svn-git.sh

#!/bin/sh
# by Mike McQuaid (https://github.com/mikemcquaid/scripts)

SVN_ALIAS=$(alias svn 2>/dev/null|sed -e 's/alias svn=//')
svn_root() {
  [ -d .svn ] || (echo "No .svn directory found" && return)

  OLDPWD=$PWD
  while [ -d ../.svn ]
  do
    cd ..
  done

  SVN_INFO_URL=$(svn info 2>/dev/null | grep URL:) || return
  SVN_URL=$(echo $SVN_INFO | sed -e 's/URL: //')
  SVN_BRANCH=$(echo $SVN_INFO | grep -oe '\(trunk\|branches/[^/]\+\|tags/[^/]\+\)')
  [ -n "$SVN_BRANCH" ] || return
  SVN_ROOT=${SVN_URL%$SVN_BRANCH}
  echo "$SVN_ROOT"
  cd $OLDPWD
}

# Makes changing branches in Subversion more like Git
svn_git_checkout() {
  if echo "$@" | grep "://"
  then
    svn "$@"
    return
  fi

  NEW_BRANCH="$1"
  [ -n "$NEW_BRANCH" ] || (echo "No branch specified" && return)
  [ -d .svn ] || (echo "No .svn directory found" && return)

  SVN_ROOT=$(svn_root)

  if [ $NEW_BRANCH != "trunk" ]
  then
    echo "Searching branches for $NEW_BRANCH"
    for BRANCH in $(svn ls ${SVN_ROOT}/branches)
    do
      [ "$NEW_BRANCH/" != $BRANCH ] && continue
      FOUND_BRANCH="branches/$BRANCH"
      break
    done

    if [ -z "$FOUND_BRANCH" ]
    then
      echo "Searching tags for $NEW_BRANCH"
      for TAG in $(svn ls ${SVN_ROOT}/tags)
      do
        [ "$NEW_BRANCH/" != $TAG ] && continue
        FOUND_BRANCH="tags/$TAG"
        break
      done
    fi

    if [ -z "$FOUND_BRANCH" ]
    then
      echo "Could not find a branch or tag named $NEW_BRANCH"
      cd $OLDPWD
      return
    else
      NEW_BRANCH="$FOUND_BRANCH"
    fi
  fi

  OLDPWD=$PWD
  while [ -d ../.svn ]
  do
    cd ..
  done

  echo svn switch "$SVN_ROOT$NEW_BRANCH"
  svn switch "$SVN_ROOT$NEW_BRANCH"
  cd $OLDPWD
}

case "$1" in
  co)
    svn_git_checkout "$@"
    ;;
  checkout)
    svn_git_checkout "$@"
    ;;
  log)
    svn "$@"|less -FX
    ;;
  branch)
    SVN_ROOT=$(svn_root)
    echo "Branches:"
    svn ls ${SVN_ROOT}/branches
    echo
    echo "Tags:"
    svn ls ${SVN_ROOT}/tags
    ;;
  diff)
    [ -n "$DIFF" ] && DIFF_ARG="--diff-cmd=$DIFF"
    svn $DIFF_ARG "$@"|less -FXR
    ;;
  *)
    svn "$@"
    ;;
esac

alias svn=$SVN_ALIAS