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feat: max filename length option #50

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feat: max filename length option #50

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13 changes: 12 additions & 1 deletion index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@ commander
.option('-f, --format <format>', util.format('What format to download the ebook in (%s)', ALLOWED_FORMATS.join(', ')), 'epub')
.option('--auth-token <auth-token>', 'Optional: If you want to run headless, you can specify your authentication cookie from your browser (_simpleauth_sess)')
.option('-a, --all', 'Download all bundles')
.option('--max-filename-length <length>', 'Optional: If necessary, shortens the file name length to a certain length', -1)
.option('--debug', 'Enable debug logging', false)
.parse(process.argv)

Expand Down Expand Up @@ -369,7 +370,17 @@ function downloadBook (bundle, name, download, callback) {
return callback(error)
}

var fileName = util.format('%s%s', name.trim(), getExtension(normalizeFormat(download.name)))
var fileName = name.trim()
var fileExtension = getExtension(normalizeFormat(download.name))

if (commander.maxFilenameLength !== -1) {
if (fileName.length + fileExtension.length > commander.maxFilenameLength) {
const ellipsis = "... "
fileName = util.format('%s%s', fileName.substring(0, commander.maxFilenameLength-fileExtension.length-ellipsis.length), ellipsis)
}
}

var fileName = util.format('%s%s', fileName, fileExtension)
var filePath = path.resolve(downloadPath, sanitizeFilename(fileName))

checkSignatureMatch(filePath, download, (error, matches) => {
Expand Down
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