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unified-ai-platform/node_modules/infer-owner/index.js

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+const cache = new Map()
+const fs = require('fs')
+const { dirname, resolve } = require('path')
+
+
+const lstat = path => new Promise((res, rej) =>
+  fs.lstat(path, (er, st) => er ? rej(er) : res(st)))
+
+const inferOwner = path => {
+  path = resolve(path)
+  if (cache.has(path))
+    return Promise.resolve(cache.get(path))
+
+  const statThen = st => {
+    const { uid, gid } = st
+    cache.set(path, { uid, gid })
+    return { uid, gid }
+  }
+  const parent = dirname(path)
+  const parentTrap = parent === path ? null : er => {
+    return inferOwner(parent).then((owner) => {
+      cache.set(path, owner)
+      return owner
+    })
+  }
+  return lstat(path).then(statThen, parentTrap)
+}
+
+const inferOwnerSync = path => {
+  path = resolve(path)
+  if (cache.has(path))
+    return cache.get(path)
+
+  const parent = dirname(path)
+
+  // avoid obscuring call site by re-throwing
+  // "catch" the error by returning from a finally,
+  // only if we're not at the root, and the parent call works.
+  let threw = true
+  try {
+    const st = fs.lstatSync(path)
+    threw = false
+    const { uid, gid } = st
+    cache.set(path, { uid, gid })
+    return { uid, gid }
+  } finally {
+    if (threw && parent !== path) {
+      const owner = inferOwnerSync(parent)
+      cache.set(path, owner)
+      return owner // eslint-disable-line no-unsafe-finally
+    }
+  }
+}
+
+const inflight = new Map()
+module.exports = path => {
+  path = resolve(path)
+  if (inflight.has(path))
+    return Promise.resolve(inflight.get(path))
+  const p = inferOwner(path).then(owner => {
+    inflight.delete(path)
+    return owner
+  })
+  inflight.set(path, p)
+  return p
+}
+module.exports.sync = inferOwnerSync
+module.exports.clearCache = () => {
+  cache.clear()
+  inflight.clear()
+}

unified-ai-platform/node_modules/infer-owner/package.json

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+{
+  "name": "infer-owner",
+  "version": "1.0.4",
+  "description": "Infer the owner of a path based on the owner of its nearest existing parent",
+  "author": "Isaac Z. Schlueter <i@izs.me> (https://izs.me)",
+  "license": "ISC",
+  "scripts": {
+    "test": "tap -J test/*.js --100",
+    "snap": "TAP_SNAPSHOT=1 tap -J test/*.js --100",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags"
+  },
+  "devDependencies": {
+    "mutate-fs": "^2.1.1",
+    "tap": "^12.4.2"
+  },
+  "main": "index.js",
+  "repository": "https://github.com/npm/infer-owner",
+  "publishConfig": {
+    "access": "public"
+  },
+  "files": [
+    "index.js"
+  ]
+}