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