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Diff module - http://drupal.org/project/diff
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============================================
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Diff enhances usage of node revisions by adding the following features:
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- Diff between node revisions on the 'Revisions' tab to view all the changes
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between any two revisions of a node.
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- Highlight changes inline while viewing a node to quickly see color-coded
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additions, changes, and deletions.
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- Preview changes as a diff before updating a node.
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It is also an API to compare any entities although this functionality is not
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exposed by the core Diff module.
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REQUIREMENTS
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------------
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Drupal 7.x
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INSTALLATION
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------------
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1. Place the Diff module into your modules directory.
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This is normally the "sites/all/modules" directory.
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2. Go to admin/build/modules. Enable the module.
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The Diff modules is found in the Other section.
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Read more about installing modules at http://drupal.org/node/70151
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See the configuration section below.
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UPGRADING
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---------
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Any updates should be automatic. Just remember to run update.php!
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CONFIGURATION
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-------------
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Unlike the earlier version, the module now has a lot of configurable settings.
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Global settings can be found under Configuration > Content > Diff
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i.e. http://www.example.com/admin/config/content/diff
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Entity specific settings would be listed under the entities settings. This
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module only handles Node revisioning functionality, and these are detailed
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below.
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1) Node revisioning settings
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Diff needs to be configured to be used with specific node types on your site.
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To enable any of Diff's options on a content type's settings page.
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e.g. http://www.example.com/admin/structure/types/manage/page
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a) Diff options
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Under "Compare revisions", enable the settings that you want;
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i) "Show View changes button on node edit form" adds a new "Preview" like
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submit button to node editing pages. This shows a diff preview.
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ii) "Enable the Revisions page for this content type" adds the revisioning
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tab to content. This allows users to compare between various revisions
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that they have access to.
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iii) "Standard comparison preview" option allows you to control how the most
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current revision is show on the revision comparision page.
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b) Publishing options
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It is strongly advised that you also enable the automatic creation of
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revisions on any content types you want to use this with. If you do not do
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this, chances are there will be limited revisioning information available to
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compare.
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Under "Publishing options", enable "Create new revision".
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2) Field revisioning settings
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Global settings per field type can be found here:
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http://www.example.com/admin/config/content/diff/fields
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"Show field title" toggles field title visibility on the comparison page.
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"Markdown callback" is the callback used to render the field when viewing the
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page in the "Marked down" page view.
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"Line counter" is an optional. This shows the approximate line number where
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the change occurred. This is an approximate counter only.
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Other fields add additional settings here.
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3) Entity revisioning settings
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Global configurable settings limited to node entities.
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a) Show entity label header
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This provides a field like title for the entity label field.
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i.e. For nodes, this provides a header for the node's title.
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b) Treat diff pages as administrative
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By default, the revisioning pages are administrative, i.e. they will use the
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administration theme. You can block this by unchecking this option.
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4) Global settings
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A small number of new features have been added to the 7.x-3.x branch, these
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include the ability to change the leading and trailing lines in the comparison,
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a new CSS theme for the diff pages, new JScript options for the revisioning
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selection form and options to help prevent cross operating systems in relation
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to line endings.
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http://www.example.com/admin/config/content/diff
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Technical
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---------
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- Diff compares the raw data, not the filtered output, making it easier to see
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changes to HTML entities, etc.
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- The diff engine itself is a GPL'ed php diff engine from phpwiki.
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API
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---
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See diff.api.php
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Maintainers
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-----------
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- realityloop (Brian Gilbert)
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- Alan D. (Alan Davison)
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- dww (Derek Wright)
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- moshe (Moshe Weitzman)
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- rötzi (Julian)
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- yhahn (Young Hahn)
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