maven-dependencies-comparison

Maven dependencies comparison

A lot of components are used in WildFly and it makes sense to have versions of dependencies aligned in component projects. It's not easy and convenient to compare versions manually. This experiment is about helping with this challenge.

Bash way

Get the list of dependencies and make

mvn dependency:list -DoutputFile=$PWD/dep-list -DappendOutput=true
cat dep-list | sort | grep '\:.*\:' | cut -d: -f1-4 | sed "s/ //g" | uniq > dep-list-normalized

Pretty print the list based on first 2 tokens of groupId (split by .).

PREV_SHORT_GROUP=""
while read line; do
  GROUP=`echo "$line" | cut -d: -f1`
  SHORT_GROUP=`echo "$GROUP" | cut -d\. -f1-2`

  if [ "$SHORT_GROUP" != "$PREV_SHORT_GROUP" ]; then
    echo ""
  fi
  echo "$line"  ## debug line - echo "$line : $GROUP : $SHORT_GROUP"

  PREV_SHORT_GROUP=$SHORT_GROUP
done <dep-list-normalized > dep-list-pretty

Once you have dep-list-pretty files generated you can use any diff tool you prefer - e.g. meld dep-list-pretty ../Resteasy/dep-list-pretty or IDE diff tool.