...
);
'''

### sass.logError(err)

Convenience function for pretty error logging.

### sass.clearCache([tempDir])

In rare cases you may need to clear gulp-ruby-sass's cache. This sync function deletes all files used for Sass caching. If you've
 set a custom temporary directory in your task you must pass it to 'clearCache'.


## Issues

This plugin wraps the Sass gem for the gulp build system. It does not alter Sass's output in any way. Any issues with Sass output
 should be reported to the [Sass issue tracker](https://github.com/sass/sass/issues).
...

...
			loadPath: [ 'library', '../../shared-components' ]
		})
		.on('error', sass.logError)
		.pipe(gulp.dest('result'))
);
'''

### sass.logError(err)

Convenience function for pretty error logging.

### sass.clearCache([tempDir])

In rare cases you may need to clear gulp-ruby-sass's cache. This sync function deletes all files used for Sass caching. If you've
 set a custom temporary directory in your task you must pass it to 'clearCache'.
...

...
	});

	sass.stderr.on('data', function (data) {
		logger.stderr(stream, intermediateDir, data);
	});

	sass.on('error', function (err) {
		logger.error(stream, err);
	});

	sass.on('close', function (code) {
		if (options.emitCompileError && code !== 0) {
			emitErr(stream, 'Sass compilation failed. See console output for more information.');
		}
...

...
	}
	// Sass error: directory missing
	else if (/No such file or directory @ rb_sysopen/.test(data)) {
		emitErr(stream, data.trim());
	}
	// Not an error: Sass logging
	else {
		data = logger.prettifyDirectoryLogging(data, intermediateDir);
		data = data.trim();
		gutil.log(data);
	}
};

logger.stderr = function (stream, intermediateDir, data) {
	var bundlerMissing = /Could not find 'bundler' \((.*?)\)/.exec(data);
...

...
	sass.stderr.setEncoding('utf8');

	sass.stdout.on('data', function (data) {
		logger.stdout(stream, intermediateDir, data);
	});

	sass.stderr.on('data', function (data) {
		logger.stderr(stream, intermediateDir, data);
	});

	sass.on('error', function (err) {
		logger.error(stream, err);
	});

	sass.on('close', function (code) {
...

...

	var sass = spawn(command, args);

	sass.stdout.setEncoding('utf8');
	sass.stderr.setEncoding('utf8');

	sass.stdout.on('data', function (data) {
		logger.stdout(stream, intermediateDir, data);
	});

	sass.stderr.on('data', function (data) {
		logger.stderr(stream, intermediateDir, data);
	});

	sass.on('error', function (err) {
...

...
	}
	else {
		command = 'sass';
	}

	// plugin logging
	if (options.verbose) {
		logger.verbose(command, args);
	}

	var sass = spawn(command, args);

	sass.stdout.setEncoding('utf8');
	sass.stderr.setEncoding('utf8');
...

...
	}

	var matches = [];
	var bases = [];

	sources.forEach(function (source) {
		matches.push(glob.sync(source));
		bases.push(options.base || utils.calculateBase(source));
	});

	// log and return stream if there are no file matches
	if (matches[0].length < 1) {
		gutil.log('No files matched your Sass source.');
		stream.push(null);
		return stream;
...

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