some shell functions

functions.sh

# Compare svn versions and zip the changed files.
# usage: svnecf tarfile start_rev end_rev
# credit: http://code.davelens.be/blog/detail/svn-export-all-changed-files-between-two-revisions-in-a-tarball
function svnecf()
{
  tarfile=$1
  start_rev=$2
  end_rev=$3

  if [[ "$end_rev" == "" ]]; then
    end_rev='HEAD'
  fi  

  svn diff -r "$start_rev":"$end_rev" --summarize |
  awk '{if ($1 != "D") print $2}'|   
  xargs  -I "{}" tar -rvf "$tarfile" "{}"
}

# Start an HTTP server from a directory, optionally specifying the port
# credit: https://github.com/mathiasbynens/dotfiles
function server() {
  local port="${1:-8000}"
  sleep 1 && open "http://localhost:${port}/" &
  # Set the default Content-Type to `text/plain` instead of `application/octet-stream`
  # And serve everything as UTF-8 (although not technically correct, this doesn’t break anything for bin
  python -c $'import SimpleHTTPServer;\nmap = SimpleHTTPServer.SimpleHTTPRequestHandler.extensions_map;\
}