Travis update

The new container-based format doesn't do sudo anymore, so there are some extensive changes.

It does, however, allow cache.

I also took the opportunity to switch to a newer busted. The root element for that now needs to be a table.

.busted

@@ -1,7 +1,7 @@
 return {
 	default = {
 		verbose = true,
-		ROOT = "spec/front/unit",
+		ROOT = {"spec/front/unit"},
 		lpath = "spec/front/unit/?.lua",
 	},
 }

.travis.yml

@@ -3,34 +3,64 @@
 
 language: c
 
+sudo: false
+
 compiler:
   - gcc
 
 env:
-    - EMULATE_READER=1 USE_NO_CCACHE=1
+  - EMULATE_READER=1
+
+cache:
+  directories:
+    - $HOME/.ccache
+#  - base
+
+addons:
+  apt:
+    sources:
+      - ubuntu-toolchain-r-test
+    packages:
+      - g++-4.8
+      - libsdl1.2-dev
+      - luarocks
+      # for luasec
+      - libssl1.0.0
+      - nasm
+      # OpenSSL likes this (package contains makedepend)
+      - xutils-dev
 
 before_install:
-    - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
-    - sudo apt-get update -qq
-    - sudo apt-get install -qq g++-4.8
-    - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 50
-    - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 50
+  # don't do this for clang
+  - if [ "$CXX" = "g++" ]; then export CXX="g++-4.8" CC="gcc-4.8"; fi
+  # in case anything ignores the environment variables, override through PATH
+  - mkdir bin
+  - ln -s $(which gcc-4.8) bin/cc
+  - ln -s $(which gcc-4.8) bin/gcc
+  - ln -s $(which c++-4.8) bin/c++
+  - ln -s $(which g++-4.8) bin/g++
+  - export PATH=$PWD/bin:$PATH
 
 install:
-    # nasm for building libpng
-    - sudo apt-get install libsdl1.2-dev luarocks nasm
-    # install an older version of lua_cliargs for busted v1.10.0
-    - sudo luarocks install lua_cliargs 2.1-2
-    # recent versions of busted may cause some weird segmentation faults
+  - mkdir $HOME/.luarocks
+  - cp /etc/luarocks/config.lua $HOME/.luarocks/config.lua
+  - echo "wrap_bin_scripts = false" >> $HOME/.luarocks/config.lua
+  - travis_retry luarocks --local install lua_cliargs
+  # versions older than 1.10ish and <2.0.rc10-0ish of busted may cause some weird segmentation faults
   - travis_retry git clone https://github.com/Olivine-Labs/busted/
-    - cd busted && git checkout v1.10.0 && sudo luarocks make && cd ..
-    - travis_retry sudo luarocks install luacov
-    - travis_retry sudo luarocks install luacov-coveralls --server=http://rocks.moonscript.org/dev
+  - cd busted && git checkout v2.0.rc10-0 && luarocks --local make busted-2.0.rc10-0.rockspec && cd ..
+  - travis_retry luarocks --local install luacov
+  # luasec doesn't automatically detect 64-bit libs
+  - travis_retry luarocks --local install luasec OPENSSL_LIBDIR=/usr/lib/x86_64-linux-gnu
+  - travis_retry luarocks --local install luacov-coveralls --server=http://rocks.moonscript.org/dev
+  # add local rocks to $PATH
+  # on newer luarocks, `luarocks path --bin` would suffice because it includes the PATH now
+  - eval $(luarocks path --bin)
+  - export PATH=$PATH:$HOME/.luarocks/bin
 
 script:
   - travis_retry make fetchthirdparty all
-    - sudo cp base/build/*/luajit /usr/bin/
-    - make testfront
+  - travis_retry make testfront
 
 after_success:
   - make coverage

Makefile

@@ -93,14 +93,14 @@ $(INSTALL_DIR)/koreader/.luacov:
 		ln -sf ../../.luacov $(INSTALL_DIR)/koreader
 
 testfront: $(INSTALL_DIR)/koreader/.busted
-	cd $(INSTALL_DIR)/koreader && busted -l ./luajit --exclude-tags=notest
+	cd $(INSTALL_DIR)/koreader && ./luajit $(shell which busted) --exclude-tags=notest
 
 test:
 	$(MAKE) -C $(KOR_BASE) test
 	$(MAKE) testfront
 
 coverage: $(INSTALL_DIR)/koreader/.luacov
-	cd $(INSTALL_DIR)/koreader && busted -c -l ./luajit --exclude-tags=nocov
+	cd $(INSTALL_DIR)/koreader && ./luajit $(shell which busted) --coverage --exclude-tags=nocov
 	# coverage report summary
 	cd $(INSTALL_DIR)/koreader && tail -n \
 		+$$(($$(grep -nm1 Summary luacov.report.out|cut -d: -f1)-1)) \