I just found out about NRefactory 5 and I would guess, that it is the most suitable solution for my current problem. At the moment I'm developing a little C# scripting application for which I would like to provide code completion. Until recently I've done this using the "Roslyn" project from Microsoft. But as the latest update of this project requires .Net Framework 4.5 I can't use this any more as I would like the app to run under Win XP as well. So I have to switch to another technology here.
My problem is not the compilation stuff. This can be done, with some more effort, by .Net CodeDomProvider as well. The problem ist the code completion stuff. As far as I know, NRefactory 5 provides everything that is required to provide code completion (parser, type system etc.) but I just can't figure out how to use it. I took a look at SharpDevelop source code but they don't use NRefactory 5 for code completion there, they only use it as decompiler. As I couldn't find an example on how to use it for code completion in the net as well I thought that I might find some help here.
The situation is as follows. I have one single file containing the script code. Actually it is not even a file but a string which I get from the editor control (by the way: I'm using AvalonEdit for this. Great editor!) and some assemblies that needs to get referenced. So, no solution files, no project files etc. just one string of source code and the assemblies.
I've taken a look at the Demo that comes with NRefactory 5 and the article on code project and got up with something like this:
var unresolvedTypeSystem = syntaxTree.ToTypeSystem();
IProjectContent pc = new CSharpProjectContent();
// Add parsed files to the type system
pc = pc.AddOrUpdateFiles(unresolvedTypeSystem);
// Add referenced assemblies:
pc = pc.AddAssemblyReferences(new CecilLoader().LoadAssemblyFile(
System.Reflection.Assembly.GetAssembly(typeof(Object)).Location));
My problem is that I have no clue on how to go on. I'm not even sure if it is the right approach to accomplish my goal. How to use the CSharpCompletionEngine? What else is required? etc. You see there are many things that are very unclear at the moment and I hope you can bring some light into this.
Thank you all very much in advance!
I've just compiled and example project that does C# code completion with AvalonEdit and NRefactory.
It can be found on Github here.
Take a look at method ICSharpCode.NRefactory.CSharp.CodeCompletion.CreateEngine. You need to create an instance of CSharpCompletionEngine and pass in the correct document and the resolvers. I managed to get it working for CTRL+Space compltition scenario. However I am having troubles with references to types that are in other namespaces. It looks like CSharpTypeResolveContext does not take into account the using namespace statements - If I resolve the references with CSharpAstResolver, they are resolved OK, but I am unable to correctly use this resolver in code completition scenario...
UPDATE #1:
I've just managed to get the working by obtaining resolver from unresolved fail.
Here is the snippet:
var mb = new DefaultCompletionContextProvider(doc, unresolvedFile);
var resolver3 = unresolvedFile.GetResolver(cmp, loc); // get the resolver from unresolvedFile
var engine = new CSharpCompletionEngine(doc, mb, new CodeCompletionBugTests.TestFactory(resolver3), pctx, resolver3.CurrentTypeResolveContext );
Update #2:
Here is the complete method. It references classes from unit test projects, sou you would need to reference/copy them into your project:
public static IEnumerable<ICompletionData> DoCodeComplete(string editorText, int offset) // not the best way to put in the whole string every time
{
var doc = new ReadOnlyDocument(editorText);
var location = doc.GetLocation(offset);
string parsedText = editorText; // TODO: Why there are different values in test cases?
var syntaxTree = new CSharpParser().Parse(parsedText, "program.cs");
syntaxTree.Freeze();
var unresolvedFile = syntaxTree.ToTypeSystem();
var mb = new DefaultCompletionContextProvider(doc, unresolvedFile);
IProjectContent pctx = new CSharpProjectContent();
var refs = new List<IUnresolvedAssembly> { mscorlib.Value, systemCore.Value, systemAssembly.Value};
pctx = pctx.AddAssemblyReferences(refs);
pctx = pctx.AddOrUpdateFiles(unresolvedFile);
var cmp = pctx.CreateCompilation();
var resolver3 = unresolvedFile.GetResolver(cmp, location);
var engine = new CSharpCompletionEngine(doc, mb, new CodeCompletionBugTests.TestFactory(resolver3), pctx, resolver3.CurrentTypeResolveContext );
engine.EolMarker = Environment.NewLine;
engine.FormattingPolicy = FormattingOptionsFactory.CreateMono();
var data = engine.GetCompletionData(offset, controlSpace: false);
return data;
}
}
Hope it helps,
Matra
NRefactory 5 is being used in SharpDevelop 5. The source code for SharpDevelop 5 is currently available in the newNR branch on github. I would take a look at the CSharpCompletionBinding class which has code to display a completion list window using information from NRefactory's CSharpCompletionEngine.
