#
# git-flow -- A collection of Git extensions to provide high-level
# repository operations for Vincent Driessen's branching model.
#
# A blog post presenting this model is found at:
#    http://blog.avirtualhome.com/development-workflow-using-git/
#
# Feel free to contribute to this project at:
#    http://github.com/petervanderdoes/gitflow
#
# Authors:
# Copyright 2012,2013 Peter van der Does. All rights reserved.
#
# Original Author:
# Copyright 2010 Vincent Driessen. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
#    list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

initialize() {
	require_git_repo
	require_gitflow_initialized
	gitflow_load_settings
	PREFIX=$(git config --get gitflow.prefix.feature)

}

usage() {
	OPTIONS_SPEC="\
git flow feature [list]
git flow feature start
git flow feature finish
git flow feature publish
git flow feature track
git flow feature diff
git flow feature rebase
git flow feature checkout
git flow feature pull
git flow feature delete

Manage your feature branches.

For more specific help type the command followed by --help
--
"
	flags_help
}

cmd_default() {
	cmd_list "$@"
}

cmd_list() {
	OPTIONS_SPEC="\
git flow feature [list] [-h] [-v]

Lists all the existing feature branches in the local repository.
--
h,help!     Show this help
v,verbose   Verbose (more) output
"
	local feature_branches current_branch width branch len
	local base develop_sha branch_sha

	# Define flags
	DEFINE_boolean 'verbose' false 'verbose (more) output' v

	# Parse argun=ments
	parse_args "$@"

	feature_branches=$(git_local_branches_prefixed "$PREFIX")
	if [ -z "$feature_branches" ]; then
		warn "No feature branches exist."
		warn ""
		warn "You can start a new feature branch:"
		warn ""
		warn "    git flow feature start <name> [<base>]"
		warn ""
		exit 0
	fi
	current_branch=$(git_current_branch)

	# Determine column width first
	width=0
	for branch in $feature_branches; do
		len=${#branch}
		width=$(max $width $len)
	done
	width=$(($width+3-${#PREFIX}))

	for branch in $feature_branches; do
		base=$(git merge-base "$branch" "$DEVELOP_BRANCH")
		develop_sha=$(git rev-parse "$DEVELOP_BRANCH")
		branch_sha=$(git rev-parse "$branch")
		if [ "$branch" = "$current_branch" ]; then
			printf "* "
		else
			printf "  "
		fi
		if flag verbose; then
			printf "%-${width}s" "${branch#$PREFIX}"
			if [ "$branch_sha" = "$develop_sha" ]; then
				printf "(no commits yet)"
			elif [ "$base" = "$branch_sha" ]; then
				printf "(is behind develop, may ff)"
			elif [ "$base" = "$develop_sha" ]; then
				printf "(based on latest develop)"
			else
				printf "(may be rebased)"
			fi
		else
			printf "%s" "${branch#$PREFIX}"
		fi
		echo
	done
}

cmd_help() {
	usage
	exit 0
}

name_or_current() {
	if [ -z "$NAME" ]; then
		use_current_feature_branch_name
	fi
}

# Parse arguments and set common variables
parse_args() {
	FLAGS "$@" || exit $?
	eval set -- "${FLAGS_ARGV}"

	# read arguments into global variables
	NAME=$1
	BRANCH=$PREFIX$NAME
}

parse_remote_name() {
	# Parse arguments
	FLAGS "$@" || exit $?
	eval set -- "${FLAGS_ARGV}"

	# read arguments into global variables
	REMOTE=$1
	NAME=$2
	BRANCH=$PREFIX$NAME
}

cmd_start() {
	OPTIONS_SPEC="\
git flow feature start [-h] [-F] <name> [<base>]

Start new feature <name>, optionally basing it on <base> instead of <develop>
--
h,help!          Show this help
showcommands!    Show git commands while executing them
F,[no]fetch      Fetch from origin before performing local operation
"
	local base

	# Define flags
	DEFINE_boolean 'fetch' false 'fetch from origin before performing local operation' F

	# Override defaults with values from config
	gitflow_override_flag_boolean   "feature.start.fetch"   "fetch"

	# Parse arguments
	parse_args "$@"
	eval set -- "${FLAGS_ARGV}"
	base=${2:-$DEVELOP_BRANCH}

	require_base_is_local_branch "$base"
	gitflow_require_name_arg
	gitflow_config_set_base_branch $base $BRANCH

