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Convert files to UNIX format using Maven

I have an application that is developed in a Windows environment. The application itself gets deployed to a Linux environment. Each tim开发者_运维技巧e I deploy this application I have to convert executable files to UNIX format using dos2unix. I originally thought this was caused by the Windows CP1252 encoding, so I updated Maven to encode the files to UTF-8. This didn't solve my issue and I quickly found out that this has to do with carriage returns and line feeds by searching this site. Is there a way to have Maven convert all of the files to UNIX format during the build process? I am using Maven 2.2.1 and Java 5.


The assembly plugin has a lineEnding option which can be used to control the line-ending of the files for a given fileSet. This parameter is precisely there to do what you want. Ultimately, you could build zip archives with with CRLF lines and tar.gz archives with LF lines.

E.g.

...
<fileSet>
    <directory>${basedir}/src/main/build/QA</directory>
    <outputDirectory>/bin</outputDirectory>
    <includes>
        <include>start.sh</include>
    </includes>
    <lineEnding>unix</lineEnding>
</fileSet>
...

Possible values at this time include:

  • "keep" - Preserve all line endings
  • "unix" - Use Unix-style line endings (i.e. "\n")
  • "lf" - Use a single line-feed line endings (i.e. "\n")
  • "dos" - Use DOS-/Windows-style line endings (i.e. "\r\n")
  • "windows" - Use DOS-/Windows-style line endings (i.e. "\r\n")
  • "crlf" - Use carriage-return, line-feed line endings (i.e. "\r\n")


You can use the Maven antrun plugin to call the fixcrlf ant task:

<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>ant-test</groupId>
    <artifactId>ant-test</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-antrun-plugin</artifactId>
                <executions>
                    <execution>
                        <id>ant-test</id>
                        <phase>package</phase>
                        <configuration>
                            <tasks>
                                <fixcrlf ... />
                            </tasks>
                        </configuration>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>
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