134 lines
4 KiB
Text
134 lines
4 KiB
Text
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#!/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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, versions = []
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, range = []
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, gt = []
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, lt = []
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, eq = []
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, inc = null
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, version = require("../package.json").version
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, loose = false
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, identifier = undefined
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, semver = require("../semver")
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, reverse = false
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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 i = a.indexOf('=')
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if (i !== -1) {
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a = a.slice(0, i)
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argv.unshift(a.slice(i + 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 "-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 "-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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versions = versions.filter(function (v) {
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return semver.valid(v, loose)
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})
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if (!versions.length) return fail()
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if (inc && (versions.length !== 1 || range.length))
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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], loose)
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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, loose)
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}).map(function (v) {
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return semver.clean(v, loose)
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}).map(function (v) {
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return inc ? semver.inc(v, inc, loose, 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 http://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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,"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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