Add support for xmake build utility

CHANGELOG.md

@@ -11,6 +11,7 @@
 * [#1877](https://github.com/bbatsov/projectile/pull/1877): Add custom variable `projectile-cmd-hist-ignoredups`.
 * Add support for Eask projects.
 * [#1892](https://github.com/bbatsov/projectile/pull/1892): Add category metadata to `completing-read`. (it's used by packages like `marginalia` and `embark`)
+* [#1899](https://github.com/bbatsov/projectile/pull/1899): Add support for xmake build utility.
 * [#1895](https://github.com/bbatsov/projectile/pull/1895): Modify projectile-mode to add a hook to `buffer-list-update-hook` such that any change in the buffer list will update the selected project.
 
 ### Bugs fixed

doc/modules/ROOT/pages/projects.adoc

@@ -140,6 +140,9 @@ are the configuration files of various build tools. Out of the box the following
 
 | debian/control
 | Debian package dpkg control file
+
+| xmake.lua
+| xmake project
 |===
 
 There's also Projectile's own `.projectile` which serves both as a project marker

projectile.el

@@ -3287,6 +3287,12 @@ a manual COMMAND-TYPE command is created with
 ;; File-based detection project types
 
 ;; Universal
+(projectile-register-project-type 'xmake '("xmake.lua")
+                                  :project-file "xmake.lua"
+                                  :compile "xmake build"
+                                  :test "xmake test"
+                                  :run "xmake run"
+                                  :install "xmake install")
 (projectile-register-project-type 'scons '("SConstruct")
                                   :project-file "SConstruct"
                                   :compile "scons"