dev: hot reloading

- add start/stop/restart/watch functions in 'user namespace (dev
profile)
- add lein alias `dev` that starts file watcher and REPL
- every time source code is changed, `lein dev` reloads modified
namespaces and restarts system
- add `lein dev` to Contributors' Guide

3 files changed, 37 insertions, 29 deletions

diff --git a/dev/user.clj b/dev/user.clj
new file mode 100644
index 0000000..2ebcdb0
--- /dev/null
+++ b/dev/user.clj
@@ -0,0 +1,27 @@
+(ns user
+  (:require [clj-reload.core :as reload]
+            [nextjournal.beholder :as beholder]
+            [weepinbell.core]))
+
+(reload/init
+  {:dirs ["src" "dev" "test"]})
+
+(defonce stop-fn (atom nil))
+
+(defn start []
+  {:pre [(nil? @stop-fn)]}
+  (reset! stop-fn (@(resolve 'weepinbell.core/start-system))))
+
+(defn stop []
+  {:pre [(fn? @stop-fn)]}
+  (@stop-fn)
+  (reset! stop-fn nil))
+
+(defn restart []
+  (stop)
+  (reload/reload)
+  (start))
+
+(defn watch []
+  (beholder/watch (fn [_] ((requiring-resolve 'user/restart))) "src"))
+
diff --git a/doc/CONTRIBUTING.md b/doc/CONTRIBUTING.md
index 010a3ca..cb82836 100644
--- a/doc/CONTRIBUTING.md
+++ b/doc/CONTRIBUTING.md
@@ -43,10 +43,10 @@ To start REPL:
 lein repl 

 ```

 

-To start a dev server: 

+To start a dev server (and an REPL): 

 

 ``` 

-lein ring server 

+lein dev

 ```

 

 To run project: 

diff --git a/project.clj b/project.clj
index 60b0b01..fa2d666 100644
--- a/project.clj
+++ b/project.clj
@@ -19,39 +19,20 @@
                  [com.taoensso/timbre "6.8.0"]
                  [clj-rss "0.4.0"]]
   :managed-dependencies [[org.clojure/tools.reader "1.6.0"]
-                         [org.ow2.asm/asm "9.8"]]
+                         [org.ow2.asm/asm "9.8"]] 
   :profiles {:uberjar {:aot :all}
              :test {:dependencies [[ring/ring-mock "0.6.2"]]}
-             :cljsbuild {:dependencies [[org.clojure/clojurescript "1.11.132"]]}}
+             :dev {:source-paths ["dev"]
+                   :repl-options {:init-ns user
+                                  :init (do (start) (watch))}
+                   :dependencies [[io.github.tonsky/clj-reload "1.0.0"]
+                                  [com.nextjournal/beholder "1.0.3"]]}}
+  :aliases {"dev" ["with-profile" "+dev" "repl"]}
   :main ^:skip-aot weepinbell.core
   ;; plugins
   :plugins [[lein-ancient "0.6.15"]
-            [lein-ring "0.12.6"]
             ;; latest commits of cloverage were "co-authored" by Claude
             ;; we'll keep it on this version for now
             [lein-cloverage "1.2.2"] 
-            [dev.weavejester/lein-cljfmt "0.16.5"]
-            ;; for frontend
-            [lein-cljsbuild "1.1.8"]]
-  :ring {:handler weepinbell.handler/app}
-  :cljsbuild
-  {:builds
-   {:dev
-    {:source-paths ["src-fe"]
-     :compiler
-     {:main bellsprout.core
-      :output-to "resources/public/js/main.js"
-      :output-dir "resources/public/js/out"
-      :asset-path "js/out"
-      :optimizations :none
-      :source-map true
-      :target :browser}}
-    :prod
-    {:source-paths ["src-fe"]
-     :compiler
-     {:main bellsprout.core
-      :output-to "resources/public/js/main.js"
-      :output-dir "target/cljsbuild"
-      :optimizations :advanced
-      :pretty-print false}}}})
+            [dev.weavejester/lein-cljfmt "0.16.5"]])