Add jack-in support for ClojureCLR

CHANGELOG.md

@@ -28,6 +28,7 @@
   - `cider-read-and-eval` (`:`)
   - `cider-eval-defun-to-comment` (`;`)
   - `cider-pprint-eval-last-sexp-to-repl` (`f j e`)
+- [#3839](https://github.com/clojure-emacs/cider/pull/3839): Add jack-in support for ClojureCLR.
 
 ### Bugs fixed
 

doc/modules/ROOT/pages/basics/up_and_running.adoc

@@ -182,6 +182,7 @@ The following Clojure build tools are supported so far
 - kbd:[M-3 C-c C-x j u] jack-in using babashka.
 - kbd:[M-4 C-c C-x j u] jack-in using nbb.
 - kbd:[M-5 C-c C-x j u] jack-in using basilisp.
+- kbd:[M-6 C-c C-x j u] jack-in using ClojureCLR.
 
 Here is an example of how to bind kbd:[F12] for quickly bringing up a
 babashka REPL:

doc/modules/ROOT/pages/caveats.adoc

@@ -60,13 +60,11 @@ from your Emacs config.
 
 == ClojureCLR Support
 
-CIDER currently has very basic support for ClojureCLR (via Arcadia's nREPL server). The reasons for this are the following:
+CIDER currently has very basic support for ClojureCLR (via either a port of Babashka's nREPL server or Arcadia's nREPL server). The reasons for this are the following:
 
-* nREPL itself runs only on the JVM (because it leverages Java APIs
-internally). There's an
-https://github.com/clojure/clr.tools.nrepl[nREPL port for ClojureCLR], but
-it's not actively maintained and it doesn't behave like the Clojure nREPL.
-* `cider-nrepl` uses a lot of Java code internally itself.
+* The https://github.com/clojure/clr.tools.nrepl/tree/master/partial-nrepl-nrepl-port[nrepl/nrepl port to ClojureCLR] is not yet working
+* `cider-nrepl` uses a lot of Java code internally itself and would need to be adapted/ported like any
+  other clojure library adapted/ported to ClojureCLR.
 
 Those issues are not insurmountable, but are beyond the scope of our current roadmap.
 If someone would like to tackle them, we'd be happy to provide assistance.

doc/modules/ROOT/pages/platforms/clojureclr.adoc

@@ -2,27 +2,27 @@
 
 == Current Status
 
-ClojureCLR on CIDER is not great due to the lack of a fully-functional nREPL
-server for ClojureCLR. There are currently two options:
+You will get basic CIDER functionality with ClojureCLR. Three nREPL server options:
 
-- https://github.com/clojure/clr.tools.nrepl[clr.tools.nrepl]: A direct (but incomplete) port of the reference Clojure nREPL server.
+- https://github.com/clojure/clr.tools.nrepl[clr.tools.nrepl]: At present port of babashka's nREPL server (https://github.com/babashka/babashka.nrepl[babashka.nrepl]).
+- https://github.com/clojure/clr.tools.nrepl/tree/master/partial-nrepl-nrepl-port[port of nrepl/nrepl]: A non-working, work-in-progress port of nrepl/nrepl, which may
+  ultimately better integrate with CIDER once CIDER's middleware (cider-nrepl) is also adapted/ported.
 - https://github.com/arcadia-unity/Arcadia/blob/master/Editor/NRepl.cs[Arcadia's nREPL]: A basic, but working nREPL implementation in C#.
 
-If you need to use CIDER with ClojureCLR today Arcadia's nREPL is your only usable option. That being said - `clr.tools.nrepl` is a much
-more sophisticated project and ideally we should get it over to the finish line.
+An alternative to CIDER & a nREPL server is inf-clojure with ClojureCLR's stock socket REPL server.
 
 == Usage
 
 NOTE: Contributions welcome!
 
-As `cider-jack-in` doesn't support ClojureCLR projects out-of-the-box currently, you'll need to start an nREPL server externally and
-connect to it with `cider-connect`.
+`cider-jack-in-universal` will jack into a clr.tools.nrepl server as long as a `deps-clr.edn` file
+exists in the project directory, otherwise you may call `cider-jack-in-universal` with prefix
+argument 6, by either `M-6` or `C-u 6` followed by `M-x cider-jack-in-universal`.
 
