cd-hdfs

#!/bin/bash
# Auto HDFS mounting | Spencer Tipping
# Licensed under the terms of the MIT source code license

if which hadoop-fuse-dfs > /dev/null; then
  cd_on 'h?dfs:[-/][-/][^:/]+:[0-9]+' cd_hdfs_mount cd_hdfs_umount
else
  echo 'cd-hdfs: no hadoop-fuse-dfs binary found in $PATH'
fi

function cd_hdfs_mount {
  local target=$1
  local mountpoint=$2

  if [[ "$target" =~ h?dfs:[-/][-/]([^:/]+):([0-9]+)(.*) ]]; then
    local namenode=${BASH_REMATCH[1]}
    local port=${BASH_REMATCH[2]}
    local after_cd=${BASH_REMATCH[3]}

    cd_mount "hadoop-fuse-dfs -oprivate" "dfs://$namenode:$port" "$mountpoint"
    cd_goto "${after_cd#/}"
  else
    echo "called cd_hdfs_mount on a non-matching target: $target"
    echo "(probably a cd-hdfs bug)"
  fi
}

function cd_hdfs_umount {
  cd_umount "fusermount -u" "$@"
}