add helper scripts for top-level deps

and write JSON with a newline

script/lint-scss

@@ -0,0 +1,3 @@
+#!/bin/bash
+set -e
+$(dirname $0)/npm-run stylelint --quiet --syntax scss **/*.scss

script/npm-run

@@ -0,0 +1,6 @@
+#!/bin/bash
+set -e
+pushd $(dirname $0) > /dev/null
+PATH="$(npm bin):$PATH"
+popd > /dev/null
+"$@"

script/npm-run-all

@@ -0,0 +1,3 @@
+#!/bin/bash
+set -e
+$(dirname $0)/npm-run npm-run-all --serial --silent "$@"

script/set-json

@@ -69,7 +69,7 @@ const tasks = args.map(filename => {
       ).then(() => json)
     })
     .then(json => JSON.stringify(json, null, "  "))
-    .then(str => fse.writeFile(filename, str, UTF))
+    .then(str => fse.writeFile(filename, `${str}\n`, UTF))
     .then(() => filename)
 })
 

script/test-docs

@@ -0,0 +1,3 @@
+#!/bin/bash
+set -e
+$(dirname $0)/npm-run ava --verbose $(dirname $0)/../tests/modules/test-*.js