I've just installed Maven 3 - I'm new to Java and I want to learn how Maven works. For now, I know that I can add a dependency by editing POM file in the maven project, but I wonder if there is a 'clean' way to do it with command line. Running Windows 8.1, Java 8, Maven 3.
Using the POM directly is probably a better way, but yes you can do that:
mvn install:install-file -Dfile=<path-to-file> -DgroupId="group-id" \
-DartifactId="artifact-id" -Dversion="version" -Dpackaging="packaging"
https://maven.apache.org/guides/mini/guide-3rd-party-jars-local.html
I'm not very sure if there's a built-in maven feature or plugin to do so, but I don't think so. You could achieve it by a small script using sed or something similar. I've used the following in a bash script:
get_foo_dep() {
cat <<EOF
<dependency>
<groupId>com.example</groupId>
<artifactId>foo</artifactId>
<version>${DEP_VERSION}</version>
</dependency>
EOF
}
DEP_VERSION="1.0.0" # just example, you can set it from somewhere
POM_FILE="pom.xml" # just example, the path to pom
foo_dep=$(get_foo_dep)
foo_dep=${foo_dep//$'\n'/\\$'\n'} # escape \n with \\n for sed to work
sed -i "s|<dependencies>|<dependencies>\n${foo_dep}|" "$POM_FILE" # CARE!! it makes in-place substitution
You can also have a look at this other question, where awk is recommended:
Is it possible to use sed to replace dependencies's version in a pom file?