#!/bin/sh
#
# gitflow -- A collection of Git wrapper scripts to provide high-level
# repository operations for Vincent Driessen's branching model:
# 
# Original blog post presenting this model is found at:
#    http://nvie.com/archives/323
# 
# Feel free to contribute to this project at:
#    http://github.com/nvie/gitflow
#
# Copyright (c) 2010 by Vincent Driessen
#

# Get the git dir
GIT_DIR=$(git rev-parse --git-dir)

# Get all available branches
LOCAL_BRANCHES=$(cd "$GIT_DIR/refs/heads"; find * -type f)
REMOTE_BRANCHES=$(cd "$GIT_DIR/refs/remotes"; find * -type f)
ALL_BRANCHES="$LOCAL_BRANCHES\n$REMOTE_BRANCHES"

die() {
	echo "$@" >&2
	exit 1
}

gitflow_check_clean_working_tree() {
	# TODO: Implement this
	echo "TODO"
}

gitflow_require_local_branch() {
	echo "$LOCAL_BRANCHES" | grep "^$1\$" 2>/dev/null >/dev/null
	if [ $? -ne 0 ]; then
		die "Local branch '$1' does not exist and is required."
	fi
}

gitflow_require_remote_branch() {
	echo "$REMOTE_BRANCHES" | grep "^$1\$" 2>/dev/null >/dev/null
	if [ $? -ne 0 ]; then
		die "Remote branch '$1' does not exist and is required."
	fi
}

gitflow_require_branch() {
	echo "$ALL_BRANCHES" | grep "^$1\$" 2>/dev/null >/dev/null
	if [ $? -ne 0 ]; then
		die "Branch '$1' does not exist and is required."
	fi
}