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$databaseName = "Demo"
$base_dir = resolve-path .
$source_dir = "$base_dir\source"
$databaseScripts = "$source_dir\Database.Demo\"
$SqlPackage = "C:\Program Files (x86)\Microsoft SQL Server\110\DAC\bin\SqlPackage.exe"
$AliaSQL = "$base_dir\lib\AliaSQL\AliaSQL.exe"
$databaseName_Original = "$databaseName" + "_Original"
$databaseScriptsUpdate = "$databaseScripts\Scripts\Update"
#Powershell 2.0 can't do this so try another way
#$newScriptName = ((Get-ChildItem $databaseScriptsUpdate -filter "*.sql" | ForEach-Object {[int]$_.Name.Substring(0, 4)} | Sort-Object)[-1] + 1).ToString("0000-") + "$databaseName" + ".sql.temp"
$newScriptName = ([int]((gci $databaseScriptsUpdate -filter "*.sql" | sort CreationTime -desc | select -f 1).Name.Substring(0, 4)) + 1).ToString("0000-") + "$databaseName" + ".sql.temp"
write-host "Building original database..."
& $AliaSQL Rebuild .\sqlexpress "$databaseName_Original" "$databaseScripts\Scripts"
write-host "`n`nGenerating the diff script"
#generate the needed .dacpac (we'll delete it later)
& $SqlPackage /a:Extract /ssn:.\SQLEXPRESS /sdn:$databaseName /tf:$databaseScripts$databaseName.dacpac
#generate the diff script
& $SqlPackage /a:Script /op:$databaseScriptsUpdate\$newScriptName /p:DropObjectsNotInSource=true /p:BlockOnPossibleDataLoss=false /sf:$databaseScripts$databaseName.dacpac /tsn:.\SQLEXPRESS /tdn:"$databaseName_Original"
write-host "`n`nCleaning up generated script..."
$scriptLines = Get-Content $databaseScriptsUpdate\$newScriptName
Clear-Content $databaseScriptsUpdate\$newScriptName
$passedLastSqlCmdThing = $false
$skipBlock = $false
$blocksToSkip = "usd_AppliedDatabaseTestDataScript", "IX_usd_DateApplied"
$noDiff = $true
$noDiffLines = "", "GO", "PRINT N'Update complete.';" #these are the only lines left when there are no DB diffs
foreach($line in $scriptLines)
{
#don't add anything until we get past the line USE [`$(DatabaseName)]; -- all the previous stuff should be sqlcmd/unncessary junk
if ($line -eq "USE [`$(DatabaseName)];")
{
$passedLastSqlCmdThing = $true
}
#skip any blocks which contain any of the text in the skippable array
elseif ($blocksToSkip | Where-Object { $line.Contains($_) })
{
$skipBlock = $true
}
elseif ($passedLastSqlCmdThing -and -not $skipBlock)
{
$newLine = "$line"
Add-Content $databaseScriptsUpdate\$newScriptName "$newLine"
if ($noDiff)
{
#Powershell 2.0 can't do this so we revert to the hard way
#$noDiff = $noDiffLines.Contains($newLine)
$noDiff=$false
foreach($cline in $noDiffLines)
{
if($cline -eq $newLine)
{
$noDiff = $true
}
}
}
}
elseif ($line -eq "GO")
{
$skipBlock = $false
}
}
write-host "Cleaning up temporary files and databases..."
& del $databaseScripts$databaseName.dacpac
& sqlcmd -S .\SQLEXPRESS -Q "DROP DATABASE $databaseName_Original"
if ($noDiff)
{
Remove-Item $databaseScriptsUpdate\$newScriptName
write-host "No schema changes found for $databaseName" -foregroundcolor "green"
}
else
{
write-host "Please validate the new script $databaseScriptsUpdate\$newScriptName is correct, then rename to .sql and add to the database project" -foregroundcolor "yellow"
}