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CommandUtil C# API tweaks (#30453)

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* changed RunCommand result from Tuple to CommandResult for easier future extensibility
* moved Win32 Dictionary->multi-null-string environment munging into C#
This commit is contained in:
Matt Davis 2017-09-15 23:09:15 -07:00 committed by GitHub
parent 035a17e8aa
commit 0e70057f56
1 changed files with 33 additions and 25 deletions
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58
lib/ansible/module_utils/powershell/Ansible.ModuleUtils.CommandUtil.psm1
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@ -3,6 +3,7 @@
$process_util = @"
using System;
using System.Collections;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
@ -210,7 +211,14 @@ namespace Ansible
return sbOut.ToString();
}
public static Tuple<string, string, uint> RunCommand(string lpApplicationName, string lpCommandLine, string lpCurrentDirectory, string stdinInput, string environmentBlock)
public class CommandResult
{
public string StandardOut { get; internal set; }
public string StandardError { get; internal set; }
public uint ExitCode { get; internal set; }
}
public static CommandResult RunCommand(string lpApplicationName, string lpCommandLine, string lpCurrentDirectory, string stdinInput, IDictionary environment)
{
UInt32 startup_flags = CREATE_UNICODE_ENVIRONMENT | CREATE_NEW_CONSOLE | EXTENDED_STARTUPINFO_PRESENT;
STARTUPINFOEX si = new STARTUPINFOEX();
@ -277,11 +285,21 @@ namespace Ansible
// string here, we need to convert it
if (lpCurrentDirectory == "")
lpCurrentDirectory = null;
StringBuilder environmentString = null;
if(environment != null && environment.Count > 0)
{
environmentString = new StringBuilder();
foreach (DictionaryEntry kv in environment)
environmentString.AppendFormat("{0}={1}\0", kv.Key, kv.Value);
environmentString.Append('\0');
}
// Create the environment block if set
IntPtr lpEnvironment = IntPtr.Zero;
if (environmentBlock != "")
lpEnvironment = Marshal.StringToHGlobalUni(environmentBlock);
if (environmentString != null)
lpEnvironment = Marshal.StringToHGlobalUni(environmentString.ToString());
// Create new process and run
StringBuilder argument_string = new StringBuilder(lpCommandLine);
@ -316,7 +334,12 @@ namespace Ansible
GetProcessOutput(stdout, stderr, out stdout_str, out stderr_str);
uint rc = GetProcessExitCode(pi.hProcess);
return Tuple.Create(stdout_str, stderr_str, rc);
return new CommandResult
{
StandardOut = stdout_str,
StandardError = stderr_str,
ExitCode = rc
};
}
private static void GetProcessOutput(StreamReader stdoutStream, StreamReader stderrStream, out string stdout, out string stderr)
@ -361,7 +384,7 @@ Function Load-CommandUtils {
# [Ansible.CommandUtil]::RunCommand(string lpApplicationName, string lpCommandLine, string lpCurrentDirectory, string stdinInput, string environmentBlock)
#
# there are also numerous P/Invoke methods that can be called if you are feeling adventurous
Add-Type -TypeDefinition $process_util -IgnoreWarnings
Add-Type -TypeDefinition $process_util -IgnoreWarnings -Debug:$false
}
Function Get-ExecutablePath($executable, $directory) {
@ -412,29 +435,14 @@ Function Run-Command {
$arguments = [Ansible.CommandUtil]::ParseCommandLine($command)
$executable = Get-ExecutablePath -executable $arguments[0] -directory $working_directory
# set the extra environment variables
$environment_string = $null
if ($environment.Count -gt 0) {
$environment_string = ""
}
foreach ($environment_entry in $environment.GetEnumerator()){
$environment_key = $environment_entry.Name
$environment_value = $environment_entry.Value
$environment_string += "$environment_key=$environment_value`0"
}
if ($environment_string) {
$environment_string += "`0"
}
# run the command and get the results
$command_result = [Ansible.CommandUtil]::RunCommand($executable, $command, $working_directory, $stdin, $environment_string)
$command_result = [Ansible.CommandUtil]::RunCommand($executable, $command, $working_directory, $stdin, $environment)
# RunCommand returns a tuple, we will convert to a hashtable
return ,@{
executable = $executable
stdout = $command_result.Item1
stderr = $command_result.Item2
rc = $command_result.Item3
stdout = $command_result.StandardOut
stderr = $command_result.StandardError
rc = $command_result.ExitCode
}
}