How do I strip subdirectories when using maven dependency plugin

Question

There is a jar file with following structure:

/--
  |-dir1
   |-file1
   |-file2
   |-file3
  |-dir2
  |-dir3

I set filter to take files only from dir1

<includes>dir1/*</includes>

it successfully takes files only from that directory, but in target directory copied files are placed in dir1, how can remove path from files that are copied and leave there only name. So file1 will be copied to target/file1 and not to target/dir1/file1

<build>
        <finalName>${project.build.finalName}</finalName>
        <plugins>
            <plugin>
                <inherited>true</inherited>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <executions>
                    <execution>
                        <id>unpack</id>
                        <phase>compile</phase>
                        <goals>
                            <goal>unpack</goal>
                        </goals>
                        <configuration>
                            <artifactItems>
                                <artifactItem>
                                    <groupId>groupId</groupId>
                                    <artifactId>artifactId</artifactId>
                                    <version>version</version>
                                    <type>jar</type>
                                    <overWrite>true</overWrite>
                                    <outputDirectory>target/natives</outputDirectory>
                                    <includes>dir1/*</includes>
                                </artifactItem>
                            </artifactItems>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

I can't understand this. Please post the pom config you are using. — bmargulies, Oct 23 '11 at 16:30
@bmargulies, I use `maven-dependency-plugin`. I updated question with except from pom file. — michael nesterenko, Oct 23 '11 at 20:42
Perhaps we can solve it in a different way. _Why_ do you want to do that? — orien, Nov 18 '11 at 20:49
@orien, I have a defined structure of a jar file which I have to conform to, that is why I want to change tree structure — michael nesterenko, Nov 19 '11 at 15:36

score 7 · Answer 1 · answered Jun 15 '20 at 14:50

Support for the fileMappers tag was added in version 3.1.2 of the maven-dependency-plugin.

See official documentation Rewriting target path and file name

For example you could extract a nested .so file and place at a top level

<artifactItem>
    <groupId>net.java.dev.jna</groupId>
    <artifactId>jna</artifactId>
    <version>4.2.2</version>
    <includes>com/sun/jna/linux-x86/*.so</includes>
    <fileMappers>
        <fileMapper implementation="org.codehaus.plexus.components.io.filemappers.FlattenFileMapper"/>
    </fileMappers>
    <outputDirectory>${project.build.directory}/extracted-libs/</outputDirectory>
</artifactItem>

score 0 · Answer 2 · answered Oct 24 '11 at 00:15

0

I don't know a way to do what you want. If I had your problem, I'd use the antrun plugin to rearrange, or I'd build a different artifact to pull from.

answered Oct 24 '11 at 00:15

bmargulies

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How do I strip subdirectories when using maven dependency plugin

2 Answers2