CODEWITHSUNDEEP
xmlmavencommand-line
matts
matts

Reputation: 6897

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

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.

Upvotes: 7

Views: 4092

Answers (3)

Pete
Pete

Reputation: 21

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

Upvotes: 1

Scott Izu
Scott Izu

Reputation: 2309

Following Andrew's comment:

Example using sed:

sed 's/<dependencies>/<dependencies>\r\n<!--ghost-->\r\n<dependency>\r\n<groupId>org.ghost4j<\/groupId>\r\n<artifactId>ghost4j<\/artifactId>\r\n<version>0.5.0<\/version>\r\n<\/dependency>\r\n<!--ghost-->/g' pom.xml > pom2.xml

Replaces the dependencies tag with the dependencies tag followed by the new dependency (inserts the new dependency first in the list.

Creates a new file pom2.xml with the new dependency (this can be changed to overwrite the original file using: pom.xml > pom.xml

Upvotes: 1

noahlz
noahlz

Reputation: 10311

I'm not aware of an existing Plugin that does this, but it could be fairly straightforward to implement your own Maven plugin leveraging Ant and XMLTask.

Upvotes: 0

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