1 files changed, 18 insertions, 3 deletions

diff --git a/makefile b/makefile
index ddbddcd..b5f594d 100644
--- a/makefile
+++ b/makefile
@@ -1,5 +1,20 @@
-build:
-	bundle exec jekyll build --quiet
+JEKYLL_ENV ?= development
+# JEKYLL_ENV ?= production
+
+WEBROOT ?= _site
+
+JEKYLL_BUILD_ARGS += --quiet
+JEKYLL_BUILD_ARGS += --destination $(WEBROOT)
+
+# Gemfile.lock is used as a proxy for checking if the required gems are
+# installed
+
+build: Gemfile.lock
+	bundle exec jekyll build $(JEKYLL_BUILD_ARGS)
+
+Gemfile.lock: Gemfile
+	bundle install --quiet
 
 clean:
-	$(RM) -r _site
+	$(RM) -r $(WEBROOT)
+