exports = module.exports = SemVer var debug /* istanbul ignore next */ if (typeof process === 'object' && process.env && process.env.NODE_DEBUG && /\bsemver\b/i.test(process.env.NODE_DEBUG)) { debug = function () { var args = Array.prototype.slice.call(arguments, 0) args.unshift('SEMVER') console.log.apply(console, args) } } else { debug = function () {} } // Note: this is the semver.org version of the spec that it implements // Not necessarily the package version of this code. exports.SEMVER_SPEC_VERSION = '2.0.0' var MAX_LENGTH = 256 var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || /* istanbul ignore next */ 9007199254740991 // Max safe segment length for coercion. var MAX_SAFE_COMPONENT_LENGTH = 16 // The actual regexps go on exports.re var re = exports.re = [] var src = exports.src = [] var t = exports.tokens = {} var R = 0 function tok (n) { t[n] = R++ } // The following Regular Expressions can be used for tokenizing, // validating, and parsing SemVer version strings. // ## Numeric Identifier // A single `0`, or a non-zero digit followed by zero or more digits. tok('NUMERICIDENTIFIER') src[t.NUMERICIDENTIFIER] = '0|[1-9]\\d*' tok('NUMERICIDENTIFIERLOOSE') src[t.NUMERICIDENTIFIERLOOSE] = '[0-9]+' // ## Non-numeric Identifier // Zero or more digits, followed by a letter or hyphen, and then zero or // more letters, digits, or hyphens. tok('NONNUMERICIDENTIFIER') src[t.NONNUMERICIDENTIFIER] = '\\d*[a-zA-Z-][a-zA-Z0-9-]*' // ## Main Version // Three dot-separated numeric identifiers. tok('MAINVERSION') src[t.MAINVERSION] = '(' + src[t.NUMERICIDENTIFIER] + ')\\.' + '(' + src[t.NUMERICIDENTIFIER] + ')\\.' + '(' + src[t.NUMERICIDENTIFIER] + ')' tok('MAINVERSIONLOOSE') src[t.MAINVERSIONLOOSE] = '(' + src[t.NUMERICIDENTIFIERLOOSE] + ')\\.' + '(' + src[t.NUMERICIDENTIFIERLOOSE] + ')\\.' + '(' + src[t.NUMERICIDENTIFIERLOOSE] + ')' // ## Pre-release Version Identifier // A numeric identifier, or a non-numeric identifier. tok('PRERELEASEIDENTIFIER') src[t.PRERELEASEIDENTIFIER] = '(?:' + src[t.NUMERICIDENTIFIER] + '|' + src[t.NONNUMERICIDENTIFIER] + ')' tok('PRERELEASEIDENTIFIERLOOSE') src[t.PRERELEASEIDENTIFIERLOOSE] = '(?:' + src[t.NUMERICIDENTIFIERLOOSE] + '|' + src[t.NONNUMERICIDENTIFIER] + ')' // ## Pre-release Version // Hyphen, followed by one or more dot-separated pre-release version // identifiers. tok('PRERELEASE') src[t.PRERELEASE] = '(?:-(' + src[t.PRERELEASEIDENTIFIER] + '(?:\\.' + src[t.PRERELEASEIDENTIFIER] + ')*))' tok('PRERELEASELOOSE') src[t.PRERELEASELOOSE] = '(?:-?(' + src[t.PRERELEASEIDENTIFIERLOOSE] + '(?:\\.' + src[t.PRERELEASEIDENTIFIERLOOSE] + ')*))' // ## Build Metadata Identifier // Any combination of digits, letters, or hyphens. tok('BUILDIDENTIFIER') src[t.BUILDIDENTIFIER] = '[0-9A-Za-z-]+' // ## Build Metadata // Plus sign, followed by one or more period-separated build metadata // identifiers. tok('BUILD') src[t.BUILD] = '(?:\\+(' + src[t.BUILDIDENTIFIER] + '(?:\\.' + src[t.BUILDIDENTIFIER] + ')*))' // ## Full Version String // A main version, followed optionally by a pre-release version and // build metadata. // Note that the only major, minor, patch, and pre-release sections of // the version string are capturing groups. The build metadata is not a // capturing group, because it should not ever be used in version // comparison. tok('FULL') tok('FULLPLAIN') src[t.FULLPLAIN] = 'v?' + src[t.MAINVERSION] + src[t.PRERELEASE] + '?' + src[t.BUILD] + '?' src[t.FULL] = '^' + src[t.FULLPLAIN] + '$' // like full, but allows v1.2.3 and =1.2.3, which people do sometimes. // also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty // common in the npm registry. tok('LOOSEPLAIN') src[t.LOOSEPLAIN] = '[v=\\s]*' + src[t.MAINVERSIONLOOSE] + src[t.PRERELEASELOOSE] + '?' + src[t.BUILD] + '?' tok('LOOSE') src[t.LOOSE] = '^' + src[t.LOOSEPLAIN] + '$' tok('GTLT') src[t.GTLT] = '((?:<|>)?=?)' // Something like "2.*" or "1.2.x". // Note that "x.x" is a valid xRange identifer, meaning "any version" // Only the first item is strictly required. tok('XRANGEIDENTIFIERLOOSE') src[t.XRANGEIDENTIFIERLOOSE] = src[t.NUMERICIDENTIFIERLOOSE] + '|x|X|\\*' tok('XRANGEIDENTIFIER') src[t.XRANGEIDENTIFIER] = src[t.NUMERICIDENTIFIER] + '|x|X|\\*' tok('XRANGEPLAIN') src[t.XRANGEPLAIN] = '[v=\\s]*(' + src[t.XRANGEIDENTIFIER] + ')' + '(?:\\.(' + src[t.XRANGEIDENTIFIER] + ')' + '(?:\\.(' + src[t.XRANGEIDENTIFIER] + ')' + '(?:' + src[t.PRERELEASE] + ')?' + src[t.BUILD] + '?' + ')?)?' tok('XRANGEPLAINLOOSE') src[t.XRANGEPLAINLOOSE] = '[v=\\s]*(' + src[t.XRANGEIDENTIFIERLOOSE] + ')' + '(?:\\.(' + src[t.XRANGEIDENTIFIERLOOSE] + ')' + '(?:\\.