scripts/win/git/log.ps1
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<# .SYNOPSIS Block-style, colored git log for Borg (last N commits) with keyboard navigation. #> [CmdletBinding()] param( [Parameter(Position=0)] [int]$Count = 5 ) # Allow positional "b gl 20" even if a wrapper passes raw args. if (-not $PSBoundParameters.ContainsKey('Count') -and $args.Count -ge 1) { if ($args[0] -as [int]) { $Count = [int]$args[0] } } # sanitize count if ($Count -lt 1) { $Count = 5 } if ($Count -gt 200) { $Count = 200 } function Wrap-Text([string]$text, [int]$width) { if ([string]::IsNullOrWhiteSpace($text)) { return @("") } $words = $text -split '\s+' $lines = New-Object System.Collections.Generic.List[string] $line = "" foreach ($w in $words) { if (($line.Length + $w.Length + 1) -le $width) { if ($line.Length -eq 0) { $line = $w } else { $line += " $w" } } else { $lines.Add($line) $line = $w } } if ($line.Length -gt 0) { $lines.Add($line) } return $lines } function Simplify-Deco([string]$d) { if ([string]::IsNullOrWhiteSpace($d)) { return "" } $d = $d.Trim() if ($d.StartsWith("(") -and $d.EndsWith(")")) { $d = $d.Substring(1, $d.Length - 2) } $parts = $d.Split(",") | ForEach-Object { $_.Trim() } | Where-Object { $_ -ne "" } $keep = New-Object System.Collections.Generic.List[string] foreach ($p in $parts) { if ($p -match 'HEAD') { [void]$keep.Add('HEAD'); continue } if ($p -match '^tag:') { [void]$keep.Add($p); continue } if ($p -notmatch '^origin\/') { if ($p -notmatch 'HEAD') { [void]$keep.Add($p) } } } $seen = New-Object System.Collections.Generic.HashSet[string] $out = New-Object System.Collections.Generic.List[string] foreach ($k in $keep) { if ($seen.Add($k)) { [void]$out.Add($k) } } if ($out.Count -eq 0) { return "" } return ($out -join ", ") } # --- ensure git/repo --- if (-not (Get-Command git -ErrorAction SilentlyContinue)) { Write-Host "git not found in PATH." -ForegroundColor Red; exit 1 } $top = git rev-parse --show-toplevel 2>$null if ($LASTEXITCODE -ne 0 -or [string]::IsNullOrWhiteSpace($top)) { Write-Host "Not inside a git repository." -ForegroundColor Red; exit 2 } Set-Location $top | Out-Null # header info from porcelain v2 -b $porcelainB = git status --porcelain=v2 -b $branch = ""; $upstream = ""; $ahead = 0; $behind = 0 foreach ($l in $porcelainB) { if ($l -match '^\#\sbranch\.head\s+(.*)$') { $branch = $Matches[1].Trim(); continue } if ($l -match '^\#\sbranch\.upstream\s+(.*)$') { $upstream = $Matches[1].Trim(); continue } if ($l -match '^\#\sbranch\.ab\s+\+(\d+)\s\-(\d+)$') { $ahead = [int]$Matches[1]; $behind = [int]$Matches[2]; continue } } if (-not $branch) { $branch = (git rev-parse --abbrev-ref HEAD).Trim() } # --- collect commits --- $fmt = "%h%x1f%s%x1f%an%x1f%ad%x1f%D%x1f%P%x1e" $raw = git log --decorate=short --date=relative --pretty=format:"$fmt" -n $Count $records = ($raw -split "\x1e") | Where-Object { $_ -and $_.Trim() -ne "" } # --- pre-render blocks into colored lines --- $lines = New-Object System.Collections.Generic.List[object] try { $win = $Host.UI.RawUI.WindowSize } catch { $win = @{ Width = 100; Height = 30 } } $sepWidth = [Math]::Max(40, $win.Width - 0) $wrapWidth = [Math]::Max(40, $win.Width - 12) $lines.Add([pscustomobject]@{ Text = ("Repo : {0}" -f $top); Color = 