How to pipe embedded script to powershell - powershell

Question

I adapted some code from a solution here, but it doesn't work for me when executed as a bat script. Executed within a bat script, it gives the error below. Executed on the command line (with the correct line number as calculated by the script in place of %Line%, it works fine.
The key line is
more +%Line% %0 | powershell -c –
The error is
û : The term 'û' is not recognized as the name of a cmdlet, function, script file, or operable program.
The full Bat script is
#echo off
set fn=Archive-Extract
set fnp0=C:\RMT\VCS\GIT\Games\soulfu\build\dependencies2\libogg-1.2.2.zip
set fnp1=C:\RMT\VCS\GIT\Games\soulfu\build\dependencies2
::::::::::::::::::::::::::::::::::::
REM Set %A to the line number of all lines starting with ':', this leaves %A with the line number of the last ':'.
for /f "delims=:" %%a In ('findstr /Bn ":" %0') do set /A Line=%%a
REM Send the content of this script past the last line starting with ':' to powershell.
more +%Line% %0 | powershell -c –
::::::::::::::::::::::::::::::::::::
dir *.bat
pause & exit /b
::::::::::::::::::::::::::::::::::::
function Archive-Extract([string]$zipFilePath, [string]$destinationPath) {
# This will get added when paths are joined, and path comparison will need it to be absent.
$destinationPath = $destinationPath.TrimEnd("\");
[Reflection.Assembly]::LoadWithPartialName('System.IO.Compression.FileSystem');
$zipfile = [IO.Compression.ZipFile]::OpenRead($zipFilePath);
# Determine how many top level entries there are.
$ziplevel0files = #{};
$zipfile.Entries | foreach {
$s = ($_.FullName.TrimEnd("/") -split "/")[0];
if ($ziplevel0files.ContainsKey($s)) {
$ziplevel0files[$s] = $ziplevel0files[$s] + 1;
} else {
$ziplevel0files[$s] = 0;
}
}
if ($ziplevel0files.count -ne 1) {
Write-Host "Zip archives are (at this time) expected to contain one top-level directory, and all content within it.";
return 1; # Failure
}
$zipDirPath = Join-Path -Path $destinationPath -ChildPath $ziplevel0files.Keys[0];
# If the directory does not exist, extract the zip archive into the current folder.
if (Test-Path -LiteralPath $zipDirPath) {
Write-Host "Top-level extraction directory already exists.";
return 2; # Failure
}
$zipfile.Entries | foreach {
$extractFilePath = Join-Path -Path $destinationPath -ChildPath $_.FullName;
$extractFileDirPath = Split-Path -Parent $extractFilePath;
# Skip the top-level directory everything comes under.
if ($extractFileDirPath -ne $destinationPath) {
if (-not (Test-Path -LiteralPath $extractFileDirPath -PathType Container)) {
New-Item -Path $extractFileDirPath -Type Directory | Out-Null;
}
# Sometimes a directory comes after a file within the directory (the latter causes it to be created implicitly above).
if (-not $extractFilePath.EndsWith("\")) {
try {
[IO.Compression.ZipFileExtensions]::ExtractToFile($_, $extractFilePath, $true);
} catch {
Write-Host "Failed to extract file:" $extractFilePath;
return 3; # Failure
}
}
}
}
return 0; # Success
}
# Anything that calls should execute the powershell and set the parameters.
$fn = (Get-ChildItem Env:fn).Value;
$f = (get-item -path function:$fn);
Write-Host "sss1" $fn;
if ($fn -eq "Archive-Extract") {
Write-Host "sss2";
$archivepath = (Get-ChildItem Env:fnp0).Value;
$destinationpath = (Get-ChildItem Env:fnp1).Value;
$err = & $f.ScriptBlock $archivepath $destinationpath;
exit $err;
} else {
Write-Host "sss3";
Write-Error "Failed to match function: "+ $fn;
exit 1000;
}
What needs to be added to the BAT script to execute the same as when the code is executed line-by-line on the command-line?
EDIT: Note that when I adapted this script to follow the multi-line powerscript commenting approach recommended by npocmaka, the existing code above based on more but with no skipped line numbers worked. However, I am not entirely convinced that this solves the problem. I believe the above code worked fine at one point, as is, and worked for the person who came up with the original base code to begin with.

Answer 1

<# :
#echo off
echo --START POWERSHELL--
:: $cmdargs variable will contain the command line.
powershell $cmdargs="""%*""";$exp=$(Get-Content '%~f0') -replace """`n""",""";""" ;invoke-expression """$exp"""
echo --START BATCH--
dir *.bat
pause & exit /b
#>
Write-Host "sss";
exit;
Try this.I think it's better way for hybridization and allows something like argument passing to powershell script.Just have in mind that every line should be terminated with ;