Merge pull request #680 from pattern-lab/dev

Pattern Lab Node Core 2.11.0

Author: bmuenzenmeyer

core/lib/data_loader.js

@@ -0,0 +1,63 @@
+"use strict";
+
+const glob = require('glob'),
+  _ = require('lodash'),
+  path = require('path'),
+  yaml = require('js-yaml');
+
+/**
+ * Loads a single config file, in yaml/json format.
+ *
+ * @param dataFilesPath - leave off the file extension.
+ * @param fsDep
+ * @returns {*}
+ */
+function loadFile(dataFilesPath, fsDep) {
+  const dataFilesFullPath = dataFilesPath + '*.{json,yml,yaml}';
+
+  if (dataFilesPath) {
+    const dataFiles = glob.sync(dataFilesFullPath),
+      dataFile = _.head(dataFiles);
+
+    if (dataFile && fsDep.existsSync(path.resolve(dataFile))) {
+      return yaml.safeLoad(fsDep.readFileSync(path.resolve(dataFile), 'utf8'));
+    }
+  }
+
+  return null;
+}
+
+/**
+ * Loads a set of config files from a folder, in yaml/json format.
+ *
+ * @param dataFilesPath - leave off the file extension
+ * @param excludeFileNames - leave off the file extension
+ * @param fsDep
+ * @returns Object, with merged data files, empty object if no files.
+ */
+function loadDataFromFolder(dataFilesPath, excludeFileNames, fsDep) {
+  const dataFilesFullPath = dataFilesPath + '*.{json,yml,yaml}',
+    excludeFullPath = dataFilesPath + excludeFileNames + '.{json,yml,yaml}';
+
+  let globOptions = {};
+  if (excludeFileNames) {
+    globOptions.ignore = [excludeFullPath];
+  }
+
+  const dataFiles = glob.sync(dataFilesFullPath, globOptions);
+  let mergeObject = {};
+
+  dataFiles.forEach(function (filePath) {
+    let jsonData = yaml.safeLoad(fsDep.readFileSync(path.resolve(filePath), 'utf8'));
+    mergeObject = _.merge(mergeObject, jsonData);
+  });
+
+  return mergeObject;
+}
+
+module.exports = function configFileLoader() {
+  return {
+    loadDataFromFile: loadFile,
+    loadDataFromFolder: loadDataFromFolder
+  };
+};

core/lib/object_factory.js

@@ -59,7 +59,7 @@ var Pattern = function (relPath, data, patternlab) {
 
   // Let's calculate the verbose name ahead of time! We don't use path.sep here
   // on purpose. This isn't a file name!
-  this.verbosePartial = this.subdir + '/' + this.fileName;
+  this.verbosePartial = this.subdir.split(path.sep).join('/') + '/' + this.fileName;
 
   this.isPattern = true;
   this.isFlatPattern = this.patternGroup === this.patternSubGroup;

core/lib/parameter_hunter.js

@@ -50,9 +50,10 @@ var parameter_hunter = function () {
    *   * Return paramStringWellFormed.
    *
    * @param {string} pString
+   * @param {object} patternlab
    * @returns {string} paramStringWellFormed
    */
-  function paramToJson(pString) {
+  function paramToJson(pString, patternlab) {
     var colonPos = -1;
     var keys = [];
     var paramString = pString; // to not reassign param
@@ -62,6 +63,17 @@ var parameter_hunter = function () {
     var values = [];
     var wrapper;
 
+    // attempt to parse the data in case it is already well formed JSON
+    try {
+      paramStringWellFormed = JSON.stringify(JSON.parse(pString));
+      return paramStringWellFormed;
+    } catch (err) {
+      //todo this might be a good candidate for a different log level, should we implement that someday
+      if (patternlab.config.debug) {
+        console.log(`Not valid JSON found for passed pattern parameter ${pString} will attempt to parse manually...`);
+      }
+    }
+
     //replace all escaped double-quotes with escaped unicode
     paramString = paramString.replace(/\\"/g, '\\u0022');
 
@@ -253,7 +265,7 @@ var parameter_hunter = function () {
         var leftParen = pMatch.indexOf('(');
         var rightParen = pMatch.lastIndexOf(')');
         var paramString = '{' + pMatch.substring(leftParen + 1, rightParen) + '}';
-        var paramStringWellFormed = paramToJson(paramString);
+        var paramStringWellFormed = paramToJson(paramString, patternlab);
 
         var paramData = {};
         var globalData = {};

core/lib/pattern_assembler.js

@@ -8,6 +8,7 @@ var path = require('path'),
   pph = require('./pseudopattern_hunter'),
   mp = require('./markdown_parser'),
   plutils = require('./utilities'),
+  dataLoader = require('./data_loader')(),
   patternEngines = require('./pattern_engines'),
   lh = require('./lineage_hunter'),
   lih = require('./list_item_hunter'),
@@ -34,7 +35,7 @@ var pattern_assembler = function () {
     for (var i = 0; i < patternlab.patterns.length; i++) {
       switch (partialName) {
         case patternlab.patterns[i].relPath:
-        case patternlab.patterns[i].subdir + '/' + patternlab.patterns[i].fileName:
+        case patternlab.patterns[i].verbosePartial:
           return patternlab.patterns[i];
       }
     }
@@ -324,16 +325,13 @@ var pattern_assembler = function () {
 
