#!/bin/bash
set -euo pipefail
# this script creates a bare git repository on the git server
#
# USAGE:
# ssh git@<host> new-repo <name> [--description <desc>]
#
# EXAMPLES:
# ssh git@treybastian.com new-repo myrepo
# ssh git@treybastian.com new-repo myrepo.git
# ssh git@treybastian.com new-repo myrepo --description "my cool repo"

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

if [ "$#" -lt 1 ]; then
  echo "Error: expected at least 1 argument, got $#"
  usage
fi

PROJECT_NAME="$1"
DESCRIPTION=""
shift

while [ "$#" -gt 0 ]; do
  case "$1" in
    --description)
      [ "$#" -ge 2 ] || { echo "Error: --description requires a value"; usage; }
      DESCRIPTION="$2"
      shift 2
      ;;
    *)
      echo "Error: unknown flag '$1'"
      usage
      ;;
  esac
done

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

if [ -d "$PROJECT_NAME" ]; then
  echo "Error: '$PROJECT_NAME' already exists"
  exit 1
fi

git --bare init "$PROJECT_NAME"

if [ -n "$DESCRIPTION" ]; then
  echo "$DESCRIPTION" > "${PROJECT_NAME}/description"
fi

echo "repo created: $PROJECT_NAME"
echo "git url: ${USER}@${HOSTNAME}:${PROJECT_NAME}"

# vim: filetype=bash