replace reltool with relx

Author: Tristan Sloughter

.gitignore

@@ -0,0 +1,2 @@
+ebin
+_rel

Makefile

@@ -2,30 +2,19 @@ PROJECT = elevators
 REBAR = rebar
 REBARUP = rebar -C rebar.config.upgrade
 
-all: upgrade
+all: rel1
 
 app:
 	@$(REBAR) compile
 
 clean:
 	@$(REBAR) clean
 
-release: clean-release app
-	@$(REBAR) generate
-	mv rel1/elevators/releases/1/elevators.boot rel1/elevators/releases/1/start.boot
-	ln -s start.boot rel1/elevators/releases/1/elevators.boot
+rel1: clean-release app
+	@./relx -c rel1/relx.config release tar
+
+rel2: clean app
+	@./relx -c rel2/relx.config release relup tar
 
 clean-release:
 	rm -rf rel1/elevators rel2/elevators
-
-upgrade: clean release
-	mv src/elevators.app.src src/elevators.app.src.v1
-	mv src/scheduler.erl src/scheduler.erl.v1
-	cp upgrade/elevators.app.src src/
-	cp upgrade/scheduler.erl src/
-	@$(REBARUP) compile generate
-	cp upgrade/elevators.appup rel2/elevators/lib/elevators-1.1/ebin/
-	@$(REBARUP) generate-upgrade previous_release=../rel1/elevators
-	mv rel2/elevators_2.tar.gz rel1/elevators/releases/
-	mv src/elevators.app.src.v1 src/elevators.app.src
-	mv src/scheduler.erl.v1 src/scheduler.erl

README.md

@@ -34,13 +34,11 @@ Quick start
 
  *  Make sure you have make and rebar installed and in your `$PATH`
  *  Type `make` to build everything
- *  Start the release with `./rel1/elevators/bin/elevators console`
+ *  Start the release with `./_rel/bin/elevators console`
  *  Make elevators move and notice they stop at each floor
  *  (Exercise: Find bugs, fix them and build a release upgrade)
- *  In the Erlang shell: `release_handler:unpack_release("elevators_2").`
- *  To upgrade: `release_handler:install_release("2").`
- *  To downgrade: `release_handler:install_release("1").`
- *  Stop the VM with `q().`
+ *  Place fixes in `upgrade/scheduler.erl`
+ *  Run `./v1to2.sh`
 
 Troubleshooting
 ---------------