How to Apply a Patch in Drupal - Step by Step Guide

Step 1: Download the Patch

Find the patch file from Drupal.org or other trusted sources and download it to your project root.

Step 2: Navigate to the Module or Theme Directory

Move into the directory where the patch needs to be applied, for example:

cd modules/contrib/module_name

Step 3: Apply the Patch

Run the following command to apply the patch:

patch -p1 < patch-file.patch

If you are in the root directory, use:

patch -p1 -d modules/contrib/module_name < patch-file.patch

Step 4: Verify the Patch

Check if the patch was applied successfully by running:

git apply --check patch-file.patch

Step 5: Clear the Cache

After applying the patch, clear the Drupal cache:

drush cache:rebuild

Step 6: Test the Changes

Test the functionality to ensure the patch works as expected.

Conclusion

You have successfully applied a patch in Drupal. If the patch causes issues, you can revert it using:

git reset --hard