jlukic
9 years ago
5 changed files with 134 additions and 3 deletions
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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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/** |
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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 parseFile(file, cb) { |
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if (file.isNull()) |
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return cb(null, file); // pass along
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if (file.isStream()) |
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return cb(new Error("Streaming not supported")); |
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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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if (!lines) |
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return; |
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var filename = file.path; |
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filename = filename.substring(0, filename.length - 4); |
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var key = 'server/documents'; |
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var position = filename.indexOf(key); |
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if (position < 0) |
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return cb(null, file); |
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filename = filename.substring(position + key.length + 1, filename.length); |
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//console.log('Parsing ' + filename);
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var n = lines.length, |
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active = false, |
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yaml = [], |
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line |
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; |
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var line; |
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for (var i = 0; i < n; i++) { |
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line = lines[i]; |
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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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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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yaml.push(line); |
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} |
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// Parse yaml.
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var meta = YAML.parse(yaml.join('\n')); |
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meta.category = meta.type; |
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meta.filename = filename; |
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meta._title = meta.title; // preserve original, just in case
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meta.title = meta.type + ': ' + meta.title; |
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// Primary key will by filepath
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data[filename] = meta; |
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//console.log("Parsed " + filename + ": " + JSON.stringify(meta));
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} catch(e) { |
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console.log(e); |
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} |
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cb(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: parseFile |
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}; |
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