Add Heroku deployment

.dockerignore

@@ -0,0 +1,8 @@
+/.nrepl-port
+/.cpcache
+/classes
+/target
+/.clj-kondo
+/heroku.yml
+/app.json
+

.gitignore

@@ -1,3 +1,5 @@
 /.nrepl-port
 /.cpcache
+/classes
+/target
 /.clj-kondo/.cache

Dockerfile.heroku

@@ -0,0 +1,18 @@
+FROM clojure:tools-deps as builder
+
+RUN mkdir /tmp/ecomspark
+
+WORKDIR /tmp/ecomspark
+
+copy deps.edn Makefile ./
+COPY src ./src
+COPY resources ./resources
+
+RUN make uberjar
+
+
+FROM adoptopenjdk/openjdk11 as runner
+
+COPY --from=builder /tmp/ecomspark/target/ecomspark.jar ./
+
+ENTRYPOINT ["java","-jar","./ecomspark.jar"]

Makefile

@@ -1,5 +1,26 @@
+.PHONY: run ancient clean uberjar
 run:
 	clj -M:cider
 
 ancient:
 	clj -M:cider:ancient
+
+clean:
+	rm -rf target classes .cpcache
+
+uberjar: target/ecomspark.jar
+
+define CLASS_BUILDER
+(binding [clojure.core/*compiler-options*
+                        {:direct-linking true
+                         :elide-meta [:doc :file :line :added]}]
+	(compile (symbol "ecomspark.main")))
+endef
+export CLASS_BUILDER
+
+classes: ./src/ecomspark deps.edn
+	mkdir -p classes
+	clj -M -e "$$CLASS_BUILDER"
+
+target/ecomspark.jar: classes ./src/ecomspark deps.edn
+	clojure -M:uberjar --main-class ecomspark.main

README.md

@@ -5,6 +5,8 @@ This is an example of a working app with [TwinSpark](https://kasta-ua.github.io/
 This is a simple eCommerce site: product list with endless scroll, where you can
 add a product to cart and so on.
 
+[![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy)
+
 ## Variants
 
 - [Python+Flask](https://github.com/vsolovyov/ecomspark-flask/)

app.json

@@ -0,0 +1,6 @@
+{
+  "name": "TwinSpark demo",
+  "description": "This is an example of a working app with TwinSpark",
+  "repository": "https://github.com/piranha/ecomspark",
+  "keywords": ["web", "framework", "frontendless", "ancient technology"]
+}

deps.edn

@@ -1,4 +1,4 @@
-{:paths ["src" "resources"]
+{:paths ["src" "resources" "classes"]
  :deps
  {org.clojure/clojure    {:mvn/version "1.10.3"}
   org.slf4j/slf4j-api    {:mvn/version "1.7.30"}
@@ -20,4 +20,7 @@
                        "--middleware" "[cider.nrepl/cider-middleware,refactor-nrepl.middleware/wrap-refactor]"]}
 
   :ancient {:extra-deps {com.github.liquidz/antq {:mvn/version "RELEASE"}}
-            :main-opts  ["-m" "antq.core"]}}}
+            :main-opts  ["-m" "antq.core"]}
+  :uberjar {:replace-deps {uberdeps/uberdeps {:mvn/version "1.0.4"}}
+            :main-opts ["-m" "uberdeps.uberjar"]
+            :exec-args {:aot true}}}}

heroku.yml

@@ -0,0 +1,3 @@
+build:
+  docker:
+    web: Dockerfile.heroku

src/ecomspark/main.clj

@@ -6,10 +6,15 @@
             [ecomspark.app :as app]))
 
 
+(def default-port 5454)
+
 (mount/defstate httpd
-  :start (do
-           (println "Starting HTTPd on :5454...")
-           (httpd/run-server app/app {:port 5454}))
+  :start (let [port (or (some->> "PORT" System/getenv Integer/parseInt)
+                        default-port)]
+           (printf "Starting HTTPd on :%s...\n" port)
+           (flush)
+           (httpd/run-server app/app {:port port})
+           (println "Done!"))
   :stop  (httpd))