1#!/bin/sh
2# Copyright 2016 Google Inc.
3#
4# Use of this source code is governed by a BSD-style license that can be
5# found in the LICENSE file.
6
7if [ -z "$1" ]; then
8    cat <<-EOM
9	Usage:
10	  $0 SKIA_EXECUTABLE [ARGUMENTS_FOR_EXECUTABLE...]
11
12	Run something like this:
13	  $0 dm --src tests
14	or
15	  $0 dm --src gm skp
16
17	EOM
18    exit 1
19fi
20
21set -x
22set -e
23
24cd "$(dirname "$0")/.."
25
26EXECUTABLE="$1"
27shift
28
29DIR="$(mktemp -d "${TMPDIR:-/tmp}/skia_coverage_XXXXXXXXXX")"
30BUILD=out/coverage
31
32# Build $EXECUTABLE
33bin/sync
34bin/fetch-gn
35
36#TODO: make this work with Clang.
37ARGS='cc="gcc" cxx="g++" extra_cflags=["--coverage"] extra_ldflags=["--coverage"]'
38gn gen --args="$ARGS" "$BUILD"
39
40ninja -C "$BUILD" "$EXECUTABLE"
41
42GCOV="$(realpath tools/gcov_shim)"
43
44# Generate a zero-baseline so files not covered by $EXECUTABLE $@ will
45# still show up in the report.  This reads the .gcno files that are
46# created at compile time.
47lcov -q --gcov-tool="$GCOV" -c -b "$BUILD" -d "$BUILD" -o "$DIR"/baseline -i
48
49# Running the binary generates the real coverage information, the .gcda files.
50"$BUILD"/"$EXECUTABLE" "$@"
51
52lcov -q --gcov-tool="$GCOV" -c -b "$BUILD" -d "$BUILD" -o "$DIR"/coverage
53
54lcov -q -a "$DIR"/baseline -a "$DIR"/coverage -o "$DIR"/merged
55
56genhtml -q "$DIR"/merged --legend -o "$DIR"/coverage_report --ignore-errors source
57
58xdg-open "$DIR"/coverage_report/index.html
59