138 lines
2.7 KiB
JavaScript
138 lines
2.7 KiB
JavaScript
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/*******************************
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Summarize Docs
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*******************************/
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var
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// node dependencies
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console = require('better-console'),
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fs = require('fs'),
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YAML = require('yamljs')
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;
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var data = {};
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/**
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* Test for prefix in string.
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* @param {string} str
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* @param {string} prefix
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* @return {boolean}
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*/
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function startsWith(str, prefix) {
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return str.indexOf(prefix) === 0;
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};
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function inArray(needle, haystack) {
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var length = haystack.length;
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for(var i = 0; i < length; i++) {
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if(haystack[i] == needle) return true;
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}
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return false;
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}
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/**
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* Parses a file for metadata and stores result in data object.
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* @param {File} file - object provided by map-stream.
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* @param {function(?,File)} - callback provided by map-stream to
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* reply when done.
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*/
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function parser(file, callback) {
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// file exit conditions
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if(file.isNull()) {
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return callback(null, file); // pass along
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}
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if(file.isStream()) {
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return callback(new Error('Streaming not supported'));
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}
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try {
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var
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/** @type {string} */
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text = String(file.contents.toString('utf8')),
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lines = text.split('\n'),
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filename = file.path.substring(0, file.path.length - 4),
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key = 'server/documents',
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position = filename.indexOf(key)
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;
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// exit conditions
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if(!lines) {
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return;
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}
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if(position < 0) {
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return callback(null, file);
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}
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filename = filename.substring(position + key.length + 1, filename.length);
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var
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lineCount = lines.length,
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active = false,
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yaml = [],
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categories = [
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'UI Element',
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'UI Global',
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'UI Collection',
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'UI View',
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'UI Module',
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'UI Behavior'
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],
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index,
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meta,
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line
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;
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for(index = 0; index < lineCount; index++) {
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line = lines[index];
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// Wait for metadata block to begin
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if(!active) {
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if(startsWith(line, '---')) {
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active = true;
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}
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continue;
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}
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// End of metadata block, stop parsing.
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if(startsWith(line, '---')) {
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break;
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}
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yaml.push(line);
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}
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// Parse yaml.
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meta = YAML.parse(yaml.join('\n'));
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if(meta && meta.type && meta.title && inArray(meta.type, categories) ) {
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meta.category = meta.type;
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meta.filename = filename;
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meta.url = '/' + filename;
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meta.title = meta.title;
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// Primary key will by filepath
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data[meta.element] = meta;
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}
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else {
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// skip
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// console.log(meta);
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}
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}
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catch(error) {
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console.log(error, filename);
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}
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callback(null, file);
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}
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/**
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* Export function expected by map-stream.
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*/
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module.exports = {
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result : data,
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parser : parser
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};
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