coverageReport.sh

#!/bin/sh
#
#
# Small helper script to produce a coverage report when executing the fuzz-model
# against the current corpus.
#

set -eu


# Build the fuzzer and fetch dependency-jars
./gradlew shadowJar getDeps


# extract jar-files of Apache Commons Compress
mkdir -p build/compressfiles
cd build/compressfiles

# then unpack the class-files
for i in `find ../runtime -name commons-compress-*.jar`; do
  echo $i
  unzip -o -q $i
done

cd -


# Fetch JaCoCo Agent
test -f jacoco-0.8.12.zip || wget --continue https://repo1.maven.org/maven2/org/jacoco/jacoco/0.8.12/jacoco-0.8.12.zip
unzip -o jacoco-0.8.12.zip lib/jacocoagent.jar lib/jacococli.jar
mv lib/jacocoagent.jar lib/jacococli.jar build/
rmdir lib

mkdir -p build/jacoco


# Run Jazzer with JaCoCo-Agent to produce coverage information
./jazzer \
  --cp=build/libs/compress-fuzz-all.jar \
  --instrumentation_includes=org.apache.commons.** \
  --target_class=org.dstadler.compress.fuzz.Fuzz \
  --nohooks \
  --jvm_args="-javaagent\\:build/jacocoagent.jar=destfile=build/jacoco/corpus.exec" \
  -rss_limit_mb=4096 \
  -runs=0 \
  corpus


# Finally create the JaCoCo report
java -jar build/jacococli.jar report build/jacoco/corpus.exec \
 --classfiles build/compressfiles \
 --sourcefiles /opt/apache/commons-compress/git/src/main/java/ \
 --html build/reports/jacoco


echo All Done, report is at build/reports/jacoco/index.html