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|
#!/bin/sh
# TODO: set -e
set -x
# TODO: check parameters
hash_good=$1
hash_bad=$2
options=$3
expected=$4
# TODO: verify "good" commit happened before "bad" commit
# 0 - regular result based bisect
# 1 - find commit which started hang
# 2 - find commit which resolved hang
hang=0
script_dir="$(dirname "$(realpath "$0")")"
# TODO: make configurable
bisect_dir=~/.bisect
mkdir -p "$bisect_dir" || exit 1
cd "$bisect_dir" || exit 1
if [ ! -d 'cppcheck' ]; then
git clone https://github.com/danmar/cppcheck.git || exit 1
fi
bisect_repo_dir="$bisect_dir/cppcheck"
cd $bisect_repo_dir || exit 1
git fetch --all --tags || exit 1
# clean up in case we previously exited prematurely
git restore . || exit 1
git clean -df || exit 1
# reset potentially unfinished bisect - also reverts to 'main' branch
git bisect reset || exit 1
# update `main` branch
git pull || exit 1
# TODO: filter addons, cfg and platforms based on the options
# limit to paths which actually affect the analysis
git bisect start -- Makefile 'addons/*.py' 'cfg/*.cfg' 'cli/*.cpp' 'cli/*.h' 'externals/**/*.cpp' 'externals/**/*.h' 'lib/*.cpp' 'lib/*.h' platforms tools/matchcompiler.py || exit 1
git checkout "$hash_good" || exit 1
if [ $hang -ne 0 ]; then
# TODO: exitcode overflow on 255
# get expected time from good commit
python3 "$script_dir/bisect_hang.py" "$bisect_dir" "$options"
elapsed_time=$?
else
# verify the given commit is actually "good"
python3 "$script_dir/bisect_res.py" "$bisect_dir" "$options" "$expected"
# shellcheck disable=SC2181
if [ $? -ne 0 ]; then
echo "given good commit is not actually good"
exit 1
fi
fi
# mark commit as "good"
git bisect good || exit 1
git checkout "$hash_bad" || exit 1
# verify the given commit is actually "bad"
if [ $hang -ne 0 ]; then
python3 "$script_dir/bisect_hang.py" "$bisect_dir" "$options" $elapsed_time $hang
else
python3 "$script_dir/bisect_res.py" "$bisect_dir" "$options" "$expected"
fi
if [ $? -ne 1 ]; then
echo "given bad commit is not actually bad"
exit 1
fi
# mark commit as "bad"
git bisect bad || exit 1
# perform the actual bisect
if [ $hang -ne 0 ]; then
git bisect run python3 "$script_dir/bisect_hang.py" "$bisect_dir" "$options" $elapsed_time $hang || exit 1
else
git bisect run python3 "$script_dir/bisect_res.py" "$bisect_dir" "$options" "$expected" || exit 1
fi
# show the bisect log
git bisect log || exit 1
git bisect reset || exit 1
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