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#!/bin/bash
set -o errexit # Exit the script with error if any of the commands fail
FUZZTIME=10m
# Change the working directory to the root of the mongo repository directory
cd $PROJECT_DIRECTORY
# Get all go test files that contain a fuzz test.
FILES=$(grep -r --include='**_test.go' --files-with-matches 'func Fuzz' .)
# For each file, run all of the fuzz tests in sequence, each for -fuzztime=FUZZTIME.
for FILE in ${FILES}
do
PARENTDIR="$(dirname -- "$FILE")"
# Get a list of all fuzz tests in the file.
FUNCS=$(grep -o 'func Fuzz[A-Za-z0-9]*' $FILE | cut -d' ' -f2)
# For each fuzz test in the file, run it for FUZZTIME.
for FUNC in ${FUNCS}
do
echo "Fuzzing \"${FUNC}\" in \"${FILE}\""
# Create a set of directories that are already in the subdirectories testdata/fuzz/$fuzzer corpus. This
# set will be used to differentiate between new and old corpus files.
declare -a cset
if [ -d $PARENTDIR/testdata/fuzz/$FUNC ]; then
# Iterate over the files in the corpus directory and add them to the set.
for SEED in $PARENTDIR/testdata/fuzz/$FUNC/*
do
cset+=("$SEED")
done
fi
go test ${PARENTDIR} -run=${FUNC} -fuzz=${FUNC} -fuzztime=${FUZZTIME} || true
# Check if any new corpus files were generated for the fuzzer. If there are new corpus files, move them
# to $PROJECT_DIRECTORY/fuzz/$FUNC/* so they can be tarred up and uploaded to S3.
if [ -d $PARENTDIR/testdata/fuzz/$FUNC ]; then
# Iterate over the files in the corpus directory and check if they are in the set.
for CORPUS_FILE in $PARENTDIR/testdata/fuzz/$FUNC/*
do
# Check to see if the value for CORPUS_FILE is in cset.
if [[ ! " ${cset[*]} " =~ " ${CORPUS_FILE} " ]]; then
# Create the directory if it doesn't exist.
if [ ! -d $PROJECT_DIRECTORY/fuzz/$FUNC ]; then
mkdir -p $PROJECT_DIRECTORY/fuzz/$FUNC
fi
# Move the file to the directory.
mv $CORPUS_FILE $PROJECT_DIRECTORY/fuzz/$FUNC
echo "Moved $CORPUS_FILE to $PROJECT_DIRECTORY/fuzz/$FUNC"
fi
done
fi
done
done
# If the fuzz directory exists, then tar it up in preparation to upload to S3.
if [ -d $PROJECT_DIRECTORY/fuzz ]; then
echo "Tarring up fuzz directory"
tar -czf $PROJECT_DIRECTORY/fuzz.tgz $PROJECT_DIRECTORY/fuzz
# Exit with code 1 to indicate that errors occurred in fuzz tests, resulting in corpus files being generated.
# This will trigger a notification to be sent to the Go Driver team.
exit 1
fi