Re-add old blog posts from Astro

source/_posts/how-create-apply-patches.md

@@ -0,0 +1,50 @@
+---
+title: How to Create and Apply Patches
+date: 2010-10-10
+excerpt: How to create and apply patches, ready for the Drupal.org issue queues.
+tags:
+    - drupal-6
+    - drupal-planet
+    - modules
+    - patches
+---
+
+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`.
+
+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.
+
+```bash
+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:
+
+```bash
+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:
+
+```bash
+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](http://randyfay.com) for making me aware of this, and suggesting a
+slight change to my original patch creation command.