scripts/build_each_commit.sh

#!/bin/bash

if [ $# -ne 1 ]
then
	echo "Usage: $0 <commits range>"
	exit 1
fi

if [ ! -d .git ]
then
	echo "Run on linux git tree"
	exit 1
fi

current_branch=$(git branch | grep -e '^* ' | cut -c 3-)
current_hashid=$(git log --oneline HEAD^.. | awk '{print $1}')
git stash

bindir=$(dirname "$0")
range=$1
commits=()
while IFS= read -r line
do
	commits+=( "$line" )
done < <(git log --oneline --reverse "$range")

nr_pass=0
nr_fails=0
results=()
max_reply=5
ODIR=$HOME/build_each_commit_outdir
for ((i = 0; i < ${#commits[@]}; i++))
do
	commit=${commits[$i]}
	hashid=$(echo $commit | awk '{print $1}')
	if ! git checkout "$hashid"
	then
		echo "Couldn't checkout $commit"
		exit 1
	fi

	result="FAIL"
	for ((j = 0; j < $max_reply; j++))
	do
		if "$bindir/build_damon_kernel.sh" $ODIR
		then
			result="PASS"
			break
		fi
	done

	if [ "$result" == "PASS" ]
	then
		nr_pass=$((nr_pass + 1))
	else
		nr_fails=$((nr_fails + 1))
	fi
	results+=("[$result] $commit")
done

echo "return to previous state: $current_hashid ($current_branch)"
if [[ "$current_branch" == "(HEAD detached at "* ]]
then
	git checkout "$current_hashid"
else
	git checkout "$current_branch"
fi
git stash pop

echo
echo "Results"
echo "======="
echo
for ((i = 0; i < ${#results[@]}; i++))
do
	echo "${results[$i]}"
done

echo
echo "total: $nr_pass PASS, $nr_fails FAIL"