Improve network check for rubygems.org accessibility with retries and conditional gem installation

Author: sireeshajonnalagadda

test/ruby-rails-postgres/test.sh

@@ -16,14 +16,22 @@ check "rails" rails --version
 check "rails installation path" gem which rails
 check "user has write permission to rvm gems" [ -w /usr/local/rvm/gems ]
 check "user has write permission to rvm gems default" [ -w /usr/local/rvm/gems/default ]
-# Check if we can reach rubygems.org before proceeding.
-# This uses curl to silently (-s) make a request to https://rubygems.org
-# Redirects output to /dev/null because we only care if the request succeeds, not the result itself.
-if ! curl -s https://rubygems.org > /dev/null; then
-  echo "Network access to rubygems.org is unavailable. Please check network or proxy settings."
-  exit 1
+
+# This section verifies connectivity to rubygems.org and attempts to install a gem if reachable.
+can_reach_rubygems=false
+for i in 1 2 3 4 5; do
+  if curl -fsSL --connect-timeout 10 --max-time 20 https://rubygems.org/ >/dev/null; then
+    can_reach_rubygems=true
+    break
+  fi
+  sleep $((i * 2))
+done
+
+if [ "${can_reach_rubygems}" = "true" ]; then
+  check "user can install gems" gem install --no-document github-markup
+else
+  echo "WARN: Could not reach rubygems.org after retries; skipping gem install check."
 fi
-check "user can install gems" gem install github-markup
 
 # Report result
 reportResults