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CONTRIBUTING: Rationalize sections
Mostly this tries to give logical header levels, so the "Fish Style Guide" section is in the "Code Style" section Also remove a few unimportant C++-centric sections - I'm not sure iwyu even runs anymore, and cppcheck isn't great in my experience.
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Fabian Boehm
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133
CONTRIBUTING.rst
133
CONTRIBUTING.rst
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@ -1,3 +1,4 @@
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####################
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Contributing To Fish
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####################
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@ -11,7 +12,7 @@ Whether you want to change some of the core rust/C++ source, enhance or add a co
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improve the documentation or translate something, this document will tell you how.
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Getting Set Up
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--------------
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==============
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Fish is developed on Github, at https://github.com/fish-shell/fish-shell.
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@ -37,7 +38,7 @@ Of course not everything is required always - if you just want to contribute som
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and if the change is very simple and obvious you can just send it in. Use your judgement!
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Guidelines
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----------
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==========
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In short:
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@ -45,7 +46,7 @@ In short:
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- Use automated tools to help you (including ``make test``, ``build_tools/style.fish`` and ``make lint``)
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Contributing completions
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------------------------
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========================
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Completion scripts are the most common contribution to fish, and they are very welcome.
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@ -77,7 +78,7 @@ Put your completion script into share/completions/name-of-command.fish. If you h
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If you want to add tests, you probably want to add a littlecheck test. See below for details.
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Contributing documentation
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--------------------------
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==========================
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The documentation is stored in ``doc_src/``, and written in ReStructured Text and built with Sphinx.
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@ -90,7 +91,7 @@ which will build the docs as html in /tmp/fish-doc. You can open it in a browser
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The builtins and various functions shipped with fish are documented in doc_src/cmds/.
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Contributing to fish's Rust/C++ core
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------------------------------------
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====================================
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As of now, fish is in the process of switching from C++11 to Rust, so this is in flux.
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@ -100,7 +101,6 @@ Importantly, the initial port strives for fidelity with the existing C++ codebas
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so it won't be 100% idiomatic rust - in some cases it'll have some awkward interface code
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in order to interact with the C++.
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Linters
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-------
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@ -118,8 +118,10 @@ help catch mistakes such as using ``wcwidth()`` rather than
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``fish_wcwidth()``. Please add a new rule if you find similar mistakes
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being made.
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We use ``clippy`` for Rust.
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Code Style
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----------
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==========
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To ensure your changes conform to the style rules run
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@ -149,6 +151,20 @@ If you want to check the style of the entire code base run
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That command will refuse to restyle any files if you have uncommitted
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changes.
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Fish Script Style Guide
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-----------------------
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1. All fish scripts, such as those in the *share/functions* and *tests*
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directories, should be formatted using the ``fish_indent`` command.
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2. Function names should be in all lowercase with words separated by
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underscores. Private functions should begin with an underscore. The
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first word should be ``fish`` if the function is unique to fish.
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3. The first word of global variable names should generally be ``fish``
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for public vars or ``_fish`` for private vars to minimize the
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possibility of name clashes with user defined vars.
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Configuring Your Editor for Fish Scripts
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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@ -185,20 +201,6 @@ made to run fish_indent via e.g.
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(add-hook 'fish-mode-hook (lambda ()
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(add-hook 'before-save-hook 'fish_indent-before-save)))
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Fish Script Style Guide
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-----------------------
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1. All fish scripts, such as those in the *share/functions* and *tests*
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directories, should be formatted using the ``fish_indent`` command.
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2. Function names should be in all lowercase with words separated by
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underscores. Private functions should begin with an underscore. The
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first word should be ``fish`` if the function is unique to fish.
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3. The first word of global variable names should generally be ``fish``
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for public vars or ``_fish`` for private vars to minimize the
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possibility of name clashes with user defined vars.
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C++ Style Guide
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---------------
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@ -248,7 +250,7 @@ Rust Style Guide
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Use ``cargo fmt`` and ``cargo clippy``. Clippy warnings can be turned off if there's a good reason to.
