Private/SSM/Get-ContentFromS3.ps1
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function Get-ContentFromS3 { <# .SYNOPSIS Get raw text content from a file in S3 .PARAMETER BucketName Bucket name .PARAMETER Key Key identifying file .PARAMETER ExpectContent If true, wait longer for key to be present #> param ( [Parameter(ParameterSetName = 'ByName')] [string]$BucketName, [Parameter(ParameterSetName = 'ByName')] [string]$Key, [Parameter(ParameterSetName = 'ByUri')] [Uri]$S3Url, [bool]$ExpectContent = $true ) $tempfile = [IO.Path]::GetTempFileName() $lastSize = 0 $thisSize = 0 if ($PSCmdLet.ParameterSetName -eq 'ByUri') { $s3 = $S3Url | Split-S3Url $BucketName = $s3.BucketName $Key = $s3.Key } # There is sometimes a delay in the results being fully streamed for ($i = 0; $i -lt 30; ++$i) { $obj = Get-S3Object -BucketName $BucketName -Key $key if ($obj) { $thisSize = $obj.Size } if (($lastSize -gt 0 -and $thisSize -eq $lastSize) -or ($thisSize -eq 0 -and $i -gt 3 -and -not $ExpectContent)) { break } $lastSize = $thisSize Start-Sleep -Seconds 5 } try { Read-S3Object -BucketName $BucketName -Key $Key -File $tempfile | Out-Null $text = Get-Content -Raw $tempfile return $text } catch { return [string]::Empty } finally { if (Test-Path -Path $tempFile -PathType Leaf) { Remove-Item $tempfile } } } |