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From felixcheung <...@git.apache.org>
Subject [GitHub] spark pull request #14258: [Spark-16579][SparkR] add install.spark function
Date Wed, 10 Aug 2016 00:12:13 GMT
Github user felixcheung commented on a diff in the pull request:

    https://github.com/apache/spark/pull/14258#discussion_r74167248
  
    --- Diff: R/pkg/R/install.R ---
    @@ -0,0 +1,230 @@
    +#
    +# Licensed to the Apache Software Foundation (ASF) under one or more
    +# contributor license agreements.  See the NOTICE file distributed with
    +# this work for additional information regarding copyright ownership.
    +# The ASF licenses this file to You under the Apache License, Version 2.0
    +# (the "License"); you may not use this file except in compliance with
    +# the License.  You may obtain a copy of the License at
    +#
    +#    http://www.apache.org/licenses/LICENSE-2.0
    +#
    +# Unless required by applicable law or agreed to in writing, software
    +# distributed under the License is distributed on an "AS IS" BASIS,
    +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    +# See the License for the specific language governing permissions and
    +# limitations under the License.
    +#
    +
    +# Functions to install Spark in case the user directly downloads SparkR
    +# from CRAN.
    +
    +#' Download and Install Apache Spark to a Local Directory
    +#' 
    +#' \code{install.spark} downloads and installs Spark to a local directory if
    +#' it is not found. The Spark version we use is the same as the SparkR version.
    +#' Users can specify a desired Hadoop version, the remote mirror site, and
    +#' the directory where the package is installed locally.
    +#'
    +#' The full url of remote file is inferred from \code{mirrorUrl} and \code{hadoopVersion}.
    +#' \code{mirrorUrl} specifies the remote path to a Spark folder. It is followed by a
subfolder
    +#' named after the Spark version (that corresponds to SparkR), and then the tar filename.
    +#' The filename is composed of four parts, i.e. [Spark version]-bin-[Hadoop version].tgz.
    +#' For example, the full path for a Spark 2.0.0 package for Hadoop 2.7 from
    +#' \code{http://apache.osuosl.org} has path:
    +#' \code{http://apache.osuosl.org/spark/spark-2.0.0/spark-2.0.0-bin-hadoop2.7.tgz}.
    +#' For \code{hadoopVersion = "without"}, [Hadoop version] in the filename is then
    +#' \code{without-hadoop}.
    +#'
    +#' @param hadoopVersion Version of Hadoop to install. Default is \code{"2.7"}. It can
take other
    +#'                      version number in the format of "x.y" where x and y are integer.
    +#'                      If \code{hadoopVersion = "without"}, "Hadoop free" build is installed.
    +#'                      See
    +#'                      \href{http://spark.apache.org/docs/latest/hadoop-provided.html}{
    +#'                      "Hadoop Free" Build} for more information.
    +#'                      Other patched version names can also be used, e.g. \code{"cdh4"}
    +#' @param mirrorUrl base URL of the repositories to use. The directory layout should
follow
    +#'                  \href{http://www.apache.org/dyn/closer.lua/spark/}{Apache mirrors}.
    +#' @param localDir a local directory where Spark is installed. The directory contains
    +#'                 version-specific folders of Spark packages. Default is path to
    +#'                 the cache directory:
    +#'                 \itemize{
    +#'                   \item Mac OS X: \file{~/Library/Caches/spark}
    +#'                   \item Unix: \env{$XDG_CACHE_HOME} if defined, otherwise \file{~/.cache/spark}
    +#'                   \item Windows: \file{\%LOCALAPPDATA\%\\spark\\spark\\Cache}. See
    +#'                         \href{https://www.microsoft.com/security/portal/mmpc/shared/variables.aspx}{
    +#'                         Windows Common Folder Variables} about \%LOCALAPPDATA\%
    +#'                 }
    +#' @param overwrite If \code{TRUE}, download and overwrite the existing tar file in localDir
    +#'                  and force re-install Spark (in case the local directory or file is
corrupted)
    +#' @return \code{install.spark} returns the local directory where Spark is found or installed
    +#' @rdname install.spark
    +#' @name install.spark
    --- End diff --
    
    ah you are right - I've missed the fact that's it's S3. I think as S3 is fine.


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