record-react-vs-backbone.sh

#!/bin/bash

set -e

START_COMMIT=abcdef123
COMMITS=$(git log --format="%H %ad" --merges $START_COMMIT...)

while read -r LINE; do
    COMMIT=$(echo $LINE |cut -d ' ' -f 1)
    DATE=$(echo $LINE |cut -d ' ' -f 2-)

    `git checkout -q $COMMIT`

    BACKBONE_MENTIONS=$(git grep -ci 'backbone' |wc -l)
    REACT_MENTIONS=$(git grep -cE 'React|react' |wc -l)

    echo "$COMMIT,$DATE,$BACKBONE_MENTIONS,$REACT_MENTIONS"
done <<< "$COMMITS"

`git checkout -q master`