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index.js
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index.js
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"use strict";
let path = require('path');
let through = require('through2');
module.exports = function (options) {
let files = [];
return through.obj(onFile, onEnd);
function onFile(file, enc, cb) {
files.push(file);
cb();
}
function onEnd(cb) {
let sorted = sort(files, options);
for (let i = 0; i < sorted.length; i += 1) {
this.push(sorted[i]);
}
cb();
}
};
const TYPES = ['service', 'controller', 'directive', 'filter', 'routes', 'config', 'module'];
module.exports.sortFiles = sort;
function sort(files, options) {
options = options || {};
let base = options.base || '';
let types = options.types || TYPES;
let sorting = [];
let indexed = {};
files.forEach(function (file, index) {
if (isSubpath(base, file.path)) {
sorting.push(stats(base, file));
} else {
indexed[index] = file;
}
});
let sorted = sortFiles(sorting, types, options.special);
let result = [];
for (let i = 0, sortedIndex = 0; i < files.length; i += 1) {
let file = indexed[i];
if (!file) {
file = sorted[sortedIndex].file;
sortedIndex += 1;
}
result.push(file);
}
return result;
}
function isSubpath(base, subpath) {
return path
.relative(base, subpath)
.indexOf('..') === -1;
}
function sortFiles(files, types, special) {
let tree = buildTree(files);
return sortTree(tree, types, special);
}
function findOrCreateFolder(dir, parent) {
for (let i = 0; i < dir.length; i += 1) {
let name = dir[i];
let folder = parent.folders.find(f => f.name === name);
if (!folder) {
folder = {
name,
files: [],
folders: []
};
parent.folders.push(folder);
}
parent = folder;
}
return parent;
}
function buildTree(files) {
let folder;
let tree = {
files: [],
folders: []
};
files.forEach(file => {
folder = findOrCreateFolder(file.dir, tree);
folder.files.push(file);
});
return tree;
}
function specialSorter(a, b, special) {
let specialA = special.indexOf(a.name);
let specialB = special.indexOf(b.name);
if (specialA === -1 && specialB === -1) {
return 0;
}
if (specialA !== -1 && specialB !== -1) {
return specialA - specialB;
}
return specialA !== -1 ? -1 : 1;
}
function recurseSort(parent, types, result, special) {
parent.folders.sort((a, b) => {
if (special) {
let specialSort = specialSorter(a, b, special);
if (specialSort !== 0) {
return specialSort;
}
}
return a.name.localeCompare(b.name);
});
parent.folders.forEach(folder => recurseSort(folder, types, result));
parent.files.sort((a, b) => compareTypes(a.type, b.type, types));
parent.files.forEach(file => result.push(file));
}
function sortTree(tree, types, special) {
let result = [];
recurseSort(tree, types, result, special);
return result;
}
function compareTypes(typeA, typeB, types) {
let indexA = types.indexOf(typeA);
let indexB = types.indexOf(typeB);
return indexA - indexB;
}
function stats(base, file) {
let relative = path.relative(base, file.path);
let dir = path.dirname(relative);
let name = path.basename(relative, '.js');
let extension = path.extname(name);
return {
file: file,
dir: dir !== '.' ? dir.split(path.sep) : [],
name: name,
type: name !== 'module' ? extension.substr(1) : name
};
}