Ignore files containing given substring using glob.sync() - node.js

Question

I am trying to write a simple node script to resize large files (intended to be as a solution to an issue with large portrait oriented files). The main part of the code comes directly from gatsby docs.
module.exports = optimizeImages = () => {
const sharp = require(`sharp`)
const glob = require(`glob`)
const matches = glob.sync(`src/images/**/*!(optimized).{png,jpg,jpeg}`) // <-- There is the problem
console.log('matches:', matches)
const MAX_WIDTH = 1800
const QUALITY = 70
Promise.all(
matches.map(async match => {
const stream = sharp(match)
const info = await stream.metadata()
if (info.width < MAX_WIDTH) {
return
}
const optimizedName = match.replace(
/(\..+)$/,
(match, ext) => `-optimized${ext}`
)
await stream
.resize(MAX_WIDTH)
.jpeg({ quality: QUALITY })
.toFile(optimizedName)
.then(newFile => console.log(newFile))
.catch(error => console.log(error))
return true
})
)
}
The code seems to be working as intended, BUT I can't figure out how to unmatch the filenames which are allready optimized. Their names should end with '-optimized' suffix.
src/images/foo.jpg should be proccessed
src/images/bar-optimized.jpg should be ignored
I've tried to use the pattern src/images/**/*!(optimized).{png,jpg,jpeg}, but this does not work. I've tried using {ignore: 'src/images/**/*!(optimized)'}, but that does not work either.
Any help would be greatly appreciated.

Answer 1

It turns out that this works as intended:
const matches = glob.sync(`src/images/**/*.{png,jpg,jpeg}`, {
ignore: ['src/images/**/*-optimized.*']
})
Important clues were found in answers to this question.

Answer 2

Ran across this answer when I had a sync glob issue and realized you could take it a step further with D.R.Y. and build it as a re-usable glob with something like:
import path from 'path'
import glob from 'glob'
export const globFiles = (dirPath, match, exclusion = []) => {
const arr = exclusion.map(e => path.join(dirPath, e))
return glob.sync(path.join(dirPath, match), {
ignore: arr,
})
}
From the code above it would be called as:
const fileArray = globFiles('src/images/**/','*.{png,jpg,jpeg}', ['*-optimized.*'])