(' + src[t.XRANGEIDENTIFIERLOOSE] + ')' + '(?:' + src[t.PRERELEASELOOSE] + ')?' + src[t.BUILD] + '?' + ')?)?' tok('XRANGE') src[t.XRANGE] = '^' + src[t.GTLT] + '\\s*' + src[t.XRANGEPLAIN] + '$' tok('XRANGELOOSE') src[t.XRANGELOOSE] = '^' + src[t.GTLT] + '\\s*' + src[t.XRANGEPLAINLOOSE] + '$' // Coercion. // Extract anything that could conceivably be a part of a valid semver tok('COERCE') src[t.COERCE] = '(^|[^\\d])' + '(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '})' + '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' + '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' + '(?:$|[^\\d])' tok('COERCERTL') re[t.COERCERTL] = new RegExp(src[t.COERCE], 'g') // Tilde ranges. // Meaning is "reasonably at or greater than" tok('LONETILDE') src[t.LONETILDE] = '(?:~>?)' tok('TILDETRIM') src[t.TILDETRIM] = '(\\s*)' + src[t.LONETILDE] + '\\s+' re[t.TILDETRIM] = new RegExp(src[t.TILDETRIM], 'g') var tildeTrimReplace = '$1~' tok('TILDE') src[t.TILDE] = '^' + src[t.LONETILDE] + src[t.XRANGEPLAIN] + '$' tok('TILDELOOSE') src[t.TILDELOOSE] = '^' + src[t.LONETILDE] + src[t.XRANGEPLAINLOOSE] + '$' // Caret ranges. // Meaning is "at least and backwards compatible with" tok('LONECARET') src[t.LONECARET] = '(?:\\^)' tok('CARETTRIM') src[t.CARETTRIM] = '(\\s*)' + src[t.LONECARET] + '\\s+' re[t.CARETTRIM] = new RegExp(src[t.CARETTRIM], 'g') var caretTrimReplace = '$1^' tok('CARET') src[t.CARET] = '^' + src[t.LONECARET] + src[t.XRANGEPLAIN] + '$' tok('CARETLOOSE') src[t.CARETLOOSE] = '^' + src[t.LONECARET] + src[t.XRANGEPLAINLOOSE] + '$' // A simple gt/lt/eq thing, or just "" to indicate "any version" tok('COMPARATORLOOSE') src[t.COMPARATORLOOSE] = '^' + src[t.GTLT] + '\\s*(' + src[t.LOOSEPLAIN] + ')$|^$' tok('COMPARATOR') src[t.COMPARATOR] = '^' + src[t.GTLT] + '\\s*(' + src[t.FULLPLAIN] + ')$|^$' // An expression to strip any whitespace between the gtlt and the thing // it modifies, so that `> 1.2.3` ==> `>1.2.3` tok('COMPARATORTRIM') src[t.COMPARATORTRIM] = '(\\s*)' + src[t.GTLT] + '\\s*(' + src[t.LOOSEPLAIN] + '|' + src[t.XRANGEPLAIN] + ')' // this one has to use the /g flag re[t.COMPARATORTRIM] = new RegExp(src[t.COMPARATORTRIM], 'g') var comparatorTrimReplace = '$1$2$3' // Something like `1.2.3 - 1.2.4` // Note that these all use the loose form, because they'll be // checked against either the strict or loose comparator form // later. tok('HYPHENRANGE') src[t.HYPHENRANGE] = '^\\s*(' + src[t.XRANGEPLAIN] + ')' + '\\s+-\\s+' + '(' + src[t.XRANGEPLAIN] + ')' + '\\s*$' tok('HYPHENRANGELOOSE') src[t.HYPHENRANGELOOSE] = '^\\s*(' + src[t.XRANGEPLAINLOOSE] + ')' + '\\s+-\\s+' + '(' + src[t.XRANGEPLAINLOOSE] + ')' + '\\s*$' // Star ranges basically just allow anything at all. tok('STAR') src[t.STAR] = '(<|>)?=?\\s*\\*' // Compile to actual regexp objects. // All are flag-free, unless they were created above with a flag. for (var i = 0; i < R; i++) { debug(i, src[i]) if (!re[i]) { re[i] = new RegExp(src[i]) } } exports.parse = parse function parse (version, options) { if (!options || typeof options !== 'object') { options = { loose: !!options, includePrerelease: false } } if (version instanceof SemVer) { return version } if (typeof version !== 'string') { return null } if (version.length > MAX_LENGTH) { return null } var r = options.loose ? re[t.LOOSE] : re[t.FULL] if (!r.test(version)) { return null } try { return new SemVer(version, options) } catch (er) { return null } } exports.valid = valid function valid (version, options) { var v = parse(version, options) return v ? v.version : null } exports.clean = clean function clean (version, options) { var s = parse(version.trim().replace(/^[=v]+/, ''), options) return s ? s.version : null } exports.SemVer = SemVer function SemVer (version, options) { if (!options || typeof options !== 'object') { options = { loose: !!options, includePrerelease: false } } if (version instanceof SemVer) { if (version.loose === options.loose) { return version } else { version = version.version } } else if (typeof version !== 'string') { throw new TypeError('Invalid Version: ' + version) } if (version.length > MAX_LENGTH) { throw new TypeError('version is longer than ' + MAX_LENGTH + ' characters') } if (!