Add new scripts for in progress PR

source/scripts/conditional_flush_and_retry.sh.txt

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+#!/bin/bash
+
+function flush_dns_cache() {
+    case "$(uname -s)" in
+        Darwin)
+            # macOS
+            echo "Flushing DNS cache on macOS..."
+            sudo dscacheutil -flushcache
+            sudo killall -HUP mDNSResponder
+            ;;
+        Linux)
+            # Linux
+            echo "Flushing DNS cache on Linux..."
+            sudo systemd-resolve --flush-caches
+            ;;
+        CYGWIN*|MINGW32*|MSYS*|MINGW*)
+            # Windows
+            echo "Flushing DNS cache on Windows..."
+            ipconfig /flushdns
+            ;;
+        *)
+            echo "Unsupported OS. DNS cache flush not performed."
+            ;;
+    esac
+}
+
+function check_dns_cache {
+  GIT_HOST=$(terminus connection:info ${SITE_ID}.${ENV_ID} --field=git_host)
+  CACHED_IP=$(dig +short A $GIT_HOST)
+  UNCACHED_IP=$(dig +short $GIT_HOST @8.8.8.8)
+  echo "Checking for stale DNS cache for $GIT_HOST"
+  # Check if CACHED_IP does not equal UNCACHED_IP
+  if [ "$CACHED_IP" != "$UNCACHED_IP" ]; then
+    echo "IP address has changed, flushing DNS cache"
+    flush_dns_cache
+  else
+    echo "IP address has not changed, no need to flush DNS cache"
+  fi
+}
+
+function push_code {
+  # Example: if git clone fails, check for stale DNS cache and retry
+  MAX_RETRIES=5
+  RETRY_COUNT=0
+  while [ $RETRY_COUNT -lt $MAX_RETRIES ]; do
+    git clone --branch $ENV_ID --depth 2 ${{ env.UPSTREAM_GIT_URL }}
+    if [ $? -eq 0 ]; then
+      break
+    else
+      RETRY_COUNT=$((RETRY_COUNT+1))
+      check_dns_cache && echo "Retrying git clone command..."
+    fi
+  done
+  # Continue existing code
+
+  # Example: if git push fails, check for stale DNS cache and retry
+  MAX_RETRIES=5
+  RETRY_COUNT=0
+  while [ $RETRY_COUNT -lt $MAX_RETRIES ]; do
+    git push pantheon $BRANCH -vv
+    if [ $? -eq 0 ]; then
+      break
+    else
+      RETRY_COUNT=$((RETRY_COUNT+1))
+      check_dns_cache && echo "Retrying git push command..."
+    fi
+  done
+}
+
+push_code

source/scripts/flush_dns_and_clone.sh.txt

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+#!/bin/bash
+
+# Function to flush DNS cache based on the operating system
+function flush_dns_cache() {
+    case "$(uname -s)" in
+        Darwin)
+            # macOS
+            echo "Flushing DNS cache on macOS..."
+            sudo dscacheutil -flushcache
+            sudo killall -HUP mDNSResponder
+            ;;
+        Linux)
+            # Linux
+            echo "Flushing DNS cache on Linux..."
+            sudo systemd-resolve --flush-caches
+            ;;
+        CYGWIN*|MINGW32*|MSYS*|MINGW*)
+            # Windows
+            echo "Flushing DNS cache on Windows..."
+            ipconfig /flushdns
+            ;;
+        *)
+            echo "Unsupported OS. DNS cache flush not performed."
+            ;;
+    esac
+}
+
+# Flush the DNS cache
+flush_dns_cache
+
+# Standard Pantheon git commands, eg
+git clone ssh://codeserver.dev.[id]@codeserver.dev.[id].drush.in:2222/~/repository.git -b master mysite