Add support for OCaml dune projects

CHANGELOG.md

@@ -5,12 +5,13 @@
 ### New features
 
 * New functions `projectile-acquire-root` and `projectile-process-current-project-buffers-current`
-* New project commands `projectile-package-project`, `projectile-install-project`. 
+* New project commands `projectile-package-project`, `projectile-install-project`.
 * [#1539](https://github.com/bbatsov/projectile/pull/1539): New defcustom `projectile-auto-discover` controlling whether to automatically discover projects in the search path when `projectile-mode` activates.
 * Add [emacs-eldev](https://github.com/doublep/eldev) project type.
 * Add Dart project type.
-* [#1555](https://github.com/bbatsov/projectile/pull/1555) Add search with ripgrep. 
+* [#1555](https://github.com/bbatsov/projectile/pull/1555) Add search with ripgrep.
 * Add Python-poetry project type.
+* [#1576](https://github.com/bbatsov/projectile/pull/1576) Add OCaml [Dune](https://github.com/ocaml/dune) project type.
 
 ### Changes
 

doc/modules/ROOT/pages/projects.adoc

@@ -81,6 +81,9 @@ are the configuration files of various build tools. Out of the box the following
 | stack.yaml
 | Haskell's stack tool based project
 
+| dune-project
+| OCaml Dune project file
+
 | info.rkt
 | Racket package description file
 

projectile.el

@@ -2866,6 +2866,11 @@ test/impl/other files as below:
                                   :run "dart"
                                   :test-suffix "_test.dart")
 
+;; OCaml
+(projectile-register-project-type 'ocaml-dune '("dune-project")
+                                  :project-file "dune-project"
+                                  :compile "dune build"
+                                  :test "dune runtest")
 
 (defvar-local projectile-project-type nil
   "Buffer local var for overriding the auto-detected project type.