[For discussion] Automated Travis CI (OS X) and Docker (Linux) builds

.travis.yml

@@ -0,0 +1,35 @@
+language: objective-c
+
+# Log build system information (illegal instruction errors are fickle)
+# Get Cabal
+# Trigger creation of ~/.cabal/config by running a cabal command
+# Remove the cabal config containing $ncpus a la readme
+# Get LLVM 3.0
+# Add to the PATH
+# Try compiling the hello world example with the baseline x64-class GHC
+# (and check that it has the LLVM back end, GCC back end is no good
+# for cross compiling to ARM)
+before_install:
+  - pwd
+  - sw_vers
+  - brew update
+  - brew install ghc cabal-install
+  - cabal update
+  - cat ~/.cabal/config
+  - "sed -i '' '/jobs: $ncpus/d' ~/.cabal/config"
+  - cat ~/.cabal/config
+  - echo -e "\nPATH=`pwd`:"'$PATH' >> ~/.profile
+  - cat ~/.profile
+  - PATH=`pwd`:$PATH
+  - echo $PATH
+  - ghc --version
+  - cabal -V
+  - llvm-gcc --version
+  - ghc -v .travis/helloworld.hs
+
+# Due to PATH alterations the preceding ./ is in theory unnecessary.
+install: installGHCiOS.sh
+
+# Try compiling a hello world Haskell file
+# to see if ghc-ios is working.
+script: ghc-ios -v .travis/helloworld.hs

.travis/cabal-config

@@ -0,0 +1,78 @@
+-- This is the configuration file for the 'cabal' command line tool.
+
+-- The available configuration options are listed below.
+-- Some of them have default values listed.
+
+-- Lines (like this one) beginning with '--' are comments.
+-- Be careful with spaces and indentation because they are
+-- used to indicate layout for nested sections.
+
+-- Cabal library version: 1.22.1.0
+-- cabal-install version: 1.22.0.1
+
+
+-- require-sandbox: False
+-- ignore-sandbox: False
+remote-repo: hackage.haskell.org:http://hackage.haskell.org/packages/archive
+-- remote-repo-cache: /Users/travis/.cabal/packages
+-- local-repo:
+-- logs-dir:
+-- world-file: /Users/travis/.cabal/world
+-- verbose: 1
+-- compiler: ghc
+-- with-compiler:
+-- with-hc-pkg:
+-- program-prefix: 
+-- program-suffix: 
+-- library-vanilla: True
+-- library-profiling:
+-- shared:
+-- executable-dynamic: False
+-- profiling:
+-- executable-profiling:
+-- optimization: True
+-- debug-info: False
+-- library-for-ghci:
+-- split-objs: False
+-- executable-stripping: True
+-- library-stripping: True
+-- configure-option:
+-- user-install: True
+-- package-db:
+-- flags:
+-- extra-include-dirs:
+-- extra-lib-dirs:
+-- extra-prog-path: /Users/travis/.cabal/bin
+-- instantiate-with:
+-- tests: False
+-- coverage: False
+-- library-coverage:
+-- exact-configuration: False
+-- benchmarks: False
+-- relocatable: False
+-- cabal-lib-version:
+-- constraint:
+-- preference:
+-- solver: choose
+-- allow-newer: False
+-- documentation: False
+-- doc-index-file: $datadir/doc/$arch-$os-$compiler/index.html
+-- max-backjumps: 2000
+-- reorder-goals: False
+-- shadow-installed-packages: False
+-- strong-flags: False
+-- reinstall: False
+-- avoid-reinstalls: False
+-- force-reinstalls: False
+-- upgrade-dependencies: False
+-- root-cmd:
+-- symlink-bindir:
+-- build-summary: /Users/travis/.cabal/logs/build.log
+-- build-log:
+remote-build-reporting: anonymous
+-- report-planning-failure: False
+-- one-shot: False
+-- run-tests:
+-- username:
+-- password:
+

.travis/helloworld.hs

@@ -0,0 +1,4 @@
+module Main
+  where
+
+main=putStrLn "Hello, World!"

Dockerfile

@@ -0,0 +1,39 @@
+###
+# This compiles a Docker base image of the ghc-ios compiler.
+# This would be useful for downstream projects that want a Haskell platform Docker base
+# image which supports iOS cross-compilation, to avoid having to install ghc-ios in their
+# own project-specific Docker images.
+###
+
+# Preinstall regular Haskell platform
+FROM haskell:7.8
+
+MAINTAINER Chris Kilding <[email protected]>
+
+# Add current repo contents
+# Mirror the workdir structure suggested from the README,
+# but we cannot use relative paths in a Dockerfile ADD command,
+# so must use the absolute /usr top level directory.
+ADD . /usr/bin/ghc-ios-scripts
+WORKDIR /usr/bin/ghc-ios-scripts
+
+# Add the project directory to the path
+RUN echo -e "\nPATH=/usr/bin/ghc-ios-scripts:"'$PATH' >> ~/.profile
+RUN PATH=/usr/bin/ghc-ios-scripts:$PATH
+
+# Need CURL on the system for the script to work
+RUN apt-get update
+RUN apt-get -y install curl
+
+# Get LLVM 3.0 for the target platform
+# On the Haskell Docker base image (which is Debian Wheezy based)
+# we need the Debian version of clang+llvm
+RUN curl -O http://llvm.org/releases/3.0/clang+llvm-3.0-x86_64-linux-debian.tar.gz   
+RUN tar xvf clang+llvm-3.0-x86_64-linux-debian.tar.gz
+RUN mv clang+llvm-3.0-x86_64-linux-debian /usr/local/clang-3.0
+RUN rm clang+llvm-3.0-x86_64-linux-debian.tar.gz
+
+# Run the installer
+RUN ./installGHCiOS.sh
+
+CMD ["ghc-ios"]