(this instanceof SemVer)) { return new SemVer(version, options) } debug('SemVer', version, options) this.options = options this.loose = !!options.loose var m = version.trim().match(options.loose ? re[t.LOOSE] : re[t.FULL]) if (!m) { throw new TypeError('Invalid Version: ' + version) } this.raw = version // these are actually numbers this.major = +m[1] this.minor = +m[2] this.patch = +m[3] if (this.major > MAX_SAFE_INTEGER || this.major < 0) { throw new TypeError('Invalid major version') } if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) { throw new TypeError('Invalid minor version') } if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) { throw new TypeError('Invalid patch version') } // numberify any prerelease numeric ids if (!m[4]) { this.prerelease = [] } else { this.prerelease = m[4].split('.').map(function (id) { if (/^[0-9]+$/.test(id)) { var num = +id if (num >= 0 && num < MAX_SAFE_INTEGER) { return num } } return id }) } this.build = m[5] ? m[5].split('.') : [] this.format() } SemVer.prototype.format = function () { this.version = this.major + '.' + this.minor + '.' + this.patch if (this.prerelease.length) { this.version += '-' + this.prerelease.join('.') } return this.version } SemVer.prototype.toString = function () { return this.version } SemVer.prototype.compare = function (other) { debug('SemVer.compare', this.version, this.options, other) if (!(other instanceof SemVer)) { other = new SemVer(other, this.options) } return this.compareMain(other) || this.comparePre(other) } SemVer.prototype.compareMain = function (other) { if (!(other instanceof SemVer)) { other = new SemVer(other, this.options) } return compareIdentifiers(this.major, other.major) || compareIdentifiers(this.minor, other.minor) || compareIdentifiers(this.patch, other.patch) } SemVer.prototype.comparePre = function (other) { if (!(other instanceof SemVer)) { other = new SemVer(other, this.options) } // NOT having a prerelease is > having one if (this.prerelease.length && !other.prerelease.length) { return -1 } else if (!this.prerelease.length && other.prerelease.length) { return 1 } else if (!this.prerelease.length && !other.prerelease.length) { return 0 } var i = 0 do { var a = this.prerelease[i] var b = other.prerelease[i] debug('prerelease compare', i, a, b) if (a === undefined && b === undefined) { return 0 } else if (b === undefined) { return 1 } else if (a === undefined) { return -1 } else if (a === b) { continue } else { return compareIdentifiers(a, b) } } while (++i) } SemVer.prototype.compareBuild = function (other) { if (!(other instanceof SemVer)) { other = new SemVer(other, this.options) } var i = 0 do { var a = this.build[i] var b = other.build[i] debug('prerelease compare', i, a, b) if (a === undefined && b === undefined) { return 0 } else if (b === undefined) { return 1 } else if (a === undefined) { return -1 } else if (a === b) { continue } else { return compareIdentifiers(a, b) } } while (++i) } // preminor will bump the version up to the next minor release, and immediately // down to pre-release. premajor and prepatch work the same way. SemVer.prototype.inc = function (release, identifier) { switch (release) { case 'premajor': this.prerelease.length = 0 this.patch = 0 this.minor = 0 this.major++ this.inc('pre', identifier) break case 'preminor': this.prerelease.length = 0 this.patch = 0 this.minor++ this.inc('pre', identifier) break case 'prepatch': // If this is already a prerelease, it will bump to the next version // drop any prereleases that might already exist, since they are not // relevant at this point. this.prerelease.length = 0 this.inc('patch', identifier) this.inc('pre', identifier) break // If the input is a non-prerelease version, this acts the same as // prepatch. case 'prerelease': if (this.prerelease.length === 0) { this.inc('patch', identifier) } this.inc('pre', identifier) break case 'major': // If this is a pre-major version, bump up to the same major version. // Otherwise increment major. // 1.0.0-5 bumps to 1.0.0 // 1.1.0 bumps to 2.0.0 if (this.minor !== 0 || this.patch !== 0 || this.prerelease.length === 0) { this.major++ } this.minor = 0 this.patch = 0 this.prerelease = [] break case 'minor': // If this is a pre-minor version, bump up to the same minor version. // Otherwise increment minor. // 1.2.0-5 bumps to 1.2.0 // 1.2.1 bumps to 1.3.0 if (this.patch !== 0 || this.prerelease.length === 0) { this.minor++ } this.patch = 0 this.prerelease = [] break case 'patch': // If this is not a pre-release version, it will increment the patch. // If it is a pre-release it will bump up to the same patch version. // 1.2.0-5 patches to 1.2.0 // 1.2.0 patches to 1.2.1 if (this.prerelease.length === 0) { this.patch++ } this.prerelease = [] break // This probably shouldn't be used publicly. // 1.0.0 "pre" would become 1.0.0-0 which is the wrong direction. case 'pre': if (this.prerelease.length === 0) { this.prerelease = [0] } else { var i = this.prerelease.length while (--i >= 0) { if (typeof this.prerelease[i] === 'number') { this.prerelease[i]++ i = -2 } } if (i === -1) { // didn't increment anything this.prerelease.push(0) } } if (identifier) { // 1.2.0-beta.1 bumps to 1.2.0-beta.2, // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0 if (this.prerelease[0] === identifier) { if (isNaN(this.prerelease[1])) { this.prerelease = [identifier, 0] } } else { this.prerelease = [identifier, 0] } } break default: throw new Error('invalid increment argument: ' + release) } this.format() this.raw = this.version return this } exports.inc = inc function inc (version, release, loose, identifier) { if (typeof (loose) === 'string') { identifier = loose loose = undefined } try { return new SemVer(version, loose).inc(release, identifier).version } catch (er) { return null } } exports.diff = diff function diff (version1, version2) { if (eq(version1, version2)) { return null } else { var v1 = parse(version1) var v2 = parse(version2) var prefix = '' if (v1.prerelease.length || v2.prerelease.length) { prefix = 'pre' var defaultResult = 'prerelease' } for (var key in v1) { if (key === 'major' || key === 'minor' || key === 'patch') { if (v1[key] !== v2[key]) { return prefix + key } } } return defaultResult // may be undefined } } exports.compareIdentifiers = compareIdentifiers var numeric = /^[0-9]+$/ function compareIdentifiers (a, b) { var anum = numeric.test(a) var bnum = numeric.test(b) if (anum && bnum) { a = +a b = +b } return a === b ? 0 : (anum && !bnum) ? -1 : (bnum && !anum) ? 1 : a < b ? -1 : 1 } exports.rcompareIdentifiers = rcompareIdentifiers function rcompareIdentifiers (a, b) { return compareIdentifiers(b, a) } exports.major = major function major (a, loose) { return new SemVer(a, loose).major } exports.minor = minor function minor (a, loose) { return new SemVer(a, loose).minor } exports.patch = patch function patch (a, loose) { return new SemVer(a, loose).patch } exports.compare = compare function compare (a, b, loose) { return new SemVer(a, loose).compare(new SemVer(b, loose)) } exports.compareLoose = compareLoose function compareLoose (a, b) { return compare(a, b, true) } exports.compareBuild = compareBuild function compareBuild (a, b, loose) { var versionA = new SemVer(a, loose) var versionB = new SemVer(b, loose) return versionA.compare(versionB) || versionA.compareBuild(versionB) } exports.rcompare = rcompare function rcompare (a, b, loose) { return compare(b, a, loose) } exports.sort = sort function sort (list, loose) { return list.sort(function (a, b) { return exports.compareBuild(a, b, loose) }) } exports.rsort = rsort function rsort (list, loose) { return list.sort(function (a, b) { return exports.compareBuild(b, a, loose) }) } exports.gt = gt function gt (a, b, loose) { return compare(a, b, loose) > 0 } exports.lt = lt function lt (a, b, loose) { return compare(a, b, loose) < 0 } exports.eq = eq function eq (a, b, loose) { return compare(a, b, loose) === 0 } exports.neq = neq function neq (a, b, loose) { return compare(a, b, loose) !== 0 } exports.gte = gte function gte (a, b, loose) { return compare(a, b, loose) >= 0 } exports.lte = lte function lte (a, b, loose) { return compare(a, b, loose) <= 0 } exports.cmp = cmp function cmp (a, op, b, loose) { switch (op) { case '===': if (typeof a === 'object') a = a.version if (typeof b === 'object') b = b.version return a === b case '!==': if (typeof a === 'object') a = a.version if (typeof b === 'object') b = b.version return a !== b case '': case '=': case '==': return eq(a, b, loose) case '!=': return neq(a, b, loose) case '>': return gt(a, b, loose) case '>=': return gte(a, b, loose) case '<': return lt(a, b, loose) case '<=': return lte(a, b, loose) default: throw new TypeError('Invalid operator: ' + op) } } exports.Comparator = Comparator function Comparator (comp, options) { if (!options || typeof options !== 'object') { options = { loose: !!options, includePrerelease: false } } if (comp instanceof Comparator) { if (comp.loose === !!options.loose) { return comp } else { comp = comp.value } } if (!(this instanceof Comparator)) { return new Comparator(comp, options) } debug('comparator', comp, options) this.options = options this.loose = !!options.loose this.parse(comp) if (this.semver === ANY) { this.value = '' } else { this.value = this.operator + this.semver.version } debug('comp', this) } var ANY = {} Comparator.prototype.parse = function (comp) { var r = this.options.loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR] var m = comp.match(r) if (!m) { throw new TypeError('Invalid comparator: ' + comp) } this.operator = m[1] !