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174 lines
4.6 KiB
174 lines
4.6 KiB
#!/usr/bin/env node
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// Standalone semver comparison program.
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// Exits successfully and prints matching version(s) if
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// any supplied version is valid and passes all tests.
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var argv = process.argv.slice(2)
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var versions = []
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var range = []
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var inc = null
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var version = require('../package.json').version
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var loose = false
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var includePrerelease = false
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var coerce = false
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var rtl = false
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var identifier
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var semver = require('../semver')
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var reverse = false
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var options = {}
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main()
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function main () {
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if (!argv.length) return help()
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while (argv.length) {
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var a = argv.shift()
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var indexOfEqualSign = a.indexOf('=')
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if (indexOfEqualSign !== -1) {
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a = a.slice(0, indexOfEqualSign)
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argv.unshift(a.slice(indexOfEqualSign + 1))
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}
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switch (a) {
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case '-rv': case '-rev': case '--rev': case '--reverse':
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reverse = true
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break
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case '-l': case '--loose':
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loose = true
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break
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case '-p': case '--include-prerelease':
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includePrerelease = true
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break
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case '-v': case '--version':
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versions.push(argv.shift())
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break
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case '-i': case '--inc': case '--increment':
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switch (argv[0]) {
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case 'major': case 'minor': case 'patch': case 'prerelease':
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case 'premajor': case 'preminor': case 'prepatch':
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inc = argv.shift()
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break
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default:
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inc = 'patch'
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break
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}
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break
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case '--preid':
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identifier = argv.shift()
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break
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case '-r': case '--range':
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range.push(argv.shift())
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break
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case '-c': case '--coerce':
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coerce = true
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break
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case '--rtl':
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rtl = true
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break
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case '--ltr':
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rtl = false
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break
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case '-h': case '--help': case '-?':
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return help()
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default:
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versions.push(a)
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break
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}
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}
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var options = { loose: loose, includePrerelease: includePrerelease, rtl: rtl }
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versions = versions.map(function (v) {
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return coerce ? (semver.coerce(v, options) || { version: v }).version : v
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}).filter(function (v) {
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return semver.valid(v)
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})
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if (!versions.length) return fail()
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if (inc && (versions.length !== 1 || range.length)) { return failInc() }
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for (var i = 0, l = range.length; i < l; i++) {
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versions = versions.filter(function (v) {
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return semver.satisfies(v, range[i], options)
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})
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if (!versions.length) return fail()
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}
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return success(versions)
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}
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function failInc () {
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console.error('--inc can only be used on a single version with no range')
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fail()
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}
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function fail () { process.exit(1) }
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function success () {
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var compare = reverse ? 'rcompare' : 'compare'
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versions.sort(function (a, b) {
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return semver[compare](a, b, options)
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}).map(function (v) {
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return semver.clean(v, options)
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}).map(function (v) {
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return inc ? semver.inc(v, inc, options, identifier) : v
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}).forEach(function (v, i, _) { console.log(v) })
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}
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function help () {
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console.log(['SemVer ' + version,
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'',
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'A JavaScript implementation of the https://semver.org/ specification',
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'Copyright Isaac Z. Schlueter',
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'',
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'Usage: semver [options] <version> [<version> [...]]',
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'Prints valid versions sorted by SemVer precedence',
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'',
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'Options:',
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'-r --range <range>',
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' Print versions that match the specified range.',
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'',
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'-i --increment [<level>]',
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' Increment a version by the specified level. Level can',
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' be one of: major, minor, patch, premajor, preminor,',
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" prepatch, or prerelease. Default level is 'patch'.",
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' Only one version may be specified.',
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'',
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'--preid <identifier>',
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' Identifier to be used to prefix premajor, preminor,',
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' prepatch or prerelease version increments.',
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'',
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'-l --loose',
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' Interpret versions and ranges loosely',
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'',
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'-p --include-prerelease',
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' Always include prerelease versions in range matching',
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'',
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'-c --coerce',
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' Coerce a string into SemVer if possible',
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' (does not imply --loose)',
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'',
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'--rtl',
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' Coerce version strings right to left',
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'',
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'--ltr',
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' Coerce version strings left to right (default)',
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'',
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'Program exits successfully if any valid version satisfies',
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'all supplied ranges, and prints all satisfying versions.',
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'',
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'If no satisfying versions are found, then exits failure.',
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'',
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'Versions are printed in ascending order, so supplying',
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'multiple versions to the utility will just sort them.'
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].join('\n'))
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}
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