agent-git-trees.ps1

agent-git-trees.ps1

# PowerShell functions for managing git worktrees with agent pattern
# Based on: https://gist.github.com/dhh/18575558fc5ee10f15b6cd3e108ed844

function ga {
    <#
    .SYNOPSIS
        Create a new git worktree and branch
    .DESCRIPTION
        Creates a new git worktree with a branch name following the pattern:
        ../[current-dir]--[branch-name]
    .PARAMETER BranchName
        The name of the new branch to create
    .EXAMPLE
        ga feature-123
    #>
    param(
        [Parameter(Mandatory=$true)]
        [string]$BranchName
    )

    $currentDir = Split-Path -Leaf (Get-Location)
    $worktreePath = Join-Path ".." "$currentDir--$BranchName"

    Write-Host "Creating worktree at: $worktreePath" -ForegroundColor Cyan

    git worktree add -b $BranchName $worktreePath

    if ($LASTEXITCODE -eq 0) {
        # Uncomment if you use mise: mise trust -a $worktreePath
        Set-Location $worktreePath
    }
}

function gd {
      <#
      .SYNOPSIS
          Remove current worktree and its branch
      .DESCRIPTION
          Removes the current git worktree and deletes its associated branch.
          Expects the directory to follow the pattern: [root]--[branch-name]
      .EXAMPLE
          gd
      #>

      $currentPath = Get-Location
      $currentDir = Split-Path -Leaf $currentPath

      # Check if current directory follows the worktree pattern
      if ($currentDir -notmatch '--') {
          Write-Host "Error: Current directory doesn't appear to be a worktree (no '--' separator found)" -ForegroundColor Red
          return
      }

      # Parse root and branch from directory name
      $parts = $currentDir -split '--', 2
      $rootDir = $parts[0]
      $branchName = $parts[1]

      Write-Host "About to remove worktree and delete branch '$branchName'" -ForegroundColor Yellow
      $confirmation = Read-Host "Are you sure? (y/N)"

      if ($confirmation -eq 'y' -or $confirmation -eq 'Y') {
          # Navigate to root directory
          $parentPath = Split-Path -Parent $currentPath
          $rootPath = Join-Path $parentPath $rootDir

          if (Test-Path $rootPath) {
              Set-Location $rootPath

              # Remove worktree using directory name, not full path
              Write-Host "Removing worktree: $currentDir" -ForegroundColor Cyan
              git worktree remove $currentDir --force

              # Delete branch
              Write-Host "Deleting branch: $branchName" -ForegroundColor Cyan
              git branch -D $branchName
          } else {
              Write-Host "Error: Root directory not found at $rootPath" -ForegroundColor Red
          }
      } else {
          Write-Host "Cancelled." -ForegroundColor Yellow
      }
  }