lucene/dev-tools/maven/README.maven

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Lucene/Solr Maven build instructions
====================================
Contents:
A. How to use nightly Jenkins-built Lucene/Solr Maven artifacts
B. How to generate Maven artifacts
C. How to deploy Maven artifacts to a repository
D. How to use Maven to build Lucene/Solr
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A. How to use nightly Jenkins-built Lucene/Solr Maven artifacts
The most recently produced nightly Jenkins-built Lucene and Solr Maven
snapshot artifacts are available in the Apache Snapshot repository here:
http://repository.apache.org/snapshots
An example POM snippet:
<project ...>
...
<repositories>
...
<repository>
<id>apache.snapshots</id>
<name>Apache Snapshot Repository</name>
<url>http://repository.apache.org/snapshots</url>
<releases>
<enabled>false</enabled>
</releases>
</repository>
B. How to generate Lucene/Solr Maven artifacts
Prerequisites: JDK 1.8+ and Ant 1.8.2+
Run 'ant generate-maven-artifacts' to create an internal Maven
repository, including POMs, binary .jars, source .jars, and javadoc
.jars.
You can run the above command in three possible places: the top-level
directory; under lucene/; or under solr/. From the top-level directory
or from lucene/, the internal repository will be located at dist/maven/.
From solr/, the internal repository will be located at package/maven/.
C. How to deploy Maven artifacts to a repository
Prerequisites: JDK 1.8+ and Ant 1.8.2+
You can deploy targets for all of Lucene/Solr, only Lucene, or only Solr,
as in B. above. To deploy to a Maven repository, the command is the same
as in B. above, with the addition of two system properties:
ant -Dm2.repository.id=my-repo-id \
-Dm2.repository.url=http://example.org/my/repo \
generate-maven-artifacts
The repository ID given in the above command corresponds to a <server>
entry in either your ~/.m2/settings.xml or ~/.ant/settings.xml. See
<http://maven.apache.org/settings.html#Servers> for more information.
(Note that as of version 2.1.3, Maven Ant Tasks cannot handle encrypted
passwords.)
D. How to use Maven to build Lucene/Solr
In summary, to enable Maven builds, perform the following:
ant get-maven-poms
cd maven-build
The details, followed by some example Maven commands:
1. Prerequisites: JDK 1.8+ and Maven 2.2.1 or 3.X
2. Make sure your sources are up to date.
3. Copy the Maven POM templates from under dev-tools/maven/ to the
maven-build/ directory using the following command from the top-level
directory:
ant get-maven-poms
Note that you will need to do this whenever changes to the POM
templates are committed. For this reason, it's a good idea run
"ant get-maven-poms" after you update from origin.
The above command copies all of the POM templates from dev-tools/maven/,
filling in the project version with the default "X.X-SNAPSHOT". If you
want the POMs and the Maven-built artifacts to have a version other than
the default, you can supply an alternate version on the command line
with the above command, e.g. "my-special-version":
ant -Dversion=my-special-version get-maven-poms
or to append "my-special-version" to the current base version, e.g. 5.0,
resulting in version "5.0-my-special-version":
ant -Ddev.version.suffix=my-special-version get-maven-poms
Note: if you change the version in the POMs, there is one test method
that will fail under maven-surefire-plugin:
o.a.l.index.TestCheckIndex#testLuceneConstantVersion(). It's safe to
@Ignore this test method, since it's just comparing the value of the
lucene.version system property (set in the maven-surefire-plugin
configuration in the lucene-core POM) against a hard-wired official
version (o.a.l.util.Constants.LUCENE_MAIN_VERSION).
4. To remove the maven-build/ directory and its contents, use the following
command from the top-level directory:
ant clean-maven-build
Some example Maven commands you can use after you perform the above
preparatory steps:
- Compile, package, and install all binary artifacts to your local
repository:
mvn install
After compiling and packaging, but before installing each module's
artifact, the above command will also run all the module's tests.
- Compile, package, and install all binary artifacts to your local
repository, without running any tests:
mvn -DskipTests install
- Compile, package, and install all binary and source artifacts to your
local repository, without running any tests:
mvn -DskipTests source:jar-no-fork install
- Run all tests:
mvn test
- Run all test methods defined in a test class:
mvn -Dtest=TestClassName test