#!/bin/sh
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# Copyright 2016 Google Inc.
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#
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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if [ -z "$1" ]; then
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cat <<-EOM
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Usage:
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$0 SKIA_EXECUTABLE [ARGUMENTS_FOR_EXECUTABLE...]
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Run something like this:
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$0 dm --src tests
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or
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$0 dm --src gm skp
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EOM
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exit 1
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fi
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set -x
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set -e
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cd "$(dirname "$0")/.."
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EXECUTABLE="$1"
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shift
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DIR="$(mktemp -d "${TMPDIR:-/tmp}/skia_coverage_XXXXXXXXXX")"
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BUILD=out/coverage
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# Build $EXECUTABLE
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bin/sync
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bin/fetch-gn
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#TODO: make this work with Clang.
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ARGS='cc="gcc" cxx="g++" extra_cflags=["--coverage"] extra_ldflags=["--coverage"]'
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gn gen --args="$ARGS" "$BUILD"
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ninja -C "$BUILD" "$EXECUTABLE"
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GCOV="$(realpath tools/gcov_shim)"
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# Generate a zero-baseline so files not covered by $EXECUTABLE $@ will
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# still show up in the report. This reads the .gcno files that are
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# created at compile time.
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lcov -q --gcov-tool="$GCOV" -c -b "$BUILD" -d "$BUILD" -o "$DIR"/baseline -i
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# Running the binary generates the real coverage information, the .gcda files.
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"$BUILD"/"$EXECUTABLE" "$@"
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lcov -q --gcov-tool="$GCOV" -c -b "$BUILD" -d "$BUILD" -o "$DIR"/coverage
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lcov -q -a "$DIR"/baseline -a "$DIR"/coverage -o "$DIR"/merged
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genhtml -q "$DIR"/merged --legend -o "$DIR"/coverage_report --ignore-errors source
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xdg-open "$DIR"/coverage_report/index.html
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