@@ -32,8 +32,6 @@ before_install:
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- unset CC
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- export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:$PATH
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- # We install tidal-0.9-dev from git
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- # and build it in a sandbox
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install :
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- cabal --version
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- echo "$(ghc --version) [$(ghc --print-project-git-commit-id 2> /dev/null || echo '?')]"
@@ -44,7 +42,33 @@ install:
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fi
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- travis_retry cabal update -v
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- sed -i 's/^jobs:/-- jobs:/' ${HOME}/.cabal/config
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- - cabal install --only-dependencies
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+ - cabal install --only-dependencies --enable-tests --enable-benchmarks --dry -v > installplan.txt
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+ - sed -i -e '1,/^Resolving /d' installplan.txt
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+ - cat installplan.txt
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+
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+ # check whether current requested install-plan matches cached package-db snapshot
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+ - if diff -u installplan.txt $HOME/.cabsnap/installplan.txt;
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+ then
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+ echo "cabal build-cache HIT";
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+ rm -rfv .ghc;
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+ cp -a $HOME/.cabsnap/ghc $HOME/.ghc;
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+ cp -a $HOME/.cabsnap/lib $HOME/.cabsnap/share $HOME/.cabsnap/bin $HOME/.cabal/;
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+ else
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+ echo "cabal build-cache MISS";
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+ rm -rf $HOME/.cabsnap;
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+ mkdir -p $HOME/.ghc $HOME/.cabal/lib $HOME/.cabal/share $HOME/.cabal/bin;
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+ cabal install --only-dependencies --enable-tests --enable-benchmarks;
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+ fi
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+
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+ # snapshot package-db on cache miss
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+ - if [ ! -d $HOME/.cabsnap ];
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+ then
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+ echo "snapshotting package-db to build-cache";
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+ mkdir $HOME/.cabsnap;
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+ cp -a $HOME/.ghc $HOME/.cabsnap/ghc;
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+ cp -a $HOME/.cabal/lib $HOME/.cabal/share $HOME/.cabal/bin installplan.txt $HOME/.cabsnap/;
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+ fi
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+
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# Here starts the actual work to be performed for the package under test;
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# any command which exits with a non-zero exit code causes the build to fail.
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script :
@@ -54,6 +78,7 @@ script:
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- cabal test
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- cabal check
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- cabal sdist # tests that a source-distribution can be generated
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+
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# Check that the resulting source distribution can be built & installed.
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# If there are no other `.tar.gz` files in `dist`, this can be even simpler:
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# `cabal install --force-reinstalls dist/*-*.tar.gz`
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