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Octokit API Exception: "is at xx but expected yy"

Im working on a small school project where i need to update an file from my github repo.
Everything worked fine until i got an error out of nowhere.
I am using Octokit .net with a C# WPF Application. Here the Exception:
Octokit.ApiException: "is at 1ce907108c4582d5a0986d3a37b2777e271a0105 but expected 47fa57debd39ee6a63f24d39e9513f87814a5ed6"
I dont know why this error shows up, because i didn't change anything before the error happend and now nothing works anymore. Can someone help me with this?
Here the code:
private static async void UpdateFile(string fileName, string fileContent)
{
var ghClient = new GitHubClient(new ProductHeaderValue(HEADER));
ghClient.Credentials = new Credentials(API_KEY);
// github variables
var owner = OWNER;
var repo = REPO;
var branch = "main";
var targetFile = fileName;
try
{
// try to get the file (and with the file the last commit sha)
var existingFile = await ghClient.Repository.Content.GetAllContentsByRef(owner, repo, targetFile, branch);
// update the file
var updateChangeSet = await ghClient.Repository.Content.UpdateFile(owner, repo, targetFile,
new UpdateFileRequest("API Config Updated", fileContent, existingFile.First().Sha, branch));
}
catch (Octokit.NotFoundException)
{
// if file is not found, create it
var createChangeSet = await ghClient.Repository.Content.CreateFile(owner, repo, targetFile, new CreateFileRequest("API Config Created", fileContent, branch));
}
}

I found the issue after a bit of experimenting.
I updated 3 files at the same time, it turns out Octokit can't handle more than 1 request at the same time...
If you're stuck on this problem too, just add a delay of ~2 seconds before posting a new request.

The file being use by another process when i add it programatically by SharpSvn

We are using SharpSvn to add SolidWorks files programatically to SVN tortoise.
When file is open in SolidWorks, i want to add it to SVN by code without closing file.
I used code below
var SvnResult = new SvnResult();
var FullPath = SvnHelper.FileCombine(FileName);
try
{
var SvnArg = new SvnAddArgs();
SvnArg.Force = true;
SvnArg.Depth = SvnDepth.Infinity;
//
SvnClient.Add(FullPath, SvnArg);
SvnResult.Message = "Success.";
SvnResult.Status = true;
//
return SvnResult;
}
catch (SvnException exc)
{
SvnResult.Message = exc.Message;
SvnResult.Status = false;
return SvnResult;
}
and i get error like this :
The process cannot access the file because it is being used by another process.
How can i add it to SVN without closing file?
Regards,

We solved the problem. At first we used TortoiseSvn.exe command lines to add and commit the file but when we used to send commit command, svn Dialog form was raised. For solving this problem I install “Command Line Client Tools” from the svn setup. By installing this option you can find svn.exe under svn path “C:\Program Files\TortoiseSVN\bin”.
I add this path to Environment Variables and then use svn command lines to add and commit while file is open.
public SvnResult CommitFiles_BySVNCmd(string filePath)
{
var fullPath = SvnHelper.FileCombine(filePath);
var svnResult = new SvnResult();
try
{
// svn add command
var status = GetStatus(fullPath);
//
if (status.LocalContentStatus == SvnStatus.NotVersioned)
{
var argumentsAdd = $#"add {fullPath}";
ProcessStart(argumentsAdd);
}
// svn commit command
var argumentsCommit = $#"commit -m Commited_Automatically {fullPath}";
ProcessStart(argumentsCommit);
svnResult.Message = "Success
svnResult.Status = true;
return svnResult;
}
catch (SvnException se)
{
svnResult.Message = se.Message;
svnResult.Status = false;
return svnResult;
}
}
private void ProcessStart(string arguments)
{
var processInfo = new ProcessStartInfo("svn", arguments);
processInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
Process.Start(processInfo);
}
Best Regards,

Scan uploaded files C# ASP.net

I'm trying to do a virus scan on uploaded files.
I have no control over the installed virus scanner, the product hosted by multiple parties with different scanners.
I tried the following library but it always returns VirusNotFound on the eicar file.
https://antivirusscanner.codeplex.com/
Do you know any other solutions?