	# Update the local repo with remote changes, if asked
	if flag fetch; then
		git_fetch_branch "$ORIGIN" "$base"
	fi

	# Sanity checks
	require_branch_absent "$BRANCH"

	# If the origin branch counterpart exists, assert that the local branch
	# isn't behind it (to avoid unnecessary rebasing)
	if git_remote_branch_exists "$ORIGIN/$base"; then
		require_branches_equal "$base" "$ORIGIN/$base"
	fi

	run_pre_hook "$NAME" "$ORIGIN" "$BRANCH" "$base"


	# create branch
	git_do checkout -b "$BRANCH" "$base" || die "Could not create feature branch '$BRANCH'."

	run_post_hook "$NAME" "$ORIGIN" "$BRANCH" "$base"

	echo
	echo "Summary of actions:"
	echo "- A new branch '$BRANCH' was created, based on '$base'"
	echo "- You are now on branch '$(git_current_branch)'"
	echo ""
	echo "Now, start committing on your feature. When done, use:"
	echo ""
	echo "     git flow feature finish $NAME"
	echo
}

cmd_finish() {
	OPTIONS_SPEC="\
git flow feature finish [-h] [-F] [-r] [-p] [-k] [-D] [-S] [--no-ff] <name|nameprefix>

Finish feature <name>
--
h,help!                Show this help
showcommands!          Show git commands while executing them
F,[no]fetch            Fetch from origin before performing finish
r,[no]rebase           Rebase before merging
p,[no]preserve-merges  Preserve merges while rebasing
k,[no]keep             Keep branch after performing finish
keepremote!        	   Keep the remote branch
keeplocal!             Keep the local branch
D,[no]force_delete     Force delete feature branch after finish
S,[no]squash           Squash feature during merge
no-ff!                 Never fast-forward during the merge
"
	local finish_base

	# Define flags
	DEFINE_boolean 'fetch' false "fetch from $ORIGIN before performing finish" F
	DEFINE_boolean 'rebase' false "rebase before merging" r
	DEFINE_boolean 'preserve-merges' false 'try to recreate merges while rebasing' p
	DEFINE_boolean 'keep' false "keep branch after performing finish" k
	DEFINE_boolean 'keepremote' false "keep the remote branch" R
	DEFINE_boolean 'keeplocal' false "keep the local branch" L
	DEFINE_boolean 'force_delete' false "force delete feature branch after finish" D
	DEFINE_boolean 'squash' false "squash feature during merge" S
	DEFINE_boolean 'squash-info' false "add branch info during squash" I
	DEFINE_boolean 'no-ff!' false "Don't fast-forward ever during merge " N

	# Override defaults with values from config
	gitflow_override_flag_boolean   "feature.finish.fetch"             "fetch"
	gitflow_override_flag_boolean   "feature.finish.rebase"            "rebase"
	gitflow_override_flag_boolean   "feature.finish.preserve-merges"   "preserve_merges"
	gitflow_override_flag_boolean   "feature.finish.keep"              "keep"
	gitflow_override_flag_boolean   "feature.finish.keepremote"        "keepremote"
	gitflow_override_flag_boolean   "feature.finish.keeplocal"         "keeplocal"
	gitflow_override_flag_boolean   "feature.finish.force-delete"      "force_delete"
	gitflow_override_flag_boolean   "feature.finish.squash"            "squash"
	gitflow_override_flag_boolean   "feature.finish.squash-info"       "squash_info"
	gitflow_override_flag_boolean   "feature.finish.no-ff"             "no_ff"

	# Parse arguments
	parse_args "$@"

	gitflow_expand_nameprefix_arg_or_current

	# Keeping both branches implies the --keep flag to be true.
	if flag keepremote && flag keeplocal; then
		FLAGS_keep=$FLAGS_TRUE
	fi

	# Sanity checks
	require_branch "$BRANCH"

	BASE_BRANCH=$(gitflow_config_get_base_branch $BRANCH)
	BASE_BRANCH=${BASE_BRANCH:-$DEVELOP_BRANCH}
	git_local_branch_exists "$BASE_BRANCH" || die "The base '$BASE_BRANCH' doesn't exists locally or is not a branch. Can't finish the feature branch '$BRANCH'."