'Cyan' }) $branchLine = $branch if ($upstream) { $branchLine += " (upstream: $upstream, ↑$ahead ↓$behind)" } $lines.Add([pscustomobject]@{ Text = ("Branch : {0}" -f $branchLine); Color = 'Cyan' }) $lines.Add([pscustomobject]@{ Text = ""; Color = 'White' }) $lines.Add([pscustomobject]@{ Text = ("".PadRight($sepWidth,'-')); Color = 'DarkGray' }) foreach ($rec in $records) { $f = $rec -split "\x1f" if ($f.Length -lt 5) { continue } $sha = $f[0].Trim() $subj = $f[1].Trim() $author = $f[2].Trim() $rel = $f[3].Trim() $decoRaw = $f[4] $parents = if ($f.Length -ge 6) { $f[5].Trim() } else { "" } $isMerge = $false if ($parents -and ($parents -split '\s+').Count -gt 1) { $isMerge = $true } $deco = Simplify-Deco $decoRaw $lines.Add([pscustomobject]@{ Text = ("* {0}" -f $sha); Color = 'Cyan' }) $lines.Add([pscustomobject]@{ Text = (" Author : {0}" -f $author); Color = 'Yellow' }) $lines.Add([pscustomobject]@{ Text = (" When : {0}" -f $rel); Color = 'Green' }) $wrapped = Wrap-Text $subj $wrapWidth if ($wrapped.Count -le 1) { $lines.Add([pscustomobject]@{ Text = (" Commit : {0}" -f $subj); Color = 'White' }) } else { $lines.Add([pscustomobject]@{ Text = (" Commit : {0}" -f $wrapped[0]); Color = 'White' }) foreach ($ln in $wrapped[1..($wrapped.Count-1)]) { $lines.Add([pscustomobject]@{ Text = (" {0}" -f $ln); Color = 'White' }) } } if ($deco) { $lines.Add([pscustomobject]@{ Text = (" Refs : {0}" -f $deco); Color = 'Magenta' }) } if ($isMerge) { $lines.Add([pscustomobject]@{ Text = (" Merge : yes"); Color = 'Red' }) } $lines.Add([pscustomobject]@{ Text = ("".PadRight($sepWidth,'-')); Color = 'DarkGray' }) } function Render([int]$offset) { Clear-Host try { $win = $Host.UI.RawUI.WindowSize } catch { $win = @{ Width = 100; Height = 30 } } $footer = "↑/↓ line · PgUp/PgDn page · Home/End · Q/Esc to quit" $visible = $win.Height - 2 if ($visible -lt 5) { $visible = 5 } $end = [Math]::Min($offset + $visible, $lines.Count) for ($i = $offset; $i -lt $end; $i++) { $ln = $lines[$i] Write-Host $ln.Text -ForegroundColor $ln.Color } Write-Host ("".PadRight($win.Width,' ')) -NoNewline $Host.UI.RawUI.CursorPosition = @{X=0;Y=($win.Height-1)} Write-Host $footer -ForegroundColor DarkGray } $offset = 0 Render -offset $offset $quit = $false while (-not $quit) { $key = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown") $vk = $key.VirtualKeyCode switch ($vk) { 38 { if ($offset -gt 0) { $offset-- } ; Render -offset $offset } # Up 40 { if ($offset -lt [Math]::Max(0, $lines.Count-1)) { $offset++ } ; Render -offset $offset } # Down 33 { $jump = [Math]::Max(1, ($Host.UI.RawUI.WindowSize.Height - 4)) $offset = [Math]::Max(0, $offset - $jump) ; Render -offset $offset } # PageUp 34 { $jump = [Math]::Max(1, ($Host.UI.RawUI.WindowSize.Height - 4)) $offset = [Math]::Min([Math]::Max(0,$lines.Count-1), $offset + $jump) ; Render -offset $offset } # PageDown 36 { $offset = 0 ; Render -offset $offset } # Home 35 { $offset = [Math]::Max(0, $lines.Count-1) ; Render -offset $offset } # End 27 { $quit = $true } # Esc 13 { $quit = $true } # Enter 81 { $quit = $true } # 'Q' key (VirtualKeyCode) default { # Some hosts only set Character for letters; support q/Q here too if ($key.Character -eq 'q' -or $key.Character -eq 'Q') { $quit = $true } } } } Clear-Host |