ClamAV has pretty bad detection scores.
VirusTotal is not on premises.
I decided to create CLI wrappers for multiple scanners, nuget packages can be found here: https://www.nuget.org/packages?q=avscan
And its documentation and source code available at https://github.com/yolofy/AvScan

I used this library for .net (It uses the VirusTotal public api):
https://github.com/Genbox/VirusTotal.NET
A little example from github :
static void Main(string[] args)
{
VirusTotal virusTotal = new VirusTotal("INSERT API KEY HERE");
//Use HTTPS instead of HTTP
virusTotal.UseTLS = true;
FileInfo fileInfo = new FileInfo("testfile.txt");
//Create a new file
File.WriteAllText(fileInfo.FullName, "This is a test file!");
//Check if the file has been scanned before.
Report fileReport = virusTotal.GetFileReport(fileInfo).First();
bool hasFileBeenScannedBefore = fileReport.ResponseCode == 1;
if (hasFileBeenScannedBefore)
{
Console.WriteLine(fileReport.ScanId);
}
else
{
ScanResult fileResults = virusTotal.ScanFile(fileInfo);
Console.WriteLine(fileResults.VerboseMsg);
}
}
A full example can be found here :
https://github.com/Genbox/VirusTotal.NET/blob/master/VirusTotal.NET%20Client/Program.cs

Clam AV is pretty good.
https://www.clamav.net/downloads
C# Api here:
https://github.com/michaelhans/Clamson/

I just tried various ways, But some didn't work.
Then I decided to use ESET NOD32 command line tools .
It works fine for me:
public bool Scan(string filename)
{
var result = false;
try
{
Process process = new Process();
var processStartInfo = new ProcessStartInfo(#"C:/Program Files/ESET/ESET Security/ecls.exe")
{
Arguments = $" \"{filename}\"",
CreateNoWindow = true,
ErrorDialog = false,
WindowStyle = ProcessWindowStyle.Hidden,
UseShellExecute = false
};
process.StartInfo = processStartInfo;
process.Start();
process.WaitForExit();
if (process.ExitCode == 0) //if it doesn't exist virus ,it returns 0 ,if not ,it returns 1
{
result = true;
}
}
catch (Exception)
{ //nothing;
}
return result;
}

How do I execute and return the results of a python script in c#?

How do I execute and return the results of a python script in c#?
I am trying to run a python script from my controller.
I have python.exe setup in a virtual environment folder created with the virtualenv command.
So just for testing purposes at the moment I would like to just return resulting string from my phython script:
# myscript.py
print "test"
And display that in a view in my asp.net mvc app.
I got the run_cmd function from a related stackoverflow question.
I've tried adding the -i option to force interactive mode and calling process.WaitForExit() with no luck.
namespace NpApp.Controllers
{
public class HomeController : Controller
{
public ActionResult Index(string returnUrl)
{
ViewBag.ReturnUrl = returnUrl;
ViewBag.textResult = run_cmd("-i C:/path/to/virtualenv/myscript.py", "Some Input");
return View();
}
private string run_cmd(string cmd, string args)
{
ProcessStartInfo start = new ProcessStartInfo();
start.FileName = #"C:/path/to/virtualenv/Scripts/python.exe";
start.CreateNoWindow = true;
start.Arguments = string.Format("{0} {1}", cmd, args);
start.UseShellExecute = false;
start.RedirectStandardOutput = true;
using (Process process = Process.Start(start))
{
using (StreamReader reader = process.StandardOutput)
{
string result = reader.ReadToEnd();
//Console.Write(result);
process.WaitForExit();
return result;
}
}
}
}
}
It seems like myscript.py never even runs. But I get no errors, just a blank variable in my view.
Edit:
I had tried to simplify the above stuff because I thought it would be easier to explain and get an answer. Eventually I do need to use a package called "nameparser" and store the result of passed name argument into a database. But if I can just get the run_cmd to return a string I think I can take care of the rest of it. This is why I think the rest api and IronPython mentioned in the comments may not work for me here.

