#!/bin/sh

####################################################################
#                                                                  #
#  sync-svn-repos-now: quickly mirror an SVN repository locally.   #
#                                                                  #
#  Usage: sync-svn-repos-now SOURCE_SVN_URL [LOCAL_MIRROR]         #
#                                                                  #
#  If the LOCAL_MIRROR parameter is omitted, a random name         #
#  starting with "svn-repos-local-mirror-" will be chosen.         #
#                                                                  #
#  (Written by Karl Fogel in 2021, but this is so simple that      #
#  I'm not even bothering to put a free software license on it.    #
#  If it's useful to you, please use, improve, etc.  You know      #
#  the drill.)                                                     #
#                                                                  #
####################################################################

SOURCE_REPOS="${1}"
LOCAL_REPOS="${2}"

if [ -z "${SOURCE_REPOS}" ]; then
  echo "ERROR: first argument must be source repository URL" >&2
  exit 1
fi

if [ -z "${LOCAL_REPOS}" ]; then
  LOCAL_REPOS=svn-repos-local-mirror-$$
  echo "Using ${LOCAL_REPOS} as local mirror repository" >&2
fi

svnadmin create ${LOCAL_REPOS}

HOOK_FILE=${LOCAL_REPOS}/hooks/pre-revprop-change
echo '#!/bin/sh' > ${HOOK_FILE}
echo '' >> ${HOOK_FILE}
echo 'exit 0' >> ${HOOK_FILE}
chmod a+x ${HOOK_FILE}

svnsync init file://`pwd`/${LOCAL_REPOS} ${SOURCE_REPOS}

svnsync sync file://`pwd`/${LOCAL_REPOS}