Support GHC-8.2

.gitignore

@@ -1,4 +1,6 @@
 dist
+dist-newstyle
+.ghc.environment.*
 cabal-dev
 *.o
 *.hi

.travis.yml

@@ -1,92 +1,91 @@
-# This file has been generated -- see https://github.com/hvr/multi-ghc-travis
+# This Travis job script has been generated by a script via
+#
+#   make_travis_yml_2.hs '--branch' 'master' 'swagger2.cabal'
+#
+# For more information, see https://github.com/hvr/multi-ghc-travis
+#
 language: c
 sudo: false
 
+git:
+  submodules: false  # whether to recursively clone submodules
+
+branches:
+  only:
+    - master
+
 cache:
   directories:
-    - $HOME/.cabsnap
     - $HOME/.cabal/packages
+    - $HOME/.cabal/store
+    - $HOME/.local/bin
 
 before_cache:
   - rm -fv $HOME/.cabal/packages/hackage.haskell.org/build-reports.log
-  - rm -fv $HOME/.cabal/packages/hackage.haskell.org/00-index.tar
+  # 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:
-    - env: CABALVER=1.18 GHCVER=7.8.4
-      compiler: ": #GHC 7.8.4"
-      addons: {apt: {packages: [cabal-install-1.18,ghc-7.8.4,happy-1.19.5], sources: [hvr-ghc]}}
-    - env: CABALVER=1.22 GHCVER=7.10.3
-      compiler: ": #GHC 7.10.3"
-      addons: {apt: {packages: [cabal-install-1.22,ghc-7.10.3,happy-1.19.5], sources: [hvr-ghc]}}
-    - env: CABALVER=1.24 GHCVER=8.0.1
-      compiler: ": #GHC 8.0.1"
-      addons: {apt: {packages: [cabal-install-1.24,ghc-8.0.1,happy-1.19.5], sources: [hvr-ghc]}}
-    - env: CABALVER=1.18 GHCVER=7.8.4 CABALCONFIG=aeson-0.11.cabal.config
-      compiler: ": #GHC 7.8.4 aeson-0.11"
-      addons: {apt: {packages: [cabal-install-1.18,ghc-7.8.4,happy-1.19.5], sources: [hvr-ghc]}}
-    - env: CABALVER=1.22 GHCVER=7.10.3 CABALCONFIG=aeson-0.11.cabal.config
-      compiler: ": #GHC 7.10.3 aeson-0.11"
-      addons: {apt: {packages: [cabal-install-1.22,ghc-7.10.3,happy-1.19.5], sources: [hvr-ghc]}}
-    - env: CABALVER=1.24 GHCVER=8.0.1 CABALCONFIG=aeson-0.11.cabal.config
-      compiler: ": #GHC 8.0.1 aeson-0.11"
-      addons: {apt: {packages: [cabal-install-1.24,ghc-8.0.1,happy-1.19.5], sources: [hvr-ghc]}}
+    - 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]}}
+    - compiler: "ghc-8.2.1"
+    # env: TEST=--disable-tests BENCH=--disable-benchmarks
+      addons: {apt: {packages: [ghc-ppa-tools,cabal-install-head,ghc-8.2.1], sources: [hvr-ghc]}}
 
 before_install:
+ - HC=${CC}
  - unset CC
- - export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:/opt/happy/1.19.5/bin:$PATH
- - if [ -f "$CABALCONFIG" ]; then cp $CABALCONFIG cabal.config; fi
+ - PATH=/opt/ghc/bin:/opt/ghc-ppa-tools/bin:$PATH
+ - PKGNAME='swagger2'
 