Related
Background
What I'm trying to do is to have a scoped variable of one of my models in the xaml.
In my workflow project "MyProject.Workflows" I have created model classes, code activities and Xaml files. They are all under same namespace. In another project ("Engine"), I load and execute these workflows.
To load the workflows in the "Engine", I use ActivityXamlServices with ActivityXamlServicesSettings including CompileExpressions = true.
When loading the ActivityXamlServices, I use a XamlXmlReader with XamlXmlReaderSettings where I actually point to the "MyProject.Workflows" dll.
Since Both these projects are in the same solution I actually referred MyProject.Workflows in the "Engine".
Because Earlier, they were in different solutions, So when I tried to do this It gave me It cant find the "MyProject.Workflows" dll even though I point it in the XamlXmlReaderSettings.
Then I tried to load the dll to the app domain and then it worked.But I did not want to deal with App Domains so I decided to get both projects under one solution so I can refer the "MyProject.Workflows" in the "Engine".
Issue:
If I use one of those models inside of the Xaml as an expression like "Assign Activity" the Workflow isn't getting compiled when I try to execute this.
For example if I use this in an "Assign" activity having a scoped variable of type MyObject
Newtonsoft.Json.JsonConvert.DeserializeObject<MyProject.Workflows.Models.MyObject>(inputString);
I will get the below error message when I run the workflow.
NotSupportedException:'Expression Activity type 'CSharpValue`1' requires compilation in order to run. Please ensure that the workflow has been compiled.
If I remove these objects and just deal with strings or ints, it works fine.
Things I found in my research:
I found this was a bug in .Net Framework 4.5. But Im using 4.6
Even though I used CompileExpressions = true , I tried this compile method I found. But did not change a thing.
private static void Compile(DynamicActivity dynamicActivity)
{
TextExpressionCompilerSettings settings = new TextExpressionCompilerSettings
{
Activity = dynamicActivity,
Language = "C#",
ActivityName = dynamicActivity.Name.Split('.').Last() + "_CompiledExpressionRoot",
ActivityNamespace = string.Join(".", dynamicActivity.Name.Split('.').Reverse().Skip(1).Reverse()),
RootNamespace = null,
GenerateAsPartialClass = false,
AlwaysGenerateSource = true,
};
TextExpressionCompilerResults results =
new TextExpressionCompiler(settings).Compile();
if (results.HasErrors)
{
throw new Exception("Compilation failed.");
}
ICompiledExpressionRoot compiledExpressionRoot =
Activator.CreateInstance(results.ResultType,
new object[] { dynamicActivity }) as ICompiledExpressionRoot;
CompiledExpressionInvoker.SetCompiledExpressionRootForImplementation(
dynamicActivity, compiledExpressionRoot);
}
I read that some people faced this problem and they had to actually move the models to a diffrent namespace. I did that too. Didn't fix the problem.
My Xaml file has this entry added at the top.
xmlns:local="clr-namespace:MyProject.Workflows.Models"
Can someone please help me to get through this?
First of, I am completely new to octopus client, used it for the first time just before posting this.
So, I've been landed with this project to update the version number on a webpage monitoring some of our octopus deployed projects. I have been looking around the octopus client and not really gotten anywhere. The best I have so far is:
OctopusServerEndpoint endPoint = new OctopusServerEndpoint(server, apiKey);
OctopusRepository repo = new OctopusRepository(endPoint);
var releases = repo.Releases.FindAll();
From these releases I can get the ProjectId and even the Version, the issue is that releases is 600 strong and I am only looking for 15 of them.
The existing code I have to work from used to parse the version from local files so that is all out the window. Also, the existing code only deals with the actual names of the projects, like "AWOBridge", not their ProjectId, which is "Projects-27".
Right now my only option is to manually write up a keyList or map to correlate the names I have with the IDs in the octopus client, which I of course rather not since it is not very extendable or good code practice in my opinion.
So if anyone has any idea on how to use the names directly with octopus client and get the version number from that I would very much appriciate it.
I'll be getting down into octopus client while waiting. Let's see if I beat you to it!
Guess I beat you to it!
I'll just leave an answer here if anyone ever has the same problem.