installGHCiOS.sh

@@ -2,55 +2,39 @@
 
 cd /tmp
 
-if [[ ! -f /usr/local/clang-3.0/bin/llc ]]; then
-    echo "Downloading LLVM 3.0..."
-    curl -O http://llvm.org/releases/3.0/clang+llvm-3.0-x86_64-apple-darwin11.tar.gz
-    tar xvf clang+llvm-3.0-x86_64-apple-darwin11.tar.gz
-    mv clang+llvm-3.0-x86_64-apple-darwin11 /usr/local/clang-3.0
-    rm clang+llvm-3.0-x86_64-apple-darwin11.tar.gz
-fi
-
-
 echo "Downloading GHC for iOS devices..."
 
-curl -L -O https://www.haskell.org/ghc/dist/7.8.3/ghc-7.8.3-arm-apple-ios.tar.xz
-tar xvf ghc-7.8.3-arm-apple-ios.tar.xz && mv ghc-7.8.3 ghc-7.8.3-arm
-rm ghc-7.8.3-arm-apple-ios.tar.xz
-cd ghc-7.8.3-arm
+curl -L -O https://downloads.haskell.org/~ghc/7.10.1/ghc-7.10.1-src.tar.xz
+tar xvf ghc-7.10.1-src.tar.xz && mv ghc-7.10.1 ghc-7.10.1-arm
+rm ghc-7.10.1-src.tar.xz
+cd ghc-7.10.1-arm
 
 # Remove befuddling inclusion of my local paths
 LC_CTYPE=C 
 LANG=C
+CFLAGS="-mmacosx-version-min=10.9"
+CXXFLAGS="-mmacosx-version-min=10.9"
+CPPFLAGS="-mmacosx-version-min=10.9"
+
 find . -type f -not -name .DS_Store -not -name "*.a" -print0 | xargs -0 sed -i '' 's|/Users/lukexi/Code/ghc-ios-scripts/||g'
 
-./configure
-# Fix the settings file to point to the right scripts and clang versions
-sed -i '' 's|/usr/bin/gcc|arm-apple-darwin10-clang|g' settings
-sed -i '' 's|/usr/bin/ld|arm-apple-darwin10-ld|g' settings
-sed -i '' 's|"opt"|"/usr/local/clang-3.0/bin/opt"|g' settings
-sed -i '' 's|"llc"|"/usr/local/clang-3.0/bin/llc"|g' settings
-make install
-cd ..
-rm -r ghc-7.8.3-arm
+# Enable the build.mk file (essential for telling vanilla GHC to target iOS)
+mv mk/build.mk.sample mk/build.mk
+# Select a cross-compiling build flavour
+sed -i '' 's/#BuildFlavour  = quick-cross/BuildFlavour  = quick-cross/g' mk/build.mk
+# TODO should we force LLVM backend on GHC stage1 too?
+# sed -i '' 's/GhcStage1HcOpts    = -O/GhcStage1HcOpts    = -O -fllvm/g' mk/build.mk
 
-echo "Downloading GHC for the iOS simulator..."
-cd /tmp
-curl -L -O https://www.haskell.org/ghc/dist/7.8.3/ghc-7.8.3-i386-apple-ios.tar.xz
-tar xvf ghc-7.8.3-i386-apple-ios.tar.xz && mv ghc-7.8.3 ghc-7.8.3-i386
-rm ghc-7.8.3-i386-apple-ios.tar.xz
-cd ghc-7.8.3-i386
+echo "Contents of mk/build.mk:"
+cat mk/build.mk
 
-# ditto above
-LC_CTYPE=C 
-LANG=C
-find . -type f -not -name .DS_Store -not -name "*.a" -print0 | xargs -0 sed -i '' 's|/Users/lukexi/Code/ghc-ios-scripts/||g'
+echo "Arguments for the configure script are:"
+./configure --help
 
-./configure
+./configure --target=arm-apple-darwin10 --with-gcc=arm-apple-darwin10-clang
 # Fix the settings file to point to the right scripts and clang versions
-sed -i '' 's|/usr/bin/gcc|i386-apple-darwin11-clang|g' settings
-sed -i '' 's|/usr/bin/ld|i386-apple-darwin11-ld|g' settings
-sed -i '' 's|"opt"|"/usr/local/clang-3.0/bin/opt"|g' settings
-sed -i '' 's|"llc"|"/usr/local/clang-3.0/bin/llc"|g' settings
+sed -i '' 's|/usr/bin/gcc|arm-apple-darwin10-clang|g' settings
+sed -i '' 's|/usr/bin/ld|arm-apple-darwin10-ld|g' settings
 make install
 cd ..
-rm -r ghc-7.8.3-i386
+rm -r ghc-7.10.1-arm