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Validate a Maven Core Pull Request
#!/bin/sh
#
# PR validator: This script will checkout Maven, apply a PR, build the Maven distribution and
# run the Maven integration tests against the just-built distribution. If you
# successfully get to the end of this script then your PR is ready to be reviewed.
# Assumptions:
# 1) You have a functioning version of Maven installed (script tested with 3.2.1)
# 2) You have a decent connection. This script checks out everything from scratch and downloads
# everything into a clean local repository. Not terribly efficient but makes sure there is no
# interference from previous Maven operations.
#
# This really serves as a set of instructions to test your changes. Once you see what's required you
# can setup things as you wish, but this will get you started. I have maven and maven-integration-testing
# in sibling directories and iterate through a process of building Maven, installing the distribution and
# running the integration tests. This really just shows you where all the bits are.
#
# To use use this save it to a file called maven-pr-validator.sh and run it using the PR# like the following:
#
# ./maven-pr-validator 16
#
pr=$1
repository=https://github.com/apache/maven
[ -z ${pr} ] && echo "You need to provide a PR." && exit
patchUrl=${repository}/pull/${pr}.patch
workDirectory=`pwd`/z-maven-with-pr-${pr}
localRepository=${workDirectory}/local-repository
MAVEN_OPTS="-Xms1024m -Xmx1024m"
mvn="mvn -Dmaven.repo.local=${localRepository}"
mkdir ${workDirectory}
(
cd ${workDirectory}
curl -s -O ${patchUrl}
[ $? -ne 0 ] && echo "Retrieving patch file from Github failed." && exit
echo "Testing patch..."
git clone https://github.com/apache/maven.git
[ $? -ne 0 ] && echo "Cloning Maven failed." && exit
git clone https://github.com/apache/maven-integration-testing.git
[ $? -ne 0 ] && echo "Cloning Maven ITs failed." && exit
(
cd maven
# We execute this twice to make sure no download spew ends up in mavenVersion.txt.
# The -q mode of Maven keeps everything from being emitted, including useful output...
mavenVersion=`${mvn} help:evaluate -Dexpression=project.version | grep -v "^\["`
mavenVersion=`${mvn} help:evaluate -Dexpression=project.version | grep -v "^\["`
echo ${mavenVersion} > ${workDirectory}/mavenVersion.txt
git am --signoff < ../${pr}.patch
[ $? -ne 0 ] && echo "Applying ${pr}.patch failed." && exit
${mvn} clean package
[ $? -ne 0 ] && echo "Maven clean package failed." && exit
cd apache-maven/target
tar xvzf apache-maven-${mavenVersion}-bin.tar.gz
)
(
mavenVersion=`cat ${workDirectory}/mavenVersion.txt`
echo ${mavenVersion}
distro=${workDirectory}/maven/apache-maven/target/apache-maven-${mavenVersion}
M2_HOME=${distro}
cd maven-integration-testing
${mvn} clean install -Prun-its,embedded -DmavenHome=${distro}
)
)

barthel commented May 20, 2016

Use curl -L ... to follow HTTP redirects.

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