Functions/Update-GitRepository.ps1
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Function Update-GitRepository { [CmdletBinding()] # The path to the Registry keys containing potential Git installation details $GitInstallRegPaths = @('HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Git_is1', # Native bitness 'HKCU:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Git_is1', # x86 on x64 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Git_is1', # Native bitness 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Git_is1') # x86 on x64 # The name of the Registry property that gives the installation location $GitInstallDirProp = 'InstallLocation' # Ensure that any errors we receive are considered fatal $ErrorActionPreference = 'Stop' Function Test-GitInstalled { Write-Verbose 'Testing Git is installed...' foreach ($GitInstallRegPath in $GitInstallRegPaths) { if (Test-Path $GitInstallRegPath -PathType Container) { $GitPath = (Get-ItemProperty -Path $GitInstallRegPath).$GitInstallDirProp break } } if (!$GitPath) { Write-Error 'Git does not appear to be installed on this system.' } if (!(Test-Path $GitPath -PathType Container)) { Write-Error 'The Git installation on this system appears to be damaged.' } # Amend the PATH variable to include the full set of Git utilities $Env:Path="$Env:Path;$GitPath\bin" # Setup the HOME environment variable needed by SSH (this caused some serious pain) # # More pain: if running as a Scheduled Task the user profile of the running account # may not yet be loaded on Windows 8 or Server 2012 and newer. As a result, the # USERPROFILE environment variable will point to the Default user profile. We can # seemingly work around this by using GetFolderPath() from the Environment class. # # See: https://support.microsoft.com/en-us/kb/2968540 $Env:HOME = [Environment]::GetFolderPath([System.Environment+SpecialFolder]::UserProfile) } Function Test-GitRepository { Write-Verbose 'Testing current directory is a Git repository...' git rev-parse --git-dir 2>&1 | Out-Null if ($LASTEXITCODE -ne 0) { Write-Error 'The current directory is not part of a Git repository.' } } Function Test-Windows64bit { Write-Verbose 'Testing if we are running on 64-bit Windows...' if ((Get-WmiObject 'Win32_OperatingSystem').OSArchitecture -ne '64-bit') { Write-Error 'We only support running on 64-bit systems. Seriously, it is time to upgrade already!' } } Function Update-GitRepository { Write-Verbose 'Updating the Git repository...' git add --all if ($LASTEXITCODE -ne 0) { Write-Error "Something went wrong updating the Git index with all changes." } # Check if the index is dirty indicating we have something to commit git diff-index --quiet --cached HEAD if ($LASTEXITCODE -ne 0) { $GitCommitDate = Get-Date -UFormat "%d/%m/%Y" git commit -m "Changes for $GitCommitDate" if ($LASTEXITCODE -ne 0) { Write-Error "Something went wrong committing all changes in the Git index." } } git pull if ($LASTEXITCODE -ne 0) { Write-Error "Something went wrong pulling from the Git repository." } git push if ($LASTEXITCODE -ne 0) { Write-Error "Something went wrong pushing to the Git repository." } } # Although technically we don't need x64 we have only tested on it Test-Windows64bit # Check Git is installed on the system and setup the environment Test-GitInstalled # Check we're currently operating within a Git repository Test-GitRepository # Commit all changes and update the Git repository Update-GitRepository } |