# !/bin/bash

startCommit=$2
initialCommit=`git rev-parse HEAD`  # commit of the repository before we start the work
file='cloc-stats.csv'

# use sed to remove duplicate lines with commit ID, git-rev-list not fully accepting my format, arrrgh

if [[ $1 = "--help" || $1 = "-h" ]]; then
	echo "Generate 'cloc per commit' stats from a GIT repository by following the parent links from the given commit."
	echo ""
	echo "Usage: cloc-history [commit-id]"
	echo ""
	exit
fi

if [[ -z $1 ]]; then
	startCommit='HEAD'
fi

history=`git rev-list --reverse --author="Igor Hlina" --date=short --pretty="format:%h %cd" HEAD | sed '/commit .*/d' | awk '{if(d!=$2){d=$2; print $1}}'`

echo "date                                 files         blank            comment      code" > $file

for commitId in $history; do
	git checkout -q $commitId
	commitDate=`git log -n1 --date=short --pretty='format:%cd' | cut -c 1-${COLUMNS+10}`
	commitStats=`cloc --force-lang="CoffeeScript",coffee --quiet * | awk '/SUM/'| sed "s/SUM:/$commitDate/"`
	echo "$commitStats"
	echo "$commitStats" >> $file
done;

git checkout -q $initialCommit