Git Action to run coverage

[c-bik]

TBD:

1. apt-get install lcov in dderl_dev container (FYI @walter-weinmann)
2. @c-bik to provide a script to error out when overall coverage below parameterized coverage
3. @shamis add konnexionsw/ora_bench_db from docker hub into action (or another way to start a oracle DB)
4. @c-bik / @walter-weinmann to find a to dynamically define Oracle DB IP into rebar3 eunit config

I wanted to add all of us assigned to it but current git subscription doesn't allow that

[c-bik]

@shamis please try

oranif/cover.sh

Lines 1 to 34 in b416c80

	#!/bin/bash
	target_coverage=${1:-100}
	rm -f coverage.info
	# capture coverage info
	lcov --quiet --directory . --capture --output-file coverage.info
	# header files are not covered
	lcov --quiet --remove coverage.info "*/odpi/src/*.c" "*.h" --output-file coverage.info
	# Sample structure of lcov --summary coverage.info
	# Reading tracefile coverage.info
	# Summary coverage rate:
	# lines......: 13.2% (142 of 1078 lines)
	# functions..: 21.1% (12 of 57 functions)
	# branches...: no data found
	#
	# grep to find the 'lines...' line with total % (e,g, 13.2 above)
	lc_summary=$(lcov --summary coverage.info 2>&1 | grep -zo "lines[.]\+: [0-9.]\+" | tr '\0' '\n')
	# stip off the rest to get the number
	current_coverage=$(echo $lc_summary | sed 's/lines\.*: \(.*\)/\1/')
	# calculate difference to target
	result=$(awk 'BEGIN { print('$current_coverage'<'$target_coverage')?"F":"P"}')
	if [ "$result" = "P" ]; then
	exit 0
	else
	lcov --list coverage.info
	echo "------------------------"
	echo "TARGET : $target_coverage %"
	echo "CURRENT : $current_coverage %"
	echo "------------------------"
	exit 1
	fi