Auto config GOPATH

go-auto-set-gopath.zsh

# auto config GOPATH.
# /home/robin/workspace/src/github.com/
export _OLDGOPATH=${GOPATH}
go-auto-set-gopath() {
  curdir=`pwd`
  gopath=""
  array=(${(s:/:)curdir})
  for ele in "${array[@]}" ; do
    if [ "${ele}" = "src" ] ; then
        break
    fi
    gopath="${gopath}/${ele}"
  done

  if [ "${curdir}" = "${gopath}" ] ; then
    gopath="${_OLDGOPATH}"
  fi

  export GOPATH="${gopath}"
  # echo "set GOPATH to $GOPATH"
}
add-zsh-hook chpwd go-auto-set-gopath
go-auto-set-gopath