#!/bin/sh
#
# git-arr post-receive hook
#
# This is a script intended to be used as a post-receive hook, which updates
# its git-arr view.
#
# You should place it /path/to/your/repository.git/hooks/.

# Config
# --------
#
# hooks.git-arr-config
#   The git-arr configuration file to use. Mandatory.
#   Example: /srv/git-arr/site.conf
#
# hooks.git-arr-output
#   Directory for the generated output. Mandatory.
#   Example: /srv/www/git/
#
# hooks.git-arr-path
#   The path to the git-arr executable. Optional, defaults to "git-arr".
#
# hooks.git-arr-repo-name
#   The git-arr repository name. Optional, defaults to the path name.

git_arr_config="$(git config --path hooks.git-arr-config)"
git_arr_output="$(git config --path hooks.git-arr-output)"

git_arr_path="$(git config --path hooks.git-arr-path 2> /dev/null)"
git_arr_repo_name="$(git config hooks.git-arr-repo-name 2> /dev/null)"

if [ -z "$git_arr_config" -o -z "$git_arr_output" ]; then
	echo "Error: missing config options."
	echo "Both hooks.git-arr-config and hooks.git-arr-output must be set."
	exit 1
fi

if [ -z "$git_arr_path" ]; then
	git_arr_path=git-arr
fi

if [ -z "$git_arr_repo_name" ]; then
	PARENT_DIR=$(cd $(dirname "$0")/..; echo "$PWD")
	git_arr_repo_name=$(basename "$PARENT_DIR")
fi

echo "Running git-arr"
$git_arr_path --config "$git_arr_config" generate \
	--output "$git_arr_output" \
	--only "$git_arr_repo_name" > /dev/null
RESULT=$?

if [ $RESULT -ne 0 ]; then
	echo "Error running git-arr"
	exit $RESULT
fi