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|
# Adapted from Nixpkgs.
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.command-not-found;
commandNotFound = pkgs.substituteAll {
name = "command-not-found";
dir = "bin";
src = ./command-not-found.pl;
isExecutable = true;
inherit (pkgs) perl;
inherit (cfg) dbPath;
perlFlags = concatStrings (map (path: "-I ${path}/lib/perl5/site_perl ")
[ pkgs.perlPackages.DBI pkgs.perlPackages.DBDSQLite pkgs.perlPackages.StringShellQuote ]);
};
shInit = commandNotFoundHandlerName: ''
# This function is called whenever a command is not found.
${commandNotFoundHandlerName}() {
local p=${commandNotFound}/bin/command-not-found
if [ -x $p -a -f ${cfg.dbPath} ]; then
# Run the helper program.
$p "$@"
else
echo "$1: command not found" >&2
return 127
fi
}
'';
in
{
options.programs.command-not-found = {
enable = mkEnableOption "command-not-found hook for interactive shell";
dbPath = mkOption {
default = "/nix/var/nix/profiles/per-user/root/channels/nixos/programs.sqlite" ;
description = ''
Absolute path to <filename>programs.sqlite</filename>. By
default this file will be provided by your channel
(nixexprs.tar.xz).
'';
type = types.path;
};
};
config = mkIf cfg.enable {
programs.bash.initExtra = shInit "command_not_found_handle";
programs.zsh.initExtra = shInit "command_not_found_handler";
home.packages = [ commandNotFound ];
};
}
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