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| title | nav | use | slug | tags | |||||
|---|---|---|---|---|---|---|---|---|---|
| How to Create and Apply Patches | blog |
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create-and-apply-patches |
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Earlier this year, I posted a solution to an issue on the Drupal.org issue queue. Originally, I just posted the code back onto the issue, but have now created a patch that can easily be applied to any Drupal 6 installation. Here is a run-through of the process of creating and applying a patch. In this case, I made changes to the user_pass_validate() function that's found within modules/user/user.pages.inc.
To begin with, a download a fresh copy of Drupal 6.19 and created a copy of the original user.pages.inc file. Within the duplicate file, I made the same changes to the function that I did in earlier code, and saved the changes. Now, within my Terminal, I can navigate to Drupal's root directory and create the patch.
diff -rup modules/user/user.pages.inc modules/user/user.pages2.inc > /Users/oliver/Desktop/different_messages_for_blocked_users.patch
This command compares the differences between the two files, and creates the specified patch file.
To apply the patch to my Drupal installation, I go back to Terminal and run the following code:
patch -p0 < /Users/oliver/Desktop/different_messages_for_blocked_users.patch
If, for some reason, I need to reverse the patch, I can run this code:
patch -p0 -R < /Users/oliver/Desktop/different_messages_for_blocked_users.patch
And that's it!
There is also a Git patch creation workflow, which is described at http://groups.drupal.org/node/91424. Thanks to Randy Fay for making me aware of this, and suggesting a slight change to my original patch creation command.