将Maven资源过滤绑定到特定阶段

时间:2019-12-04 10:08:09

标签: eclipse maven pom.xml m2eclipse

我正在Eclipse 2019-09上并尝试以下操作:

我创建了一个文件src/main/resources/build/build.properties来保存有关当前版本的一些信息:

build.version=${project.version}
build.number=${buildNumber}
build.date=${buildTimestamp}

在构建项目时,变量将被正确替换,并且目标文件夹内的文件将正确呈现。在Eclipse中更改代码(无Maven构建)时,buildNumber被其变量名替换。 我想这与m2e过于频繁地进行过滤有关(不仅是通过菜单单击 build 时)。 buildNumber仅在“真实”构建期间可用,因此在其他情况下不可用,因此不会被替换。 我可以告诉Maven仅在特定的构建阶段执行变量替换吗?

pom.xml的相关摘录:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>123</groupId>
    <artifactId>456</artifactId>
    <version>789</version>
    <properties>
        <maven.build.timestamp.format>dd.MM.yyyy HH:mm:ss</maven.build.timestamp.format>
        <buildTimestamp>${maven.build.timestamp}</buildTimestamp>
    </properties>
    <!-- Dummy for Build Number Plugin -->
    <scm>
        <connection>scm:svn:http://127.0.0.1/dummy</connection>
        <developerConnection>scm:svn:https://127.0.0.1/dummy</developerConnection>
        <tag>HEAD</tag>
        <url>http://127.0.0.1/dummy</url>
    </scm>
    <build>
        <finalName>${project.artifactId}-${project.version}.${buildNumber}</finalName>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
            </resource>
        </resources>
        <plugins>
            <!--  Maven Build Number Plugin -->
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>buildnumber-maven-plugin</artifactId>
                <version>1.4</version>
                <executions>
                    <execution>
                        <id>buildnumber</id>
                        <phase>clean</phase>
                        <goals>
                            <goal>create</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <format>{0,number}</format>
                    <items>
                        <item>buildNumber</item>
                    </items>
                    <doCheck>false</doCheck>
                    <doUpdate>false</doUpdate>
                    <revisionOnScmFailure>unknownbuild</revisionOnScmFailure>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

显示我的问题的工作示例:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.whatever</groupId>
    <artifactId>test</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <properties>
        <maven.compiler.source>12</maven.compiler.source>
        <maven.compiler.target>12</maven.compiler.target>
        <project.build.sourceEncoding>Cp1252</project.build.sourceEncoding>
        <maven-jar-plugin.version>3.5.0</maven-jar-plugin.version>
        <maven.build.timestamp.format>dd.MM.yyyy HH:mm:ss</maven.build.timestamp.format>
        <buildTimestamp>${maven.build.timestamp}</buildTimestamp>
    </properties>
    <!-- Dummy for Build Number Plugin -->
    <scm>
        <connection>scm:svn:http://127.0.0.1/dummy</connection>
        <developerConnection>scm:svn:https://127.0.0.1/dummy</developerConnection>
        <tag>HEAD</tag>
        <url>http://127.0.0.1/dummy</url>
    </scm>
    <build>
        <finalName>${project.artifactId}-${project.version}.${buildNumber}</finalName>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
            </resource>
        </resources>
        <plugins>
            <!-- Copy dependencies into target/lib -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <executions>
                    <execution>
                        <id>copy-dependencies</id>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-dependencies</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${project.build.directory}/lib</outputDirectory>
                            <overWriteReleases>false</overWriteReleases>
                            <overWriteSnapshots>false</overWriteSnapshots>
                            <overWriteIfNewer>true</overWriteIfNewer>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <!-- Create JAR -->
            <plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <configuration>
                    <archive>
                        <manifest>
                            <mainClass>org.whatever.Main</mainClass>
                        </manifest>
                    </archive>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                </configuration>
            </plugin>
            <!--  Maven Build Number Plugin -->
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>buildnumber-maven-plugin</artifactId>
                <version>1.4</version>
                <executions>
                    <execution>
                        <id>buildnumber</id>
                        <goals>
                            <goal>create</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <format>{0,number}</format>
                    <items>
                        <item>buildNumber</item>
                    </items>
                    <doCheck>false</doCheck>
                    <doUpdate>false</doUpdate>
                    <revisionOnScmFailure>unknownbuild</revisionOnScmFailure>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

仅使用sysout创建一个简单的类org.whatever.test.Main.java:

package org.whatever.test;

public class Main {
    public static void main(String... args) {
        System.out.println("Hey!");
    }
}

并在build.properties下创建一个src/main/resources

build.version=${project.version}
build.number=${buildNumber}
build.date=${buildTimestamp}

Building将内部版本号增加三倍。更改Main.java(导致重新编译)会使目标目录中build.properties的替换版本失去内部版本号。



编辑:修复了按三递增的问题。感谢khmarbaise。仍然有替换问题。 https://maven.apache.org/plugins/maven-resources-plugin/resources-mojo.html状态

  

默认情况下绑定到生命周期阶段:process-resources。

即将编译。 Eclipse可能会在每次代码更改(只是猜测)上执行compile并替换资源。在此阶段,没有buildNumber可用(我不想在每次代码更改时都增加此数字)。我找不到如何绑定到另一个阶段或采用更优雅的方式。

编辑:我考虑得越多,就越想保持这种方式。通过Maven构建会增加我的构建号。构建过程还会压缩我的类文件,库等。在目标目录内和zip文件中,现在有正确的内部版本号。更改代码会导致目标/类中的内部版本号重置为$ {buildNumber},这在技术上是正确的。我与更改代码之前所处的版本不相同,而是在不同版本之间。

0 个答案:

没有答案
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