 install:
  - cabal --version
- - echo "$(ghc --version) [$(ghc --print-project-git-commit-id 2> /dev/null || echo '?')]"
- - if [ -f $HOME/.cabal/packages/hackage.haskell.org/00-index.tar.gz ];
-   then
-     zcat $HOME/.cabal/packages/hackage.haskell.org/00-index.tar.gz >
-          $HOME/.cabal/packages/hackage.haskell.org/00-index.tar;
-   fi
+ - echo "$(${HC} --version) [$(${HC} --print-project-git-commit-id 2> /dev/null || echo '?')]"
+ - BENCH=${BENCH---enable-benchmarks}
+ - TEST=${TEST---enable-tests}
  - travis_retry cabal update -v
  - sed -i 's/^jobs:/-- jobs:/' ${HOME}/.cabal/config
- - cabal install --only-dependencies --enable-tests --enable-benchmarks --dry -v > installplan.txt
- - sed -i -e '1,/^Resolving /d' installplan.txt; cat installplan.txt
-
-# check whether current requested install-plan matches cached package-db snapshot
- - if diff -u installplan.txt $HOME/.cabsnap/installplan.txt;
-   then
-     echo "cabal build-cache HIT";
-     rm -rfv .ghc;
-     cp -a $HOME/.cabsnap/ghc $HOME/.ghc;
-     cp -a $HOME/.cabsnap/lib $HOME/.cabsnap/share $HOME/.cabsnap/bin $HOME/.cabal/;
-   else
-     echo "cabal build-cache MISS";
-     rm -rf $HOME/.cabsnap;
-     mkdir -p $HOME/.ghc $HOME/.cabal/lib $HOME/.cabal/share $HOME/.cabal/bin;
-     cabal install --only-dependencies --enable-tests --enable-benchmarks;
-   fi
-
-# snapshot package-db on cache miss
- - if [ ! -d $HOME/.cabsnap ];
-   then
-      echo "snapshotting package-db to build-cache";
-      mkdir $HOME/.cabsnap;
-      cp -a $HOME/.ghc $HOME/.cabsnap/ghc;
-      cp -a $HOME/.cabal/lib $HOME/.cabal/share $HOME/.cabal/bin installplan.txt $HOME/.cabsnap/;
-   fi
+ - sh install-hspec-discover.sh # TEMP: we should use build-tools-depends
+ - rm -fv cabal.project.local
+ - "echo 'packages: .' > cabal.project"
+ - rm -f cabal.project.freeze
+ - cabal new-build -w ${HC} ${TEST} ${BENCH} --dep -j2 all
+ - cabal new-build -w ${HC} --disable-tests --disable-benchmarks --dep -j2 all
 
 # 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:
  - if [ -f configure.ac ]; then autoreconf -i; fi
- - cabal configure --enable-tests --enable-benchmarks -v2  # -v2 provides useful information for debugging
- - cabal build   # this builds all libraries and executables (including tests/benchmarks)
- - cabal test
- - cabal check
- - cabal sdist   # tests that a source-distribution can be generated
+ - rm -rf .ghc.environment.* 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 all
+ # this builds all libraries and executables (including tests/benchmarks)
+ # - rm -rf ./dist-newstyle
 
-# Check that the resulting source distribution can be built & installed.
-# If there are no other `.tar.gz` files in `dist`, this can be even simpler:
-# `cabal install --force-reinstalls dist/*-*.tar.gz`
- - SRC_TGZ=$(cabal info . | awk '{print $2;exit}').tar.gz &&
-   (cd dist && cabal install --force-reinstalls "$SRC_TGZ")
+ # build & run tests
+ - cabal new-build -w ${HC} ${TEST} ${BENCH} all
+ - if [ "x$TEST" = "x--enable-tests" ]; then cabal new-test -w ${HC} ${TEST} all; fi
 
