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@stdlib/fs-resolve-parent-path-by

Resolve a path according to a predicate function by walking parent directories.

0.2.2

Apache-2.0

JavaScript

4.18 kB

3,165 4.3

Installations

npm install @stdlib/fs-resolve-parent-path-by

Developer Guide

BETA

Typescript

Yes

Module System

CommonJS

Min. Node Version

>=0.10.0

Node Version

16.20.2

NPM Version

8.19.4 Score

71.2

Supply Chain

88.9

Quality

82.8

Maintenance

100

Vulnerability

License

Pull Requests

Open

0

Total

0

Closed

0

Issues

Open

0

Total

0

Closed

0

Releases

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View all 11 contributors

Languages

JavaScript

JavaScript (100%)

Developer

stdlib-js

Download Statistics

Total Downloads

3,165

Last Day

Last Week

Last Month

Last Year

792

GitHub Statistics

1 Stars

60 Commits

3 Watching

5 Branches

11 Contributors

Bundle Size

15.64 kB

Minified

4.18 kB

Minified + Gzipped

Bundlephobia

Sponsor this package

https://opencollective.com/stdlib

Maintainers

Package Meta Information

Latest Version

0.2.2

Package Id

@stdlib/fs-resolve-parent-path-by@0.2.2

Unpacked Size

53.80 kB

Size

12.54 kB

File Count

NPM Version

8.19.4

Node Version

16.20.2

Publised On

27 Jul 2024

Total Downloads

Cumulative downloads

Total Downloads

3,165

Last day

Compared to previous day

Last week

13.6%

Compared to previous week

Last month

480%

Compared to previous month

Last year

-17.3%

792

Compared to previous year

Daily Downloads

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

@stdlib/assert-has-own-property @stdlib/assert-is-function @stdlib/assert-is-plain-object @stdlib/assert-is-string @stdlib/fs-exists @stdlib/process-cwd @stdlib/string-format @stdlib/utils-define-nonenumerable-read-only-property @stdlib/error-tools-fmtprodmsg

Versions

About stdlib...

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

resolveParentPathBy

Resolve a path according to a predicate function by walking parent directories.

Installation

1npm install @stdlib/fs-resolve-parent-path-by

Usage

1var resolveParentPathBy = require( '@stdlib/fs-resolve-parent-path-by' );

resolveParentPathBy( path[, options], predicate, clbk )

Asynchronously resolves a path according to a predicate function by walking parent directories.

1resolveParentPathBy( 'package.json', predicate, onPath );
2
3function predicate( path, next ) {
4    var bool = ( /\/test\//.test( path ) === false );
5    next( null, bool );
6}
7
8function onPath( error, path ) {
9    if ( error ) {
10        throw error;
11    }
12    console.log( path );
13    // e.g., => '...'
14}

The function accepts the following options:

dir: base directory from which to begin walking. May be either an absolute path or a path relative to the current working directory.

By default, the function begins walking from the current working directory. To specify an alternative directory, set the dir option.

1var opts = {
2    'dir': __dirname
3};
4resolveParentPathBy( 'package.json', opts, predicate, onPath );
5
6function predicate( path, next ) {
7    var bool = ( /\/test\//.test( path ) === false );
8    next( null, bool );
9}
10
11function onPath( error, path ) {
12    if ( error ) {
13        throw error;
14    }
15    console.log( path );
16    // e.g., => '...'
17}

When invoked, the predicate function is provided two arguments:

path: a resolved path.
next: a callback which should be called once the predicate function has finished processing a resolved path.

If a predicate function calls the next callback with a truthy second argument, the function stops processing any additional paths and returns the resolved path as the test result.

If unable to resolve a path, the function returns null as the path result.

resolveParentPathBy.sync( path[, options], predicate )

Synchronously resolves a path according to a predicate function by walking parent directories.

1function predicate( path ) {
2    return ( /\/test\//.test( path ) === false );
3}
4
5var path = resolveParentPathBy.sync( 'package.json', predicate );
6// e.g., returns '...'

