#!/bin/bash

NUM_COMMITS=${FAST8_NUM_COMMITS:-1}

if [[ $NUM_COMMITS = "smart" ]]; then
    # Run on all commits not submitted yet
    # (sort of -- only checks vs. "master" since this is easy)
    NUM_COMMITS=$(git cherry master | wc -l)
fi

echo "Checking last $NUM_COMMITS commits."

cd $(dirname "$0")/..
CHANGED=$(git diff --name-only HEAD~${NUM_COMMITS} | tr '\n' ' ')

# Skip files that don't exist
# (have been git rm'd)
CHECK=""
for FILE in $CHANGED; do
    if [ -f "$FILE" ]; then
        CHECK="$CHECK $FILE"
    fi
done

diff -u --from-file /dev/null $CHECK | flake8 --diff