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<!DOCTYPE html> <html lang="en-US"> <head>   <title> TracDev – The Trac Project </title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" />  <link rel="search" href="/search" /> <link rel="help" href="/wiki/TracGuide" /> <link rel="alternate" href="/wiki/TracDev?format=txt" title="Plain Text" type="text/x-trac-wiki" /> <link rel="start" href="/wiki" /> <link rel="stylesheet" href="/chrome/common/css/trac.css" type="text/css" /> <link rel="stylesheet" href="/chrome/common/css/wiki.css" type="text/css" /> <link rel="stylesheet" href="/chrome/wikiextras/css/phrases.css" type="text/css" /> <link rel="stylesheet" href="/chrome/wikiextras/css/boxes.css" type="text/css" /> <link rel="stylesheet" href="/wikiextras/dynamicboxes.css" type="text/css" /> <link rel="stylesheet" href="/chrome/vote/css/tracvote.css" type="text/css" /> <link rel="icon" href="/favicon.ico" type="image/x-icon" /> <noscript> <style> .trac-noscript { display: none !important } </style> </noscript> <link type="application/opensearchdescription+xml" rel="search" href="/search/opensearch" title="Search The Trac Project"/> <script src="/chrome/common/js/jquery.js"></script> <script src="/chrome/common/js/babel.js"></script> <script src="/chrome/common/js/trac.js"></script> <script src="/chrome/common/js/search.js"></script> <script src="/chrome/common/js/folding.js"></script> <script src="/chrome/common/js/wiki.js"></script> <script> jQuery(function($) { $(".trac-autofocus").focus(); 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background: #ffd; margin-left: 2em; padding: 1em; border: outset #eec 2px; width: 28em"><p> <strong> Release Notes: <a href="/wiki/TracDev/ReleaseNotes/0.10">0.10</a>, <a href="/wiki/TracDev/ReleaseNotes/0.11">0.11</a>, <a href="/wiki/TracDev/ReleaseNotes/0.12">0.12</a>, <a href="/wiki/TracDev/ReleaseNotes/0.13">0.13</a>, <a href="/wiki/TracDev/ReleaseNotes/1.0">1.0</a>, <a href="/wiki/TracDev/ReleaseNotes/1.1">1.1</a>, <a href="/wiki/TracDev/ReleaseNotes/1.2">1.2</a>, <a href="/wiki/TracDev/ReleaseNotes/1.3">1.3</a>, <a href="/wiki/TracDev/ReleaseNotes/1.4">1.4</a>, <a href="/wiki/TracDev/ReleaseNotes/1.6">1.6</a>, <a href="/wiki/TracDev/ReleaseNotes/1.8">1.8</a> </strong> </p> <p> <strong> API Changes: <a href="/wiki/TracDev/ApiChanges/0.10">0.10</a>, <a href="/wiki/TracDev/ApiChanges/0.11">0.11</a>, <a href="/wiki/TracDev/ApiChanges/0.12">0.12</a>, <a href="/wiki/TracDev/ApiChanges/0.13">0.13</a>, <a href="/wiki/TracDev/ApiChanges/1.0">1.0</a>, <a href="/wiki/TracDev/ApiChanges/1.1">1.1</a>, <a href="/wiki/TracDev/ApiChanges/1.1.1">1.1.1</a>, <a href="/wiki/TracDev/ApiChanges/1.1.2">1.1.2</a>, <a href="/wiki/TracDev/ApiChanges/1.1.3">1.1.3</a>, <a href="/wiki/TracDev/ApiChanges/1.1.4">1.1.4</a>, <a href="/wiki/TracDev/ApiChanges/1.1.5">1.1.5</a>, <a href="/wiki/TracDev/ApiChanges/1.2">1.2</a>, <a href="/wiki/TracDev/ApiChanges/1.3">1.3</a>, <a href="/wiki/TracDev/ApiChanges/1.4">1.4</a>, <a href="/wiki/TracDev/ApiChanges/1.6">1.6</a> </strong> </p> <p> <strong> API Doc: <a class="ext-link" href="http://www.edgewall.org/docs/tags-trac-0.11.7/epydoc/"><span class="icon"></span>0.11</a>, <a class="ext-link" href="http://www.edgewall.org/docs/branches-0.12-stable/epydoc/"><span class="icon"></span>0.12</a>, <a class="ext-link" href="http://www.edgewall.org/docs/branches-1.0-stable/html/"><span class="icon"></span>1.0</a>, <a class="ext-link" href="http://www.edgewall.org/docs/branches-1.2-stable/html/"><span class="icon"></span>1.2</a>, <a class="ext-link" href="http://www.edgewall.org/docs/branches-1.4-stable/html/"><span