/// <summary>
/// Opens a remote file, fetching its contents if necessary.
/// </summary>
/// <param name="remoteFilePath">
/// The remote file path to be opened.
/// </param>
/// <param name="runspaceDetails">
/// The runspace from which where the remote file will be fetched.
/// </param>
/// <returns>
/// The local file path where the remote file's contents have been stored.
/// </returns>
public async Task <string> FetchRemoteFileAsync(
string remoteFilePath,
RunspaceDetails runspaceDetails)
{
string localFilePath = null;
if (!string.IsNullOrEmpty(remoteFilePath))
{
try
{
RemotePathMappings pathMappings = this.GetPathMappings(runspaceDetails);
localFilePath = this.GetMappedPath(remoteFilePath, runspaceDetails);
if (!pathMappings.IsRemotePathOpened(remoteFilePath))
{
// Does the local file already exist?
if (!File.Exists(localFilePath))
{
// Load the file contents from the remote machine and create the buffer
PSCommand command = new PSCommand();
command.AddCommand("Microsoft.PowerShell.Management\\Get-Content");
command.AddParameter("Path", remoteFilePath);
command.AddParameter("Raw");
command.AddParameter("Encoding", "Byte");
byte[] fileContent =
(await this.powerShellContext.ExecuteCommandAsync <byte[]>(command, false, false).ConfigureAwait(false))
.FirstOrDefault();
if (fileContent != null)
{
RemoteFileManagerService.StoreRemoteFile(localFilePath, fileContent, pathMappings);
}
else
{
this.logger.LogWarning(
$"Could not load contents of remote file '{remoteFilePath}'");
}
}
}
}
catch (IOException e)
{
this.logger.LogError(
$"Caught {e.GetType().Name} while attempting to get remote file at path '{remoteFilePath}'\r\n\r\n{e.ToString()}");
}
}
return(localFilePath);
}
private string StoreRemoteFile(
string remoteFilePath,
byte[] fileContent,
RunspaceDetails runspaceDetails)
{
RemotePathMappings pathMappings = this.GetPathMappings(runspaceDetails);
string localFilePath = pathMappings.GetMappedPath(remoteFilePath);
RemoteFileManagerService.StoreRemoteFile(
localFilePath,
fileContent,
pathMappings);
return(localFilePath);
}