#!/bin/bash
set -euo pipefail
# this script sets the description of an existing bare git repository
# if public.conf exists the description is also set on the remote repository
#
# USAGE:
# ssh git@<host> set-description <name> <desc>
#
# EXAMPLES:
# ssh git@treybastian.com set-description myrepo "my cool repo"
# ssh git@treybastian.com set-description myrepo.git "my cool repo"

usage() {
  echo "Usage: set-description <name> <desc>"
  echo ""
  echo "Examples:"
  echo "  set-description myrepo \"my cool repo\""
  echo "  set-description myrepo.git \"my cool repo\""
  exit 1
}

if [ "$#" -ne 2 ]; then
  echo "Error: expected 2 arguments, got $#"
  usage
fi

PROJECT_NAME="$1"
DESCRIPTION="$2"

if [[ "$PROJECT_NAME" != *.git ]]; then
  PROJECT_NAME="${PROJECT_NAME}.git"
fi

if [ ! -d "$PROJECT_NAME" ]; then
  echo "Error: '$PROJECT_NAME' does not exist"
  exit 1
fi

echo "$DESCRIPTION" > "${PROJECT_NAME}/description"
echo "description updated: $PROJECT_NAME"

PUBLIC_FILE="${PROJECT_NAME}/public.conf"
if [ -f "$PUBLIC_FILE" ]; then
  REPO_URL=$(cat "$PUBLIC_FILE" | tr -d '\n' | xargs)
  REMOTE_HOST="${REPO_URL%%:*}"
  REMOTE_PATH="${REPO_URL##*:}"
  ssh "$REMOTE_HOST" set-description "$REMOTE_PATH" "$(printf '%q' "$DESCRIPTION")"
  echo "description updated on remote: $REPO_URL"
fi

# vim: filetype=bash