utils-fs-read-json5

Read JSON5

Reads the entire contents of a JSON5 file.

Installation

$ npm install utils-fs-read-json5

Usage

var read = require( 'utils-fs-read-json5' );

read( path, [ options,] clbk )

Reads the entire contents of a JSON5 file.

read( '/path/to/data.json5', onData );
 
function onData( error, data ) {
    if ( error ) {
        console.error( error );
    } else {
        console.log( data );
    }
}

The function accepts the same options as fs.readFile(), but encoding is always set to utf8. In addition, a JSON reviver may be provided.

var opts = {
    'reviver': reviver
};
 
read( '/path/to/data.json5', opts, onData );
 
function onData( error, data ) {
    if ( error ) {
        console.error( error );
    } else {
        console.log( data );
    }
}
 
function reviver( key, value ) {
    if ( key === 'beep' ) {
        return 'boop';
    }
    return value;
}

read.sync( path[, options] )

Synchronously reads the contents of an entire JSON5 file.

var out = read.sync( '/path/to/data.json5' );
if ( out instanceof Error ) {
    throw out;
}
console.log( out );

The function accepts the same options as fs.readFileSync() and supports JSON5#parse options.

Examples

var path = require( 'path' ),
    read = require( 'utils-fs-read-json5' );
 
var file = path.join( __dirname, 'config.json5' );
 
// Sync:
var data = read.sync( file, 'utf8' );
// returns <object>
 
console.log( data instanceof Error );
// returns false
 
data = read.sync( 'beepboop', {
    'encoding': 'utf8'
});
// returns <error>
 
console.log( data instanceof Error );
// returns true
 
 
// Async:
read( file, onRead );
read( 'beepboop', onRead );
 
function onRead( error, config ) {
    if ( error ) {
        if ( error.code === 'ENOENT' ) {
            console.error( 'JSON5 file does not exist.' );
        } else {
            throw error;
        }
    } else {
        console.log( 'Port: %s.', config.server.port );
    }
}

To run the example code from the top-level application directory,

$ node ./examples/index.js

Tests

Unit

Unit tests use the Mocha test framework with Chai assertions. To run the tests, execute the following command in the top-level application directory:

$ make test

All new feature development should have corresponding unit tests to validate correct functionality.

Test Coverage

This repository uses Istanbul as its code coverage tool. To generate a test coverage report, execute the following command in the top-level application directory:

$ make test-cov

Istanbul creates a ./reports/coverage directory. To access an HTML version of the report,

$ make view-cov

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License

MIT license.

Copyright

Copyright © 2015. Athan Reines.