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25 changes: 23 additions & 2 deletions lib/index.js
Original file line number Diff line number Diff line change
Expand Up @@ -112,8 +112,29 @@ function applyArguments (patterns, args) {
* @returns {string[]} Parsed patterns.
*/
function parsePatterns (patternOrPatterns, args) {
const patterns = toArray(patternOrPatterns)
const hasPlaceholder = patterns.some(pattern => ARGS_PATTERN.test(pattern))
let patterns = toArray(patternOrPatterns)

const isNPM = process.env.npm_config_user_agent && process.env.npm_config_user_agent.startsWith('npm')

if (!isNPM) {
// yarn | pnpm
patterns = patterns.map((pattern) => {
const match = ARGS_PATTERN.exec(pattern)

Check failure

Code scanning / CodeQL

Polynomial regular expression used on uncontrolled data

This [regular expression](1) that depends on [library input](2) may run slow on strings starting with '{{%' and with many repetitions of '00'.

if (!match) {
return pattern
}

const patternList = pattern.split(' ')
const doubleDashIndex = patternList.findIndex((item) => item === '--')
patternList.splice(doubleDashIndex, 1)
pattern = patternList.join(' ')

return pattern
})
}

const hasPlaceholder = patterns.some((pattern) => ARGS_PATTERN.test(pattern))

return hasPlaceholder ? applyArguments(patterns, args) : patterns
}
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