#
# Copyright:: Copyright (c) 2020 GitLab Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

require 'digest'

name 'gitlab-redis-cli'

license 'Apache-2.0'
license_file File.expand_path('LICENSE', Omnibus::Config.project_root)

skip_transitive_dependency_licensing true

# This 'software' is self-contained in this file. Use the file contents
# to generate a version string.
default_version Digest::MD5.file(__FILE__).hexdigest

build do
  mkdir "#{install_dir}/bin/"

  block do
    File.open("#{install_dir}/bin/gitlab-redis-cli", 'w') do |file|
      file.print <<-EOH
#!/bin/sh

error_echo()
{
  echo "$1" 2>& 1
}

set_tls_params()
{
  REDIS_PARAMS="${REDIS_PARAMS} -p ${redis_tls_port} --tls"
  if [ "${redis_tls_auth_clients}" = "yes" ]; then
    REDIS_PARAMS="${REDIS_PARAMS} --cacertdir ${redis_tls_cacert_dir} \
      --cacert ${redis_tls_cacert_file} \
      --cert ${redis_tls_cert_file} \
      --key ${redis_tls_key_file}"
  fi
}

gitlab_redis_cli_rc='/opt/gitlab/etc/gitlab-redis-cli-rc'

if ! [ -f ${gitlab_redis_cli_rc} ] || ! [ -r ${gitlab_redis_cli_rc} ] ; then
  error_echo "$0 error: could not load ${gitlab_redis_cli_rc}"
  error_echo "Either you are not allowed to read the file, or it does not exist yet."
  error_echo "You can generate it with:   sudo gitlab-ctl reconfigure"
  exit 1
fi

. "${gitlab_redis_cli_rc}"


if [ -e "${redis_socket}" ]; then
  REDIS_PARAMS="-s ${redis_socket}"
else
  REDIS_PARAMS="-h ${redis_host}"
  if ! [ "${redis_port}" = "0" ]; then
    REDIS_PARAMS="${REDIS_PARAMS} -p ${redis_port}"
  elif ! [ "${redis_tls_port}" = "0" ]; then
    set_tls_params
  fi
fi

REDISCLI_AUTH="$(awk '/^requirepass /{
  pwd = $0 ;
  gsub(/^requirepass /,"",pwd);
  gsub(/^"|"$/, "", pwd);
  print pwd }' ${redis_dir}/redis.conf)"


if [ -n "${REDISCLI_AUTH}" ]; then
  export REDISCLI_AUTH
fi

exec /opt/gitlab/embedded/bin/redis-cli $REDIS_PARAMS "$@"
      EOH
    end
  end

  command "chmod 755 #{install_dir}/bin/gitlab-redis-cli"
end