 == Plans
 
 In an ideal world we'll achieve the following objectives:
 
-- out-of-the-box ClojureCLR support with `cider-jack-in`
 - feature parity between Clojure's nREPL implementation and `clr.tools.nrepl` (the project can use some help)
 - adapting `cider-nrepl` for ClojureCLR (some of its codebase is JVM-specific)
 

lisp/cider-jack-in.el

@@ -207,6 +207,30 @@ By default we favor the project-specific shadow-cljs over the system-wide."
   :safe #'stringp
   :package-version '(cider . "1.14.0"))
 
+(defcustom cider-clojure-clr-cli-command
+  "cljr"
+  "The command used to execute ClojureCLR."
+  :type 'string
+  :group 'cider
+  :safe #'stringp
+  :package-version '(cider . "1.21.0"))
+
+(defcustom cider-clojure-clr-cli-parameters
+  "-X clojure.tools.nrepl/start-server!"
+  "Params passed to ClojureCLR to start an nREPL server via `cider-jack-in'."
+  :type 'string
+  :group 'cider
+  :safe #'stringp
+  :package-version '(cider . "1.21.0"))
+
+;; Clojure git deps require :git/sha even when :git/tag is set, just do full SHA
+(defcustom cider-clojure-clr-cli-nrepl-sha "a6bf822a5f72ec613f703eaf95420758591f2437"
+  "The version of clr.tools.nrepl injected on jack-in with ClojureCLR."
+  :type 'string
+  :group 'cider
+  :safe #'stringp
+  :package-version '(cider . "1.21.0"))
+
 
 ;;; Jack-in defaults and toggles
 
@@ -623,6 +647,30 @@ Does so by concatenating PARAMS and DEPENDENCIES."
      " "
      params)))
 
+(defun cider-clojure-clr-cli-jack-in-dependencies (params dependencies &optional command)
+  "Create ClojureCLR clr.core.cli jack-in dependencies.
+Does so by concatenating DEPENDENCIES, and PARAMS into a
+suitable `cljr` invocation and quoting, also accounting for COMMAND if
+provided."
+  (let* ((all-deps (thread-last dependencies
+                                (cider--dedupe-deps)
+                                (seq-map (lambda (dep)
+                                           (if (listp (cadr dep))
+                                               (format "%s {%s}"
+                                                       (car dep)
+                                                       (seq-reduce
+                                                        (lambda (acc v)
+                                                          (concat acc (format " :%s \"%s\" " (car v) (cdr v))))
+                                                        (cadr dep)
+                                                        ""))
+                                             (format "%s {:git/sha \"%s\"}" (car dep) (cadr dep)))))))
+         (deps (format "{:deps {%s}}"
+                       (string-join all-deps " ")))
+         (deps-quoted (cider--shell-quote-argument deps command)))
+    (format "-Sdeps %s %s"
+            deps-quoted
+            (if params (format " %s" params) ""))))
+
 (defun cider-add-clojure-dependencies-maybe (dependencies)
   "Return DEPENDENCIES with an added Clojure dependency if requested.
 See also `cider-jack-in-auto-inject-clojure'."
@@ -682,6 +730,12 @@ COMMAND is the resolved jack-in command, used to handle PowerShell quoting."
    (cider-add-clojure-dependencies-maybe cider-jack-in-dependencies)
    (cider-jack-in-normalized-nrepl-middlewares)))
 
+(defun cider--clojure-clr-cli-inject-deps (params _project-type _command)
+  "Inject CIDER deps into PARAMS for a ClojureCLR CLI project."
+  (cider-clojure-clr-cli-jack-in-dependencies
+   params
+   `(("io.github.clojure/clr.tools.nrepl" ,cider-clojure-clr-cli-nrepl-sha))))
+
 (defun cider-inject-jack-in-dependencies (params project-type &optional command)
   "Return PARAMS with injected REPL dependencies for PROJECT-TYPE.
 Looks up the tool's :inject-fn in `cider-jack-in-tools' and calls it with
@@ -849,6 +903,13 @@ Throws an error if PROJECT-TYPE is unknown."
                              :project-files '("basilisp.edn")
                              :universal-prefix-arg 5)
 
+(cider-register-jack-in-tool 'clojure-clr-cli
+                             :command-var 'cider-clojure-clr-cli-command
+                             :params-var 'cider-clojure-clr-cli-parameters
+                             :project-files '("deps-clr.edn")
+                             :inject-fn #'cider--clojure-clr-cli-inject-deps
+                             :universal-prefix-arg 6)
+
 
 ;;; ClojureScript jack-in helpers