139 lines
5.0 KiB
JavaScript
139 lines
5.0 KiB
JavaScript
var path = require('path'),
|
|
fs = require('./fs'),
|
|
PromiseConstructor = typeof Promise === 'undefined' ? require('promise') : Promise,
|
|
AbstractFileManager = require("../less/environment/abstract-file-manager.js");
|
|
|
|
var FileManager = function() {
|
|
this.files = {};
|
|
};
|
|
|
|
FileManager.prototype = new AbstractFileManager();
|
|
|
|
FileManager.prototype.supports = function(filename, currentDirectory, options, environment) {
|
|
return true;
|
|
};
|
|
FileManager.prototype.supportsSync = function(filename, currentDirectory, options, environment) {
|
|
return true;
|
|
};
|
|
|
|
FileManager.prototype.loadFile = function(filename, currentDirectory, options, environment, callback) {
|
|
|
|
var fullFilename,
|
|
isAbsoluteFilename = this.isPathAbsolute(filename),
|
|
filenamesTried = [],
|
|
self = this,
|
|
prefix = filename.slice(0, 1),
|
|
explicit = prefix === "." || prefix === "/",
|
|
result = null;
|
|
|
|
options = options || {};
|
|
|
|
var paths = isAbsoluteFilename ? [''] : [currentDirectory];
|
|
|
|
if (options.paths) { paths.push.apply(paths, options.paths); }
|
|
|
|
// Search node_modules
|
|
if (!explicit) { paths.push.apply(paths, this.modulePaths); }
|
|
|
|
if (!isAbsoluteFilename && paths.indexOf('.') === -1) { paths.push('.'); }
|
|
|
|
var prefixes = options.prefixes || [''];
|
|
var fileParts = this.extractUrlParts(filename);
|
|
|
|
if (options.syncImport) {
|
|
getFileData(returnData, returnData);
|
|
if (callback) {
|
|
callback(result.error, result);
|
|
}
|
|
else {
|
|
return result;
|
|
}
|
|
}
|
|
else {
|
|
// promise is guaranteed to be asyncronous
|
|
// which helps as it allows the file handle
|
|
// to be closed before it continues with the next file
|
|
return new PromiseConstructor(getFileData);
|
|
}
|
|
|
|
function returnData(data) {
|
|
if (!data.filename) {
|
|
result = { error: data };
|
|
}
|
|
else {
|
|
result = data;
|
|
}
|
|
}
|
|
|
|
function getFileData(fulfill, reject) {
|
|
(function tryPathIndex(i) {
|
|
if (i < paths.length) {
|
|
(function tryPrefix(j) {
|
|
if (j < prefixes.length) {
|
|
fullFilename = fileParts.rawPath + prefixes[j] + fileParts.filename;
|
|
|
|
if (paths[i]) {
|
|
fullFilename = path.join(paths[i], fullFilename);
|
|
}
|
|
|
|
if (paths[i].indexOf('node_modules') > -1) {
|
|
try {
|
|
fullFilename = require.resolve(fullFilename);
|
|
}
|
|
catch (e) {}
|
|
}
|
|
|
|
fullFilename = options.ext ? self.tryAppendExtension(fullFilename, options.ext) : fullFilename;
|
|
|
|
if (self.files[fullFilename]) {
|
|
fulfill({ contents: self.files[fullFilename], filename: fullFilename});
|
|
}
|
|
else {
|
|
var readFileArgs = [fullFilename];
|
|
if (!options.rawBuffer) {
|
|
readFileArgs.push('utf-8');
|
|
}
|
|
if (options.syncImport) {
|
|
try {
|
|
var data = fs.readFileSync.apply(this, readFileArgs);
|
|
self.files[fullFilename] = data;
|
|
fulfill({ contents: data, filename: fullFilename});
|
|
}
|
|
catch (e) {
|
|
filenamesTried.push(fullFilename);
|
|
return tryPrefix(j + 1);
|
|
}
|
|
}
|
|
else {
|
|
readFileArgs.push(function(e, data) {
|
|
if (e) {
|
|
filenamesTried.push(fullFilename);
|
|
return tryPrefix(j + 1);
|
|
}
|
|
self.files[fullFilename] = data;
|
|
fulfill({ contents: data, filename: fullFilename});
|
|
});
|
|
fs.readFile.apply(this, readFileArgs);
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
else {
|
|
tryPathIndex(i + 1);
|
|
}
|
|
})(0);
|
|
} else {
|
|
reject({ type: 'File', message: "'" + filename + "' wasn't found. Tried - " + filenamesTried.join(",") });
|
|
}
|
|
}(0));
|
|
}
|
|
};
|
|
|
|
FileManager.prototype.loadFileSync = function(filename, currentDirectory, options, environment) {
|
|
options.syncImport = true;
|
|
return this.loadFile(filename, currentDirectory, options, environment);
|
|
};
|
|
|
|
module.exports = FileManager;
|