pre-commit

#Will run from the root directory
#Only works with gradle, not hard to adjust though


#cat ./pre-commit >> .git/hooks/pre-commit
#Add the following plugin to your build.gradle:
#plugins {
#    id "jacoco"
#}
#Add the following config to the same build.gradle:
#jacocoTestReport {
#    reports {
#        csv.required = true
#    }
#}

java_module_to_test=":backend"
path_to_jacoco_report="backend/build/reports/jacoco/test/jacocoTestReport.csv"
badge_name="Java_Test_Coverage"

./gradlew $java_module_to_test:test $java_module_to_test:jacocoTestReport -q
missed=0
covered=0
while read -r p; do
  missed=$((missed + $(echo "$p" | cut -d "," -f 4)))
  covered=$((covered + $(echo "$p" | cut -d "," -f 5)))
done <<< "$(cat $path_to_jacoco_report | tail -n +2)"
total=$((covered + missed))
percent=$((covered * 100 / total))

colour="brightgreen"
if ((percent < 50))
then
  colour="red"
elif ((percent < 60))
then
  colour="orange"
elif ((percent < 70))
then
  colour="yellow"
elif ((percent < 80))
then
  colour="yellowgreen"
elif ((percent < 90))
then
  colour="green"
elif ((percent < 100))
then
  colour="brightgreen"
else
  colour="blueviolet"
fi
badge=\\\!\[\]\(https:\\/\\/img.shields.io\\/badge\\/$badge_name-"$percent"%25-"$colour"\)

if (grep -q $badge_name "./README.md")
then
    badgeLineNum=$(grep -n $badge_name "./README.md"  | cut -d : -f 1)
    sed -i "" "$badgeLineNum s/.*/$badge/" ./README.md
else
    sed -i "" '1i\
'"$badge"'\
''\
' ./README.md
fi

git add ./README.md