Test-GitOpsDrift.ps1
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Function Test-GitOpsDrift { param( [ValidateScript( { Test-Path $_ -PathType Container })] [Parameter()] [String] $Build = $env:TEMP, [ValidateScript( { Test-Path $_ -PathType Container })] [Parameter(Mandatory = $true)] [String] $Source, [Parameter(Mandatory = $true)] [String] $Destination, [Parameter()] [System.Management.Automation.Runspaces.PSSession] $ToSession, [Parameter()] [String] $GitTag, [Parameter()] [Regex] $Exclude = '^.*\.md$', [Parameter()] [String] $TemplateExtension = ".eps1", [Parameter()] [String] $SpectoCommon = ".specto", [Parameter()] [String] $SpectoSignature ) Process { $InvCmdParams = @{} If ($PSBoundParameters['ToSession']) { $InvCmdParams.Session = $ToSession } If (-not $(Invoke-Command -ScriptBlock { Test-Path $using:Destination } @InvCmdParams)) { Write-Error "$Destination directory not found." } $SourceDirectory = Get-Item $Source Write-Debug "$($SourceDirectory.FullName)" $BuildDirectory = Get-Item $Build $DestinationDirectory = Invoke-Command -ScriptBlock { Get-Item $using:Destination } @InvCmdParams Push-Location $SourceDirectory Try { $Files = @{} If ($PSBoundParameters['GitTag']) { git diff --relative --name-status $GitTag HEAD ` | Tee-Object -Variable GitStatusCmdOutput ` | Write-Debug } Else { git diff --relative --name-status HEAD^ HEAD ` | Tee-Object -Variable GitStatusCmdOutput ` | Write-Debug } ForEach ($Line in $GitStatusCmdOutput) { $GitStatusArray = $Line.Split("`t") Write-Debug $GitStatusArray.Count If ($GitStatusArray.Count -eq 3) { $GitSrcFileInfo = [System.IO.FileInfo](Join-Path $SourceDirectory $GitStatusArray[2]) Write-Debug "$($GitSrcFileInfo | Select-Object -Property *)" $GitSrcFile = $GitSrcFileInfo.FullName.Replace("$($SourceDirectory.FullName)", "") $GitSrcFromFileInfo = [System.IO.FileInfo](Join-Path $SourceDirectory $GitStatusArray[1]) $Files["$GitSrcFile"] = @{ FullName = $GitSrcFileInfo.FullName Parent = $GitSrcFileInfo.DirectoryName FromFile = $GitSrcFromFileInfo.FullName.Replace("$($SourceDirectory.FullName)", "") GitStatus = $GitStatusArray[0] } } ElseIf ($GitStatusArray.Count -eq 2) { $GitSrcFileInfo = [System.IO.FileInfo](Join-Path $SourceDirectory $GitStatusArray[1]) Write-Debug "$($GitSrcFileInfo | Select-Object -Property *)" $GitSrcFile = $GitSrcFileInfo.FullName.Replace("$($SourceDirectory.FullName)", "") $Files["$GitSrcFile"] = @{ FullName = $GitSrcFileInfo.FullName Parent = $GitSrcFileInfo.DirectoryName FromFile = $GitSrcFile GitStatus = $GitStatusArray[0] } } } Write-Debug "$($Files | ConvertTo-Json -Depth 100)" ForEach ($File in $($Files.GetEnumerator())) { $BuildFile = @{ FullName = Join-Path -Path $BuildDirectory.FullName -ChildPath $File.Key Directory = Join-Path -Path $BuildDirectory.FullName -ChildPath $File.Value.Parent.Replace("$($SourceDirectory.FullName)", "") } $DestinationFile = @{ FullName = Join-Path -Path $DestinationDirectory.FullName -ChildPath $File.Key Directory = Join-Path -Path $DestinationDirectory.FullName -ChildPath $File.Value.Parent.Replace("$($SourceDirectory.FullName)", "") } If ($File.Key.EndsWith($TemplateExtension)) { $BuildFile.FullName = $BuildFile.FullName.Replace($TemplateExtension, "") $DestinationFile.FullName = $DestinationFile.FullName.Replace($TemplateExtension, "") } ElseIf ($File.Key.Contains($SpectoCommon)) { If ($SpectoSignature -and ($File.Key.EndsWith($SpectoSignature))) { $BuildFile.FullName = $BuildFile.FullName.Replace($SpectoCommon, "").Replace($SpectoSignature, "") $DestinationFile.FullName = $DestinationFile.FullName.Replace($SpectoCommon, "").Replace($SpectoSignature, "") } Else { Continue } } $BuildFileHash = Get-FileHash $BuildFile.FullName -ErrorAction SilentlyContinue $DestinationFileHash = Invoke-Command -ScriptBlock { Get-FileHash $using:DestinationFile.FullName -ErrorAction SilentlyContinue } @InvCmdParams Switch ($File.Value.GitStatus) { 'A' { # addition of a file Write-Verbose "$($File.Key) was Added since last build, $($DestinationFile.FullName) hash should be null." If ($null -ne $DestinationFilehash) { Write-Warning "$($File.Key) was added but $($DestinationFile.FullName) already exists." } Break } 'D' { # deletion of a file Write-Warning "$($File.Key) was Deleted since last build, consider deleting $($DestinationFile.FullName)." Break } 'M' { # modification of the contents or mode of a file Write-Warning "$($File.Key) was Modified since last build, $($DestinationFile.FullName) shoudl be different than Source and overwritten." If ($null -ne $DestinationFilehash) { Write-Warning "$($File.Key) was Modified but $($DestinationFile.FullName) was not found." } ElseIf ($BuildFileHash.Hash -eq $DestinationFileHash.Hash) { Write-Warning "$($File.Key) was Modified but $($DestinationFile.FullName) matches the hash of the $($Buildfile.FullName) file. File may have already been deployed." } Break } 'R' { # renaming of a file Write-Verbose "$($File.Key) has been renamed from $($File.Value.FromFile). $($DestinationFile.FullName) should not exist. Any file generated from $($Destination.FullName) should be considered for deletion." If ($null -ne $DestinationFileHash) { Write-Warning "$($File.Key) was renamed from $($File.Value.FromFile), but $($DestinationFile.FullName) already exists." } Write-Warning "$($File.Key) was renamed from $($File.Value.FromFile). Consider deleting any file that was generated from $($File.Value.FromFile)." } Default { # Default Write-Warning "$($File.Key) has a status of $($File.Value.GitStatus), which is not handled." } } } ForEach ($SourceFile in $(Get-ChildItem $SourceDirectory.FullName -Recurse -File)) { $SourceFileRelPath = $SourceFile.FullName.Replace($SourceDirectory.FullName, "") If ($Files.ContainsKey($SourceFileRelPath)) { Write-Verbose "$SourceFileRelPath was already checked during Git Diff handling." Continue } $BuildFile = @{ FullName = Join-Path -Path $BuildDirectory.FullName -ChildPath $SourceFile.FullName.Replace($SourceDirectory.FullName, "") Directory = Join-Path -Path $BuildDirectory.FullName -ChildPath $SourceFile.Directory.FullName.Replace($SourceDirectory.FullName, "") } $DestinationFile = @{ FullName = Join-Path -Path $DestinationDirectory.FullName -ChildPath $SourceFile.FullName.Replace($SourceDirectory.FullName, "") Directory = Join-Path -Path $DestinationDirectory.FullName -ChildPath $SourceFile.Directory.FullName.Replace($SourceDirectory.FullName, "") } If ($SourceFile.Name.EndsWith($TemplateExtension)) { $BuildFile.FullName = $BuildFile.FullName.Replace($TemplateExtension, "") $DestinationFile.FullName = $DestinationFile.FullName.Replace($TemplateExtension, "") } ElseIf ($SourceFile.Name.Contains($SpectoCommon)) { If ($SpectoSignature -and ($SourceFile.Name.EndsWith($SpectoSignature))) { $BuildFile.FullName = $BuildFile.FullName.Replace($SpectoCommon, "").Replace($SpectoSignature, "") $DestinationFile.FullName = $DestinationFile.FullName.Replace($SpectoCommon, "").Replace($SpectoSignature, "") } Else { Continue } } $BuildFileHash = Get-FileHash $BuildFile.FullName $DestinationFileHash = Invoke-Command -ScriptBlock { Get-FileHash $using:DestinationFile.FullName -ErrorAction SilentlyContinue } @InvCmdParams Write-Verbose "$SourceFileRelPath has no changes since the last build. $($BuildFile.FullName) should match $($DestinationFile.FullName)." If ($null -eq $DestinationFileHash) { Write-Warning "$SourceFileRelPath has no changes since the last build. $($DesinationFile.FullName) was not found." } ElseIf ($($DestinationFileHash.Hash) -ne $($BuildFileHash.Hash)) { Write-Warning "$SourceFileRelPath has no changes since the last build. $($BuildFile.FullName) does not match $($DestinationFile.FullName)." } } } Finally { Pop-Location } } } |