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42 lines
1.1 KiB
42 lines
1.1 KiB
4 years ago
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# infer-owner
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Infer the owner of a path based on the owner of its nearest existing parent
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## USAGE
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```js
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const inferOwner = require('infer-owner')
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inferOwner('/some/cache/folder/file').then(owner => {
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// owner is {uid, gid} that should be attached to
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// the /some/cache/folder/file, based on ownership
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// of /some/cache/folder, /some/cache, /some, or /,
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// whichever is the first to exist
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})
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// same, but not async
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const owner = inferOwner.sync('/some/cache/folder/file')
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// results are cached! to reset the cache (eg, to change
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// permissions for whatever reason), do this:
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inferOwner.clearCache()
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```
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This module endeavors to be as performant as possible. Parallel requests
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for ownership of the same path will only stat the directories one time.
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## API
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* `inferOwner(path) -> Promise<{ uid, gid }>`
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If the path exists, return its uid and gid. If it does not, look to
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its parent, then its grandparent, and so on.
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* `inferOwner(path) -> { uid, gid }`
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Sync form of `inferOwner(path)`.
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* `inferOwner.clearCache()`
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Delete all cached ownership information and in-flight tracking.
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