Sépare les dépendances de "prod" des dépendances de "dev".

Dockerfile

@@ -8,7 +8,7 @@ COPY package*.json /reveal_js/
 
 WORKDIR /reveal_js
 
-RUN npm install
+RUN npm install --only=prod
 
 ARG PANDOC_VERSION=2.7.3
 

package.json

@@ -18,19 +18,19 @@
   "author": "Guillaume Perréal <guillaume.perreal@irstea.fr>",
   "license": "MIT",
   "dependencies": {
-    "reveal.js": "git+https://gitlab.irstea.fr/guillaume.perreal/reveal.js.git#irstea"
-  },
-  "devDependencies": {
     "grunt": "^1.0.4",
     "grunt-contrib-clean": "^2.0.0",
     "grunt-contrib-copy": "^1.0.0",
     "grunt-exec": "^3.0.0",
     "grunt-http-server": "^2.1.0",
     "grunt-watcher": "^1.0.0",
+    "reveal.js": "git+https://gitlab.irstea.fr/guillaume.perreal/reveal.js.git#irstea"
+  },
+  "devDependencies": {
     "husky": "^1.3.1",
     "jshint": "^2.10.2",
-    "lint-staged": "^8.1.5",
-    "prettier": "^1.16.4"
+    "lint-staged": "^8.2.1",
+    "prettier": "^1.18.2"
   },
   "husky": {
     "pre-commit": "lint-staged"