# Changes between Version 13 and Version 14 of Documentation/DevelopmentCenter/DeveloperGuidelines

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Timestamp:
08/10/10 03:22:45 (9 years ago)
Comment:

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 v13 [[PageOutline]] = HeuristicLab Development Guidelines = == General == * any documentation has to be written in English (this includes all documents, wiki-pages, commit messages, code comments, ticket descriptions, etc.) * names of plugins, namespaces, classes, structs, enums, methods, properties, variables, etc. are in English * C# 3.0 is used as programming language * HeuristicLab is based on the Microsoft .NET Framework 3.5 SP1 == 1. General == * Any documentation has to be written in English. This includes all documents, wiki-pages, commit messages, code comments, ticket descriptions, ... * Names of plugins, namespaces, classes, structs, enums, methods, properties, variables, ... are in English. * C# is used as programming language. ---- == 2. Coding Standards == HeuristicLab code should be conform to the guidelines described in [http://msdn.microsoft.com/en-us/library/ms229042.aspx Design Guidelines for Developing Class Libraries]. == Software == === Runtime Environment === * [http://www.microsoft.com/downloads/details.aspx?familyid=333325FD-AE52-4E35-B531-508D977D32A6&displaylang=en Microsoft .NET Framework 3.5] * [http://www.microsoft.com/downloads/details.aspx?familyid=AB99342F-5D1A-413D-8319-81DA479AB0D7&displaylang=de Microsoft .NET Framework 3.5 SP1] To ensure consistent formatting of the source code, developers should use identical settings for the Visual Studio Text Editor. The [attachment:"Visual Studio 2010 text editor settings.vssettings" appropriate settings] are attached to this page and should be imported in Visual Studio. === Development Environment === * Microsoft Visual Studio 2010 === Versioning System === * [http://subversion.tigris.org/ Subversion 1.4.2] * [http://tortoisesvn.net/ TortoiseSVN 1.5.0] === Issue Tracking and Wiki === * [http://trac.edgewall.org/ Trac 0.12] === API Documentation === * [http://www.codeplex.com/Sandcastle Sandcastle] * [http://www.codeplex.com/SHFB Sandcastle Help File Builder] ---- == Coding Conventions == HeuristicLab code has to be conform to the guidelines described in [http://msdn.microsoft.com/en-us/library/ms229042.aspx Design Guidelines for Developing Class Libraries]. To ensure consistent formatting of the source code, developers should use identical settings for the Visual Studio Text Editor. The appropriate settings are attached to this page and should be imported in Visual Studio. === Indentation === === 2.1. Indentation === * 2 spaces, no tabs === New Lines / Blocks === * opening braces ("{") are on the same line of the statement which opens the block * closing braces ("}") are on a new line after the last statement of the block === 2.2. New Lines and Blocks === * Opening braces ({) are on the same line of the statement which opens the block. * Closing braces (}) are on a new line after the last statement of the block. === Naming Conventions === * CamelCase for all identifiers * do not use "_" in identifiers * do not use "Hungarian Notation" (e.g. iCount for an int counter or dFactor for a double factor) * casing * classes, interfaces, properties, and methods start with an uppercase letter (e.g. Sheep, Weight, LookABitSilly) * fields, method parameters, and local variables start with a lowercase letter (e.g. sheep, weight, i) * names * interfaces start with an I (e.g. IItem, IOperator) * ~~abstract base classes end with Base (e.g. ItemBase, OperatorBase)~~ (this convention has been abandoned with HeuristicLab 3.3) * the name of a plugin has to be identical to the project name and the namespace of the plugin (e.g. HeuristicLab.Data) * the name of each HeuristicLab plugin starts with "HeuristicLab." * in order to structure plugins hierarchically, sub-namespaces can be used (e.g. HeuristicLab.Operators and HeuristicLab.Operators.Programmable) * each plugin is represented as a component in Trac * for Trac component names the leading "HeuristicLab." is omitted === 2.3. Naming === * All identifiers are written in !CamelCase. * Do not use _ in identifiers. * Do not use Hungarian notation (e.g. iCount for an int counter or dFactor for a double factor). * Casing: * Classes, interfaces, properties, and methods start with an uppercase letter (e.g. Sheep, Weight, LookABitSilly). * Fields, method parameters, and local variables start with a lowercase letter (e.g. sheep, weight, i). * Names: * Interfaces start with an I (e.g. IItem, IOperator). * Abstract base classes are not suffixed by Base (e.g. Item, Operator, Engine). * The name of each HeuristicLab plugin starts with HeuristicLab. * The name of a plugin has to be identical to the project name and the namespace of the plugin (e.g. HeuristicLab.Data). * Project names are suffixed with their major and minor version number (e.g. HeuristicLab.Data-3.3). * Plugins can be structured hierarchically (e.g. HeuristicLab.Operators and HeuristicLab.Operators.Programmable). * Sub-namespaces can be used to structure the source files in a plugin. * Each plugin is represented by a component in Trac. * The leading HeuristicLab. is omitted in Trac component names. * Data components that correspond to a property should have the same name as the property and are not prefixed by my (e.g. in Item filename is the correct name for the data component of the Filename property and not myFilename). A source code example of well formatted HeuristicLab code is available at SourceExample. A source code example of well formatted HeuristicLab code is available [wiki:DevelopersGuidelinesSourceExample here]. ---- == Versioning System == Source code and other documents are kept in a Subversion repository available at [https://sources.heuristiclab.com/hl3/core https://sources.heuristiclab.com/hl3/core]. Anonymous read-only access is available using the user name "anonymous" and an empty password. If you want to contribute to the HeuristicLab project and need write access, please write an e-mail to [mailto:support@heuristiclab.com support@heuristiclab.com]. All HeuristicLab developers have full write