mirror of
https://github.com/netsurf-browser/netsurf
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156 lines
5.2 KiB
Markdown
156 lines
5.2 KiB
Markdown
Development
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===========
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[TOC]
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# Working with the team
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Generally it is sensible to check with the other developers if you are
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planning to make a change to NetSurf intended to be merged.
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We are often about on the IRC channel but failing that the developer
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mailing list is a good place to try.
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All the project sources are held in [public git repositories](http://source.netsurf-browser.org/)
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# Compilation environment
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Compiling a development edition of NetSurf requires a POSIX style
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environment. Typically this means a Linux based system although Free
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BSD, Open BSD, Mac OS X and Haiku all known to work.
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## Toolchains
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Compilation for non POSIX toolkits/frontends (e.g. RISC OS) generally
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relies upon a cross compilation environment which is generated using
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the makefiles found in our
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[toolchains](http://source.netsurf-browser.org/toolchains.git/)
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repository. These toolchains are built by the Continuous Integration
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(CI) system and the
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[results of the system](http://ci.netsurf-browser.org/builds/toolchains/)
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are published as a convenience.
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## Quick setup
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The [quick start guide](docs/quick-start.md) can be used to get a
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development environment setup quickly and uses the
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[env.sh](env_8sh_source.html) script the core team utilises.
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## Manual setup
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The Manual environment setup and compilation method is covered by the
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details in the [netsurf libraries](docs/netsurf-libraries.md) document
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for the core libraries and then one of the building documents for the
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specific frontend.
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- [Amiga Os cross](docs/building-AmigaCross.md) and [Amiga OS](docs/building-AmigaOS.md)
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- [Framebuffer](docs/building-Framebuffer.md)
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- [GTK](docs/building-GTK.md)
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- [Haiku (BeOS)](docs/building-Haiku.md)
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- [Windows Win32](docs/building-Windows.md)
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These documents are sometimes not completely up to
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date and the env.sh script should be considered canonical.
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# Logging
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The [logging](docs/logging.md) interface controls debug and error
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messages not output through the GUI.
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# Unit testing
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NetSurf [unit tests](docs/unit-testing.md) provide basic test coverage
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of many core parts of the browser code such as url parsing and utility
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functions.
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# Integration testing
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The monkey frontend is used to perform complex tests involving
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operating the browser as a user might (opening windows, navigating to
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websites and rendering the contents etc.)
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A test is written as a set of operations in a yaml file. A test can be
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run using the monkey_driver.py python script
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$ ./test/monkey_driver.py -m ./nsmonkey -t test/monkey-tests/start-stop.yaml
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There are very few tests within the netsurf repository. The large
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majority of integration tests are held within the
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[netsurf-test](http://source.netsurf-browser.org/netsurf-test.git/)
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repository.
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To allow more effective use of these tests additional infrastructure
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has been constructed to allow groupings of tests to be run. This is
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used extensively by the CI system to perform integration testing on
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every commit.
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Each test is a member of a group and the tests within each group are
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run together. Groups are listed within division index files. To run
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the integration tests the monkey-see-monkey-do python script is
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used. It downloads the test plan for a division from the netsurf test
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infrastructrure and executes it.
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$ ./test/monkey-see-monkey-do
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Fetching tests...
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Parsing tests...
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Running tests...
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Start group: initial
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[ Basic checks that the browser can start and stop ]
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=> Run test: start-stop-no-js.yaml
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=> Run test: basic-navigation.yaml
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=> Run test: start-stop.yaml
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Start group: no-networking
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[ Tests that require no networking ]
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=> Run test: resource-scheme.yaml
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Start group: ecmascript
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[ ECMAScript tests ]
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PASS
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# Documented API
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The NetSurf code makes use of Doxygen for code documentation.
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There are several documents which detail specific aspects of the
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codebase and APIs.
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## Core window
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The [core window API](docs/core-window-interface.md) allows frontends
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to use generic core code for user interface elements beyond the
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browser render.
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## Source object caching
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The [source object caching](docs/source-object-backing-store.md)
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provides a way for downloaded content to be kept on a persistent
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storage medium such as hard disc to make future retrieval of that
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content quickly.
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# Javascript
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Javascript provision is split into four parts:
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- An engine that takes source code and executes it.
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- Interfaces between the program and the web page.
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- Browser support to retrieve and manage the source code to be executed.
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- Browser support for the dispatch of events from user interface.
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## Library
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JavaScript is provided by integrating the duktape library. There are
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[instructions](docs/updating-duktape.md) on how to update the library.
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## Interface binding
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In order for javascript programs to to interact with the page contents
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it must use the Document Object Model (DOM) and Cascading Style Sheet
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Object Model (CSSOM) API.
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These interfaces are described using web Interface Description
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Language (IDL) within the relevant specifications
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(e.g. https://dom.spec.whatwg.org/).
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Each interface described by the webIDL must be bound (connected) to
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the browsers internal representation for the DOM or CSS, etc. The
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process of [writing bindings](docs/jsbinding.md) is ongoing.
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