be5b0ef699
- Now we check for database existence in the script. - Nix ensures the script exists. - The 126 error code check and retry is leftover from an old version.
72 lines
1.6 KiB
Nix
72 lines
1.6 KiB
Nix
# This module provides suggestions of packages to install if the user
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# tries to run a missing command in Bash. This is implemented using a
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# SQLite database that maps program names to Nix package names (e.g.,
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# "pdflatex" is mapped to "tetex").
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{
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config,
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lib,
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pkgs,
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...
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}:
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let
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cfg = config.programs.command-not-found;
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commandNotFound = pkgs.replaceVarsWith {
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name = "command-not-found";
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dir = "bin";
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src = ./command-not-found.pl;
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isExecutable = true;
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replacements = {
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inherit (cfg) dbPath;
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perl = pkgs.perl.withPackages (p: [
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p.DBDSQLite
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p.StringShellQuote
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]);
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};
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};
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in
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{
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options.programs.command-not-found = {
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enable = lib.mkOption {
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type = lib.types.bool;
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default = false;
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description = ''
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Whether interactive shells should show which Nix package (if
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any) provides a missing command.
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'';
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};
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dbPath = lib.mkOption {
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default = "/nix/var/nix/profiles/per-user/root/channels/nixos/programs.sqlite";
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description = ''
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Absolute path to programs.sqlite.
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By default this file will be provided by your channel
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(nixexprs.tar.xz).
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'';
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type = lib.types.path;
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};
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};
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config = lib.mkIf cfg.enable {
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programs.bash.interactiveShellInit = ''
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command_not_found_handle() {
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'${commandNotFound}/bin/command-not-found' "$@"
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}
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'';
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programs.zsh.interactiveShellInit = ''
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command_not_found_handler() {
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'${commandNotFound}/bin/command-not-found' "$@"
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}
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'';
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environment.systemPackages = [ commandNotFound ];
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};
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}
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