access to the whole repository. == 3. Versioning System == Source code and other documents are kept in the HeuristicLab Subversion repository available at http://dev.heuristiclab.com/svn/hl/core. Anonymous read-only access is enabled. If you want to contribute to HeuristicLab and therefore need write access to the repository, please write an e-mail to support@heuristiclab.com. For an introduction to Subversion, please take a look at the free book [http://svnbook.red-bean.com/ Version Control with Subversion] and the [http://tortoisesvn.net/docs/release/TortoiseSVN_en/index.html Online Documentation] of the Subversion client [http://tortoisesvn.net/ TortoiseSVN]. === Repository Layout === === 3.1. Repository Layout === * trunk * contains the main development branch (trunk) * documentation * contains all project documentation files (API documentation, license, presentations, etc.) * setup * contains all files to build the HeuristicLab installer * sources * HeuristicLab.sln * main solution file containing all projects * PreBuildEvent.cmd * commands executed each time before compiling HeuristicLab (cf. [wiki:DevelopmentGuidelines#SubWCRev Automatic Extraction of the Current Revision Number]) * project folders * each project (plugin) of HeuristicLab has its own folder * the folder name has to be identical to the namespace of the project (e.g. HeuristicLab.Data) * contains solution files, scripts and applications required for building HeuristicLab * plugin folders * each HeuristicLab plugin has its own folder * the folder name has to be identical to the name of the plugin (e.g. HeuristicLab.Data) * each plugin folder contains sub-folders for each major and/or minor version of the plugin (e.g. 3.3) * branches * contains a folder for each development branch * there are two different kinds of branches: * exploration branches * are used to explore and carry out major changes that effect large parts of the system * each developer is free to create a new exploration branch at any time * the name of an exploration branch has to be descriptive * the developer who created the branch is responsible for deleting it again after exploration is finished * there are three different kinds of branches: * feature/exploration branches * are used to develop new plugins or to explore and carry out major changes that effect large parts of the system * each developer is free to create new feature/exploration branches at any time * the name of a feature/exploration branch has to be descriptive * new plugins should be developed in a feature branch first * before merging a branch into the trunk, a comprehensive code review has to be done by at least one of the HeuristicLab architects * a developer who created a branch is responsible for deleting it again * release branches * are used to prepare release versions * the folder name of a tag has to be identical to the whole version number (e.g. 3.1.0.304) (cf. [wiki:DevelopmentGuidelines#Versioning Versioning]) === Guidelines for Working with the HeuristicLab SVN Repository === === 3.2. Guidelines for Working with the HeuristicLab SVN Repository === * all projects in the trunk have to be compilable in each revision * commit messages * new tags are created by the head developer of HeuristicLab only ---- == Versioning == == 4. Versioning == All plugins and all release bundles of HeuristicLab have a version number following the schema Major.Minor.Build.Revision: * Major and Minor * when creating a new release bundle of the whole HeuristicLab system (tag) the revision number has to be set manually === Automatic Extraction of the Current Revision Number === #SubWCRev === 4.1. Automatic Extraction of the Current Revision Number === #SubWCRev The tool [http://tortoisesvn.net/docs/release/TortoiseSVN_en/tsvn-subwcrev.html SubWCRev] of TortoiseSVN is used to extract the revision number of the last change of a plugin. SubWCRev is executed by the command [source:trunk/PreBuildEvent.cmd PreBuildEvent.cmd] which has to be set as pre-build event in each project in the following way: {{{ SubWCRev replaces the placeholders $WCREV$ and $WCNOW$ in the frame file AssemblyInfo.frame of the project and creates the file AssemblyInfo.cs. ---- == Issue Tracking == == 5. Issue Tracking == The issue tracking system [http://trac.edgewall.org/ Trac] is used to manage the HeuristicLab development process. The HeuristicLab Trac environment is available at [https://sources.heuristiclab.com/trac/hl3/core https://sources.heuristiclab.com/trac/hl3/core]. User credentials are identical to those of the Subversion repository. For anonymous access the user "anonymous" and an empty password can be used. Further information about Trac can be found in the [wiki:TracGuide Trac User and Administration Guide]. === Guidelines for Working with Trac === === 5.1. Guidelines for Working with Trac === * all development steps have to be represented by tickets * before working on a plugin, a ticket has to be created and accepted by the developer * usually the version number corresponds to the milestone ---- == Documentation == === Wiki === == 6. Documentation == === 6.1. Wiki === The Trac wiki system is used for documenting the development of HeuristicLab. A description of the Trac wiki syntax is available at WikiFormatting. === Source Code === === 6.2. Source Code === Source code is commented using single- or multi-line comments in English. Additionally, each type (class, enum, struct, etc.) and each public or protected method, property, or variable has to be documented using a C# XML comment. These comments are used to generate the API documentated using the tools [http://www.codeplex.com/Sandcastle Sandcastle] and [http://www.codeplex.com/SHFB Sandcastle Help File Builder]. A description of XML comments and several examples can be found at [http://msdn.microsoft.com/en-us/library/b2s063f7.aspx XML Documentation Comments] of the [http://msdn.microsoft.com/en-us/library/67ef8sbd.aspx C# Programming Guide]. ---- == Frequent Mistakes == == 7. Frequent Mistakes == * Use Environment.NewLine instead of the string constant "\n". * When possible use LINQ syntax instead of extension methods for LINQ expressions. ---- == Final Remarks == == 8. Final Remarks == Use your brain!