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From joshelser <...@git.apache.org>
Subject [GitHub] accumulo pull request #131: ACCUMULO-4356 Remove bundled jars from -bin.tar....
Date Fri, 22 Jul 2016 03:10:42 GMT
Github user joshelser commented on a diff in the pull request:

    https://github.com/apache/accumulo/pull/131#discussion_r71821510
  
    --- Diff: assemble/src/main/scripts/generate-download-script.sh ---
    @@ -0,0 +1,56 @@
    +#! /usr/bin/env bash
    +
    +# 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.
    +
    +# This script will generate a DEPENDENCIES listing of packaged dependencies
    +
    +in=target/dependencies.raw.txt
    +out=target/download-dependencies
    +
    +cat >"$out" <<'EOF'
    +#! /usr/bin/env bash
    +# This script downloads the following jars, identified by their maven
    +# coordinates, using the maven-dependency-plugin.
    +#
    +# DISCLAIMER: This is only one possible way to download a set of dependencies
    --- End diff --
    
    Oh, and as a concrete example which hopefully drives home my point. Let's take Guava.
    
    In Accumulo, we require a specific range of Guava versions, and, given their liberal deprecation+removal
policy, I would guess that over time, the number of ranges that will work for Accumulo will
grow smaller and smaller.
    
    Hypothetically, a user might require Guava 18.0 for their application but we might need
a Guava between 13.0 and 17.0. How does a user/packager find out that they can't actually
use Guava 18.0?


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