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#!/usr/bin/env bash
# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
# Exit on error.
set -e
if [ -n "$USE_CLANG" ]; then
echo "Error: Coverage test is supported only for gcc."
exit 1
fi
ROOT=".."
# Fetch right version of gcov
if [ -d /mnt/gvfs/third-party -a -z "$CXX" ]; then
source $ROOT/build_tools/fbcode_config_platform009.sh
GCOV=$GCC_BASE/bin/gcov
else
GCOV=$(which gcov)
fi
echo -e "Using $GCOV"
COVERAGE_DIR="$PWD/COVERAGE_REPORT"
mkdir -p $COVERAGE_DIR
# Find all gcno files to generate the coverage report
PYTHON=${1:-`which python3`}
echo -e "Using $PYTHON"
GCNO_FILES=`find $ROOT -name "*.gcno"`
$GCOV --preserve-paths --relative-only --no-output $GCNO_FILES 2>/dev/null |
# Parse the raw gcov report to more human readable form.
$PYTHON $ROOT/coverage/parse_gcov_output.py |
# Write the output to both stdout and report file.
tee $COVERAGE_DIR/coverage_report_all.txt &&
echo -e "Generated coverage report for all files: $COVERAGE_DIR/coverage_report_all.txt\n"
# TODO: we also need to get the files of the latest commits.
# Get the most recently committed files.
LATEST_FILES=`
git show --pretty="format:" --name-only HEAD |
grep -v "^$" |
paste -s -d,`
RECENT_REPORT=$COVERAGE_DIR/coverage_report_recent.txt
echo -e "Recently updated files: $LATEST_FILES\n" > $RECENT_REPORT
$GCOV --preserve-paths --relative-only --no-output $GCNO_FILES 2>/dev/null |
$PYTHON $ROOT/coverage/parse_gcov_output.py -interested-files $LATEST_FILES |
tee -a $RECENT_REPORT &&
echo -e "Generated coverage report for recently updated files: $RECENT_REPORT\n"
# Unless otherwise specified, we'll not generate html report by default
if [ -z "$HTML" ]; then
exit 0
fi
# Generate the html report. If we cannot find lcov in this machine, we'll simply
# skip this step.
echo "Generating the html coverage report..."
LCOV=$(which lcov || true 2>/dev/null)
if [ -z $LCOV ]
then
echo "Skip: Cannot find lcov to generate the html report."
exit 0
fi
LCOV_VERSION=$(lcov -v | grep 1.1 || true)
if [ $LCOV_VERSION ]
then
echo "Not supported lcov version. Expect lcov 1.1."
exit 0
fi
(cd $ROOT; lcov --no-external \
--capture \
--directory $PWD \
--gcov-tool $GCOV \
--output-file $COVERAGE_DIR/coverage.info)
genhtml $COVERAGE_DIR/coverage.info -o $COVERAGE_DIR
echo "HTML Coverage report is generated in $COVERAGE_DIR"
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