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