#!/usr/bin/env sh

set -eu

if [ $# -lt 1 ]; then
  echo "Usage: set-category <name> [category]" 1>&2
  exit 1
fi

repo_name="$1";
[ -z "$repo_name" ] && echo "Error: empty repo name" 1>&2 && exit 1
(echo "$repo_name" | grep -q "^[A-Za-z0-9_-]\+$" 2>/dev/null) || (echo "Error: invalid repo name" 1>&2 && exit 1)

category="${2:-""}";
repo_dir="/git/${repo_name}.git"

if ! [ -d "$repo_dir" ]; then
  echo "Error: $repo_name doesn't exist" 1>&2
  exit 1;
fi

if [ -z "$category" ]; then
  git -C "$repo_dir" config unset gitweb.category
else
  git -C "$repo_dir" config set gitweb.category "$category"
fi

echo "Done"