I ended up using the dashboardto get what I needed:
OctopusServerEndpoint endPoint = new OctopusServerEndpoint(server, apiKey);
OctopusRepository repo = new OctopusRepository(endPoint);
DashboardResource dash = repo.Dashboards.GetDashboard();
List<DashboardItemResource> items = dash.Items;
DashboardItemResource item = new DashboardItemResource();
List<DashboardProjectResource> projs = dash.Projects;
var projID = projs.Find(x => x.Name == projectName).Id;
item = items.Find(x => x.ProjectId == projID && x.IsCurrent == true);
The dashboard is great since it contains all the info that the web dashboard shows. So you can use Project, Release, Deployment and Environment with all the information they contain.
Hope this helps someone in the future!
I'm using LINQPad to run C# snippets for Octopus automation using the Octopus Client library and I have come up with following to get any version of a project making use of Regular expression pattern. It works quite well if you use Pre-release semantic versioning.
For example to get latest release for a project:
var project = Repo.Projects.FindByName("MyProjectName");
var release = GetReleaseForProject(project);
To get specific release use that has 'rc1' in the version for example (also useful if you use source code branch name in the version published to Octopus:
var release = GetReleaseForProject(project, "rc1");
public ReleaseResource GetReleaseForProject(ProjectResource project, string versionPattern = "")
{
// create compiled regex expression to use for search
var regex = new Regex(versionPattern, RegexOptions.Compiled | RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);
var releases = Repo.Projects.GetReleases(project);
if (!string.IsNullOrWhiteSpace(versionPattern) && !releases.Items.Any(r => regex.IsMatch(r.Version)))
{
return null;
}
return (!string.IsNullOrWhiteSpace(versionPattern)) ? releases.Items.Where(r => regex.IsMatch(r.Version))?.First() : releases.Items?.First();;
}
I'm new to extending Visual Studio and I'm trying to find way to find which source control system is used by current solution.
I created VsPackage project and I am able to obtain reference to solution via IVsSolution and to hook up to solution events via IVsSolutionEvents.
Inside OnAfterSolutionOpen (or possibly some other if there's an alternative) I would like to act differently basing on whether the solution uses TFS or Git or something else. How can I obtain this information?
I plan to support as many Visual Studio versions as possible, but if it isn't possible I would like to support at least VS2012 and higher.
Ok, after several hours of digging I've found a solution to this. Thanks to the article of Mark Rendle and the source code for his NoGit extension I've found, that the list of registered source control plugins is located in registry: HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\12.0_Config\SourceControlProviders (in case of VS 2013).
So now, we can have both plugin guid, and the name of the provider. This sample code can fetch those values:
var key = #"Software\Microsoft\VisualStudio\" + "12.0" + #"_Config\SourceControlProviders";
var subkey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(key);
var providerNames = subkey.GetSubKeyNames().Dump();
var dict = new Dictionary<Guid, String>();
foreach (var provGuidString in subkey.GetSubKeyNames())
{
var provName = (string)subkey.OpenSubKey(provGuidString).GetValue("");
dict.Add(Guid.Parse(provGuidString), provName);
}
Now, there are two ways I've found to obtain guid of currently active provider.
important update: Apparently the second way of obtaining currently active plugin does not work as expected. I strongly advise using first solution.
This is the way that bases on the extension mentioned earlier:
var getProvider = GetService(typeof(IVsRegisterScciProvider)) as IVsGetScciProviderInterface;
Guid pGuid;
getProvider.GetSourceControlProviderID(out pGuid);
Or we can just go to HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\12.0\CurrentSourceControlProvider and get the default value of this key:
var key2 = #"Software\Microsoft\VisualStudio\12.0\CurrentSourceControlProvider";
var guidString = (string)Microsoft.Win32.Registry.CurrentUser.OpenSubKey(key2).GetValue("");
var currentGuid = Guid.Parse(guidString);
Now we just take var activeProviderName = dict[currentGuid]; and that's all.
My plan:
I'm trying to setup my C# project to communicate with Nodebox to call a certain function which populates a graph and draws it in a new window.
Current situation: [fixed... see Update2]
I have already included all python-modules needed, but im still getting a
Library 'GL' not found
it seems that the pyglet module needs a reference to GL/gl.h, but can't find it due to IronPython behaviour.
Requirement:
The project needs to stay as small as possible without installing new packages. Thats why i have copied all my modules into the project-folder and would like to keep it that or a similar way.