	# Detect if we're restoring from a merge conflict
	if [ -f "$DOT_GIT_DIR/.gitflow/MERGE_BASE" ]; then
		#
		# TODO: detect that we're working on the correct branch here!
		# The user need not necessarily have given the same $NAME twice here
		# (although he/she should).
		#

		# TODO: git_is_clean_working_tree() should provide an alternative
		# exit code for "unmerged changes in working tree", which we should
		# actually be testing for here
		if git_is_clean_working_tree; then
			finish_base=$(cat "$DOT_GIT_DIR/.gitflow/MERGE_BASE")

			# Since the working tree is now clean, either the user did a
			# successful merge manually, or the merge was cancelled.
			# We detect this using git_is_branch_merged_into()
			if git_is_branch_merged_into "$BRANCH" "$finish_base"; then
				rm -f "$DOT_GIT_DIR/.gitflow/MERGE_BASE"
				helper_finish_cleanup
				exit 0
			else
				# If the user cancelled the merge and decided to wait until
				# later,that's fine. But we have to acknowledge this by
				# removing the MERGE_BASE file and continuing normal execution
				# of the finish
				rm -f "$DOT_GIT_DIR/.gitflow/MERGE_BASE"
			fi
		else
			echo
			echo "Merge conflicts not resolved yet, use:"
			echo "    git mergetool"
			echo "    git commit"
			echo
			echo "You can then complete the finish by running it again:"
			echo "    git flow feature finish $NAME"
			echo
			exit 1
		fi
	fi

	# Sanity checks
	require_clean_working_tree

	# We always fetch the Branch from Origin
	# This is done to avoid possible commits on the remote that are not
	# merged into the local branch
	if git_remote_branch_exists "$ORIGIN/$BRANCH"; then
		git_fetch_branch "$ORIGIN" "$BRANCH"
	fi

	# Update local branches with remote branches
	if flag fetch; then
		git_fetch_branch "$ORIGIN" "$BASE_BRANCH"
	fi

	# Check if the local branches have all the commits from the remote branches
	if git_remote_branch_exists "$ORIGIN/$BRANCH"; then
			require_branches_equal "$BRANCH" "$ORIGIN/$BRANCH"
	fi
	if git_remote_branch_exists "$ORIGIN/$BASE_BRANCH"; then
		require_branches_equal "$BASE_BRANCH" "$ORIGIN/$BASE_BRANCH"
	fi

	run_pre_hook "$NAME" "$ORIGIN" "$BRANCH"

	# If the user wants to rebase, do that first
	if flag rebase; then
        local _rebase_opts=""
        if flag preserve_merges; then
            _rebase_opts="$_rebase_opts -p"
        fi
        if flag showcommands; then
            _rebase_opts="$_rebase_opts --showcommands"
        fi
		if ! git flow-tower feature rebase $_rebase_opts "$NAME"; then
			warn "Finish was aborted due to conflicts during rebase."
			warn "Please finish the rebase manually now."
			warn "When finished, re-run:"
			warn "    git flow feature finish '$NAME' '$BASE_BRANCH'"
			exit 1
		fi
	fi

	# Merge into BASE
	git_do checkout "$BASE_BRANCH" || die "Could not check out branch '$BASE_BRANCH'."

	if noflag squash; then
		if flag no_ff; then
			git_do merge --no-ff "$BRANCH"
		else
			if [ "$(git rev-list -n2 "$BASE_BRANCH..$BRANCH" | wc -l)" -eq 1 ]; then
				git_do merge --ff "$BRANCH"
			else
				git_do merge --no-ff "$BRANCH"
			fi
		fi
	else
		git_do merge --squash "$BRANCH"
		flag squash_info && gitflow_create_squash_message "Merged feature branch '$BRANCH'" "$BASE_BRANCH" "$BRANCH" > "$DOT_GIT_DIR/SQUASH_MSG"
		git_do commit
	fi

	if [ $? -ne 0 ]; then
		# Oops.. we have a merge conflict!
		# Write the given $BASE_BRANCH to a temporary file as we will
		# be needing it later.
		mkdir -p "$DOT_GIT_DIR/.gitflow"
		echo "$BASE_BRANCH" > "$DOT_GIT_DIR/.gitflow/MERGE_BASE"
		echo
		echo "There were merge conflicts. To resolve the merge conflict manually, use:"
		echo "    git mergetool"
		echo "    git commit"
		echo
		echo "You can then complete the finish by running it again:"
		echo "    git flow feature finish $NAME"
		echo
		exit 1
	fi

	run_post_hook "$NAME" "$ORIGIN" "$BRANCH"

