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import * as semver from 'next/dist/compiled/semver'
export interface VersionInfo {
installed: string
staleness:
| 'fresh'
| 'stale-patch'
| 'stale-minor'
| 'stale-major'
| 'stale-prerelease'
| 'newer-than-npm'
| 'unknown'
expected?: string
}
export function parseVersionInfo(o: {
installed: string
latest: string
canary: string
}): VersionInfo {
const latest = semver.parse(o.latest)
const canary = semver.parse(o.canary)
const installedParsed = semver.parse(o.installed)
const installed = o.installed
if (installedParsed && latest && canary) {
if (installedParsed.major < latest.major) {
// Old major version
return { staleness: 'stale-major', expected: latest.raw, installed }
} else if (
installedParsed.prerelease[0] === 'canary' &&
semver.lt(installedParsed, canary)
) {
// Matching major, but old canary
return {
staleness: 'stale-prerelease',
expected: canary.raw,
installed,
}
} else if (
!installedParsed.prerelease.length &&
semver.lt(installedParsed, latest)
) {
// Stable, but not the latest
if (installedParsed.minor === latest.minor) {
// Same major and minor, but not the latest patch
return {
staleness: 'stale-patch',
expected: latest.raw,
installed,
}
}
return { staleness: 'stale-minor', expected: latest.raw, installed }
} else if (
semver.gt(installedParsed, latest) &&
installedParsed.version !== canary.version
) {
// Newer major version
return { staleness: 'newer-than-npm', installed }
} else {
// Latest and greatest
return { staleness: 'fresh', installed }
}
}
return {
installed: installedParsed?.raw ?? '0.0.0',
staleness: 'unknown',
}
}
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