My question:
Is there a certain workaround for my problem or a fix for the library-folder missmatch.
Have read some articles about Tao-Opengl and OpenTK but can't find a good solution.
Update1:
Updated my sourcecode with a small pyglet window-rendering example. Problem is in pyglet and referenced c-Objects. How do i include them in my c# project to be called? No idea so far... experimenting alittle now. Keeping you updated.
SampleCode C#:
ScriptRuntimeSetup setup = Python.CreateRuntimeSetup(null);
ScriptRuntime runtime = new ScriptRuntime(setup);
ScriptEngine engine = Python.GetEngine(runtime);
ScriptSource source = engine.CreateScriptSourceFromFile("test.py");
ScriptScope scope = engine.CreateScope();
source.Execute(scope);
SampleCode Python (test.py):
from nodebox.graphics import *
from nodebox.graphics.physics import Vector, Boid, Flock, Obstacle
flock = Flock(50, x=-50, y=-50, width=700, height=400)
flock.sight(80)
def draw(canvas):
canvas.clear()
flock.update(separation=0.4, cohesion=0.6, alignment=0.1, teleport=True)
for boid in flock:
push()
translate(boid.x, boid.y)
scale(0.5 + boid.depth)
rotate(boid.heading)
arrow(0, 0, 15)
pop()
canvas.size = 600, 300
def main(canvas):
canvas.run(draw)
Update2:
Line 139 [pyglet/lib.py] sys.platform is not win32... there was the error. Fixed it by just using the line:
from pyglet.gl.lib_wgl import link_GL, link_GLU, link_WGL
Now the following Error:
'module' object has no attribute '_getframe'
Kind of a pain to fix it. Updating with results...
Update3:
Fixed by adding following line right after first line in C#-Code:
setup.Options["Frames"] = true;
Current Problem:
No module named unicodedata, but in Python26/DLLs is only a *.pyd file`. So.. how do i implement it now?!
Update4:
Fixed by surfing: link text and adding unicodedata.py and '.pyd to C# Projectfolder.
Current Problem:
'libGL.so not found'... guys.. im almost giving up on nodebox for C#.. to be continued
Update5:
i gave up :/ workaround: c# communicating with nodebox over xml and filesystemwatchers. Not optimal, but case solved.
-X:Frames enables the frames option as runtime (it slows code down a little to have access to the Python frames all the time).
To enable frames when hosting you just need to do:
ScriptRuntimeSetup setup = Python.CreateRuntimeSetup(new Dictionary<string, object>() {
{ "Frames", true }
});
Instead of the null that you're passing now. That's just creating a new dictionary for the options dictionary w/ the contents "Frames" set to true. You can set other options in there as well and in general the -X:Name option is the same here as it is for the command line.
I am trying to put version information to my C# GUI framework retrieved from the latest ClearCase label. This was originally done from Visual Soursafe as below.
vssDB = new VSSDatabaseClass();
vssDB.Open( databaseName, "vssadmin", "vssadmin" );
VSSItem item = vssDB.get_VSSItem( #"$\BuildDCP.bat", false );
foreach(VSSVersion vssVersion in item.get_Versions(0))
{
// Pull the first non-blank label and use that
if ( vssVersion.Label != "" )
{
labelID = vssVersion.Label.ToString();
break;
}
}
I am trying to do something similar using ClearCase since we changed our source code control from VSS to CC. Any help would be greatly appreciated.
Thanks!
I believe this could be better achieved through a script, which would be called from your C# program.
But you may be able to directly call some COM objects, through the CAL interface provided with ClearCase.
The documentation for the interface can be accessed through ClearCase help (Start>Programs>Rational ClearCase>ClearCase Help), where there's an entry for "ClearCase Automation Library (CAL)". An alternate path is to look in the ClearCase/bin directory for "cc_cal.chm".
In VB, with CAL API, that would give something like:
Dim CC As New ClearCase.Application
Dim labelID As String
Set aVersion = CC.Version("[Path-To]\BuildDCP.bat");
Set someLabels = Ver.Labels;
If (someLabels.Count > 0) Then
' the first label listed is the most recently applied
labelID = someLabels.Item(1).Type.Name
EndIf
I really wish that the COM interfaces had better documentation, or were more obvious. Or that the code to ClearCase Explorer or Project Explorer were open source.
I've done a few cool things, but I pretty much started by adding COM references to my C# project, and then started screwing around with the interfaces I found.
Good luck!