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// given a set of versions and a range, create a "simplified" range
// that includes the same versions that the original range does
// If the original range is shorter than the simplified one, return that.
const satisfies = require('../functions/satisfies.js')
const compare = require('../functions/compare.js')
module.exports = (versions, range, options) => {
const set = []
let min = null
let prev = null
const v = versions.sort((a, b) => compare(a, b, options))
for (const version of v) {
const included = satisfies(version, range, options)
if (included) {
prev = version
if (!min)
min = version
} else {
if (prev) {
set.push([min, prev])
}
prev = null
min = null
}
}
if (min)
set.push([min, null])
const ranges = []
for (const [min, max] of set) {
if (min === max)
ranges.push(min)
else if (!max && min === v[0])
ranges.push('*')
else if (!max)
ranges.push(`>=${min}`)
else if (min === v[0])
ranges.push(`<=${max}`)
else
ranges.push(`${min} - ${max}`)
}
const simplified = ranges.join(' || ')
const original = typeof range.raw === 'string' ? range.raw : String(range)
return simplified.length < original.length ? simplified : range
}