Is there a way to add a dependency to a Maven POM from the command line?

Question

Is there a command or Maven plugin I can use to add a dependency to a POM from the command line?

For example, I want to type something like:

mvn lazy:add-dependency -DgroupId=com.mycompany -DartifactId=derp -Dversion=1.0

and have it modify the dependencies section of the POM in the current directory:

<dependencies>
    ... other dependencies ...
    <dependency>
        <groupId>com.mycompany</groupId>
        <artifactId>derp</artifactId>
        <version>1.0</version>
    </dependency>
</dependencies>

An external command to add the above XML would also work, but I'd prefer one that doesn't require me to write an XSL stylesheet.

Answer 1

Not sure if you ever solved this, but I have done something similar in the past with xsltproc ( I Know you said not to use one, but I never found another way of doing it).

function merge_xml ()
{
TEMP_XML1="some-temp-file1.xml"
TEMP_XML2="some-temp-file2.xml"
cat > $TEMP_XML1
cp $1 $TEMP_XML2

echo "Merging XML stream from $1 into $2" >&2

xsltproc --stringparam with "$TEMP_XML1" merge.xslt "$TEMP_XML2" | tidy -xml -indent -quiet -wrap 500 -output $2
}

merge.xslt can be found here http://www2.informatik.hu-berlin.de/~obecker/XSLT/merge/merge.xslt

Then to call the Bash function:

merge_xml $PROJECT_ROOT/content/pom.xml $PROJECT_ROOT/content/pom.xml << EOF 
<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">
<dependencies>
    <dependency>
      <groupId>com.company</groupId>
      <artifactId>my-artifact</artifactId>
      <version>1.0-SNAPSHOT</version>
      <classifier>jar</classifier>
    </dependency>
</dependencies>
</project>
EOF