BuildReports: Add test report log

[ysangkok]

The test report log contains the actual output emitted by the test-suite
in a given Cabal package.

The test log only contains the logs of the build of the test.

Fixes #1397.

Demo

These were the logs as emitted by cabal run exe:hackage-build -- build testpkg -v:

Downloading http://localhost:8080/package/testpkg-0.4.0.1/testpkg-0.4.0.1.tar.gz Unpacking to testpkg-0.4.0.1/ Building testpkg-0.4.0.1 cabal --config-file=/home/janus/flipstone/hackage-server/build-cache/cabal-config v1-install --enable-documentation --htmldir=/home/janus/flipstone/hackage-server/build-cache/tmp-install/haddocks/$pkgid-docs --disable-optimization --ghc-option -O0 --disable-library-for-ghci --package-db=clear --package-db=global --package-db=/home/janus/flipstone/hackage-server/build-cache/tmp-install/packages.db --reinstall --force-reinstalls --haddock-html-location=/package/$pkg-$version/docs --haddock-contents-location=/package/$pkg-$version --haddock-hyperlink-source --prefix=/home/janus/flipstone/hackage-server/build-cache/tmp-install --build-summary=/home/janus/flipstone/hackage-server/build-cache/tmp-install/reports/$pkgid.report --report-planning-failure --haddock-html --haddock-hoogle --haddock-option=--quickjump testpkg-0.4.0.1 Build results for testpkg-0.4.0.1: /home/janus/flipstone/hackage-server/build-cache/results/testpkg-0.4.0.1.report /home/janus/flipstone/hackage-server/build-cache/results/testpkg-0.4.0.1-docs.tar.gz /home/janus/flipstone/hackage-server/build-cache/results/testpkg-0.4.0.1.log Testing testpkg-0.4.0.1 cabal --config-file=/home/janus/flipstone/hackage-server/build-cache/cabal-config v2-test all --enable-coverage --test-log=/home/janus/flipstone/hackage-server/build-cache/tmp-install/reports/testpkg-0.4.0.1.test --test-show-details=never --disable-optimization Test results for testpkg-0.4.0.1: /home/janus/flipstone/hackage-server/build-cache/results/testpkg-0.4.0.1.test 

Cabal file fragment:

test-suite simple main-is: Main.hs hs-source-dirs: test type: exitcode-stdio-1.0 build-depends: base >=4 && <5 default-language: Haskell2010 

Main.hs (of test-suite) contents:

main = putStrLn "this is printed from custom test suite" 

[gbaz]

this looks good to me. @bgamari i think we'll need to deploy the builder and the main hackage in sync for this... when you get time, take a look and then we can coordinate?

[ysangkok]

I tried testing the migration locally, and I am getting an error with Acid.Core "too few bytes". So there must be some problem with this PR, or maybe it is exposing an existing issue... I will report back if I find out what the problem is. I think I'll try to write a unit test for this.

[ysangkok]

I've done some migration testsusing the following REPL code:

ghci> :set -XScopedTypeVariables ghci> :m +Distribution.Server.Features.BuildReports.BuildReports Data.Acid.Core Data.SafeCopy Data.Map Test.QuickCheck Data.Either ghci> b :: PkgBuildReports_v4 <- generate arbitrary ghci> isRight (serialiserDecode safeCopySerialiser (serialiserEncode safeCopySerialiser b) :: Either String PkgBuildReports) True 

I still haven't discovered any issues...