csharp: update layer documentation to be more up to date with the roslyn version
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#+TITLE: C# layer
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[[file:img/csharp.png]] [[file:img/dotnet.png]]
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[[file:img/csharp.png]]
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* Table of Contents :TOC_4_gh:noexport:
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- [[#description][Description]]
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- [[#features][Features:]]
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- [[#packages-included][Packages Included]]
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- [[#install][Install]]
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- [[#prerequisites][Prerequisites]]
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- [[#aspnet-5][ASP.NET 5]]
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- [[#curl][curl]]
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- [[#omnisharp-server][Omnisharp server]]
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- [[#caveats][Caveats]]
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- [[#key-bindings][Key Bindings]]
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- [[#compilation][Compilation]]
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- [[#filesolutionproject-manipulation][File/Solution/Project manipulation]]
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- [[#navigation][Navigation]]
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- [[#helpers-documentation-info][Helpers (documentation, info)]]
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- [[#refactoring][Refactoring]]
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- [[#omnisharp-server-interaction][OmniSharp server interaction]]
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- [[#tests][Tests]]
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- [[#code-manipulation][Code manipulation]]
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* Description
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This layer adds experimental support for C# language using [[https://github.com/OmniSharp/omnisharp-emacs][OmniSharp]].
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This layer adds support for C# language using the [[https://github.com/OmniSharp/omnisharp-roslyn][omnisharp-roslyn]] language
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server and corresponding [[https://github.com/OmniSharp/omnisharp-emacs][omnisharp-emacs]] package.
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Please report any issues encountered to [[https://github.com/OmniSharp/omnisharp-emacs/issues][omnisharp-emacs issue page on github]].
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PRs are welcome too!
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** Features:
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- Syntax checking with flycheck
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- Support for auto-completion (when =auto-completion= layer is included)
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- Refactoring
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- Navigation to cross-references
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- Inspecting types in metadata
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* Packages Included
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- [[https://github.com/OmniSharp/omnisharp-emacs][OmniSharp-emacs]]
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- [[https://github.com/OmniSharp/omnisharp-emacs][omnisharp]]
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* Install
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To use this configuration layer, add it to your =~/.spacemacs=. You will need to
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add =csharp= to the existing =dotspacemacs-configuration-layers= list in this
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file.
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** Prerequisites
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*** ASP.NET 5
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Follow the instructions for your platform [[https://github.com/aspnet/home#user-content-get-started][here]].
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Before you can work with C# files you will need to install the server by invoking
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~SPC m s i~ (or =M-x omnisharp-install-server=). Otherwise, if this fails for
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you, please see [[https://github.com/OmniSharp/omnisharp-emacs/blob/master/doc/server-installation.md][omnisharp-emacs/doc/server-installation.md]].
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*** curl
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You'll need [[https://curl.haxx.se/][curl]] to be able to use the Omnisharp package. Use your favorite
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package manager to install it (on Windows you can use [[https://chocolatey.org/][chocolatey]]).
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Be sure to make the =curl= binary available to your PATH environment variable,
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or set the variable =omnisharp--curl-executable-path= in your dotfile function
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=dotspacemacs-config=:
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#+BEGIN_SRC emacs-lisp
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(setq-default omnisharp--curl-executable-path "/PATH/TO/CURL/curl")
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#+END_SRC
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*** Omnisharp server
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You have to compile the OmniSharp server following the instructions which can
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be found [[https://github.com/OmniSharp/omnisharp-server][here]].
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Don't forget to add the server binary directory to your system PATH environment
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variable. The full path the binary can also be directly referenced in the
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variable =omnisharp-server-executable-path= (put this in your
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=dotspacemacs-config= function):
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#+BEGIN_SRC emacs-lisp
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(setq-default omnisharp-server-executable-path "/PATH/TO/OMNISHARP/OmniSharpServer")
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#+END_SRC
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OmniSharp should now automatically load and start a server when you open a
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=.cs= file.
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The server needs to be started manually with ~SPC m s s~ (or
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=M-x omnisharp-start-omnisharp-server=). It will prompt a path to your .cpsroj
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or .sln file. In the future the server will be started automatically however for
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now this is required.
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* Caveats
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- It's currently not possible to create a C# solution outside of an IDE such as
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[[http://www.monodevelop.com/][MonoDevelop]], it's therefore recommended that you install it to create your
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solutions.
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- You should use =dotnet= CLI tool from [[https://www.microsoft.com/net/download/core][.NET Core download page]] or an IDE like
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Visual Studio or Xamarin Studio to manage solution and project files.
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- Debugging is possible using [[https://github.com/mono/sdb][SDB]].
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- Debugging on command line is possible using [[https://github.com/mono/sdb][SDB]].
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- There can be only one server running at the same time. To switch to a different
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solution/project you need to invoke ~SPC m s S~ and ~SPC m s s~ to stop current
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server and start another one pointing to another solution/project.
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* Key Bindings
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** Compilation
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| Key Binding | Description |
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|-------------+--------------------|
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| ~SPC m c c~ | Build the solution |
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** File/Solution/Project manipulation
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| Key Binding | Description |
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|-------------+-----------------------------------------------|
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| ~SPC m f a~ | Add the current file to solution |
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| ~SPC m f A~ | Add files selected in dired to solution |
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| ~SPC m f r~ | Remove the current file from solution |
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| ~SPC m f R~ | Removed files selected in dired from solution |
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| ~SPC m p l~ | Add reference to solution |
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** Navigation
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| Key Binding | Description |
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@ -119,7 +87,7 @@ OmniSharp should now automatically load and start a server when you open a
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|-------------+------------------------------------------|
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| ~SPC m r m~ | Rename symbol under cursor |
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| ~SPC m r M~ | Rename symbol under cursor interactively |
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| ~SPC m r r~ | Refactor symbol under cursor |
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| ~SPC m r r~ | Refactor under cursor |
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** OmniSharp server interaction
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@ -128,19 +96,4 @@ OmniSharp should now automatically load and start a server when you open a
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| ~SPC m s r~ | Reload the solution |
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| ~SPC m s s~ | Start the OmniSharp server |
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| ~SPC m s S~ | Stop the OmniSharp server |
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** Tests
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| Key Binding | Description |
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|-------------+---------------------------------------|
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| ~SPC m t a~ | Run all tests in project |
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| ~SPC m t b~ | Run all tests in current file/fixture |
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| ~SPC m t t~ | Run test under cursor |
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** Code manipulation
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| Key Binding | Description |
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|-------------+---------------------------|
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| ~SPC m o~ | Auto complete overrides |
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| ~SPC m i~ | Fix usings/imports |
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| ~SPC m =~ | Format the current buffer |
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| ~SPC m s i~ | Install OmniSharp server |
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