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47aa79813d
Fish functions are great for configuring fish but they don't integrate seamlessly with the rest of the system. For tasks that can run outside fish, writing scripts is the natural approach. To edit my scripts I frequently run $EDITOR (which my-script) Would be great to reduce the amount typing for this common case (the names of editor and scripts are usually short, so that's a lot of typing spent on the boring part). Our Alt+o binding opens the file at the cursor in a pager. When the cursor is in command position, it doesn't do anything (unless the command is actually a valid file path). Let's make it open the resolved file path in an editor. In future, we should teach this binding to delegate to "funced" upon seeing a function instead of a script. I didn't do it yet because funced prints messages, so it will mess with the commandline rendering if used from a binding. (The fact that funced encourages overwriting functions that ship with fish is worrysome. Also I'm not sure why funced doesn't open the function's source file directly (if not sourced from stdin). Persisting the function should probably be the default.) Alternative approach: I think other shells expand "=my-script" to "/path/to/my-script". That is certainly an option -- if we do that we'd want to teach fish to complete command names after "=". Since I don't remember scenarios where I care about the full path of a script beyond opening it in my editor, I didn't look further into this. Closes #10266
217 lines
7.6 KiB
ReStructuredText
217 lines
7.6 KiB
ReStructuredText
.. |Cirrus CI| image:: https://api.cirrus-ci.com/github/fish-shell/fish-shell.svg?branch=master
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:target: https://cirrus-ci.com/github/fish-shell/fish-shell
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:alt: Cirrus CI Build Status
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`fish <https://fishshell.com/>`__ - the friendly interactive shell |Build Status| |Cirrus CI|
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=================================================================================
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fish is a smart and user-friendly command line shell for macOS, Linux,
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and the rest of the family. fish includes features like syntax
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highlighting, autosuggest-as-you-type, and fancy tab completions that
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just work, with no configuration required.
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For downloads, screenshots and more, go to https://fishshell.com/.
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Quick Start
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-----------
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fish generally works like other shells, like bash or zsh. A few
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important differences can be found at
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https://fishshell.com/docs/current/tutorial.html by searching for the
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magic phrase “unlike other shells”.
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Detailed user documentation is available by running ``help`` within
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fish, and also at https://fishshell.com/docs/current/index.html
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Getting fish
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------------
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macOS
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~~~~~
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fish can be installed:
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- using `Homebrew <http://brew.sh/>`__: ``brew install fish``
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- using `MacPorts <https://www.macports.org/>`__:
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``sudo port install fish``
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- using the `installer from fishshell.com <https://fishshell.com/>`__
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- as a `standalone app from fishshell.com <https://fishshell.com/>`__
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Note: The minimum supported macOS version is 10.10 "Yosemite".
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Packages for Linux
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~~~~~~~~~~~~~~~~~~
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Packages for Debian, Fedora, openSUSE, and Red Hat Enterprise
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Linux/CentOS are available from the `openSUSE Build
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Service <https://software.opensuse.org/download.html?project=shells%3Afish&package=fish>`__.
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Packages for Ubuntu are available from the `fish
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PPA <https://launchpad.net/~fish-shell/+archive/ubuntu/release-3>`__,
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and can be installed using the following commands:
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::
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sudo apt-add-repository ppa:fish-shell/release-3
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sudo apt update
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sudo apt install fish
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Instructions for other distributions may be found at
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`fishshell.com <https://fishshell.com>`__.
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Windows
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~~~~~~~
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- On Windows 10/11, fish can be installed under the WSL Windows Subsystem
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for Linux with the instructions for the appropriate distribution
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listed above under “Packages for Linux”, or from source with the
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instructions below.
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- Fish can also be installed on all versions of Windows using
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`Cygwin <https://cygwin.com/>`__ (from the **Shells** category).
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Building from source
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~~~~~~~~~~~~~~~~~~~~
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If packages are not available for your platform, GPG-signed tarballs are
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available from `fishshell.com <https://fishshell.com/>`__ and
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`fish-shell on
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GitHub <https://github.com/fish-shell/fish-shell/releases>`__. See the
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`Building <#building>`__ section for instructions.
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Running fish
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------------
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Once installed, run ``fish`` from your current shell to try fish out!