     //look for a json file for this template
     try {
-      var jsonFilename = path.resolve(patternsPath, currentPattern.subdir, currentPattern.fileName + ".json");
-      try {
-        var jsonFilenameStats = fs.statSync(jsonFilename);
-      } catch (err) {
-        //not a file
-      }
-      if (jsonFilenameStats && jsonFilenameStats.isFile()) {
-        currentPattern.jsonFileData = fs.readJSONSync(jsonFilename);
+      var jsonFilename = path.resolve(patternsPath, currentPattern.subdir, currentPattern.fileName);
+      let configData = dataLoader.loadDataFromFile(jsonFilename, fs);
+
+      if (configData) {
+        currentPattern.jsonFileData = configData;
         if (patternlab.config.debug) {
-          console.log('processPatternIterative: found pattern-specific data.json for ' + currentPattern.patternPartial);
+          console.log('processPatternIterative: found pattern-specific config data for ' + currentPattern.patternPartial);
         }
       }
     }
@@ -344,17 +342,14 @@ var pattern_assembler = function () {
 
     //look for a listitems.json file for this template
     try {
-      var listJsonFileName = path.resolve(patternsPath, currentPattern.subdir, currentPattern.fileName + ".listitems.json");
-      try {
-        var listJsonFileStats = fs.statSync(listJsonFileName);
-      } catch (err) {
-        //not a file
-      }
-      if (listJsonFileStats && listJsonFileStats.isFile()) {
-        currentPattern.listitems = fs.readJSONSync(listJsonFileName);
+      var listJsonFileName = path.resolve(patternsPath, currentPattern.subdir, currentPattern.fileName + ".listitems");
+      let listItemsConfig = dataLoader.loadDataFromFile(listJsonFileName, fs);
+
+      if (listItemsConfig) {
+        currentPattern.listitems = listItemsConfig;
         buildListItems(currentPattern);
         if (patternlab.config.debug) {
-          console.log('found pattern-specific listitems.json for ' + currentPattern.patternPartial);
+          console.log('found pattern-specific listitems config for ' + currentPattern.patternPartial);
         }
       }
     }

core/lib/pattern_registry.js

@@ -62,7 +62,7 @@ PatternRegistry.prototype = {
     for (let thisPattern of patterns) {
       switch (partialName) {
         case thisPattern.relPath:
-        case thisPattern.subdir + '/' + thisPattern.fileName:
+        case thisPattern.verbosePartial:
           return thisPattern;
       }
     }

core/lib/patternlab.js

@@ -1,5 +1,5 @@
 /*
- * patternlab-node - v2.10.0 - 2017
+ * patternlab-node - v2.11.0 - 2017
  *
  * Brian Muenzenmeyer, Geoff Pursell, Raphael Okon, tburny and the web community.
  * Licensed under the MIT license.
@@ -11,7 +11,6 @@
 "use strict";
 
 var diveSync = require('diveSync'),
-  glob = require('glob'),
   _ = require('lodash'),
   path = require('path'),
   chalk = require('chalk'),
@@ -20,6 +19,7 @@ var diveSync = require('diveSync'),
   pm = require('./plugin_manager'),
   fs = require('fs-extra'),
   packageInfo = require('../../package.json'),
+  dataLoader = require('./data_loader')(),
   plutils = require('./utilities'),
   jsonCopy = require('./json_copy'),
   ui = require('./ui_builder'),
@@ -43,14 +43,14 @@ console.log(
 var patternEngines = require('./pattern_engines');
 var EventEmitter = require('events').EventEmitter;
 
+/**
+ * Given a path, load info from the folder to compile into a single config object.
+ * @param dataFilesPath
+ * @param fsDep
+ * @returns {{}}
+ */
 function buildPatternData(dataFilesPath, fsDep) {
-  var dataFiles = glob.sync(dataFilesPath + '*.json', {"ignore" : [dataFilesPath + 'listitems.json']});
-  var mergeObject = {};
-  dataFiles.forEach(function (filePath) {
-    var jsonData = fsDep.readJSONSync(path.resolve(filePath), 'utf8');
-    mergeObject = _.merge(mergeObject, jsonData);
-  });
-  return mergeObject;
+  return dataLoader.loadDataFromFolder(dataFilesPath, 'listitems', fsDep);
 }
 
 // GTP: these two diveSync pattern processors factored out so they can be reused
@@ -504,9 +504,9 @@ var patternlab_engine = function (config) {
       patternlab.data = {};
     }
     try {
-      patternlab.listitems = fs.readJSONSync(path.resolve(paths.source.data, 'listitems.json'));
+      patternlab.listitems = dataLoader.loadDataFromFile(path.resolve(paths.source.data, 'listitems.{json,yml,yaml}'));
     } catch (ex) {
-      plutils.warning('WARNING: missing or malformed ' + paths.source.data + 'listitems.json file.  Pattern Lab may not work without this file.');
+      plutils.warning('WARNING: missing or malformed ' + paths.source.data + 'listitems file.  Pattern Lab may not work without this file.');
       patternlab.listitems = {};
     }
     try {

package.json

@@ -1,7 +1,7 @@
 {
   "name": "patternlab-node",
   "description": "Pattern Lab is a collection of tools to help you create atomic design systems. This is the node command line interface (CLI).",
-  "version": "2.10.0",
+  "version": "2.11.0",
   "main": "./core/lib/patternlab.js",
   "dependencies": {
     "chalk": "^1.1.3",

test/data_loader_tests.js

@@ -0,0 +1,13 @@
+'use strict';
+
+const tap = require('tap');
+
+tap.test('loadDataFromFile - Load ', function(test){
+  const fs = require('fs-extra'),
+    dataLoader = require('../core/lib/data_loader')(),
+    data_dir = './test/files/_data/';
+
+  let data = dataLoader.loadDataFromFile(data_dir + 'foo', fs);
+  test.equals(data.foo, 'bar');
+  test.end();
+});

test/files/_data/data.json

@@ -1,2 +1,2 @@
-{ "data" : "test" }
+{ "data" : "test", "from_json" : "from_json" }
 

test/files/_data/data.yaml

@@ -0,0 +1 @@
+from_yaml: "from_yaml"