diff options
Diffstat (limited to 'backend/node_modules/semver/classes/semver.js')
| -rw-r--r-- | backend/node_modules/semver/classes/semver.js | 302 |
1 files changed, 302 insertions, 0 deletions
diff --git a/backend/node_modules/semver/classes/semver.js b/backend/node_modules/semver/classes/semver.js new file mode 100644 index 0000000..13e66ce --- /dev/null +++ b/backend/node_modules/semver/classes/semver.js @@ -0,0 +1,302 @@ +const debug = require('../internal/debug') +const { MAX_LENGTH, MAX_SAFE_INTEGER } = require('../internal/constants') +const { safeRe: re, t } = require('../internal/re') + +const parseOptions = require('../internal/parse-options') +const { compareIdentifiers } = require('../internal/identifiers') +class SemVer { + constructor (version, options) { + options = parseOptions(options) + + if (version instanceof SemVer) { + if (version.loose === !!options.loose && + version.includePrerelease === !!options.includePrerelease) { + return version + } else { + version = version.version + } + } else if (typeof version !== 'string') { + throw new TypeError(`Invalid version. Must be a string. Got type "${typeof version}".`) + } + + if (version.length > MAX_LENGTH) { + throw new TypeError( + `version is longer than ${MAX_LENGTH} characters` + ) + } + + debug('SemVer', version, options) + this.options = options + this.loose = !!options.loose + // this isn't actually relevant for versions, but keep it so that we + // don't run into trouble passing this.options around. + this.includePrerelease = !!options.includePrerelease + + const m = version.trim().match(options.loose ? re[t.LOOSE] : re[t.FULL]) + + if (!m) { + throw new TypeError(`Invalid Version: ${version}`) + } + + this.raw = version + + // these are actually numbers + this.major = +m[1] + this.minor = +m[2] + this.patch = +m[3] + + if (this.major > MAX_SAFE_INTEGER || this.major < 0) { + throw new TypeError('Invalid major version') + } + + if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) { + throw new TypeError('Invalid minor version') + } + + if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) { + throw new TypeError('Invalid patch version') + } + + // numberify any prerelease numeric ids + if (!m[4]) { + this.prerelease = [] + } else { + this.prerelease = m[4].split('.').map((id) => { + if (/^[0-9]+$/.test(id)) { + const num = +id + if (num >= 0 && num < MAX_SAFE_INTEGER) { + return num + } + } + return id + }) + } + + this.build = m[5] ? m[5].split('.') : [] + this.format() + } + + format () { + this.version = `${this.major}.${this.minor}.${this.patch}` + if (this.prerelease.length) { + this.version += `-${this.prerelease.join('.')}` + } + return this.version + } + + toString () { + return this.version + } + + compare (other) { + debug('SemVer.compare', this.version, this.options, other) + if (!(other instanceof SemVer)) { + if (typeof other === 'string' && other === this.version) { + return 0 + } + other = new SemVer(other, this.options) + } + + if (other.version === this.version) { + return 0 + } + + return this.compareMain(other) || this.comparePre(other) + } + + compareMain (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) + ) + } + + comparePre (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 + } + + let i = 0 + do { + const a = this.prerelease[i] + const 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) + } + + compareBuild (other) { + if (!(other instanceof SemVer)) { + other = new SemVer(other, this.options) + } + + let i = 0 + do { + const a = this.build[i] + const b = other.build[i] + debug('build 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. + inc (release, identifier, identifierBase) { + switch (release) { + case 'premajor': + this.prerelease.length = 0 + this.patch = 0 + this.minor = 0 + this.major++ + this.inc('pre', identifier, identifierBase) + break + case 'preminor': + this.prerelease.length = 0 + this.patch = 0 + this.minor++ + this.inc('pre', identifier, identifierBase) + 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, identifierBase) + this.inc('pre', identifier, identifierBase) + 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, identifierBase) + } + this.inc('pre', identifier, identifierBase) + 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': { + const base = Number(identifierBase) ? 1 : 0 + + if (!identifier && identifierBase === false) { + throw new Error('invalid increment argument: identifier is empty') + } + + if (this.prerelease.length === 0) { + this.prerelease = [base] + } else { + let 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 + if (identifier === this.prerelease.join('.') && identifierBase === false) { + throw new Error('invalid increment argument: identifier already exists') + } + this.prerelease.push(base) + } + } + 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 + let prerelease = [identifier, base] + if (identifierBase === false) { + prerelease = [identifier] + } + if (compareIdentifiers(this.prerelease[0], identifier) === 0) { + if (isNaN(this.prerelease[1])) { + this.prerelease = prerelease + } + } else { + this.prerelease = prerelease + } + } + break + } + default: + throw new Error(`invalid increment argument: ${release}`) + } + this.raw = this.format() + if (this.build.length) { + this.raw += `+${this.build.join('.')}` + } + return this + } +} + +module.exports = SemVer |