Add script to get all Debian packages corresponding to a gazebodistro file

tools/gazebodistro_to_pkgs_for_ros.bash

@@ -0,0 +1,59 @@
+if [[ ${#} -ne 1 ]]; then
+    echo "Usage: ${0} <distro_yaml_file>"
+    exit -1
+fi
+
+GAZEBO_DISTRO=${1}
+
+remove_string_dups()
+{
+    local string=${1}
+
+    sed 's/ /\n/g' <<< $string | sort | uniq | tr '\n' ' '
+}
+
+echo
+echo "This tool reads a gazebodistro file and looks in the system for"
+echo "all available pkgs corresponding to that distro file"
+echo
+
+BRANCH_NAMES=$(grep version: ${GAZEBO_DISTRO} | awk '{ print $2 }')
+# Get packages from gazebodistro file. Some assumptions and ros- filter
+total_pkgs=
+for branch in ${BRANCH_NAMES}; do
+    pkg_name=${branch/ign-/ignition-}
+    pkg_name=${pkg_name/sdf/sdformat}
+    echo " 1. Getting packages using: ${pkg_name}"
+    # assume here than when foo1 fails search for foo
+    pkgs=$(apt-cache search ${pkg_name} | awk '{ print $1 }' | grep -v '^ros-') || pkgs=$(apt-cache search ${pkg_name/1/} | awk '{ print $1 }' | grep -v '^ros-')
+    total_pkgs="${total_pkgs} ${pkgs}"
+done
+
+echo
+
+# Get all packages listed as dependencies
+all_deps_pkgs=
+for pkg in $(echo ${total_pkgs} | sort | uniq); do
+    echo " 2. Get dependencies of: ${pkg}"
+    new_pkgs=$(apt-rdepends ${pkg} 2>/dev/null | grep Depends: | awk '{ print $2 }' | sort | uniq)
+    all_deps_pkgs="${all_deps_pkgs} ${new_pkgs}"
+done
+
+all_deps_pkgs=$(remove_string_dups "${all_deps_pkgs}")
+echo
+
+for new_pkg in ${all_deps_pkgs}; do
+    mad_output=$(apt-cache madison ${new_pkg})
+    # skip purely virtual
+    [[ ${mad_output} == "" ]] && continue
+    if [[ -z  $(grep 'packages.ros.org\|archive.ubuntu.com' <<< ${mad_output}) ]]; then
+	echo " 3. Found missing package ${new_pkg}"
+	osrf_pkgs="${osrf_pkgs} ${new_pkg}"
+    fi
+done
+
+osrf_pkgs=$(remove_string_dups "${osrf_pkgs}")
+echo
+
+echo "LIST OF PACKAGES:"
+echo "${osrf_pkgs}"