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67 lines
3.3 KiB
ReStructuredText
67 lines
3.3 KiB
ReStructuredText
.. program::fish_add_path
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fish_add_path - add to the path
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==============================================================
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Synopsis
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--------
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**fish_add_path** *path*...
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**fish_add_path** [(*-g* | *--global*) | (*-U* | *--universal*) | (*-P* | *--path*)] [(*-m* | *--move*)] [(*-a* | *--append*) | (*-p* | *--prepend*)] [(*-v* | *--verbose*) | (*-n* | *--dry-run*)] *paths*...
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Description
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-----------
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:program:`fish_add_path` is a simple way to add more components to fish's :envvar:`PATH`. It does this by adding the components either to $fish_user_paths or directly to $PATH (if the ``--path`` switch is given).
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It is (by default) safe to use ``fish_add_path`` in config.fish, or it can be used once, interactively, and the paths will stay in future because of :ref:`universal variables <variables-universal>`. This is a "do what I mean" style command, if you need more control, consider modifying the variable yourself.
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Components are normalized by :program:`realpath`. Trailing slashes are ignored and relative paths are made absolute (but symlinks are not resolved). If a component already exists, it is not added again and stays in the same place unless the ``--move`` switch is given.
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Components are added in the order they are given, and they are prepended to the path unless ``--append`` is given (if $fish_user_paths is used, that means they are last in $fish_user_paths, which is itself prepended to $PATH, so they still stay ahead of the system paths).
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If no component is new, the variable ($fish_user_paths or $PATH) is not set again or otherwise modified, so variable handlers are not triggered.
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If a component is not an existing directory, ``fish_add_path`` ignores it.
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Options
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-------
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- ``-a`` or ``--append`` causes the components to be added to the *end* of the variable
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- ``-p`` or ``--prepend`` causes the components to be added to the *front* of the variable (this is the default)
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- ``-g`` or ``--global`` means to use a global $fish_user_paths
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- ``-U`` or ``--universal`` means to use a universal $fish_user_paths - this is the default if it doesn't already exist
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- ``-P`` or ``--path`` means to use $PATH directly
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- ``-m`` or ``--move`` means to move already existing components to the place they would be added - by default they would be left in place and not added again
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- ``-v`` or ``--verbose`` means to print the :ref:`set <cmd-set>` command used
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- ``-n`` or ``--dry-run`` means to print the ``set`` command that would be used without executing it
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If ``--move`` is used, it may of course lead to the path swapping order, so you should be careful doing that in config.fish.
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Example
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-------
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::
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# I just installed mycoolthing and need to add it to the path to use it.
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> fish_add_path /opt/mycoolthing/bin
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# I want my ~/.local/bin to be checked first.
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> fish_add_path -m ~/.local/bin
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# I prefer using a global fish_user_paths
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> fish_add_path -g ~/.local/bin ~/.otherbin /usr/local/sbin
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# I want to append to the entire $PATH because this directory contains fallbacks
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> fish_add_path -aP /opt/fallback/bin
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# I want to add the bin/ directory of my current $PWD (say /home/nemo/)
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> fish_add_path -v bin/
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set fish_user_paths /home/nemo/bin /usr/bin /home/nemo/.local/bin
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# I have installed ruby via homebrew
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> fish_add_path /usr/local/opt/ruby/bin
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