nix-config/pkgs/comma/comma
2021-05-16 00:03:59 +02:00

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#!/usr/bin/env bash
set -euo pipefail
print_err() {
printf "%s\n" "$1" >&2
}
usage() {
print_err "Usage: , <program> [argument]..."
}
find_program() {
local CANDIDATE
CANDIDATE="$(nix-locate --top-level --minimal --at-root --whole-name "/bin/$1")"
if [ "$(printf '%s\n' "$CANDIDATE" | wc -l)" -gt 1 ]; then
CANDIDATE="$(printf '%s' "$CANDIDATE" | fzf-tmux)"
fi
printf '%s' "$CANDIDATE"
}
if [ $# -lt 1 ]; then
usage
exit 1
fi
PROGRAM="$(find_program "$1")"
if [ -z "$PROGRAM" ]; then
print_err "No match found for $1"
exit 1
fi
nix shell "nixpkgs#$PROGRAM" -c "$@"