scripts/jars-to-module-info-java.sh

#!/bin/bash -e

# Extracts the Java package names of all classes in the .jar files and writes a module-info.java
# file to stdout that exports all of those packages.

if [ -z "$1" ]; then
  echo "usage: $0 <module name> <jar1> [<jar2> ...]" >&2
  exit 1
fi

module_name=$1
shift

echo "module ${module_name} {"
for j in "$@"; do zipinfo -1 $j ; done \
  | grep -E '/[^/]*\.class$' \
  | sed 's|\(.*\)/[^/]*\.class$|    exports \1;|g' \
  | sed 's|/|.|g' \
  | sort -u
echo "}"