	# When no merge conflict is detected, just clean up the feature branch
	gitflow_config_remove_base_branch "$BRANCH"
	helper_finish_cleanup
}

helper_finish_cleanup() {
	local keepmsg remotebranchdeleted localbranchdeleted

	# Sanity checks
	require_branch "$BRANCH"
	require_clean_working_tree

	remotebranchdeleted=$FLAGS_FALSE
	localbranchdeleted=$FLAGS_FALSE

	if noflag keep; then

		# Always delete remote first
		if noflag keepremote;then
			if git_remote_branch_exists "$ORIGIN/$BRANCH"; then
				git_remote_branch_delete "$BRANCH" && remotebranchdeleted=$FLAGS_TRUE
			fi
		fi

		# Delete local after remote to avoid warnings
		if noflag keeplocal; then
			if [ "$BRANCH" = "$(git_current_branch)" ]; then
				git_do checkout "$BASE_BRANCH" || die "Could not check out branch '$BASE_BRANCH'."
			fi
			if flag force_delete; then
				git_do branch -D "$BRANCH" && localbranchdeleted=$FLAGS_TRUE
			else
				if noflag squash; then
					git_do branch -d "$BRANCH" && localbranchdeleted=$FLAGS_TRUE
				else
					git_do branch -D "$BRANCH" && localbranchdeleted=$FLAGS_TRUE
				fi
			fi
		fi

		# no more branches: we can safely remove config section
		if ! git_remote_branch_exists "$ORIGIN/$BRANCH" -a ! git_local_branch_exists "$BRANCH"; then
			gitflow_config_remove_base_section "$BRANCH"
		fi
	fi

	echo
	echo "Summary of actions:"
	echo "- The feature branch '$BRANCH' was merged into '$BASE_BRANCH'"
	#echo "- Merge conflicts were resolved"		# TODO: Add this line when it's supported
	if noflag keep; then
		if [ $localbranchdeleted -eq $FLAGS_TRUE ]; then
			keepmsg="has been locally deleted"
		else
			keepmsg="is still locally available"
		fi
		if [ $remotebranchdeleted -eq $FLAGS_TRUE ]; then
			keepmsg=$keepmsg"; it has been remotely deleted from '$ORIGIN'"
		elif git_remote_branch_exists "$ORIGIN/$BRANCH"; then
			keepmsg=$keepmsg"; it is still remotely available on '$ORIGIN'"
		fi
	else
		keepmsg="is still locally available"
		if git_remote_branch_exists "$ORIGIN/$BRANCH"; then
			keepmsg=$keepmsg"; it is still remotely available on '$ORIGIN'"
		fi
	fi
	echo "- Feature branch '$BRANCH' "$keepmsg
	echo "- You are now on branch '$(git_current_branch)'"
	echo
}

cmd_publish() {
	OPTIONS_SPEC="\
git flow feature publish [-h] [<name>]

Publish feature branch <name> on $ORIGIN.
When <name> is omitted the current branch is used, but only if it's a feature branch.
--
h,help!          Show this help
showcommands!    Show git commands while executing them
"
	# Parse arguments
	parse_args "$@"

	gitflow_expand_nameprefix_arg_or_current

	# Sanity checks
	require_clean_working_tree
	require_branch "$BRANCH"
	git_do fetch -q "$ORIGIN" || die "Could not fetch branch '$BRANCH' from remote '$ORIGIN'."
	require_branch_absent "$ORIGIN/$BRANCH"

	run_pre_hook "$NAME" "$ORIGIN" "$BRANCH"

	# Create remote branch
	git_do push "$ORIGIN" "$BRANCH:refs/heads/$BRANCH"
	git_do fetch -q "$ORIGIN" || die "Could not fetch branch '$BRANCH' from remote '$ORIGIN'."

	# Configure remote tracking
	git_do config "branch.$BRANCH.remote" "$ORIGIN"
	git_do config "branch.$BRANCH.merge" "refs/heads/$BRANCH"
	git_do checkout "$BRANCH" || die "Could not check out branch '$BRANCH'."

