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43 lines
1.2 KiB
43 lines
1.2 KiB
'use strict'; |
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var path = require('path'); |
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var trimRepeated = require('trim-repeated'); |
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var filenameReservedRegex = require('filename-reserved-regex'); |
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var stripOuter = require('strip-outer'); |
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// doesn't make sense to have longer filenames |
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var MAX_FILENAME_LENGTH = 100; |
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var reControlChars = /[\x00-\x1f\x80-\x9f]/g; |
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var reRelativePath = /^\.+/; |
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var fn = module.exports = function (str, opts) { |
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if (typeof str !== 'string') { |
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throw new TypeError('Expected a string'); |
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} |
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opts = opts || {}; |
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var replacement = opts.replacement || '!'; |
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if (filenameReservedRegex().test(replacement) && reControlChars.test(replacement)) { |
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throw new Error('Replacement string cannot contain reserved filename characters'); |
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} |
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str = str.replace(filenameReservedRegex(), replacement); |
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str = str.replace(reControlChars, replacement); |
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str = str.replace(reRelativePath, replacement); |
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if (replacement.length > 0) { |
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str = trimRepeated(str, replacement); |
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str = str.length > 1 ? stripOuter(str, replacement) : str; |
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} |
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str = str.slice(0, MAX_FILENAME_LENGTH); |
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return str; |
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}; |
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fn.path = function (pth, opts) { |
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pth = path.resolve(pth); |
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return path.join(path.dirname(pth), fn(path.basename(pth), opts)); |
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};
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