== undefined ? m[1] : '' if (this.operator === '=') { this.operator = '' } // if it literally is just '>' or '' then allow anything. if (!m[2]) { this.semver = ANY } else { this.semver = new SemVer(m[2], this.options.loose) } } Comparator.prototype.toString = function () { return this.value } Comparator.prototype.test = function (version) { debug('Comparator.test', version, this.options.loose) if (this.semver === ANY || version === ANY) { return true } if (typeof version === 'string') { try { version = new SemVer(version, this.options) } catch (er) { return false } } return cmp(version, this.operator, this.semver, this.options) } Comparator.prototype.intersects = function (comp, options) { if (!(comp instanceof Comparator)) { throw new TypeError('a Comparator is required') } if (!options || typeof options !== 'object') { options = { loose: !!options, includePrerelease: false } } var rangeTmp if (this.operator === '') { if (this.value === '') { return true } rangeTmp = new Range(comp.value, options) return satisfies(this.value, rangeTmp, options) } else if (comp.operator === '') { if (comp.value === '') { return true } rangeTmp = new Range(this.value, options) return satisfies(comp.semver, rangeTmp, options) } var sameDirectionIncreasing = (this.operator === '>=' || this.operator === '>') && (comp.operator === '>=' || comp.operator === '>') var sameDirectionDecreasing = (this.operator === '<=' || this.operator === '<') && (comp.operator === '<=' || comp.operator === '<') var sameSemVer = this.semver.version === comp.semver.version var differentDirectionsInclusive = (this.operator === '>=' || this.operator === '<=') && (comp.operator === '>=' || comp.operator === '<=') var oppositeDirectionsLessThan = cmp(this.semver, '<', comp.semver, options) && ((this.operator === '>=' || this.operator === '>') && (comp.operator === '<=' || comp.operator === '<')) var oppositeDirectionsGreaterThan = cmp(this.semver, '>', comp.semver, options) && ((this.operator === '<=' || this.operator === '<') && (comp.operator === '>=' || comp.operator === '>')) return sameDirectionIncreasing || sameDirectionDecreasing || (sameSemVer && differentDirectionsInclusive) || oppositeDirectionsLessThan || oppositeDirectionsGreaterThan } exports.Range = Range function Range (range, options) { if (!options || typeof options !== 'object') { options = { loose: !!options, includePrerelease: false } } if (range instanceof Range) { if (range.loose === !!options.loose && range.includePrerelease === !!options.includePrerelease) { return range } else { return new Range(range.raw, options) } } if (range instanceof Comparator) { return new Range(range.value, options) } if (!(this instanceof Range)) { return new Range(range, options) } this.options = options this.loose = !!options.loose this.includePrerelease = !!options.includePrerelease // First, split based on boolean or || this.raw = range this.set = range.split(/\s*\|\|\s*/).map(function (range) { return this.parseRange(range.trim()) }, this).filter(function (c) { // throw out any that are not relevant for whatever reason return c.length }) if (!this.set.length) { throw new TypeError('Invalid SemVer Range: ' + range) } this.format() } Range.prototype.format = function () { this.range = this.set.map(function (comps) { return comps.join(' ').trim() }).join('||').trim() return this.range } Range.prototype.toString = function () { return this.range } Range.prototype.parseRange = function (range) { var loose = this.options.loose range = range.trim() // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4` var hr = loose ? re[t.HYPHENRANGELOOSE] : re[t.HYPHENRANGE] range = range.replace(hr, hyphenReplace) debug('hyphen replace', range) // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5` range = range.replace(re[t.COMPARATORTRIM], comparatorTrimReplace) debug('comparator trim', range, re[t.COMPARATORTRIM]) // `~ 1.2.3` => `~1.2.3` range = range.replace(re[t.TILDETRIM], tildeTrimReplace) // `^ 1.2.3` => `^1.2.3` range = range.replace(re[t.CARETTRIM], caretTrimReplace) // normalize spaces range = range.split(/\s+/).join(' ') // At this point, the range is completely trimmed and // ready to be split into comparators. var compRe = loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR] var set = range.split(' ').map(function (comp) { return parseComparator(comp, this.options) }, this).join(' ').split(/\s+/) if (this.options.loose) { // in loose mode, throw out any that are not valid comparators set = set.filter(function (comp) { return !!comp.match(compRe) }) } set = set.map(function (comp) { return new Comparator(comp, this.options) }, this) return set } Range.prototype.intersects = function (range, options) { if (!