feat: add support for Go, Ruby, and NuGet modules with integration testing configurations

Signed-off-by: d9pouces <github@19pouces.net>

tests/dockerfiles/repos/build_test_gem.sh

@@ -0,0 +1,32 @@
+#!/bin/sh
+# Build a minimal, hand-rolled RubyGems package and a full gem repository
+# index for it (legacy + compact index formats), for integration-testing
+# the `ruby` module of id-configurator. Uses RubyGems' own `gem build` and
+# `gem generate_index` (the same tools a real gem server host would use)
+# rather than hand-rolling the compact index's binary/marshal formats.
+set -eu
+
+PACKAGE=idconfiguratortestpkg
+VERSION=0.0.1
+MARKER="test-only gem served by the id-configurator integration tests"
+
+gem install rubygems-generate_index --no-document
+
+mkdir -p "/build/${PACKAGE}-${VERSION}"
+cd "/build/${PACKAGE}-${VERSION}"
+cat > "${PACKAGE}.gemspec" <<EOF
+Gem::Specification.new do |s|
+  s.name        = "${PACKAGE}"
+  s.version     = "${VERSION}"
+  s.summary     = "test-only gem"
+  s.authors     = ["InterDiode"]
+  s.license     = "MIT"
+  s.files       = ["marker.txt"]
+end
+EOF
+echo "${MARKER}" > marker.txt
+gem build "${PACKAGE}.gemspec"
+
+mkdir -p /srv/gems
+cp ./*.gem /srv/gems/
+gem generate_index -d /srv