Get Lines Changed Highscores (Powershell)

GetLinesChanges.ps1

#Run in top directory of Git project and run the powershell script
#You can also ask ChatGPT to change this to Java or Python, etc.
$authorStats = @{}
$author = ""

git log --pretty="%H|%an" --numstat | ForEach-Object {
    # If the line starts with digits, it's a file change entry
    if ($_ -match "^\d+\s+\d+\s") {
        $parts = $_ -split "\s+"
        $add = [int]$parts[0]
        $subs = [int]$parts[1]

        # Ensure author is valid before adding stats
        if ($author -ne "") {
            $authorStats[$author].Add += $add
            $authorStats[$author].Subs += $subs
        }
    }
    # If the line contains "|", it's a new commit entry
    elseif ($_ -match "\|") {
        $parts = $_ -split "\|"
        $author = $parts[1].Trim()

        # Initialize the author's stats if not already done
        if (-not $authorStats.ContainsKey($author)) {
            $authorStats[$author] = New-Object PSObject -Property @{
                Add = 0
                Subs = 0
            }
        }
    }
}

# Output the results
$authorStats.GetEnumerator() | ForEach-Object {
    $author = $_.Key
    $add = $_.Value.Add
    $subs = $_.Value.Subs
    $changed = $add + $subs
    Write-Output "${author}:`n  Added lines: $add`n  Removed lines: $subs`n  Changed lines: $changed`n"
}