1#!/usr/bin/env bash
2
3# This script lists all the optional command-line tools that diffoscope can use
4# (i.e. `diffoscope --list-tools`) but are missing from the Nix expression.
5
6diffoscope=$(nix-build --no-out-link -E 'with import ./. {}; diffoscope.override { enableBloat = true; }')/bin/diffoscope
7
8required=$($diffoscope --list-tools | \
9 grep '^External-Tools-Required:' | \
10 cut -d ' ' -f2- | \
11 tr -d ,)
12
13# Uber-hacky!
14pathScript=$(cat $diffoscope | grep PATH)
15
16export PATH=$(nix-build --no-out-link -A which)/bin
17eval "$pathScript"
18
19for tool in $required; do
20 if ! which $tool >/dev/null 2>&1; then
21 echo $tool
22 fi
23done | sort