#!/bin/bash

set -exuo pipefail

REPORT="@PROJECT_NAME@-coverage.info"
STDERR="@PROJECT_NAME@-coverage.stderr"
HTML_DIR="@PROJECT_NAME@-coverage"

SRCS_DIR="/usr/src/debug/@PROJECT_NAME@-@VERSION@"

# create dir for the report
mkdir $HTML_DIR

# remove old gcda files
find / -iname "*.gcda" -exec rm {} \;

# launch unit tests
ckm-unit-tests

# copy source files
cp -rp $SRCS_DIR*/* "@CMAKE_BINARY_DIR@"

# copy gcda files
cp -r "@COVERAGE_BUILD_DIR@"/* "@COVERAGE_DIR@"

# prepare report
rm -f $STDERR

# Due to mismatch in the version of gcc/gcov and lcov, we need to ignore few errors
IGNORE_ERRORS=" --ignore-errors unused,unused \
                --ignore-errors empty,empty \
                --ignore-errors mismatch,mismatch \
                --ignore-errors gcov,gcov "

lcov $IGNORE_ERRORS --no-external -c -d "@COVERAGE_DIR@" -b "@CMAKE_BINARY_DIR@" -o $REPORT 2>$STDERR
lcov $IGNORE_ERRORS -r $REPORT "@CMAKE_BINARY_DIR@/unit-tests/*" -o $REPORT
lcov $IGNORE_ERRORS -r $REPORT "@CMAKE_BINARY_DIR@/common/*" -o $REPORT

# Let's skip lcov warning
# geninfo: WARNING: using JSON module "JSON::PP" - which is much slower than some alternatives.
# Consider installing one of JSON::XS or Cpanel::JSON::XS
sed -i '/WARNING/d' $STDERR

# check errors
if [ -s $STDERR ]
then
    echo "Errors detected (see $STDERR). Aborting."
    exit 1
fi

# html
genhtml $REPORT --output-directory $HTML_DIR/