(range instanceof Range)) { throw new TypeError('a Range is required') } return this.set.some(function (thisComparators) { return ( isSatisfiable(thisComparators, options) && range.set.some(function (rangeComparators) { return ( isSatisfiable(rangeComparators, options) && thisComparators.every(function (thisComparator) { return rangeComparators.every(function (rangeComparator) { return thisComparator.intersects(rangeComparator, options) }) }) ) }) ) }) } // take a set of comparators and determine whether there // exists a version which can satisfy it function isSatisfiable (comparators, options) { var result = true var remainingComparators = comparators.slice() var testComparator = remainingComparators.pop() while (result && remainingComparators.length) { result = remainingComparators.every(function (otherComparator) { return testComparator.intersects(otherComparator, options) }) testComparator = remainingComparators.pop() } return result } // Mostly just for testing and legacy API reasons exports.toComparators = toComparators function toComparators (range, options) { return new Range(range, options).set.map(function (comp) { return comp.map(function (c) { return c.value }).join(' ').trim().split(' ') }) } // comprised of xranges, tildes, stars, and gtlt's at this point. // already replaced the hyphen ranges // turn into a set of JUST comparators. function parseComparator (comp, options) { debug('comp', comp, options) comp = replaceCarets(comp, options) debug('caret', comp) comp = replaceTildes(comp, options) debug('tildes', comp) comp = replaceXRanges(comp, options) debug('xrange', comp) comp = replaceStars(comp, options) debug('stars', comp) return comp } function isX (id) { return !id || id.toLowerCase() === 'x' || id === '*' } // ~, ~> --> * (any, kinda silly) // ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0 // ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0 // ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0 // ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0 // ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0 function replaceTildes (comp, options) { return comp.trim().split(/\s+/).map(function (comp) { return replaceTilde(comp, options) }).join(' ') } function replaceTilde (comp, options) { var r = options.loose ? re[t.TILDELOOSE] : re[t.TILDE] return comp.replace(r, function (_, M, m, p, pr) { debug('tilde', comp, _, M, m, p, pr) var ret if (isX(M)) { ret = '' } else if (isX(m)) { ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0' } else if (isX(p)) { // ~1.2 == >=1.2.0 <1.3.0 ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0' } else if (pr) { debug('replaceTilde pr', pr) ret = '>=' + M + '.' + m + '.' + p + '-' + pr + ' <' + M + '.' + (+m + 1) + '.0' } else { // ~1.2.3 == >=1.2.3 <1.3.0 ret = '>=' + M + '.' + m + '.' + p + ' <' + M + '.' + (+m + 1) + '.0' } debug('tilde return', ret) return ret }) } // ^ --> * (any, kinda silly) // ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0 // ^2.0, ^2.0.x --> >=2.0.0 <3.0.0 // ^1.2, ^1.2.x --> >=1.2.0 <2.0.0 // ^1.2.3 --> >=1.2.3 <2.0.0 // ^1.2.0 --> >=1.2.0 <2.0.0 function replaceCarets (comp, options) { return comp.trim().split(/\s+/).map(function (comp) { return replaceCaret(comp, options) }).join(' ') } function replaceCaret (comp, options) { debug('caret', comp, options) var r = options.loose ? re[t.CARETLOOSE] : re[t.CARET] return comp.replace(r, function (_, M, m, p, pr) { debug('caret', comp, _, M, m, p, pr) var ret if (isX(M)) { ret = '' } else if (isX(m)) { ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0' } else if (isX(p)) { if (M === '0') { ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0' } else { ret = '>=' + M + '.' + m + '.0 <' + (+M + 1) + '.0.0' } } else if (pr) { debug('replaceCaret pr', pr) if (M === '0') { if (m === '0') { ret = '>=' + M + '.' + m + '.' + p + '-' + pr + ' <' + M + '.' + m + '.' + (+p + 1) } else { ret = '>=' + M + '.' + m + '.' + p + '-' + pr + ' <' + M + '.' + (+m + 1) + '.0' } } else { ret = '>=' + M + '.' + m + '.' + p + '-' + pr + ' <' + (+M + 1) + '.0.0' } } else { debug('no pr') if (M === '0') { if (m === '0') { ret = '>=' + M + '.' + m + '.' + p + ' <' + M + '.' + m + '.' + (+p + 1) } else { ret = '>=' + M + '.' + m + '.' + p + ' <' + M + '.' + (+m + 1) + '.0' } } else { ret = '>=' + M + '.' + m + '.' + p + ' <' + (+M + 1) + '.0.0' } } debug('caret return', ret) return ret }) } function replaceXRanges (comp, options) { debug('replaceXRanges', comp, options) return comp.split(/\s+/).map(function (comp) { return replaceXRange(comp, options) }).join(' ') } function replaceXRange (comp, options) { comp = comp.trim() var r = options.loose ? re[t.XRANGELOOSE] : re[t.XRANGE] return comp.replace(r, function (ret, gtlt, M, m, p, pr) { debug('xRange', comp, ret, gtlt, M, m, p, pr) var xM = isX(M) var xm = xM || isX(m) var xp = xm || isX(p) var anyX = xp if (gtlt === '=' && anyX) { gtlt = '' } // if we're including prereleases in the match, then we need // to fix this to -0, the lowest possible prerelease value pr = options.includePrerelease ? '-0' : '' if (xM) { if (gtlt === '>' || gtlt === '<') { // nothing is allowed ret = '<0.0.0-0' } else { // nothing is forbidden ret = '*' } } else if (gtlt && anyX) { // we know patch is an x, because we have any x at all. // replace X with 0 if (xm) { m = 0 } p = 0 if (gtlt === '>') { // >1 => >=2.0.0 // >1.2 => >=1.3.0 // >1.2.3 => >= 1.2.4 gtlt = '>=' if (xm) { M = +M + 1 m = 0 p = 0 } else { m = +m + 1 p = 0 } } else if (gtlt === '<=') { // <=0.7.x is actually <0.8.0, since any 0.7.x should // pass. Similarly, <=7.x is actually <8.0.0, etc. gtlt = '<' if (xm) { M = +M + 1 } else { m = +m + 1 } } ret = gtlt + M + '.' + m + '.' + p + pr } else if (xm) { ret = '>=' + M + '.0.0' + pr + ' <' + (+M + 1) + '.0.0' + pr } else if (xp) { ret = '>=' + M + '.' + m + '.0' + pr + ' <' + M + '.' + (+m + 1) + '.0' + pr } debug('xRange return', ret) return ret }) } // Because * is AND-ed with everything else in the comparator, // and '' means "any version", just remove the *s entirely. function replaceStars (comp, options) { debug('replaceStars', comp, options) // Looseness is ignored here. star is always as loose as it gets! return comp.trim().replace(re[t.STAR], '') } // This function is passed to string.replace(re[t.HYPHENRANGE]) // M, m, patch, prerelease, build // 1.2 - 3.4.5 => >=1.2.0 <=3.4.5 // 1.2.3 - 3.4 => >=1.2.0 <3.5.0 Any 3.4.x will do // 1.2 - 3.4 => >=1.2.0 <3.5.0 function hyphenReplace ($0, from, fM, fm, fp, fpr, fb, to, tM, tm, tp, tpr, tb) { if (isX(fM)) { from = '' } else if (isX(fm)) { from = '>=' + fM + '.0.0' } else if (isX(fp)) { from = '>=' + fM + '.' + fm + '.0' } else { from = '>=' + from } if (isX(tM)) { to = '' } else if (isX(tm)) { to = '<' + (+tM + 1) + '.0.0' } else if (isX(tp)) { to = '<' + tM + '.' + (+tm + 1) + '.0' } else if (tpr) { to = '<=' + tM + '.' + tm + '.' + tp + '-' + tpr } else { to = '<=' + to } return (from + ' ' + to).trim() } // if ANY of the sets match ALL of its comparators, then pass Range.prototype.test = function (version) { if (!version) { return false } if (typeof version === 'string') { try { version = new SemVer(version, this.options) } catch (er) { return false } } for (var i = 0; i < this.set.length; i++) { if (testSet(this.set[i], version, this.options)) { return true } } return false } function testSet (set, version, options) { for (var i = 0; i < set.length; i++) { if (!set[i].test(version)) { return false } } if (version.prerelease.length && !options.includePrerelease) { // Find the set of versions that are allowed to have prereleases // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0 // That should allow `1.2.3-pr.2` to pass. // However, `1.2.4-alpha.notready` should NOT be allowed, // even though it's within the range set by the comparators. for (i = 0; i < set.length; i++) { debug(set[i].semver) if (set[i].semver === ANY) { continue } if (set[i].semver.prerelease.length > 0) { var allowed = set[i].semver if (allowed.major === version.major && allowed.minor === version.minor && allowed.patch === version.patch) { return true } } } // Version has a -pre, but it's not one of the ones we like. return false } return true } exports.satisfies = satisfies function satisfies (version, range, options) { try { range = new Range(range, options) } catch (er) { return false } return range.test(version) } exports.maxSatisfying = maxSatisfying function maxSatisfying (versions, range, options) { var max = null var maxSV = null try { var rangeObj = new Range(range, options) } catch (er) { return null } versions.forEach(function (v) { if (rangeObj.test(v)) { // satisfies(v, range, options) if (!max || maxSV.compare(v) === -1) { // compare(max, v, true) max = v maxSV = new SemVer(max, options) } } }) return max } exports.minSatisfying = minSatisfying function minSatisfying (versions, range, options) { var min = null var minSV = null try { var rangeObj = new Range(range, options) } catch (er) { return null } versions.forEach(function (v) { if (rangeObj.test(v)) { // satisfies(v, range, options) if (!min || minSV.compare(v) === 1) { // compare(min, v, true) min = v minSV = new SemVer(min, options) } } }) return min } exports.minVersion = minVersion function minVersion (range, loose) { range = new Range(range, loose) var