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Dependencies
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~~~~~~~~~~~~
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Running fish requires:
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- curses or ncurses (preinstalled on most \*nix systems)
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- some common \*nix system utilities (currently ``mktemp``), in
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addition to the basic POSIX utilities (``cat``, ``cut``, ``dirname``,
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``file``, ``ls``, ``mkdir``, ``mkfifo``, ``rm``, ``sort``, ``tee``, ``tr``,
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``uname`` and ``sed`` at least, but the full coreutils plus ``find`` and
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``awk`` is preferred)
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- The gettext library, if compiled with
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translation support
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The following optional features also have specific requirements:
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- builtin commands that have the ``--help`` option or print usage
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messages require ``nroff`` or ``mandoc`` for
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display
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- automated completion generation from manual pages requires Python 3.5+
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- the ``fish_config`` web configuration tool requires Python 3.5+ and a web browser
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- system clipboard integration (with the default Ctrl-V and Ctrl-X
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bindings) require either the ``xsel``, ``xclip``,
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``wl-copy``/``wl-paste`` or ``pbcopy``/``pbpaste`` utilities
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- full completions for ``yarn`` and ``npm`` require the
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``all-the-package-names`` NPM module
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- ``colorls`` is used, if installed, to add color when running ``ls`` on platforms
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that do not have color support (such as OpenBSD)
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Building
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--------
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.. _dependencies-1:
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Dependencies
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~~~~~~~~~~~~
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Compiling fish from a tarball requires:
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- a C++11 compiler (g++ 4.8 or later, or clang 3.3 or later)
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- CMake (version 3.5 or later)
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- a curses implementation such as ncurses (headers and libraries)
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- PCRE2 (headers and libraries) - optional, this will be downloaded if missing
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- gettext (headers and libraries) - optional, for translation support
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Sphinx is also optionally required to build the documentation from a
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cloned git repository.
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Additionally, running the test suite requires Python 3.5+ and the pexpect package.
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Dependencies, git master
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~~~~~~~~~~~~~~~~~~~~~~~~
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Building from git master currently requires, in addition to the dependencies for a tarball:
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- Rust (version 1.67 or later)
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- CMake (version 3.19 or later)
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- libclang, even if you are compiling with GCC
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- an Internet connection
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fish is in the process of being ported to Rust, replacing all C++ code, and as such these dependencies are a bit awkward and in flux.
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In general, we would currently not recommend running from git master if you just want to *use* fish.
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Given the nature of the port, what is currently there is mostly a slower and buggier version of the last C++-based release.
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Building from source (all platforms) - Makefile generator
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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To install into ``/usr/local``, run:
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.. code:: bash
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mkdir build; cd build
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cmake ..
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make
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sudo make install
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The install directory can be changed using the
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``-DCMAKE_INSTALL_PREFIX`` parameter for ``cmake``.
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Build options
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~~~~~~~~~~~~~
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In addition to the normal CMake build options (like ``CMAKE_INSTALL_PREFIX``), fish has some other options available to customize it.
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- BUILD_DOCS=ON|OFF - whether to build the documentation. This is automatically set to OFF when Sphinx isn't installed.
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- INSTALL_DOCS=ON|OFF - whether to install the docs. This is automatically set to on when BUILD_DOCS is or prebuilt documentation is available (like when building in-tree from a tarball).
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- FISH_USE_SYSTEM_PCRE2=ON|OFF - whether to use an installed pcre2. This is normally autodetected.
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- MAC_CODESIGN_ID=String|OFF - the codesign ID to use on Mac, or "OFF" to disable codesigning.
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- WITH_GETTEXT=ON|OFF - whether to build with gettext support for translations.
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Note that fish does *not* support static linking and will attempt to error out if it detects it.
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Help, it didn’t build!
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~~~~~~~~~~~~~~~~~~~~~~
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If fish reports that it could not find curses, try installing a curses
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development package and build again.
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On Debian or Ubuntu you want:
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::
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sudo apt install build-essential cmake ncurses-dev libncurses5-dev libpcre2-dev gettext
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On RedHat, CentOS, or Amazon EC2:
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::
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sudo yum install ncurses-devel
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Contributing Changes to the Code
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--------------------------------
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See the `Guide for Developers <CONTRIBUTING.rst>`__.
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Contact Us
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----------
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Questions, comments, rants and raves can be posted to the official fish
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mailing list at https://lists.sourceforge.net/lists/listinfo/fish-users
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or join us on our `matrix
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channel <https://matrix.to/#/#fish-shell:matrix.org>`__. Or use the `fish tag
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on Unix & Linux Stackexchange <https://unix.stackexchange.com/questions/tagged/fish>`__.
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There is also a fish tag on Stackoverflow, but it is typically a poor fit.
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Found a bug? Have an awesome idea? Please `open an
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issue <https://github.com/fish-shell/fish-shell/issues/new>`__.
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.. |Build Status| image:: https://github.com/fish-shell/fish-shell/workflows/make%20test/badge.svg
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:target: https://github.com/fish-shell/fish-shell/actions
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