mkups 0.1.0

Toolkit for creating, applying, and inspecting .ups patches
Documentation 
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#!/bin/sh
# Basic integration test for mkups
set -e
mkups=mkups
if [ -n "$1" ]; then
	mkups="$1"
fi

gethash() {
	sha256sum "$1" | awk '{ print $1 }'
}

t="$(mktemp -d)"
trap 'rm -rf "$t"' EXIT
echo "snowy landscape" > "$t/input"
echo "sleet snowscape" > "$t/patched"
$mkups create "$t/input" "$t/patched" > "$t/test.ups"

actual_hash="$(gethash "$t/test.ups")"
expected_hash="97b0aef051cc7f72df767f79a66d61482995bcb07a50a3f661f04ebcfa37f74e"
if [ "$actual_hash" != "$expected_hash" ]; then
	echo "mkups create: incorrect .ups file generated (got sha256=$actual_hash):"
	xxd "$t/test.ups"
	exit 1
fi
echo "Create OK"

$mkups apply "$t/input" "$t/test.ups" > "$t/patched2"
if [ "$(gethash "$t/patched")" != "$(gethash "$t/patched2")" ]; then
	echo "mkups apply: incorrect output file generated:"
	xxd "$t/patched2"
	exit 1
fi
echo "Apply OK"

$mkups show "$t/test.ups" > /dev/null
echo "Show OK"
echo "GIANT DUCK passed"