minver = new SemVer('0.0.0') if (range.test(minver)) { return minver } minver = new SemVer('0.0.0-0') if (range.test(minver)) { return minver } minver = null for (var i = 0; i < range.set.length; ++i) { var comparators = range.set[i] comparators.forEach(function (comparator) { // Clone to avoid manipulating the comparator's semver object. var compver = new SemVer(comparator.semver.version) switch (comparator.operator) { case '>': if (compver.prerelease.length === 0) { compver.patch++ } else { compver.prerelease.push(0) } compver.raw = compver.format() /* fallthrough */ case '': case '>=': if (!minver || gt(minver, compver)) { minver = compver } break case '<': case '<=': /* Ignore maximum versions */ break /* istanbul ignore next */ default: throw new Error('Unexpected operation: ' + comparator.operator) } }) } if (minver && range.test(minver)) { return minver } return null } exports.validRange = validRange function validRange (range, options) { try { // Return '*' instead of '' so that truthiness works. // This will throw if it's invalid anyway return new Range(range, options).range || '*' } catch (er) { return null } } // Determine if version is less than all the versions possible in the range exports.ltr = ltr function ltr (version, range, options) { return outside(version, range, '<', options) } // Determine if version is greater than all the versions possible in the range. exports.gtr = gtr function gtr (version, range, options) { return outside(version, range, '>', options) } exports.outside = outside function outside (version, range, hilo, options) { version = new SemVer(version, options) range = new Range(range, options) var gtfn, ltefn, ltfn, comp, ecomp switch (hilo) { case '>': gtfn = gt ltefn = lte ltfn = lt comp = '>' ecomp = '>=' break case '<': gtfn = lt ltefn = gte ltfn = gt comp = '<' ecomp = '<=' break default: throw new TypeError('Must provide a hilo val of "<" or ">"') } // If it satisifes the range it is not outside if (satisfies(version, range, options)) { return false } // From now on, variable terms are as if we're in "gtr" mode. // but note that everything is flipped for the "ltr" function. for (var i = 0; i < range.set.length; ++i) { var comparators = range.set[i] var high = null var low = null comparators.forEach(function (comparator) { if (comparator.semver === ANY) { comparator = new Comparator('>=0.0.0') } high = high || comparator low = low || comparator if (gtfn(comparator.semver, high.semver, options)) { high = comparator } else if (ltfn(comparator.semver, low.semver, options)) { low = comparator } }) // If the edge version comparator has a operator then our version // isn't outside it if (high.operator === comp || high.operator === ecomp) { return false } // If the lowest version comparator has an operator and our version // is less than it then it isn't higher than the range if ((!low.operator || low.operator === comp) && ltefn(version, low.semver)) { return false } else if (low.operator === ecomp && ltfn(version, low.semver)) { return false } } return true } exports.prerelease = prerelease function prerelease (version, options) { var parsed = parse(version, options) return (parsed && parsed.prerelease.length) ? parsed.prerelease : null } exports.intersects = intersects function intersects (r1, r2, options) { r1 = new Range(r1, options) r2 = new Range(r2, options) return r1.intersects(r2) } exports.coerce = coerce function coerce (version, options) { if (version instanceof SemVer) { return version } if (typeof version === 'number') { version = String(version) } if (typeof version !== 'string') { return null } options = options || {} var match = null if (!options.rtl) { match = version.match(re[t.COERCE]) } else { // Find the right-most coercible string that does not share // a terminus with a more left-ward coercible string. // Eg, '1.2.3.4' wants to coerce '2.3.4', not '3.4' or '4' // // Walk through the string checking with a /g regexp // Manually set the index so as to pick up overlapping matches. // Stop when we get a match that ends at the string end, since no // coercible string can be more right-ward without the same terminus. var next while ((next = re[t.COERCERTL].exec(version)) && (!match || match.index + match[0].length !== version.length) ) { if (!match || next.index + next[0].length !== match.index + match[0].length) { match = next } re[t.COERCERTL].lastIndex = next.index + next[1].length + next[2].length } // leave it in a clean state re[t.COERCERTL].lastIndex = -1 } if (match === null) { return null } return parse(match[2] + '.' + (match[3] || '0') + '.' + (match[4] || '0'), options) }