class="icon"></span>1.4</a>, <a class="ext-link" href="http://www.edgewall.org/docs/trac-trunk/html/"><span class="icon"></span>1.5</a> <sup><a class="wiki" href="/wiki/TracDev#see-ApiDocs">(*)</a></sup> </strong> </p> <p> <strong> Build status:</strong> see <a class="wiki" href="/wiki/TracDev/AutomaticBuilds">AutomaticBuilds</a> </p> </div><p> These pages provide information about the development of Trac and its <a class="ext-link" href="https://trac-hacks.org/intertrac/HackIndex" title="HackIndex in Trac-Hacks Community Site"><span class="icon"></span>extensions</a>. It is written for skilled <a class="ext-link" href="https://www.python.org/"><span class="icon"></span>Python</a> developers who have experience using Trac. </p> <p> Development is largely coordinated online. </p> <p> Source code is managed in repositories and for Trac this is a combination of the main trunk in Subversion and mirror in <a class="wiki" href="/wiki/GitHub">GitHub</a>. See <a class="wiki" href="/wiki/TracRepositories">TracRepositories</a>, <a class="wiki" href="/wiki/TracSubversion">TracSubversion</a>, <a class="wiki" href="/wiki/TracGit">TracGit</a> and <a class="wiki" href="/wiki/TracMercurial">TracMercurial</a> for more information. </p> <p> We also keep track of what has been deprecated or removed between releases, see our <a class="wiki" href="/wiki/TracDev/ReleaseNotes">Release Notes</a> and the summary of <a class="wiki" href="/wiki/TracDev/ApiChanges">API Changes</a>. API Changes are summarised using the <em>API change</em> field attached to every ticket; this is a feature implemented since 1.0dev. </p> <h2 class="section" id="Howtogetstarted">How to get started?</h2> <p> Start by setting up a <a class="wiki" href="/wiki/TracDev/DevelopmentEnvironmentSetup">development environment</a> and become familiar with <a class="wiki" href="/wiki/TracInstall">installing Trac</a> and creating new <a class="wiki" href="/wiki/TracEnvironment">TracEnvironment</a>s. </p> <p> Then, you should get familiar with Trac's <a class="wiki" href="/wiki/TracDev/ComponentArchitecture">ComponentArchitecture</a>, <a class="wiki" href="/wiki/TracDev/PluginDevelopment">PluginDevelopment</a> and <a class="wiki" href="/wiki/TracDev/DatabaseApi">DatabaseApi</a>. The <a class="wiki" href="/wiki/TracTroubleshooting">TracTroubleshooting</a> page contains some debugging tips which are also quite useful during development. </p> <p> When you're ready to contribute changes, note that we're picky about our <a class="wiki" href="/wiki/TracDev/CodingStyle">CodingStyle</a> when <a class="wiki" href="/wiki/TracDev/SubmittingPatches">SubmittingPatches</a>. For changes to be accepted, the modified Trac source should still pass the <a class="wiki" href="/wiki/TracDev/UnitTests">UnitTests</a> and the <a class="wiki" href="/wiki/TracDev/FunctionalTests">FunctionalTests</a>. Ideally, also contribute new tests. </p> <p> Discussions about Trac Development happen on the <a class="ext-link" href="http://groups.google.com/group/trac-dev/topics"><span class="icon"></span>Trac-dev mailing list</a>. New development ideas are usually best discussed first on that list, it's a quick and easy way to get feedback on any given topic or question. As usual, search the archive first, to avoid rehashing old discussions. For longer term developments, or for documentation purposes, use the wiki. </p> <p> To refer to a mail from Trac-dev in this wiki, use the <code>googlegroups</code> <a class="wiki" href="/wiki/InterWiki">InterWiki</a> prefix, for example: <a class="ext-link" href="https://groups.google.com/group/trac-dev/msg/1b9c4e3eaeda3a0d" title="Message 