Some bash functions leveraging git to speed up workflows.

gcg.git-checkout-grep.sh

function gcg() { # git checkout grep
	local branches flag git_options pattern OPTIND OPTARG
	git_options=()
	while getopts 'a' flag; do
		case $flag in
			a) git_options+=('-a');;
		esac
	done
	shift $((OPTIND - 1))
	branches=($(git branch ${git_options[@]} | perl -pe 's#^[\*\s]*(remotes/[^/]+/)?##' | grep "$*" | sort | uniq))
	if [[ -z $branches ]]; then
		pattern="$(echo -n "$*" | perl -pe 's/\s+//g' | perl -pe 's/(.)/.*\1/g')"
		echo "No literal match found. Checking on exploded pattern: $pattern."
		branches=($(git branch ${git_options[@]} | perl -pe 's#^[\*\s]*(remotes/[^/]+/)?##' | grep "$pattern" | sort | uniq))
	fi
	if [[ ${#branches[@]} -eq 1 ]]; then
		git checkout ${branches[0]}
	elif [[ ${#branches[@]} -gt 1 ]]; then
		echo "Pattern \"$*\" matched multiple branches:"
		for b in ${branches[@]}; do
			echo $b
		done
	else
		echo "No branch found by pattern \"$*\"."
	fi
}

git-todo.sh

# list all TODO-like notes in diff to parent branch
function git-todo() {
	local diff_reference remote remote_head_branch
	diff_reference=$1
	if [[ -z $diff_reference ]]; then
		remote=origin
		if [[ -z $(git remote | grep "\<$remote\>") ]]; then
			remote=$(git branch -vv | grep '^\*' | perl -pe 's;^.* \[([^/]+).*;\1;')
			if [[ $remote =~ ^\* ]]; then # no upstream branch found
				remote=""
			fi
		fi
		if [[ -n $remote ]]; then
			remote_head_branch=develop
			if [[ -z $(git branch | grep "\<$remote_head_branch\>") ]]; then
				remote_head_branch=$(git remote show $remote | grep 'HEAD branch' | perl -pe 's/^\s*HEAD branch:\s*//')
			fi
			if [[ -n $remote_head_branch ]]; then
				diff_reference=$remote/$remote_head_branch
			fi
		fi
	fi
	if [[ -n $diff_reference ]]; then
		git diff -U0 $diff_reference | grep '^+++\|^+.*\(FIXME\|XXX\|TODO\)' | perl -pe 's/^\++( b\/)?//'| grep -B 1 --color=always 'FIXME\|XXX\|TODO' | less -RS
	else
		git grep --color=always -n '\(FIXME\|XXX\|TODO\)' | less -RS
	fi
}