	run_post_hook "$NAME" "$ORIGIN" "$BRANCH"

	echo
	echo "Summary of actions:"
	echo "- A new remote branch '$BRANCH' was created"
	echo "- The local branch '$BRANCH' was configured to track the remote branch"
	echo "- You are now on branch '$(git_current_branch)'"
	echo
}

cmd_track() {
	OPTIONS_SPEC="\
git flow feature track [-h] <name>

Start tracking feature <name> that is shared on $ORIGIN
--
h,help!          Show this help
showcommands!    Show git commands while executing them
"
	# Parse arguments
	parse_args "$@"

	gitflow_require_name_arg

	# Sanity checks
	require_clean_working_tree
	require_local_branch_absent "$BRANCH"

	run_pre_hook "$NAME" "$ORIGIN" "$BRANCH"

	git_do fetch -q "$ORIGIN" || die "Could not fetch branch '$BRANCH' from remote '$ORIGIN'."
	git_remote_branch_exists "$ORIGIN/$BRANCH"

	# Create tracking branch
	git_do checkout -b "$BRANCH" "$ORIGIN/$BRANCH" || die "Could not create '$BRANCH'."

	run_post_hook "$NAME" "$ORIGIN" "$BRANCH"

	echo
	echo "Summary of actions:"
	echo "- A new remote tracking branch '$BRANCH' was created"
	echo "- You are now on branch '$(git_current_branch)'"
	echo
}

cmd_diff() {
	OPTIONS_SPEC="\
git flow feature diff [-h] [<name|nameprefix>]

Show all changes in <name> that are not in <develop>
--
h,help!          Show this help
showcommands!    Show git commands while executing them
"
	local base

	# Parse arguments
	parse_args "$@"

	if [ "$NAME" != "" ]; then
		gitflow_expand_nameprefix_arg 
		base=$(git merge-base "$DEVELOP_BRANCH" "$BRANCH")
		git_do diff "$base..$BRANCH"
	else
		if ! git_current_branch | grep -q "^$PREFIX"; then
			die "Not on a feature branch. Name one explicitly."
		fi

		base=$(git merge-base "$DEVELOP_BRANCH" HEAD)
		git_do diff "$base"
	fi
}

cmd_checkout() {
	OPTIONS_SPEC="\
git flow feature checkout [-h] [<name|nameprefix>]

Switch to feature branch <name>
--
h,help!          Show this help
showcommands!    Show git commands while executing them
"
	# Parse arguments
	parse_args "$@"

	if [ "$NAME" != "" ]; then
		gitflow_expand_nameprefix_arg 
		git_do checkout "$BRANCH"  || die "Could not check out branch '$BRANCH'."
	else
		die "Name a feature branch explicitly."
	fi
}

cmd_co() {
	# Alias for checkout
	cmd_checkout "$@"
}

cmd_rebase() {
	OPTIONS_SPEC="\
git flow feature rebase [-h] [-i] [-p] [<name|nameprefix>]

Rebase <name> on <base_branch>
--
h,help!                Show this help
showcommands!          Show git commands while executing them
i,[no]interactive      Do an interactive rebase
p,[no]preserve-merges  Preserve merges
"
	local opts

	# Define flags
	DEFINE_boolean 'interactive' false 'do an interactive rebase' i
	DEFINE_boolean 'preserve-merges' false 'try to recreate merges' p

	# Override defaults with values from config
	gitflow_override_flag_boolean   "feature.rebase.interactive"       "interactive"
	gitflow_override_flag_boolean   "feature.rebase.preserve-merges"   "preserve_merges"

	# Parse arguments
	parse_args "$@"

	gitflow_expand_nameprefix_arg_or_current 'feature'

	BASE_BRANCH=$(gitflow_config_get_base_branch $BRANCH)
	BASE_BRANCH=${BASE_BRANCH:-$DEVELOP_BRANCH}

	warn "Will try to rebase '$NAME' which is based on '$BASE_BRANCH'..."
	require_clean_working_tree
	require_branch "$BRANCH"

    git_local_branch_exists "$BASE_BRANCH" || die "The base '$BASE_BRANCH' doesn't exists locally or is not a branch. Can't finish the feature branch '$BRANCH'."

	git_do checkout -q "$BRANCH"  || die "Could not check out branch '$BRANCH'."
	if flag interactive; then
		opts="$opts -i"
	fi
	if flag preserve_merges; then
		opts="$opts -p"
	fi
	git_do rebase $opts "$BASE_BRANCH"
}

avoid_accidental_cross_branch_action() {
	local current_branch

	current_branch=$(git_current_branch)
	if [ "$BRANCH" != "$current_branch" ]; then
		warn "Trying to pull from '$BRANCH' while currently on branch '$current_branch'."
		warn "To avoid unintended merges, git-flow aborted."
		return 1
	fi
	return 0
}

cmd_pull() {
	OPTIONS_SPEC="\
git flow feature pull [-h] <remote> [<name>]

