2022-04-24 18:23:49 +02:00
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emulate -L zsh
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# run-help is a zsh widget that can be bound to a key. It mainly looks up the
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# man page for the currently typed in command.
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#
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# Although run-help works for any command without requiring special support,
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# it can only deduce the right man page based solely on the name of the
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# command. Programs like Nix provide better integration with run-help by
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# helping zsh identify Nix subcommands and their corresponding man pages. This
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# is what this function does.
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#
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# To actually use run-help on zsh, place the following lines in your .zshrc:
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#
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# (( $+aliases[run-help] )) && unalias run-help
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# autoload -Uz run-help run-help-nix
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#
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# Then also assign run-help to any key of choice:
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#
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# bindkey '^[h' run-help
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if (( $# == 0 )); then
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man nix
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return
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fi
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while [[ "$#" != 0 && "$1" == -* ]]; do
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shift
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done
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case "$1" in
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flake)
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case "$2" in
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archive|check|clone|info|init|lock|metadata|new|prefetch|show|update)
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man "nix3-$1-$2" ;;
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*)
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man "nix3-$1" ;;
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esac ;;
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hash)
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case "$2" in
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file|path|to-base16|to-base32|to-base64|to-sri)
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man "nix3-$1-$2" ;;
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*)
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man "nix3-$1" ;;
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esac ;;
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key)
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case "$2" in
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convert-secret-to-public|generate-secret)
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man "nix3-$1-$2" ;;
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*)
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man "nix3-$1" ;;
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esac ;;
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nar)
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case "$2" in
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cat|dump-path|ls)
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man "nix3-$1-$2" ;;
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*)
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man "nix3-$1" ;;
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esac ;;
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profile)
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case "$2" in
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diff-closures|history|install|list|remove|rollback|upgrade|wipe-history)
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man "nix3-$1-$2" ;;
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*)
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man "nix3-$1" ;;
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esac ;;
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realisation)
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case "$2" in
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info)
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man "nix3-$1-$2" ;;
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*)
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man "nix3-$1" ;;
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esac ;;
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registry)
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case "$2" in
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add|list|pin|remove)
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man "nix3-$1-$2" ;;
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*)
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man "nix3-$1" ;;
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esac ;;
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store)
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case "$2" in
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add-file|add-path|cat|copy-sigs|delete|diff-closures|dump-path|gc|ls)
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;& # fallthrough
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2022-04-24 19:34:59 +02:00
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make-content-addressed|optimise|ping|prefetch-file|repair|sign|verify)
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2022-04-24 18:23:49 +02:00
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man "nix3-$1-$2" ;;
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*)
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man "nix3-$1" ;;
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esac ;;
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*)
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if man -w "nix3-$1" >/dev/null 2>&1; then
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man "nix3-$1"
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else
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man nix
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fi ;;
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esac
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return $?
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