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#!/bin/bash
#
# Copyright (c) 2014, 2015 Innoopract Informationssysteme GmbH and others.
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Eclipse Public License v1.0
# which accompanies this distribution, and is available at
# http://www.eclipse.org/legal/epl-v10.html
#
# Contributors:
# Innoopract Informationssysteme GmbH - initial API and implementation
# EclipseSource - ongoing development
###############################################################################
###############################################################################
# The purpose of this little shell script is to generate a settings.xml
# for Maven that contains a list of packages (as activated profiles) based
# on the last commit to Git. The idea is that this helps to reduce the
# number of CPU cycles that are required in a Gerrit verification build job
# by building only the relevant packages.
# (Relevant == the packages that are potentially affected by this change)
###############################################################################
WORKSPACE=${WORKSPACE:-"${PWD}"}
GIT_REPOSITORY=${GIT_REPOSITORY:-"org.eclipse.epp.packages"}
SETTINGS_FILE=${SETTINGS_FILE:-"${WORKSPACE}/settings.xml"}
IGNORED_PACKAGES=${IGNORED_PACKAGES:-""}
FULL_BUILD=${FULL_BUILD:-"false"}
echo "Creating ${SETTINGS_FILE}"
echo "Ignoring package(s): ${IGNORED_PACKAGES}"
### add initial content (proxy definition) from $HOME/.m2/settings.xml
echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" >$SETTINGS_FILE
echo "<settings xmlns=\"http://maven.apache.org/SETTINGS/1.0.0\"" >>$SETTINGS_FILE
echo " xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"" >>$SETTINGS_FILE
echo " xsi:schemaLocation=\"http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd\">" >>$SETTINGS_FILE
echo "" >>$SETTINGS_FILE
echo " <mirrors>" >>$SETTINGS_FILE
echo " <mirror>" >>$SETTINGS_FILE
echo " <id>eclipse.maven.central.mirror</id>" >>$SETTINGS_FILE
echo " <name>Eclipse Central Proxy</name>" >>$SETTINGS_FILE
echo " <url>https://repo.eclipse.org/content/repositories/maven_central/</url>" >>$SETTINGS_FILE
echo " <mirrorOf>central</mirrorOf>" >>$SETTINGS_FILE
echo " </mirror>" >>$SETTINGS_FILE
echo " </mirrors>" >>$SETTINGS_FILE
echo " <activeProfiles>" >>$SETTINGS_FILE
### use the OXYGEN commit to find out which package directories contain a change
PACKAGES="${IGNORED_PACKAGES}"
cd ${WORKSPACE}/${GIT_REPOSITORY}
for II in `git diff-tree --name-only --no-commit-id -r OXYGEN | cut -d "/" -f 2 | cut -d "." -f 5 | sort | uniq`; do
if [[ "common" =~ ${II} ]]
then
echo "${II} found; will trigger a full package build."
FULL_BUILD="true"
continue
fi
if [[ ${IGNORED_PACKAGES} =~ ${II} ]]
then
echo "${II} contains changes, but is ignored or a duplicate."
continue
fi
PACKAGE="epp.package.${II}"
echo "Adding package $PACKAGE"
echo " <activeProfile>${PACKAGE}</activeProfile>" >>$SETTINGS_FILE
PACKAGES="${PACKAGES} ${PACKAGE}"
done
cd ${WORKSPACE}
### if there are changes in other areas of the Git repo then build everything
cd ${WORKSPACE}/${GIT_REPOSITORY}
OTHERCHANGES="xxx`git diff-tree --name-only --no-commit-id -r OXYGEN | grep -v "^packages"`xxx"
if [ "${OTHERCHANGES}" != "xxxxxx" ] || [ "${FULL_BUILD}" == "true" ]
then
echo "Full build required. Adding all packages"
ALLPACKAGES=`ls packages | cut -d "." -f 5 | sort | uniq`
for II in ${ALLPACKAGES}; do
if [[ "common" =~ ${II} ]]
then
continue
fi
if [[ ${PACKAGES} =~ ${II} ]]
then
echo "${II} should be added for all packages, but it is ignored or a duplicate."
continue
else
PACKAGE="epp.package.${II}"
echo "Adding package $PACKAGE"
echo " <activeProfile>${PACKAGE}</activeProfile>" >>$SETTINGS_FILE
PACKAGES="${PACKAGES}"
fi
done
fi
cd ${WORKSPACE}
### close the settings.xml file
echo " </activeProfiles>" >>$SETTINGS_FILE
echo "" >>$SETTINGS_FILE
echo "</settings>" >>$SETTINGS_FILE
echo "Written new $SETTINGS_FILE"
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