1b9c4e3eaeda3a0d in trac-dev Google Group"><span class="icon"></span>googlegroups:trac-dev:1b9c4e3eaeda3a0d</a>. You can see the message identifier in the address bar of your browser when viewing the message in Individual Message view mode. You can go there from the default threaded view by clicking on <em>More options</em> and then on the <em>Individual Message</em> or <em>Show Original</em> links. </p> <h2 class="section" id="Developmentguides">Development guides</h2> <table class="wiki"> <tr><th> <strong>Getting Started</strong> </th><th> <strong><span class="wikianchor" id="Contributing">Contributing</span></strong> </th></tr><tr><td style="vertical-align: top"><ul><li><strong><a class="wiki" href="/wiki/TracDev/DevelopmentEnvironmentSetup">DevelopmentEnvironmentSetup</a></strong> </li><li><a class="wiki" href="/wiki/TracDev/PythonIDE">PythonIDE</a> </li><li><a class="wiki" href="/wiki/TracDev/DevelopmentWithEclipseAndPyDev">DevelopmentWithEclipseAndPyDev</a> </li><li><a class="wiki" href="/wiki/TracDev/AlternativeFrontends">AlternativeFrontends</a> </li></ul></td><td><ul><li><strong><a class="wiki" href="/wiki/TracDev/CodingStyle">CodingStyle</a></strong> </li><li><strong><a class="wiki" href="/wiki/TracDev/SubmittingPatches">SubmittingPatches</a></strong> </li><li><a class="wiki" href="/wiki/TracDev/DevelopmentWorkflow">DevelopmentWorkflow</a> </li><li><a class="wiki" href="/wiki/TracDev/ReleaseChecklist">ReleaseChecklist</a> </li><li><a class="wiki" href="/wiki/TracDev/ToDo">ToDo</a> </li><li><a class="wiki" href="/wiki/TracTicketTriage">TracTicketTriage</a> </li></ul></td></tr><tr> <th> <strong><span class="wikianchor" id="Overviews">Overviews</span></strong> </th><th> <strong>Testing</strong> </th></tr><tr><td><ul><li><a class="wiki" href="/wiki/TracDev/ComponentArchitecture">ComponentArchitecture</a> </li><li><strong><a class="wiki" href="/wiki/TracDev/ApiDocs">ApiDocs</a></strong><span class="wikianchor" id="see-ApiDocs"></span> </li><li><a class="wiki" href="/wiki/TracDev/TracURLs">TracURLs</a> </li><li><a class="wiki" href="/wiki/TracDev/RequestHandling">RequestHandling</a> </li><li><strong><a class="wiki" href="/wiki/TracDev/PluginDevelopment">PluginDevelopment</a></strong> <ul><li><a class="wiki" href="/wiki/TracDev/PluginDevelopment/ExtensionPoints">ExtensionPoints</a> </li><li><a class="wiki" href="/wiki/TracDev/IWikiSyntaxProviderExample">IWikiSyntaxProviderExample</a> </li></ul></li><li><a class="wiki" href="/wiki/TracDev/DataModels">DataModels</a> </li><li><a class="wiki" href="/wiki/TracDev/DatabaseSchema">DatabaseSchema</a> </li></ul></td><td style="vertical-align: top"><ul><li><a class="wiki" href="/wiki/TracDev/UnitTests">UnitTests</a> </li><li><a class="wiki" href="/wiki/TracDev/FunctionalTests">FunctionalTests</a> </li><li><a class="wiki" href="/wiki/TracDev/AutomaticBuilds">AutomaticBuilds</a> </li><li><a class="wiki" href="/wiki/TracDev/ReleaseTesting">ReleaseTesting</a> </li><li><a class="wiki" href="/wiki/TracDev/WritingUnitTests">WritingUnitTests</a> </li></ul></td></tr><tr> <th> <strong>Miscellaneous Thematic Guides</strong> </th><th> <strong>Translation</strong> </th></tr><tr><td><ul><li><a class="wiki" href="/wiki/TracDev/DatabaseApi">DatabaseApi</a> </li><li><a class="wiki" href="/wiki/TracDev/DatabaseUpgrades">DatabaseUpgrades</a> </li><li><a class="wiki" href="/wiki/TracDev/VersionControlApi">VersionControlApi</a> </li><li><a class="wiki" href="/wiki/TracDev/ConfigApi">ConfigApi</a> </li><li><a class="wiki" href="/wiki/TracDev/NotificationApi">NotificationApi</a> </li><li><a class="wiki" href="/wiki/TracDev/HttpMethods">HttpMethods</a> </li><li><a