64 lines
2.4 KiB
Markdown
64 lines
2.4 KiB
Markdown
<p align="center">
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<a href="https://gulpjs.com">
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<img height="257" width="114" src="https://raw.githubusercontent.com/gulpjs/artwork/master/gulp-2x.png">
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</a>
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</p>
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# fs-mkdirp-stream
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[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Build Status][ci-image]][ci-url] [![Coveralls Status][coveralls-image]][coveralls-url]
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Ensure directories exist before writing to them.
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## Usage
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```js
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var { Readable, Writable } = require('streamx');
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var mkdirpStream = require('fs-mkdirp-stream');
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Readable.from([{ dirname: './path/to/my/', path: './path/to/my/file.js' }])
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.pipe(
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mkdirpStream(function (obj, callback) {
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// callback can take 3 arguments (err, dirname, mode)
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callback(null, obj.dirname);
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})
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)
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.pipe(
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new Writable({
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write: function (obj, cb) {
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// This will be called once the directory exists
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// obj === { dirname: '/path/to/my/', path: '/path/to/my/file.js' }
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cb();
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},
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})
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);
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```
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## API
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### `mkdirpStream(resolver)`
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Takes a `resolver` function or string and returns a `streamx.Transform` stream.
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If the `resolver` is a function, it will be called once per chunk with the signature `(chunk, callback)`. The `callback(error, dirpath, mode)` must be called with the `dirpath` to be created as the 2nd parameter or an `error` as the 1st parameter; optionally with a `mode` as the 3rd parameter.
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If the `resolver` is a string, it will be created/ensured for each chunk (e.g. if it were deleted between chunks, it would be recreated). When using a string, a custom `mode` can't be used.
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## License
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MIT
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Contains a custom implementation of `mkdirp` originally based on https://github.com/substack/node-mkdirp (Licensed MIT/X11 - Copyright 2010 James Halliday) with heavy modification to better support custom modes.
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<!-- prettier-ignore-start -->
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[downloads-image]: https://img.shields.io/npm/dm/fs-mkdirp-stream.svg?style=flat-square
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[npm-url]: https://www.npmjs.com/package/fs-mkdirp-stream
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[npm-image]: https://img.shields.io/npm/v/fs-mkdirp-stream.svg?style=flat-square
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[ci-url]: https://github.com/gulpjs/fs-mkdirp-stream/actions?query=workflow:dev
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[ci-image]: https://img.shields.io/github/workflow/status/gulpjs/fs-mkdirp-stream/dev?style=flat-square
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[coveralls-url]: https://coveralls.io/r/gulpjs/fs-mkdirp-stream
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[coveralls-image]: https://img.shields.io/coveralls/gulpjs/fs-mkdirp-stream/master.svg?style=flat-square
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<!-- prettier-ignore-end -->
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