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nixpkgs/pkgs/shells/fish/wrapper.nix

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wrapFish: add fish shell wrapper package This adds a wrapper for fish which allows creating shells pre-initialised with some completions, functions, and configuration scripts from given paths or from fish plugin packages (`pkgs.fishPlugins.*`). This is especially handy when one wants to try a plugin in an ephemeral shell. GitHub: see https://github.com/NixOS/nixpkgs/pull/107834#discussion_r550612519
2021-01-05 16:20:39 +00:00
{ lib, writeShellScriptBin, fish }:
with lib;
makeOverridable ({
completionDirs ? [],
functionDirs ? [],
confDirs ? [],
pluginPkgs ? []
}:
let
vendorDir = kind: plugin: "${plugin}/share/fish/vendor_${kind}.d";
complPath = completionDirs ++ map (vendorDir "completions") pluginPkgs;
funcPath = functionDirs ++ map (vendorDir "functions") pluginPkgs;
confPath = confDirs ++ map (vendorDir "conf") pluginPkgs;
in writeShellScriptBin "fish" ''
${fish}/bin/fish --init-command "
set --prepend fish_complete_path ${escapeShellArgs complPath}
set --prepend fish_function_path ${escapeShellArgs funcPath}
wrapFish: fix singleton expansion in shell init This fixes the expansion of the configuration path in the pathological case of a singleton, which would otherwise be used verbatim with the surrounding braces for lookup. GitHub: see https://github.com/NixOS/nixpkgs/pull/108491#pullrequestreview-590072603
2021-02-15 21:35:20 +00:00
set --local fish_conf_source_path ${escapeShellArgs confPath}
wrapFish: fix early variable expansion the bash script will retrieve the $var and cause the variable expand to empty add \ to prevent this, and let fish command to retrieve the variable
2021-10-28 06:23:58 +01:00
for c in \$fish_conf_source_path/*; source \$c; end
wrapFish: add fish shell wrapper package This adds a wrapper for fish which allows creating shells pre-initialised with some completions, functions, and configuration scripts from given paths or from fish plugin packages (`pkgs.fishPlugins.*`). This is especially handy when one wants to try a plugin in an ephemeral shell. GitHub: see https://github.com/NixOS/nixpkgs/pull/107834#discussion_r550612519
2021-01-05 16:20:39 +00:00
" "$@"
'')
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