class="wiki" href="/wiki/TracDev/HtmlTemplates">HtmlTemplates</a> </li><li><a class="wiki" href="/wiki/TracDev/JavaScript">JavaScript</a> </li><li><a class="wiki" href="/wiki/TracDev/UnicodeGuidelines">UnicodeGuidelines</a> </li><li><a class="wiki" href="/wiki/TracDev/PortingFromClearSilverToGenshi">PortingFromClearSilverToGenshi</a> </li><li><a class="wiki" href="/wiki/TracDev/PortingFromGenshiToJinja">PortingFromGenshiToJinja</a> </li><li><a class="wiki" href="/wiki/TracDev/CacheManager">CacheManager</a> </li><li><a class="wiki" href="/wiki/TracDev/TracSession">TracSession</a> </li><li><a class="wiki" href="/wiki/TracDev/Exceptions">Exceptions</a> </li></ul></td><td style="vertical-align: top"><ul><li><a class="wiki" href="/wiki/TracL10N">TracL10N</a> </li><li><a class="wiki" href="/wiki/MissingTranslations">MissingTranslations</a> </li></ul></td></tr><tr> <th> <strong><a class="wiki" href="/wiki/TracDev/Proposals">Development Proposals</a></strong> </th><th> <strong><a class="wiki" href="/wiki/TracDev/Branches">Development Branches</a></strong> </th></tr><tr><td style="vertical-align: top"><p> Blueprints for major changes on a topic: </p><div class="titleindex"><ul><li><a href="/wiki/TracDev/Proposals/AdvancedNotification">AdvancedNotification</a></li><li><a href="/wiki/TracDev/Proposals/AdvancedNotification/DatabaseSchema">AdvancedNotification/DatabaseSchema</a></li><li><a href="/wiki/TracDev/Proposals/AdvancedNotification/IEmailAddressResolver">AdvancedNotification/IEmailAddressResolver</a></li><li><a href="/wiki/TracDev/Proposals/AdvancedNotification/IEmailDecorator">AdvancedNotification/IEmailDecorator</a></li><li><a href="/wiki/TracDev/Proposals/AdvancedNotification/INotificationDistributor">AdvancedNotification/INotificationDistributor</a></li><li><a href="/wiki/TracDev/Proposals/AdvancedNotification/INotificationFormatter">AdvancedNotification/INotificationFormatter</a></li><li><a href="/wiki/TracDev/Proposals/AdvancedNotification/INotificationSubscriber">AdvancedNotification/INotificationSubscriber</a></li><li><a href="/wiki/TracDev/Proposals/AdvancedNotification/IPreferencePanelProvider">AdvancedNotification/IPreferencePanelProvider</a></li><li><a href="/wiki/TracDev/Proposals/AdvancedNotification/NotificationApi">AdvancedNotification/NotificationApi</a></li><li><a href="/wiki/TracDev/Proposals/AdvancedWikiFormatting">AdvancedWikiFormatting</a></li><li><a href="/wiki/TracDev/Proposals/AdvancedWikiOperations">AdvancedWikiOperations</a></li><li><a href="/wiki/TracDev/Proposals/Announcer">Announcer</a></li><li><a href="/wiki/TracDev/Proposals/BatchModification">BatchModification</a></li><li><a href="/wiki/TracDev/Proposals/CacheInvalidation">CacheInvalidation</a></li><li><a href="/wiki/TracDev/Proposals/ConfigEnumTranslation">ConfigEnumTranslation</a></li><li><a href="/wiki/TracDev/Proposals/ControllerApi">ControllerApi</a></li><li><a href="/wiki/TracDev/Proposals/DataModel">DataModel</a></li><li><a href="/wiki/TracDev/Proposals/EmailValidation">EmailValidation</a></li><li><a href="/wiki/TracDev/Proposals/EvenFinerGrainedPermissions">EvenFinerGrainedPermissions</a></li><li><a href="/wiki/TracDev/Proposals/ITicketQueryRenderer">ITicketQueryRenderer</a></li><li><a href="/wiki/TracDev/Proposals/Jinja">Jinja</a></li><li><a href="/wiki/TracDev/Proposals/Jinja/TracInterfaceCustomization">Jinja/TracInterfaceCustomization</a></li><li><a href="/wiki/TracDev/Proposals/Journaling">Journaling</a></li><li><a href="/wiki/TracDev/Proposals/MultipleProject">MultipleProject</a></li><li><a href="/wiki/TracDev/Proposals/NewHelp">NewHelp</a></li><li><a