27 lines
750 B
JavaScript
27 lines
750 B
JavaScript
'use strict'
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const contentVer = require('../../package.json')['cache-version'].content
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const hashToSegments = require('../util/hash-to-segments')
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const path = require('path')
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const ssri = require('ssri')
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// Current format of content file path:
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//
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// sha512-BaSE64Hex= ->
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// ~/.my-cache/content-v2/sha512/ba/da/55deadbeefc0ffee
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//
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module.exports = contentPath
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function contentPath (cache, integrity) {
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const sri = ssri.parse(integrity, { single: true })
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// contentPath is the *strongest* algo given
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return path.join.apply(path, [
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contentDir(cache),
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sri.algorithm
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].concat(hashToSegments(sri.hexDigest())))
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}
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module.exports._contentDir = contentDir
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function contentDir (cache) {
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return path.join(cache, `content-v${contentVer}`)
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}
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