Make .travis.yml use cabal new-build

For now don't run tests (we need servant-0.10 for that).

Author: phadej

.travis.yml

@@ -1,32 +1,87 @@
+# This Travis job script has been generated by a script via
+#
+#   make_travis_yml_2.hs 'servant-swagger.cabal'
+#
+# For more information, see https://github.com/hvr/multi-ghc-travis
+#
+language: c
 sudo: false
 
-addons:
-  apt:
-    sources:
-      - hvr-ghc
-    packages:
-      - happy-1.19.5
-      - libgmp-dev
+git:
+  submodules: false  # whether to recursively clone submodules
 
-env:
-  - STACK_YAML=stack.yaml
-  - STACK_YAML=stack-ghc-7.8.yaml
-  - STACK_YAML=stack-ghc-7.10.yaml
+cache:
+  directories:
+    - $HOME/.cabal/packages
+    - $HOME/.cabal/store
+
+before_cache:
+  - rm -fv $HOME/.cabal/packages/hackage.haskell.org/build-reports.log
+  # remove files that are regenerated by 'cabal update'
+  - rm -fv $HOME/.cabal/packages/hackage.haskell.org/00-index.*
+  - rm -fv $HOME/.cabal/packages/hackage.haskell.org/*.json
+  - rm -fv $HOME/.cabal/packages/hackage.haskell.org/01-index.cache
+  - rm -fv $HOME/.cabal/packages/hackage.haskell.org/01-index.tar
+  - rm -fv $HOME/.cabal/packages/hackage.haskell.org/01-index.tar.idx
+
+matrix:
+  include:
+    - compiler: "ghc-7.8.4"
+      env: TEST=--disable-tests BENCH=--disable-benchmarks
+      addons: {apt: {packages: [ghc-ppa-tools,cabal-install-head,ghc-7.8.4], sources: [hvr-ghc]}}
+    - compiler: "ghc-7.10.3"
+      env: TEST=--disable-tests BENCH=--disable-benchmarks
+      addons: {apt: {packages: [ghc-ppa-tools,cabal-install-head,ghc-7.10.3], sources: [hvr-ghc]}}
+    - compiler: "ghc-8.0.2"
+      env: TEST=--disable-tests BENCH=--disable-benchmarks
+      addons: {apt: {packages: [ghc-ppa-tools,cabal-install-head,ghc-8.0.2], sources: [hvr-ghc]}}
 
 before_install:
-  # Download and unpack the stack executable
-  - mkdir -p ~/.local/bin
-  - export PATH=$HOME/.local/bin:/opt/happy/1.19.5/bin:$PATH
-  - travis_retry curl -L https://www.stackage.org/stack/linux-x86_64 | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'
-  - export PATH=~/.local/bin:$PATH
-  - stack --version
+ - HC=${CC}
+ - unset CC
+ - PATH=/opt/ghc/bin:/opt/ghc-ppa-tools/bin:$PATH
+ - PKGNAME='servant-swagger'
 
 install:
-  - stack setup
+ - cabal --version
+ - echo "$(${HC} --version) [$(${HC} --print-project-git-commit-id 2> /dev/null || echo '?')]"
+ - BENCH=${BENCH---enable-benchmarks}
+ - TEST=${TEST---enable-tests}
+ - travis_retry cabal update -v
+ - sed -i 's/^jobs:/-- jobs:/' ${HOME}/.cabal/config
+ - rm -fv cabal.project.local
+ - "echo 'packages: .' > cabal.project"
+ - rm -f cabal.project.freeze
+ - cabal new-build -w ${HC} ${TEST} ${BENCH} --dep -j2
+ - cabal new-build -w ${HC} --disable-tests --disable-benchmarks --dep -j2
 
+# Here starts the actual work to be performed for the package under test;
+# any command which exits with a non-zero exit code causes the build to fail.
 script:
-  - stack --no-terminal build --test
+ - if [ -f configure.ac ]; then autoreconf -i; fi
+ - rm -rf dist/
+ - cabal sdist # test that a source-distribution can be generated
+ - cd dist/
+ - SRCTAR=(${PKGNAME}-*.tar.gz)
+ - SRC_BASENAME="${SRCTAR/%.tar.gz}"
+ - tar -xvf "./$SRC_BASENAME.tar.gz"
+ - cd "$SRC_BASENAME/"
+## from here on, CWD is inside the extracted source-tarball
+ - rm -fv cabal.project.local
+ - "echo 'packages: .' > cabal.project"
+ # this builds all libraries and executables (without tests/benchmarks)
+ - rm -f cabal.project.freeze
+ - cabal new-build -w ${HC} --disable-tests --disable-benchmarks
+ # this builds all libraries and executables (including tests/benchmarks)
+ # - rm -rf ./dist-newstyle
+ - cabal new-build -w ${HC} ${TEST} ${BENCH}
 
-cache:
-  directories:
-    - $HOME/.stack
+ # there's no 'cabal new-test' yet, so let's emulate for now
+ - TESTS=( $(awk 'tolower($0) ~ /^test-suite / { print $2 }' *.cabal) )
+ - if [ "$TEST" != "--enable-tests" ]; then TESTS=(); fi
+ - shopt -s globstar;
+   RC=true; for T in ${TESTS[@]}; do echo "== $T ==";
+   if dist-newstyle/build/**/$SRC_BASENAME/**/build/$T/$T; then echo "= $T OK =";
+   else echo "= $T FAILED ="; RC=false; fi; done; $RC
+
+# EOF

servant-swagger.cabal

@@ -12,6 +12,10 @@ copyright:           (c) 2015-2016, Servant contributors
 category:            Web
 build-type:          Custom
 cabal-version:       >=1.10
+tested-with:
+  GHC==7.8.4,
+  GHC==7.10.3,
+  GHC==8.0.2
 extra-source-files:
     README.md
   , CHANGELOG.md