href="/wiki/TracDev/Proposals/NewTicketDuplicateCheck">NewTicketDuplicateCheck</a></li><li><a href="/wiki/TracDev/Proposals/PortalTrac">PortalTrac</a></li><li><a href="/wiki/TracDev/Proposals/ProjectLabels">ProjectLabels</a></li><li><a href="/wiki/TracDev/Proposals/Setuptools">Setuptools</a></li><li><a href="/wiki/TracDev/Proposals/ThemePlugins">ThemePlugins</a></li><li><a href="/wiki/TracDev/Proposals/TicketLinks">TicketLinks</a></li><li><a href="/wiki/TracDev/Proposals/TicketTypes">TicketTypes</a></li><li><a href="/wiki/TracDev/Proposals/TracRelations">TracRelations</a></li><li><a href="/wiki/TracDev/Proposals/TracTicketsCustomTimeFields">TracTicketsCustomTimeFields</a></li><li><a href="/wiki/TracDev/Proposals/UserSystem">UserSystem</a></li><li><a href="/wiki/TracDev/Proposals/VerticalHorizontalParsing">VerticalHorizontalParsing</a></li><li><a href="/wiki/TracDev/Proposals/WikiNamespaces">WikiNamespaces</a></li><li><a href="/wiki/TracDev/Proposals/WikiParserFormatterSplit">WikiParserFormatterSplit</a></li><li><a href="/wiki/TracDev/Proposals/WikiStorage">WikiStorage</a></li></ul></div><p> </p> </td><td style="vertical-align: top"><p> Documentation for ongoing work in code branches: </p><div class="titleindex"><ul><li><a href="/wiki/TracDev/Branches/Announcer">Announcer</a></li><li><a href="/wiki/TracDev/Branches/MilestoneEdit">MilestoneEdit</a></li><li><a href="/wiki/TracDev/Branches/Testing">Testing</a></li><li><a href="/wiki/TracDev/Branches/WikiBlame">WikiBlame</a></li><li><a href="/wiki/TracDev/Branches/WikiRename">WikiRename</a></li></ul></div><p> </p> <p> See also: </p> <ul><li><a class="ext-link" href="https://github.com/edgewall/trac/network"><span class="icon"></span>Mirror on Github</a> </li><li><a class="wiki" href="/wiki/TracTeam/Repositories">Developer repositories</a> </li></ul><p> The <a href="/testing">testing</a> demo site features work-in-progress branches (<a class="wiki" href="/wiki/TracDev/Proposed">Proposed</a>) for which feedback is welcome. </p> </td></tr><tr> <th> <strong>Scratch Pad</strong> for developers </th><th> <strong>Ideas</strong> from users </th></tr><tr><td style="vertical-align: top"><ul><li><a class="wiki" href="/wiki/TracDev/ScratchPad">TracDev/ScratchPad</a>, containing: <div class="titleindex"><ul><li><a href="/wiki/TracDev/ScratchPad/ChangesetModule">ChangesetModule</a></li><li><a href="/wiki/TracDev/ScratchPad/DataModels">DataModels</a></li><li><a href="/wiki/TracDev/ScratchPad/DatabaseBackend">DatabaseBackend</a></li><li><a href="/wiki/TracDev/ScratchPad/DefaultTheme">DefaultTheme</a></li><li><a href="/wiki/TracDev/ScratchPad/TicketModule">TicketModule</a></li><li><a href="/wiki/TracDev/ScratchPad/TracQuery">TracQuery</a></li><li><a href="/wiki/TracDev/ScratchPad/TracRoadmap">TracRoadmap</a></li></ul></div> </li></ul></td><td style="vertical-align: top"><p> </p><div class="titleindex"><ul><li><a href="/wiki/TracIdeas/DefaultTheme">DefaultTheme</a></li><li><a href="/wiki/TracIdeas/TracAttachments">TracAttachments</a></li><li><a href="/wiki/TracIdeas/TracBrowser">TracBrowser</a></li><li><a href="/wiki/TracIdeas/TracChangeset">TracChangeset</a></li><li><a href="/wiki/TracIdeas/TracQuery">TracQuery</a></li><li><a href="/wiki/TracIdeas/TracSearch">TracSearch</a></li><li><a href="/wiki/TracIdeas/TracTickets">TracTickets</a></li><li><a href="/wiki/TracIdeas/TracWiki">TracWiki</a></li><li><a href="/wiki/TracIdeas/TracWorkflow">TracWorkflow</a></li></ul></div><p> </p> </td></tr></table> </div> <div class="trac-modifiedby"> <span> <a href="/wiki/TracDev?action=diff&version=76" 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