// We also check for .DS_Store because any macOS user that has opened

// a folder with images will have this on disk. It won't get added

// to git anyway thanks to our .DS_Store.

// But if we don't make it a valid exception, it can become inconvenient

// to run this script locally.

return (

EXCEPTIONS.has(imagePath) ||

path.basename(imagePath) === '.DS_Store' ||

imagePath.split(path.sep).includes('early-access')

)

const { json, verbose, exit, excludeTranslations } = opts

const walkOptions = {

directories: false,

includeBasePath: true,

}

const sourceFiles = []

const roots = [

'content',

'data',

'tests',

'components',

'script',

'stylesheets',

'contributing',

'pages',

]

if (!excludeTranslations) {

roots.push('translations')

}

for (const root of roots) {

sourceFiles.push(

...walk(

root,

Object.assign(

{

globs: ['!**/*.+(png|jpe?g|csv|graphql|json|svg)'],

},

walkOptions

)

)

)

}

// Add exceptions

sourceFiles.push('CONTRIBUTING.md')

sourceFiles.push('README.md')

verbose && console.log(`${sourceFiles.length.toLocaleString()} source files found in total.`)

const allImages = new Set(

walk(

'assets',

Object.assign(

{

globs: ['!**/*.+(md)'],

},

walkOptions

)

).filter((filePath) => !filePath.endsWith('.md'))

)

verbose && console.log(`${allImages.size.toLocaleString()} images found in total.`)

for (const sourceFile of sourceFiles) {

const content = fs.readFileSync(sourceFile, 'utf-8')

for (const imagePath of allImages) {

const needle = imagePath.split(path.sep).slice(-2).join('/')

if (content.includes(needle) || isExceptionPath(imagePath)) {

allImages.delete(imagePath)

}

}

}

if (verbose && allImages.size) {

console.log('The following files are not mentioned anywhere in any source file')

}

if (json) {

console.log(JSON.stringify([...allImages], undefined, 2))

} else {

for (const imagePath of [...allImages].sort((a, b) => a.localeCompare(b))) {

console.log(imagePath)

}

}

if (verbose) {

console.log(`${allImages.size.toLocaleString()} orphans left.`)

const totalDiskSize = getTotalDiskSize(allImages)

console.log(`Total disk size of all of these: ${(totalDiskSize / 1024 / 1024).toFixed(1)}MB`)

}

if (exit) {

process.exit(allImages.size)

}

let sum = 0

for (const filePath of filePaths) {

sum += fs.statSync(filePath).size

}

return sum