Public/Iterating/Foreach-GitRepository.ps1
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<#
.SYNOPSIS Short description .DESCRIPTION Long description .EXAMPLE Example of how to use this cmdlet .EXAMPLE Another example of how to use this cmdlet .INPUTS Inputs to this cmdlet (if any) .OUTPUTS Output from this cmdlet (if any) .NOTES General notes .COMPONENT The component this cmdlet belongs to .ROLE The role this cmdlet belongs to .FUNCTIONALITY The functionality that best describes this cmdlet #> function ForEach-GitRepository { [CmdletBinding( HelpUri = 'http://www.microsoft.com/', ConfirmImpact = 'Low')] [Alias("fgr")] Param ( [Parameter(Mandatory = $true, Position = 0)] [ValidateNotNullOrEmpty()] [scriptblock] $Callback, [Parameter(Mandatory = $false, Position = 1)] [ValidateNotNullOrEmpty()] [scriptblock] $Predicate = { $true }, [switch] $Parallel ) begin { } end { $path = Join-Path -Path $IndexDirectoryName -ChildPath $IndexFileName $gitRepoInfo = Get-Content $path | ConvertFrom-Json -Depth 10 $reposToIterate = $gitRepoInfo.Repositories | Where-Object $Predicate $invokeCallback = { param($cb, $path) if ($cb) { # Change to GIT repo directory try { Push-Location Set-Location $path $cb.InvokeWithContext(@{ }, @(New-Object "PSVariable" @("_", $_))) } finally { Pop-Location } } } if ($Parallel) { $jobs = $reposToIterate | ForEach-Object -Process { Start-Job { param($cmd, $cb, $path) # Script block parameters are projected as strings, therefore we've to recreate the scriptblock objects & ([Scriptblock]::Create($cmd)) -cb ([Scriptblock]::Create($cb)) ` -path $path } -ArgumentList $invokeCallback, $Callback, $_.Path } # Wait for the jobs and receive theirs results $null = Wait-Job -Job $jobs Receive-Job -Job $jobs $null = Remove-Job -Job $jobs } else { # Do actions sequential $reposToIterate | ForEach-Object -Process { & $invokeCallback -cb $Callback -path $_.Path } } } } |