The function accepts the same options as resolveParentPathBy().

When invoked, the predicate function is provided one argument:

path: a resolved path.

The function immediately returns upon encountering a truthy predicate function return value.

If unable to resolve a path, the function returns null as the path result.

Notes

If a provided predicate function calls the next callback with a truthy error argument, the function suspends execution and immediately calls the done callback for subsequent error handling.
For resolveParentPathBy, execution is not guaranteed to be asynchronous. To guarantee asynchrony, wrap the done callback in a function which either executes at the end of the current stack (e.g., nextTick) or during a subsequent turn of the event loop (e.g., setImmediate, setTimeout).
This implementation is not similar in functionality to core path.resolve. The latter performs string manipulation to generate a full path. This implementation walks parent directories to perform a search, thereby touching the file system. Accordingly, this implementation resolves a real absolute file path and is intended for use when a target's location in a parent directory is unknown relative to a child directory; e.g., when wanting to find a package root from deep within a package directory.

Examples

1var resolveParentPathBy = require( '@stdlib/fs-resolve-parent-path-by' );
2
3var opts = {
4    'dir': __dirname
5};
6
7/* Sync */
8
9function predicateSync( path ) {
10    var pkg = require( path );
11    if ( pkg.name !== '@stdlib/stdlib' ) {
12        return false;
13    }
14    return true;
15}
16
17var out = resolveParentPathBy.sync( 'package.json', opts, predicateSync );
18console.log( out );
19// e.g., => '...'
20
21out = resolveParentPathBy.sync( 'non_existent_basename/package.json', predicateSync );
22console.log( out );
23// => null
24
25/* Async */
26
27function predicateAsync( path, next ) {
28    setTimeout( onTimeout, 0 );
29
30    function onTimeout() {
31        var pkg = require( path );
32        if ( pkg.name !== '@stdlib/stdlib' ) {
33            return next( null, false );
34        }
35        next( null, true );
36    }
37}
38
39function onPath( error, path ) {
40    if ( error ) {
41        throw error;
42    }
43    console.log( path );
44}
45
46resolveParentPathBy( 'package.json', opts, predicateAsync, onPath );
47resolveParentPathBy( './../non_existent_path/package.json', predicateAsync, onPath );

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

License

See LICENSE.

Copyright

No vulnerabilities found.

10

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10

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10

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10

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9

Security-Policy

Determines if the project has published a security policy.

3

Pinned-Dependencies

Determines if the project has declared and pinned the dependencies of its build process.

Reason

dependency not pinned by hash detected -- score normalized to 3

Details

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Info: 33 out of 33 GitHub-owned GitHubAction dependencies pinned
Info: 19 out of 24 third-party GitHubAction dependencies pinned
Info: 0 out of 32 npmCommand dependencies pinned

1

Maintained

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0

Code-Review

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0

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0

Token-Permissions

Determines if the project's workflows follow the principle of least privilege.

0

Branch-Protection

Determines if the default and release branches are protected with GitHub's branch protection settings.

Score

4.3

/10

Last Scanned on 2025-01-27

The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.

Learn More

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@stdlib/fs-resolve-parent-path-by

Installations

Developer Guide

Yes

CommonJS

>=0.10.0

16.20.2

8.19.4

Score

Pull Requests

0

0

0

Issues

0

0

0

Releases

Unable to fetch releases

Contributors

Unable to fetch Contributors

Languages

Developer

Download Statistics

GitHub Statistics

Bundle Size

15.64 kB

4.18 kB

Sponsor this package

Maintainers

Package Meta Information

Total Downloads

3,165

Daily Downloads

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

resolveParentPathBy

Installation

Usage

resolveParentPathBy( path[, options], predicate, clbk )

resolveParentPathBy.sync( path[, options], predicate )

Notes

Examples

See Also

Notice

Community

License

Copyright

10

10

10

10

9

3

1

0

0

0

0

0

0

4.3

/10

Other packages similar to @stdlib/fs-resolve-parent-path-by