Powershell to sync and push to remote git repository via Windows Scheduled Tasks

noop_sync.vbs

' Hack to workaround the Powershell Console popup running on a Windows Scheduled Task
' Powershell limitations: https://github.com/PowerShell/PowerShell/issues/3028
'
' Add this file in the same git root directory as the sync.ps1
'
Dim shell,command
Dim oFSO : Set oFSO = CreateObject("Scripting.FileSystemObject")
Dim sScriptDir : sScriptDir = oFSO.GetParentFolderName(WScript.ScriptFullName)
command = "powershell.exe -nologo -File " & sScriptDir & "\sync.ps1"

Set shell = CreateObject("WScript.Shell")
shell.Run command,0

sync.ps1

function GitCommitAndPush {
    $dateString = Get-Date -UFormat "%Y-%m-%d %H:%M:%S"
    git add .
    git commit -q -m  "$($dateString)"
    git push -q
}

function GitPull {
    git pull
}

$scriptPath = split-path -parent $MyInvocation.MyCommand.Definition
Set-Location -Path $scriptPath
GitPull

if(git status --porcelain |Where {$_ -match '^\?\?'}){
    # untracked files exist
    GitCommitAndPush
    Exit 0
}
elseif(git status --porcelain |Where {$_ -notmatch '^\?\?'}) {
    # uncommitted changes
    GitCommitAndPush
    Exit 0
}
else {
    # tree is clean
    Exit 0
}