nix run -c: complete command names and arguments

nix-community / nix-zsh-completions

ZSH Completions for Nix

BSD 3-Clause "New" or "Revised" License

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nix run -c: complete command names and arguments #31

Closed xzfc closed 4 years ago

xzfc commented 4 years ago

Complete command names from programs.sqlite database.

$ nix run nixpkgs.cowsay -c ⭾
Package commands
cowsay                              cowthink
All commands
\[                                  mkfs.ext4
2to3                                mkfs.fat
...

Complete command arguments. E.g. nix run nixpkgs.cowsay -c cowsay -⭾ will show you cowsay-related completions.
Small fix: use _command_names -e instead of _command_names. This will filter out shell aliases, shell functions, etc.

olejorgenb commented 4 years ago

Very cool! I've tested and can't see any obvious problems, but I'll let @hedning have a look also before merging.

In the future it would be nice to have an option to fallback on a programs.sqlite from a channel while working on a nixpkgs checkout (neither the program names or package structure change that often). Probably using a zstyle and some heuristic to detect if the package set is nixpkgs.