33 lines
1.8 KiB
Markdown
33 lines
1.8 KiB
Markdown
---
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nav: blog
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title: How to Create and Apply Patches
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slug: create-and-apply-patches
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tags:
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- drupal-planet
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- drupal-6
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- modules
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- patches
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---
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{% block excerpt %}
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Earlier this year, I posted a solution to [an issue](http://drupal.org/node/753898) 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`.
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{% endblock %}
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{% block content %}
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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.
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diff -rup modules/user/user.pages.inc modules/user/user.pages2.inc > /Users/oliver/Desktop/different_messages_for_blocked_users.patch
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This command compares the differences between the two files, and creates the specified patch file.
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To apply the patch to my Drupal installation, I go back to Terminal and run the following code:
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patch -p0 < /Users/oliver/Desktop/different_messages_for_blocked_users.patch
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If, for some reason, I need to reverse the patch, I can run this code:
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patch -p0 -R < /Users/oliver/Desktop/different_messages_for_blocked_users.patch
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And that's it!
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There is also a Git patch creation workflow, which is described at <http://groups.drupal.org/node/91424>. Thanks to [Randy Fay](http://randyfay.com) for making me aware of this, and suggesting a slight change to my original patch creation command.
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{% endblock %}
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