ruby: add auxiliar scripts in order to help tests

ruby_find_pkgsdeps: look for file dependencies (checks
require and Encoding references) and extrapolate it to pkgs
deps. Also checks whether a dep is redundant or missing in pkgs.
Must run inside an OpenWRT with all ruby* pkgs installed.

ruby_missingfiles: list files in staging/target and from files
comparing side by side its contents. It helps to easly visualize
which file is not packaged in an ipk.

Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>

lang/ruby/ruby_missingfiles

@@ -0,0 +1,20 @@
+#!/bin/bash
+#
+
+function list_staging_files {
+	cd staging_dir/target-*/; find \
+		\( \( -name "root-x86" -or -name "packages" -or -name "stamp" -or -name "pkginfo" \) -prune \) -or -true \
+		\( -path "*ruby*" -or -name "erb" -or -name "gem" -or -name "irb" -or -name "rake" -or -name "rdoc" -or -name "ri" -or -name "testrb" \) \
+		-print | sort
+}
+
+function list_ipkg_files {
+	for OPKG in bin/*/packages/packages/*ruby*; do
+        tar --to-stdout -xzf "$OPKG" ./data.tar.gz | tar tz | sed -e 's%/$%%'
+	done | sort -u
+}
+
+
+echo "          Staging                    Packages"
+diff -y <(list_staging_files) <(list_ipkg_files)
+