Pull feature <name> from <remote>
--
h,help!          Show this help
showcommands!    Show git commands while executing them
"
	local current_branch

	# Define flags
	DEFINE_boolean 'rebase' false "pull with rebase" r

	# Parse arguments
	parse_remote_name "$@"

	if [ -z "$REMOTE" ]; then
		die "Name a remote explicitly."
	fi
	name_or_current

	# To avoid accidentally merging different feature branches into each other,
	# die if the current feature branch differs from the requested $NAME
	# argument.
	current_branch=$(git_current_branch)
	if startswith "$current_branch" "$PREFIX"; then
		# We are on a local feature branch already, so $BRANCH must be equal to
		# the current branch
		avoid_accidental_cross_branch_action || die
	fi

	require_clean_working_tree

	run_pre_hook "$NAME" "$REMOTE" "$BRANCH"

	if git_local_branch_exists "$BRANCH"; then
		# Again, avoid accidental merges
		avoid_accidental_cross_branch_action || die

		# We already have a local branch called like this, so simply pull the
		# remote changes in
		if flag rebase; then
			if ! git_do pull --rebase -q "$REMOTE" "$BRANCH"; then
				warn "Pull was aborted. There might be conflicts during rebase or '$REMOTE' might be inaccessible."
				exit 1
			fi
		else
			git_do pull -q "$REMOTE" "$BRANCH" || die "Failed to pull from remote '$REMOTE'."
		fi

		echo "Pulled $REMOTE's changes into $BRANCH."
	else
		# Setup the local branch clone for the first time
		git_do fetch -q "$REMOTE" "$BRANCH" ||  die "Could not fetch branch '$BRANCH' from remote '$REMOTE'."     # Stores in FETCH_HEAD
		git_do branch --no-track "$BRANCH" FETCH_HEAD || die "Branch failed."
		git_do checkout -q "$BRANCH" || die "Could not check out branch '$BRANCH'."
		echo "Created local branch $BRANCH based on $REMOTE's $BRANCH."
	fi

	run_post_hook "$NAME" "$REMOTE" "$BRANCH"
}

cmd_delete() {
	OPTIONS_SPEC="\
git flow feature delete [-h] [-f] [-r] <name>

Delete a given feature branch
--
h,help!          Show this help
showcommands!    Show git commands while executing them
f,[no]force      Force deletion
r,[no]remote     Delete remote branch
"
	local current_branch

	# Define flags
	DEFINE_boolean 'force' false "force deletion" f
	DEFINE_boolean 'remote' false "delete remote branch" r

	# Override defaults with values from config
	gitflow_override_flag_boolean   "feature.delete.force"    "force"
	gitflow_override_flag_boolean   "feature.delete.remote"   "remote"

	# Parse arguments
	parse_args "$@"

	gitflow_expand_nameprefix_arg 

	# Sanity checks
	require_branch "$BRANCH"

	run_pre_hook "$NAME" "$ORIGIN" "$BRANCH"

	current_branch=$(git_current_branch)
	# We can't delete a branch we are on, switch to the develop branch.
	if [ "$BRANCH" = "$current_branch" ]; then
		require_clean_working_tree
		git_do checkout "$DEVELOP_BRANCH" || die "Could not check out branch '$DEVELOP_BRANCH'."
	fi

	if git_is_branch_merged_into "$BRANCH" "$DEVELOP_BRANCH"; then
		git_do branch -d "$BRANCH" || die "Could not delete the $BRANCH."
		if flag remote; then
			git_do push "$ORIGIN" :"$BRANCH" || die "Could not delete the remote $BRANCH in $ORIGIN."
		fi
	else
		if flag force; then
			git_do branch -D "$BRANCH" || die "Could not delete the $BRANCH."
			if flag remote; then
				git_do push "$ORIGIN" :"$BRANCH" || die "Could not delete the remote $BRANCH in $ORIGIN."
			fi
		else
			die "Feature branch '$BRANCH' has been not been merged yet. Use -f to force the deletion."
		fi
	fi

	gitflow_config_remove_base_section "$BRANCH"
	run_post_hook "$NAME" "$ORIGIN" "$BRANCH"

	echo
	echo "Summary of actions:"
	echo "- Feature branch '$BRANCH' has been deleted."
	flag remote && echo "- Feature branch '$BRANCH' in '$ORIGIN' has been deleted."
	echo "- You are now on branch '$(git_current_branch)'"
	echo
}
