Add a zsh completion script #4128
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Make nix output completions in the form `completion\tdescription`. This can't be used by bash (afaik), but other shells like zsh or fish can display it along the completion choices
Based on @clhodapp's suggestion in nix-community/nix-zsh-completions#32 (comment) and adapted to use the description of the completions
edolstra
reviewed
Oct 9, 2020
| @@ -17,8 +17,19 @@ void Args::addFlag(Flag && flag_) | |||
| if (flag->shortName) shortFlags[flag->shortName] = flag; | |||
| } | |||
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| void Completions::add(std::string completion, std::string description) | |||
| { | |||
| insert(Completion{ | |||
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Maybe add an assert here to check that description doesn't contain a newline.
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Could you add a local.mk file like: so it's picked up by zsh fpath? |
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Extends the completion mechanism to also output the descriptions, and add a zsh completion script taking advantage of this.
This is a breaking change for the existing bash completion script (which can cause some minor issues if one updates the Nix client but not the script), but afaik it hasn't made it to any release yet, so it shouldn't be a major issue.
The current implementation also has an issue if the word to complete has a tab in it, but that sounds unlikely-enough to happen in practice