drupaltools-module-rename

name	drupaltools-module-rename
description	Rename a Drupal module's machine name throughout its codebase, updating all file names, class names, service names, and references. Use this skill when the user wants to rename an existing module to a new machine name, change module identifiers, or refactor a module's namespace without creating a copy.

Drupal Module Rename

Rename an existing Drupal module's machine name throughout its entire codebase.

When to use this vs module-clone

Scenario	Skill
You want a new module based on an existing one (template/scaffold)	drupaltools-module-clone
You want to rename an existing module in-place	drupaltools-module-rename

Key difference: Clone creates a copy with a new identity. Rename transforms the existing module.

---

Step 1 — Identify source and target

• Locate the source module's .info.yml file to confirm the current $OLD_MACHINE_NAME
• Validate the new $NEW_MACHINE_NAME follows Drupal naming conventions (lowercase letters, underscores, no spaces)

Step 2 — File structure changes

Rename files and folders:

• Rename $OLD_MACHINE_NAME.info.yml → $NEW_MACHINE_NAME.info.yml
• Rename $OLD_MACHINE_NAME.module → $NEW_MACHINE_NAME.module
• Rename $OLD_MACHINE_NAME.install → $NEW_MACHINE_NAME.install (if exists)
• Rename $OLD_MACHINE_NAME.services.yml → $NEW_MACHINE_NAME.services.yml (if exists)
• Rename $OLD_MACHINE_NAME.links.menu.yml → $NEW_MACHINE_NAME.links.menu.yml (if exists)
• Rename $OLD_MACHINE_NAME.routing.yml → $NEW_MACHINE_NAME.routing.yml (if exists)
• Rename $OLD_MACHINE_NAME.permissions.yml → $NEW_MACHINE_NAME.permissions.yml (if exists)
• Rename any plugin folders using the old machine name

Step 3 — Content updates

Replace all occurrences inside files:

File and directory names

# Rename files (deepest first to avoid path conflicts)
find "$MODULE_DIR" -depth -name "*<OLD_MACHINE_NAME>*" | while read f; do
  mv "$f" "${f//<OLD_MACHINE_NAME>/<NEW_MACHINE_NAME>}"
done

File contents

Replace all three common casing forms:

Pattern	Replace with
old_machine_name (snake_case)	new_machine_name
OldMachineName (PascalCase)	NewMachineName
old machine name (human label)	new machine name

# snake_case
grep -rl "<OLD_MACHINE_NAME>" "$MODULE_DIR" | xargs sed -i \
  "s/<OLD_MACHINE_NAME>/<NEW_MACHINE_NAME>/g"

# PascalCase (capitalize first letter)
sed -i 's/OldMachineName/NewMachineName/g' "$MODULE_DIR"/*.php

# Human labels (capitalize words)
sed -i 's/old machine name/new machine name/g' "$MODULE_DIR"/*.md

Step 4 — Database considerations

Warn the user that renaming a module:

• Will cause config entity IDs to change (requires database updates)
• May break existing content referencing the old module name
• Requires drush updb or manual config re-export after renaming

Step 5 — Testing checklist

After renaming:

• Clear all caches (drush cr)
• Run drush updb to check for schema updates
• Verify module still enables without errors
• Check for any remaining references using grep
• Re-export configuration if needed