Keep track of changes

Since there is no official Github support yet I use the following process

- created my own github repository

- whenever I make substantial design changes I export as .pbit

- then I run a powershell script to read the .pbit (it's a ZIP file) and to rename a few of the files inside it to something usable

- the resulting files are stored in the local git repository clone, ready to be synced to the repository.

Here's some sample Powershell code.

# Alias for 7-zip 
if (-not (test-path "$env:ProgramFiles\7-Zip\7z.exe")) {throw "$env:ProgramFiles\7-Zip\7z.exe needed"} 
set-alias sz "$env:ProgramFiles\7-Zip\7z.exe" 
# set location
Set-Location -Path C:\Users\yyy\Documents\GitHub\xxx
# get .pbit files
$files = Get-ChildItem -Recurse -Include *.pbit | Select Name,FullName,LastWriteTime
for ($i = 0; $i -lt $files.Count; $i++) {
    if($files[$i].LastWriteTime -gt (Get-Date).AddDays(-2)) {
        Write-Host $files[$i].Name
        $p = $files[$i].FullName
        $e = $p.LastIndexOf(".")
        #target folder
        $d = $p.Substring(0,$e)
        #Write-Host $d
        # remove entire folder, so we don't have to care about removing individual items
        Remove-Item -LiteralPath $d -Recurse -Force 
        # 7Zip doesn't need the renaming
        sz x "$p" -o"$d" -aoa | Out-Null
        Rename-Item -LiteralPath ($d + "\Report\Layout") -NewName "Layout.json" -Force -ErrorAction Ignore
        Rename-Item -LiteralPath ($d + "\Connections") -NewName "Connections.json" -Force -ErrorAction Ignore
        Rename-Item -LiteralPath ($d + "\DiagramLayout") -NewName "DiagramLayout.json" -Force -ErrorAction Ignore
        Rename-Item -LiteralPath ($d + "\DiagramState") -NewName "DiagramState.json" -Force -ErrorAction Ignore
        #extract DataMashup
        #sz x "$d\DataMashup" -o"$d\Mashup" -aoa | Out-Null
        #clean up DataModelSchema
        $DMS =  Get-Content -Raw -Path ($d + "\DataModelSchema") -Encoding Unicode  | ConvertFrom-Json
        #new meta format doesn't have datasources. Now $DMS.model.tables
        if($DMS.compatibilityLevel -lt 1520) {
            $DMS.model.dataSources | ForEach-Object -Process { 
                #find mashup part of connectionString
                $c1 = $_.connectionString.IndexOf("Mashup=", [StringComparison]"CurrentCultureIgnoreCase")
                #no mashup for direct query
                if( $c1 -gt 1 ) {
                    $c2 = $_.connectionString.LastIndexOf("Location=", [StringComparison]"CurrentCultureIgnoreCase")
                    $m = $_.connectionString.Substring($c1 + 7,$c2-$c1-8)
                    #remove quotes if needed
                    $m = $m -replace '"',""
                    #$m.Length
                    $_.connectionString = $_.connectionString.Substring(0,$c1 + 7) + "..." + $_.connectionString.Substring($c2-1,$_.connectionString.Length - $c2 +1)
                    #$_.name 
                    # write connection zip file - Base64 encoded mashup string
                    #$bytes = [Convert]::FromBase64String($m) 
                    #[IO.File]::WriteAllBytes($d + "\" + $_.name + ".zip", $bytes)
                }
            }
        }
        # write corrected Json
        $DMS | ConvertTo-Json -Depth 3 | Add-Content -LiteralPath ($d + "\DataModelSchema.json")
    }
}