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| Cookbook - How To Add Build Time To A JAR Manifest |
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| Vincent Siveton |
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| 2008-01-01 |
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| ~~ 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. |
| |
| ~~ NOTE: For help with the syntax of this file, see: |
| ~~ http://maven.apache.org/doxia/references/apt-format.html |
| |
| Cookbook: How To Add Build Time To A JAR Manifest? |
| |
| * Summary |
| |
| This recipe describes how to add build time to a JAR manifest by calling {{{http://ant.apache.org}Apache Ant}} tasks. |
| |
| * Prerequisite Plugins |
| |
| Here is the list of the plugins used: |
| |
| *-----------------------------------------------------------+--------------+ |
| || <<Plugin>> || <<Version>> |
| *-----------------------------------------------------------+--------------+ |
| | {{{../../plugins/maven-antrun-plugin/} <<<antrun>>>}} | 1.1 |
| *-----------------------------------------------------------+--------------+ |
| | {{{../../plugins/maven-jar-plugin/} <<<jar>>>}} | 2.2 |
| *-----------------------------------------------------------+--------------+ |
| |
| * Sample Generated Manifest |
| |
| +-----+ |
| Manifest-Version: 1.0 |
| Archiver-Version: Plexus Archiver |
| Created-By: Apache Maven |
| Built-By: vsiveton |
| Build-Jdk: 1.5.0_12 |
| Build-Time: 2008-01-18 06:53:13 |
| +-----+ |
| |
| * Recipe |
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| ** Configuring MANIFEST.MF |
| |
| To generate and add build time into a Jar Manifest, we are using <<<MANIFEST.MF>>>, located in the <<<src/main/resources/META-INF>>> directory, |
| which contains a built time value to be interpolated, i.e. |
| |
| +-----+ |
| Build-Time: ${build.time} |
| +-----+ |
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| ** Configuring The POM |
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| The value $\{build.time\} from the <<<MANIFEST.MF>>> will be filtering by Maven due to the \<filtering\> element. |
| The value is taken from the file <<<$\{basedir\}/target/filter.properties>>>, listed by the \<filter\> element, i.e. |
| |
| %{snippet|id=pom|url=https://svn.apache.org/repos/asf/maven/sandbox/trunk/site/cookbook/generate-build-time/pom.xml} |
| |
| ** Configuring Maven Antrun Plugin |
| |
| The <<<filter.properties>>> file will be generated by the Antrun plugin. We use two core Ant Tasks, |
| {{{http://ant.apache.org/manual/CoreTasks/tstamp.html}\<tstamp\>}} and |
| {{{http://ant.apache.org/manual/CoreTasks/echo.html}\<echo\>}}. |
| |
| %{snippet|id=antrun|url=https://svn.apache.org/repos/asf/maven/sandbox/trunk/site/cookbook/generate-build-time/pom.xml} |
| |
| ** Configuring Maven Jar Plugin |
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| The last configuration is to set the <<<defaultManifestFile>>> to <<<true>>> to enable it. |
| |
| %{snippet|id=jar|url=https://svn.apache.org/repos/asf/maven/sandbox/trunk/site/cookbook/generate-build-time/pom.xml} |
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| ** Running Maven |
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| Just call Maven to generate the package: |
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| +-----+ |
| mvn package |
| +-----+ |
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| * Other Tips |
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| You could tweak the Jar Plugin configuration into the War Plugin. |
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| * Resources |
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| * Source code: {{{https://svn.apache.org/repos/asf/maven/sandbox/trunk/site/cookbook/generate-build-time}https://svn.apache.org/repos/asf/maven/sandbox/trunk/site/cookbook/generate-build-time}} |
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| * {{{../../plugins/maven-antrun-plugin/} Maven Antrun Plugin}} |
| |
| * {{{../../plugins/maven-jar-plugin/} Maven Jar Plugin}} |
| |
| [] |