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'use strict'
module.exports = pickManifestFromRegistryMetadata
var log = require('npmlog')
var semver = require('semver')
function pickManifestFromRegistryMetadata (spec, tag, versions, metadata) {
log.silly('pickManifestFromRegistryMetadata', 'spec', spec, 'tag', tag, 'versions', versions)
// if the tagged version satisfies, then use that.
var tagged = metadata['dist-tags'][tag]
if (tagged &&
metadata.versions[tagged] &&
semver.satisfies(tagged, spec, true))
return { resolvedTo: tag, manifest: metadata.versions[tagged] }
// find the max satisfying version.
var ms = semver.maxSatisfying(versions, spec, true)
if (ms)
return { resolvedTo: ms, manifest: metadata.versions[ms] }
else if (spec === '*' && versions.length && tagged && metadata.versions[tagged])
return { resolvedTo: tag, manifest: metadata.versions[tagged] }
else {
}
}
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