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# This function builds and tests an Autoconf-style source tarball.
# The result can be installed normally in an environment (e.g., after
# making it available through a channel). If `doCoverageAnalysis' is
# true, it does an ordinary build from a source tarball, except that
# it turns on GCC's coverage analysis feature. It then runs `make
# check' and produces a coverage analysis report using `lcov'.
{ doCoverageAnalysis ? false
, lcovFilter ? []
, src, stdenv
, name ? if doCoverageAnalysis then "nix-coverage" else "nix-build"
, ... } @ args:
stdenv.mkDerivation (
{
# Also run a `make check'.
doCheck = true;
# When doing coverage analysis, we don't care about the result.
dontInstall = doCoverageAnalysis;
showBuildStats = true;
phases = "unpackPhase patchPhase configurePhase buildPhase checkPhase installPhase fixupPhase distPhase ${if doCoverageAnalysis then "coverageReportPhase" else ""} finalPhase";
finalPhase =
''
# Propagate the release name of the source tarball. This is
# to get nice package names in channels.
if test -e $origSrc/nix-support/hydra-release-name; then
cp $origSrc/nix-support/hydra-release-name $out/nix-support/hydra-release-name
fi
'';
}
// args //
{
name = name + (if src ? version then "-" + src.version else "");
postHook = ''
ensureDir $out/nix-support
echo "$system" > $out/nix-support/system
if test -z "${toString doCoverageAnalysis}"; then
echo "nix-build none $out" >> $out/nix-support/hydra-build-products
fi
# If `src' is the result of a call to `makeSourceTarball', then it
# has a subdirectory containing the actual tarball(s). If there are
# multiple tarballs, just pick the first one.
origSrc=$src
if test -d $src/tarballs; then
src=$(ls $src/tarballs/*.tar.bz2 $src/tarballs/*.tar.gz | sort | head -1)
fi
# Set GCC flags for coverage analysis, if desired.
if test -n "${toString doCoverageAnalysis}"; then
export NIX_CFLAGS_COMPILE="-O0 --coverage $NIX_CFLAGS_COMPILE"
export CFLAGS="-O0"
export CXXFLAGS="-O0"
fi
''; # */
# In the report phase, create a coverage analysis report.
coverageReportPhase = if doCoverageAnalysis then ''
${args.lcov}/bin/lcov --directory . --capture --output-file app.info
set -o noglob
${args.lcov}/bin/lcov --remove app.info $lcovFilter > app2.info
set +o noglob
mv app2.info app.info
mkdir $out/coverage
${args.lcov}/bin/genhtml app.info -o $out/coverage > log
# Grab the overall coverage percentage for use in release overviews.
grep "Overall coverage rate" log | sed 's/^.*(\(.*\)%).*$/\1/' > $out/nix-support/coverage-rate
echo "report coverage $out/coverage" >> $out/nix-support/hydra-build-products
'' else "";
lcovFilter = ["/nix/store/*"] ++ lcovFilter;
meta = (if args ? meta then args.meta else {}) // {
description = if doCoverageAnalysis then "Coverage analysis" else "Native Nix build on ${stdenv.system}";
};
}
)
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