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Testing
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-------
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=======
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The source code for fish includes a large collection of tests. If you
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are making any changes to fish, running these tests is a good way to make
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@ -273,7 +275,7 @@ fish_tests.cpp is mostly useful for unit tests - if you wish to test that a func
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The pexpects are written in python and can simulate input and output to/from a terminal, so they are needed for anything that needs actual interactivity. The runner is in build_tools/pexpect_helper.py, in case you need to modify something there.
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Local testing
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~~~~~~~~~~~~~
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-------------
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The tests can be run on your local computer on all operating systems.
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@ -283,7 +285,7 @@ The tests can be run on your local computer on all operating systems.
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make test
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Git hooks
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~~~~~~~~~
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---------
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Since developers sometimes forget to run the tests, it can be helpful to
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use git hooks (see githooks(5)) to automate it.
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@ -326,7 +328,7 @@ To install the hook, place the code in a new file
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``.git/hooks/pre-push`` and make it executable.
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Coverity Scan
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~~~~~~~~~~~~~
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-------------
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We use Coverity’s static analysis tool which offers free access to open
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source projects. While access to the tool itself is restricted,
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@ -336,42 +338,8 @@ with their GitHub account. Currently, tests are triggered upon merging
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the ``master`` branch into ``coverity_scan_master``. Even if you are not
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a fish developer, you can keep an eye on our statistics there.
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Installing the Required Tools
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-----------------------------
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Installing the Linting Tools
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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To install the lint checkers on Mac OS X using Homebrew:
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::
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brew install cppcheck
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To install the lint checkers on Debian-based Linux distributions:
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::
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sudo apt-get install clang
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sudo apt-get install cppcheck
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Installing the Formatting Tools
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Mac OS X:
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::
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brew install clang-format
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Debian-based:
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::
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sudo apt-get install clang-format
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Message Translations
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--------------------
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Contributing Translations
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=========================
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Fish uses the GNU gettext library to translate messages from English to
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other languages.
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@ -385,7 +353,8 @@ macro:
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streams.out.append_format(_(L"%ls: There are no jobs\n"), argv[0]);
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All messages in fish script must be enclosed in single or double quote
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characters. They must also be translated via a subcommand. This means
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characters for the message extraction to find them.
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They must also be translated via a command substitution. This means
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that the following are **not** valid:
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::
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@ -400,9 +369,9 @@ Above should be written like this instead:
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echo (_ "hello")
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echo (_ "goodbye")
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Note that you can use either single or double quotes to enclose the
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You can use either single or double quotes to enclose the
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message to be translated. You can also optionally include spaces after
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the opening parentheses and once again before the closing parentheses.
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the opening parentheses or before the closing parentheses.
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Creating and updating translations requires the Gettext tools, including
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``xgettext``, ``msgfmt`` and ``msgmerge``. Translation sources are
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@ -438,44 +407,10 @@ wiki <https://github.com/fish-shell/fish-shell/wiki/Translations>`__ for
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more information.
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Versioning
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----------
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==========
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The fish version is constructed by the *build_tools/git_version_gen.sh*
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script. For developers the version is the branch name plus the output of
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``git describe --always --dirty``. Normally the main part of the version
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will be the closest annotated tag. Which itself is usually the most
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recent release number (e.g., ``2.6.0``).
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Include What You Use
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--------------------
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You should not depend on symbols being visible to a ``*.cpp`` module
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from ``#include`` statements inside another header file. In other words
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if your module does ``#include "common.h"`` and that header does
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``#include "signals.h"`` your module should not assume the sub-include is
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present. It should instead directly ``#include "signals.h"`` if it needs
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any symbol from that header. That makes the actual dependencies much
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clearer. It also makes it easy to modify the headers included by a
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specific header file without having to worry that will break any module
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(or header) that includes a particular header.
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To help enforce this rule the ``make lint`` (and ``make lint-all``)
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command will run the
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`include-what-you-use <https://include-what-you-use.org/>`__ tool. You
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can find the IWYU project on
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`github <https://github.com/include-what-you-use/include-what-you-use>`__.
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To install the tool on OS X you’ll need to add a
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`formula <https://github.com/jasonmp85/homebrew-iwyu>`__ then install
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it:
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::
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brew tap jasonmp85/iwyu
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brew install iwyu
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On Ubuntu you can install it via ``apt-get``:
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::
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sudo apt-get install iwyu
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