 # EOF

Setup.hs

@@ -1,2 +1,33 @@
+{-# LANGUAGE CPP #-}
+{-# OPTIONS_GHC -Wall #-}
+module Main (main) where
+
+#ifndef MIN_VERSION_cabal_doctest
+#define MIN_VERSION_cabal_doctest(x,y,z) 0
+#endif
+
+#if MIN_VERSION_cabal_doctest(1,0,0)
+
+import Distribution.Extra.Doctest ( defaultMainWithDoctests )
+main :: IO ()
+main = defaultMainWithDoctests "doctests"
+
+#else
+
+#ifdef MIN_VERSION_Cabal
+-- If the macro is defined, we have new cabal-install,
+-- but for some reason we don't have cabal-doctest in package-db
+--
+-- Probably we are running cabal sdist, when otherwise using new-build
+-- workflow
+#warning You are configuring this package without cabal-doctest installed. \
+         The doctests test-suite will not work as a result. \
+         To fix this, install cabal-doctest before configuring.
+#endif
+
 import Distribution.Simple
+
+main :: IO ()
 main = defaultMain
+
+#endif

install-hspec-discover.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+set -ex
+
+if [ ! -e $HOME/.local/bin/hspec-discover ]; then
+  # Fetch the source
+  cabal get hspec-discover-2.4.4
+  cd hspec-discover-2.4.4
+
+  # Set-up project
+  echo 'packages: .' > cabal.project
+
+  # build exe
+  cabal new-build hspec-discover:exe:hspec-discover
+
+  # copy executable to $HOME/.local/bin
+  cp $(find dist-newstyle -name hspec-discover -type f) $HOME/.local/bin
+fi

src/Data/Swagger/Internal/Schema.hs

@@ -729,7 +729,7 @@ gdeclareNamedSumSchema opts proxy s
 
 type AllNullary = All
 
-class GSumToSchema f where
+class GSumToSchema (f :: * -> *)  where
   gsumToSchema :: SchemaOptions -> proxy f -> Schema -> WriterT AllNullary (Declare (Definitions Schema)) Schema
 
 instance (GSumToSchema f, GSumToSchema g) => GSumToSchema (f :+: g) where
@@ -768,3 +768,5 @@ data Proxy2 a b = Proxy2
 
 data Proxy3 a b c = Proxy3
 
+-- $setup
+-- >>> import Data.Swagger

swagger2.cabal

@@ -10,14 +10,18 @@ author:              Nickolay Kudasov
 maintainer:          nickolay@getshoptv.com
 copyright:           (c) 2015-2016, GetShopTV
 category:            Web
-build-type:          Simple
+build-type:          Custom
 extra-source-files:
     README.md
   , CHANGELOG.md
   , examples/*.hs
   , include/overlapping-compat.h
 cabal-version:       >=1.10
-tested-with:         GHC==7.8.4, GHC==7.10.3, GHC==8.0.1
+tested-with:         GHC==7.8.4, GHC==7.10.3, GHC==8.0.2, GHC==8.2.1
+
+custom-setup
+  setup-depends:
+    base, Cabal, cabal-doctest >=1.0.2 && <1.1
 
 library
   hs-source-dirs:      src
@@ -39,7 +43,7 @@ library
     Data.Swagger.Internal.ParamSchema
     Data.Swagger.Internal.Utils
     Data.Swagger.Internal.AesonUtils
-  build-depends:       base        >=4.7   && <4.10
+  build-depends:       base        >=4.7   && <4.11
                      , base-compat >=0.9.1 && <0.10
                      , aeson       >=0.11.2.1
                      , bytestring
@@ -93,11 +97,11 @@ test-suite spec
     Data.Swagger.Schema.ValidationSpec
   default-language: Haskell2010
 
-test-suite doctest
-  build-depends:    base, doctest, Glob
+test-suite doctests
+  build-depends:    base, doctest, Glob, QuickCheck
   default-language: Haskell2010
   hs-source-dirs:   test
-  main-is:          DocTest.hs
+  main-is:          doctests.hs
   type:             exitcode-stdio-1.0
 
 source-repository head

test/doctests.hs

@@ -0,0 +1,12 @@
+module Main where
+
+import Build_doctests (flags, pkgs, module_sources)
+import Data.Foldable (traverse_)
+import Test.DocTest
+
+main :: IO ()
+main = do
+    traverse_ putStrLn args
+    doctest args
+  where
+    args = flags ++ pkgs ++ module_sources