File size: 3,559 Bytes
8c763fb | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | // Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
#nullable enable
using System.Management.Automation;
using System.Management.Automation.Runspaces;
namespace Microsoft.PowerShell
{
/// <summary>
/// This class provides an entry point which is called
/// to transfer control to console host implementation.
/// </summary>
public static class ConsoleShell
{
/// <summary>Entry point in to ConsoleShell. This method is called by main of minishell.</summary>
/// <param name="bannerText">Banner text to be displayed by ConsoleHost.</param>
/// <param name="helpText">Help text for minishell. This is displayed on 'minishell -?'.</param>
/// <param name="args">Commandline parameters specified by user.</param>
/// <returns>An integer value which should be used as exit code for the process.</returns>
public static int Start(string? bannerText, string? helpText, string[] args)
{
return StartImpl(
initialSessionState: InitialSessionState.CreateDefault2(),
bannerText,
helpText,
args,
issProvided: false);
}
/// <summary>Entry point in to ConsoleShell. Used to create a custom Powershell console application.</summary>
/// <param name="initialSessionState">InitialSessionState to be used by the ConsoleHost.</param>
/// <param name="bannerText">Banner text to be displayed by ConsoleHost.</param>
/// <param name="helpText">Help text for the shell.</param>
/// <param name="args">Commandline parameters specified by user.</param>
/// <returns>An integer value which should be used as exit code for the process.</returns>
public static int Start(InitialSessionState initialSessionState, string? bannerText, string? helpText, string[] args)
{
return StartImpl(
initialSessionState,
bannerText,
helpText,
args,
issProvided: true);
}
/// <summary>
/// Implementation of entry point to ConsoleShell.
/// Used to create a custom Powershell console application.
/// </summary>
/// <param name="initialSessionState">InitialSessionState to be used by the ConsoleHost.</param>
/// <param name="bannerText">Banner text to be displayed by ConsoleHost.</param>
/// <param name="helpText">Help text for the shell.</param>
/// <param name="args">Commandline parameters specified by user.</param>
/// <param name="issProvided">True when the InitialSessionState object is provided by caller.</param>
/// <returns>An integer value which should be used as exit code for the process.</returns>
private static int StartImpl(
InitialSessionState initialSessionState,
string? bannerText,
string? helpText,
string[] args,
bool issProvided)
{
if (initialSessionState == null)
{
throw PSTraceSource.NewArgumentNullException(nameof(initialSessionState));
}
if (args == null)
{
throw PSTraceSource.NewArgumentNullException(nameof(args));
}
ConsoleHost.ParseCommandLine(args);
ConsoleHost.DefaultInitialSessionState = initialSessionState;
return ConsoleHost.Start(bannerText, helpText, issProvided);
}
}
}
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