79 lines
2.2 KiB
JavaScript
79 lines
2.2 KiB
JavaScript
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'use strict';
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const path = require('path');
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const fs = require('fs');
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function findDependency(searchDir, depName) {
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var nonPartialPath = path.resolve(searchDir, depName);
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if (fs.existsSync(nonPartialPath)) {
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return nonPartialPath;
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}
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var partialsPath = path.resolve(searchDir, '_' + depName);
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if (fs.existsSync(partialsPath)) {
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return partialsPath;
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}
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}
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/**
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* Determines the resolved dependency path according to
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* the Sass compiler's dependency lookup behavior
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*
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* @param {Object} options
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* @param {String} options.dep - the import name
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* @param {String} options.filename - the file containing the import
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* @param {String|Array<String>} options.directory - the location(s) of all sass files
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* @return {String}
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*/
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module.exports = function({dependency: dep, filename, directory} = {}) {
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if (typeof dep === 'undefined') {
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throw new Error('dependency is not supplied');
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}
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if (typeof filename === 'undefined') {
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throw new Error('filename is not supplied');
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}
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if (typeof directory === 'undefined') {
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throw new Error('directory is not supplied');
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}
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const fileDir = path.dirname(filename);
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// Use the file's extension if necessary
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const ext = path.extname(dep) ? '' : path.extname(filename);
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if (!path.isAbsolute(dep)) {
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const sassDep = path.resolve(filename, dep) + ext;
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if (fs.existsSync(sassDep)) { return sassDep; }
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}
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// path.basename in case the dep is slashed: a/b/c should be a/b/_c.scss
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const isSlashed = dep.indexOf('/') !== -1;
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const depDir = isSlashed ? path.dirname(dep) : '';
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const depName = (isSlashed ? path.basename(dep) : dep) + ext;
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const relativeToFile = findDependency(path.resolve(fileDir, depDir), depName);
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if (relativeToFile) {
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return relativeToFile;
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}
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const directories = typeof directory === 'string' ? [directory] : directory;
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let i;
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for (i in directories) {
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const dir = directories[i];
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const relativeToDir = findDependency(path.resolve(dir, depDir), depName);
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if (relativeToDir) {
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return relativeToDir;
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}
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}
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// old versions returned a static path, if one could not be found
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// do the same, if `directory` is not an array
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if (typeof directory === 'string') {
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return path.resolve(directory, depDir, depName);
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}
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};
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