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Add support for custom importers similar to node-sass ones #5

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Add support for custom importers similar to node-sass ones #5

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32 changes: 30 additions & 2 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ var sassJs = require('sass.js'),
_ = require('lodash'),
path = require('path'),
fs = require('fs'),
utils = require('loader-utils'),

getNodeModuleDir = require('./lib/get-node-module-dir'),
getResolvedPath = require('./lib/get-resolved-path'),
Expand All @@ -16,8 +17,35 @@ module.exports = function(content) {

sassJs.importer(function(request, done) {
// Adapted from
// eslint-disable-next-line max-len
// eslint-disable-next-line max-len
// https://github.com/amiramw/grunt-contrib-sassjs/blob/a65f869df967a4e417c4260fd93239e4f0bc55ee/tasks/sass.js#L11

var options = utils.getOptions(self);

if (options && options.importer) {
if (!(options.importer instanceof Array)) {
options.importer = [ options.importer ];
}

options.importer.some((importer) => {
var imported = importer(request.current, request.previous);

if (imported.file !== null) {
request.current = imported.file;
request.resolved = imported.file;

return true;
}

if (imported.contents !== null) {
request.path = request.resolved;
request.content = imported.contents;

return true;
}
})
}

if (request.path) {
done();
} else if (request.resolved) {
Expand Down Expand Up @@ -84,4 +112,4 @@ function getRootNodeModulesDir(name) {
}
throw e;
}
}
}