diff options
Diffstat (limited to 'modules/by-name/ni/nix-index')
| -rw-r--r-- | modules/by-name/ni/nix-index/command_not_found.fish | 111 | ||||
| -rw-r--r-- | modules/by-name/ni/nix-index/command_not_found.zsh | 74 | ||||
| -rw-r--r-- | modules/by-name/ni/nix-index/module.nix | 48 |
3 files changed, 233 insertions, 0 deletions
diff --git a/modules/by-name/ni/nix-index/command_not_found.fish b/modules/by-name/ni/nix-index/command_not_found.fish new file mode 100644 index 00000000..bbdb2230 --- /dev/null +++ b/modules/by-name/ni/nix-index/command_not_found.fish @@ -0,0 +1,111 @@ +#!/usr/bin/env fish + +# nixos-config - My current NixOS configuration +# +# Copyright (C) 2025 Benedikt Peetz <benedikt.peetz@b-peetz.de> +# SPDX-License-Identifier: GPL-3.0-or-later +# +# This file is part of my nixos-config. +# +# You should have received a copy of the License along with this program. +# If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>. + +# This was taken from the +# `${pkgs.nix-index}/etc/profile.d/command-not-found.sh` file on 2024-02-28 + +function _log + printf $argv >&2 +end + +function _bail + __fish_default_command_not_found_handler $argv + return "$status" +end + +function _common_prefix + set --function prefix + + for str in $argv + set position 1 + for c in (string split '' "$str") + if test -z $prefix[$position] + set prefix[$position] "$c" + else if test $prefix[$position] != "$c" + if test $position = 1 + # The first letter of the prefix mis-matched. + # As such there is no shared prefix, and we can simple bail early. + echo "" + return + else + set prefix $prefix[1..(math $position - 1)] + end + break + end + + set position (math $position + 1) + end + end + + echo "$(string join "" $prefix)" +end + +function fish_command_not_found + # Only run if it's an interactive shell + if not status is-interactive + return (_bail $argv) + end + + # The nixpkgs flake should always be available on NixOS + set --local toplevel nixpkgs + set --local cmd "$argv[1]" + + set --local attrs "$(nix-locate --minimal --no-group --type x --type s --whole-name --at-root "/bin/$cmd")" + + if test -n "$attrs" + set --function len "$(echo "$attrs" | count)" + else + set --function len 0 + end + + switch "$len" + case 0 + case 1 or '*' + _log "The program '%s' is currently not installed.\n" "$cmd" + end + + switch "$len" + case 0 + return (_bail $argv) + case 1 + # If only one package provides this, then we can invoke it + # without asking the user. + + # These will not return 127 if they worked correctly. + + _log "A shell will be opened with it.\n" + + if nix build "$toplevel#$attrs" --no-link + nix shell "$toplevel#$attrs" + return "$status" + else + _log "Failed to build: '%s#%s'\n" "$toplevel" "$attrs" + return (_bail $argv) + end + case '*' + _log "It is provided by several packages. You can run it load it with:\n" + + set --local counter 0 + set --local attrs $(echo $attrs) + for attr in $attrs + _log "%3s)" "$counter" + _log " nix shell %s#%s\n" "$toplevel" "$attr"; + + set counter "$(math "$counter" + 1)" + end + + commandline "nix shell $toplevel#$(_common_prefix $attrs)" + end + + # command not found should always exit with 127 + return 127 +end diff --git a/modules/by-name/ni/nix-index/command_not_found.zsh b/modules/by-name/ni/nix-index/command_not_found.zsh new file mode 100644 index 00000000..579f9db4 --- /dev/null +++ b/modules/by-name/ni/nix-index/command_not_found.zsh @@ -0,0 +1,74 @@ +#!/usr/bin/env dash + +# nixos-config - My current NixOS configuration +# +# Copyright (C) 2025 Benedikt Peetz <benedikt.peetz@b-peetz.de> +# SPDX-License-Identifier: GPL-3.0-or-later +# +# This file is part of my nixos-config. +# +# You should have received a copy of the License along with this program. +# If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>. + +# This was taken from the +# `${pkgs.nix-index}/etc/profile.d/command-not-found.sh` file on 2024-02-28 + +# for bash 4 +# this will be called when a command is entered +# but not found in the user’s path + environment +command_not_found_handle() { + # taken from http://www.linuxjournal.com/content/bash-command-not-found + # - do not run when inside Midnight Commander or within a Pipe + if [ -n "${MC_SID-}" ] || ! [ -t 1 ]; then + >&2 echo "$1: command not found" + return 127 + fi + + toplevel=nixpkgs # nixpkgs should always be available even in NixOS + cmd="$1" + attrs=$(nix-locate --minimal --no-group --type x --type s --whole-name --at-root "/bin/$cmd") + len=$(if [ -n "$attrs" ]; then echo "$attrs" | wc -l; else echo 0; fi) + + case "$len" in + 0) + printf "%s: command not found\n" "$cmd" >&2 + ;; + 1) + # If only one package provides this, then we can invoke it + # without asking the user. + + # These will not return 127 if they worked correctly. + + >&2 cat <<EOF +The program '$cmd' is currently not installed. A shell will be opened +with it. +EOF + if nix build "$toplevel#$attrs" --no-link; then + nix shell "$toplevel#$attrs" + return $? + else + >&2 cat <<EOF +Failed to build: '$toplevel#$attrs' +$cmd: command not found +EOF + fi + ;; + *) + >&2 cat <<EOF +The program '$cmd' is currently not installed. It is provided by +several packages. You can run it once with: +EOF + echo "$attrs" | awk --assign=toplevel="$toplevel" 'BEGIN{counter=0} {printf("%3s)", counter); printf(" nix shell %s#%s\n", toplevel, $1); counter+=1}' + ;; + esac + + return 127 # command not found should always exit with 127 +} + +# for zsh... +# we just pass it to the bash handler above +# apparently they work identically +command_not_found_handler() { + command_not_found_handle "$@" + return $? +} diff --git a/modules/by-name/ni/nix-index/module.nix b/modules/by-name/ni/nix-index/module.nix new file mode 100644 index 00000000..72be6b52 --- /dev/null +++ b/modules/by-name/ni/nix-index/module.nix @@ -0,0 +1,48 @@ +# nixos-config - My current NixOS configuration +# +# Copyright (C) 2025 Benedikt Peetz <benedikt.peetz@b-peetz.de> +# SPDX-License-Identifier: GPL-3.0-or-later +# +# This file is part of my nixos-config. +# +# You should have received a copy of the License along with this program. +# If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>. +{ + config, + lib, + modules, + ... +}: let + cfg = config.soispha.programs.nix-index; +in { + options.soispha.programs.nix-index = { + enable = lib.mkEnableOption "nix-index"; + }; + + config = lib.mkIf cfg.enable { + soispha.programs = { + zsh.integrations.nix-index = ./command_not_found.zsh; + fish.integrations.nix-index = ./command_not_found.fish; + }; + + home-manager.users.soispha = { + imports = [ + modules.nix-index-database.homeModules.nix-index + ]; + + programs.nix-index = { + enable = true; + symlinkToCacheHome = true; + + # Handled by myself (and the script is overridden) + enableBashIntegration = false; + enableZshIntegration = false; + enableFishIntegration = false; + }; + + programs.nix-index-database = { + comma.enable = false; + }; + }; + }; +} |