= Code Review in Trac core =

== Changeset commenting ==
* #2035 requests ''Changeset commenting'' which would allow a rudimentary form of code review.
* Status: There has been no development on this specifically. Fundamental generalizations of the Trac core code may be required for an acceptable implementation in core Trac.

= Trac Code Review Plugins =

== Overview ==

|| ||= Status =||= Last Update =||= Compatibility =||
||=[#ExoWebCodeReviewPlugin] =||Unmaintained?||  2010  ||Incompatible with Trac >= 0.11 ||
||=[#PeerReviewPlugin] =||Unmaintained?||  2010  ||Branches 2.1 and 2.2 are ports to Trac 0.11||
||=[#CodeReviewPlugin] =||Unmaintained||  2009  ||Trac 0.11||
||=[#GvnTrac] =||Unmaintained?||  2009  ||Trac 0.11?||
||=[https://github.com/Automattic/trac-code-comments-plugin Code Comments Plugin] =||Maintained||  2012  ||>= Trac 0.12||

== [th:ExoWebCodeReviewPlugin] ==
* Workflow:
 * Allows creating reviews per changeset
 * Reviews can be assigned to multiple reviewers
 * Review status can be one of
   * ''No need to review''
   * ''Awaiting review''
   * ''Undergoing review''
   * ''Completely reviewed''
 * Each reviewer gets one comment text field
* Features:
 * A new main navigation tab to create and view reviews
 * Permissions support
 * Timeline integration
 * Email notification support
* Implementation details:
 * Uses a custom DB table for reviews and comments, and an second custom DB table to cache the path prefix of reviewed changesets
 * Still uses ClearSilver templates

== [th:PeerReviewPlugin] ==
* Workflow:
 * Allows creating reviews by selecting (line ranges in) files
 * Reviews can be assigned to multiple reviewers
 * Reviewers can vote for or against acceptance
 * Reviewers can comment on specific lines of code
* Features:
 * A new main navigation tab to create and view reviews
 * Permissions support
 * Timeline integration
* Implementation details:
 * Uses four custom DB table for reviews, assigned reviewers, selected files and comments
 * Templates were converted to Genshi in the 2.2 branch

== [th:CodeReviewPlugin] ==
* Workflow:
 * Simply allows commenting on a changeset
 * Changesets can be marked as accepted or rejected
* Features:
 * Simple permissions support
* Implementation details:
 * Uses a Genshi template stream filter to modify Trac's changeset page
 * Uses a custom DB table for changeset comments
   * (A simple hack is used to set it up lazily. There is no proper {{{IEnvironmentSetupContributor}}} implementation.)

== [http://projects.matt-good.net/trac/gvntrac GvnTrac] ==
* Workflow:
 * Uses Gvn changebranches for reviews.
  * (Gvn is a special Subversion client adding support for special code review branches, restricting this to Subversion repositories.)

= Non-Trac Code Review Solutions =

* [http://www.reviewboard.org/ Review Board]
* [http://code.google.com/p/rietveld/ Rietveld] / [http://codereview.appspot.com/ codereview.appspot.com]
* [http://codestriker.sourceforge.net/ Codestriker]