Ok, I figured out what the issue was thanks to some leads from the comments. Mainly it was the spaces in the path to the python.exe and the myscript.py. Turns out I didn't need -i or process.WaitForExit(). I just moved the python virtual environment into a path without spaces and everything started working. Also made sure that the myscript.py file was executable.
This was really helpful:
string stderr = process.StandardError.ReadToEnd();
string stdout = process.StandardOutput.ReadToEnd();
Debug.WriteLine("STDERR: " + stderr);
Debug.WriteLine("STDOUT: " + stdout);
That shows the python errors and output in the Output pane in Visual Studio.

TFS / File Checkout from C#

I don't have a great deal of experience with TFS, other than using it for source control. I am working on a C# application that will need to modify files that are being controlled by TFS. From within my C# application, how can I check out a file that is controlled via TFS?
Thanks - Randy

You can use PendEdit to make your files writables, make your changes to it, then you add it to the pending changes, and finally check it in.
Here is some code where a folder structure is created and then checked in (Very similar to what you will need).
private static void CreateNodes(ItemCollection nodes)
{
using (var tfs = TeamFoundationServerFactory.GetServer("http://tfsserver:8080"))
{
var versionControlServer = tfs.GetService(typeof (VersionControlServer)) as VersionControlServer;
versionControlServer.NonFatalError += OnNonFatalError;
// Create a new workspace for the currently authenticated user.
var workspace = versionControlServer.CreateWorkspace("Temporary Workspace", versionControlServer.AuthenticatedUser);
try
{
// Check if a mapping already exists.
var workingFolder = new WorkingFolder("$/testagile", #"c:\tempFolder");
// Create the mapping (if it exists already, it just overides it, that is fine).
workspace.CreateMapping(workingFolder);
// Go through the folder structure defined and create it locally, then check in the changes.
CreateFolderStructure(workspace, nodes, workingFolder.LocalItem);
// Check in the changes made.
workspace.CheckIn(workspace.GetPendingChanges(), "This is my comment");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
// Cleanup the workspace.
workspace.Delete();
// Remove the temp folder used.
Directory.Delete("tempFolder", true);
}
}
}
private static void CreateFolderStructure(Workspace workspace, ItemCollection nodes, string initialPath)
{
foreach (RadTreeViewItem node in nodes)
{
var newFolderPath = initialPath + #"\" + node.Header;
Directory.CreateDirectory(newFolderPath);
workspace.PendAdd(newFolderPath);
if (node.HasItems)
{
CreateFolderStructure(workspace, node.Items, newFolderPath);
}
}
}

Using the other solution gave me permission problems.
Here's an alternative way to checkout your files using tf.exe:
//Checkout file
Process proc = new Process();
proc.StartInfo =
new ProcessStartInfo(
#"C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\tf.exe",
string.Format("checkout \"{0}\"", fileLocation)
);
proc.StartInfo.UseShellExecute = false;
proc.Start();
proc.WaitForExit();

For those looking to use the first solution and resolve the permission issue you can use the following code to use the current credentials, this replaces the "TeamFoundationServerFactory.GetServer" call then use the TfsTeamProjectCollection (tmPrjColl) to get the VersionControlServer:
using Microsoft.TeamFoundation.Client;
using MTVC = Microsoft.TeamFoundation.VersionControl.Client;
using MVSC = Microsoft.VisualStudio.Services.Common;
MVSC.VssCredentials creds = new MVSC.VssCredentials(new MVSC.WindowsCredential(true));
using (TfsTeamProjectCollection tmPrjColl = new TfsTeamProjectCollection(new Uri("<source control URL>"), creds))
{
MTVC.VersionControlServer verCtrlSvr = tmPrjColl.GetService<MTVC.VersionControlServer>();
...
}