -replace '^(\d+(\.\d+){1,3})(_\d{1,2})?$', '$1') } -Descending |
    Select-Object -Skip $NumberToSave |
    Remove-Item -Recurse -Force -Verbose
  }
}

What can I do to accommodate those underscores into my sorting?

Answer 1

排序对象可以对多个参数执行。

Sort-Object { [Version]($_ -replace '_.*$') }, { if ($_ -match '_') { [Int]($_ -replace '^.*_') } else { 0 } }

Answer 2

Split the Name property by _ - output the first part as a [version] object first, then the suffix last:

... |Sort-Object { 
        $version,$suffix = $_.Name -split '_'
        $version -as [version]
        if($suffix){$suffix} 
}

Answer 3

I would multiply the revision with 100 and add the number after the underscore:

function CleanUp-Files ($col,$NumberToSave) {
    $rex = [regex]'(.*\.)(\d+)_?(\d+)?'
    $callback = {  
        param($match) 
        '{0}{1}' -f $match.Groups[1].Value , ([int]$match.Groups[2].Value * 100 +[int]$match.Groups[3].Value) 
        }
  foreach ($pkg in $col.FullName) {
    Get-ChildItem -Path $pkg |
    Where-Object {$_.PsIscontainer} |
    Sort-Object { [version]($rex.Replace($_.Name, $callback)) } -Descending |
    Select-Object -Skip $NumberToSave |
    Remove-Item -Recurse -Force -Verbose
  }
}

---

A simple demo:

$versions = '1.3.5.6', '1.3.5.6_1', '1.3.5.6_2', '1.3.5.7'

$rex = [regex]'(.*\.)(\d+)_?(\d+)?'
$callback = {  
    param($match) 
    '{0}{1}' -f $match.Groups[1].Value , ([int]$match.Groups[2].Value * 100 +[int]$match.Groups[3].Value) 
    }

$versions | ForEach-Object {
    [version]($rex.Replace($_, $callback))
}

will give you:

Major  Minor  Build  Revision
-----  -----  -----  --------
1      3      5      600     
1      3      5      601     
1      3      5      602     
1      3      5      700