refactor stat_graph_contributors_util to es6 module syntax

app/assets/javascripts/graphs/graphs_bundle.js

 require('./stat_graph_contributors_graph');
-require('./stat_graph_contributors_util');
 require('./stat_graph_contributors');

app/assets/javascripts/graphs/stat_graph_contributors.js

@@ -2,7 +2,8 @@
 /* global ContributorsGraph */
 /* global ContributorsAuthorGraph */
 /* global ContributorsMasterGraph */
-/* global ContributorsStatGraphUtil */
+import ContributorsStatGraphUtil from './stat_graph_contributors_util';
+
 /* global d3 */
 
 window.d3 = require('d3');

app/assets/javascripts/graphs/stat_graph_contributors_util.js

 /* eslint-disable func-names, space-before-function-paren, object-shorthand, no-var, one-var, camelcase, one-var-declaration-per-line, comma-dangle, no-param-reassign, no-return-assign, quotes, prefer-arrow-callback, wrap-iife, consistent-return, no-unused-vars, max-len, no-cond-assign, no-else-return, max-len */
-(function() {
-  window.ContributorsStatGraphUtil = {
-    parse_log: function(log) {
-      var by_author, by_email, data, entry, i, len, total, normalized_email;
-      total = {};
-      by_author = {};
-      by_email = {};
-      for (i = 0, len = log.length; i < len; i += 1) {
-        entry = log[i];
-        if (total[entry.date] == null) {
-          this.add_date(entry.date, total);
-        }
-        normalized_email = entry.author_email.toLowerCase();
-        data = by_author[entry.author_name] || by_email[normalized_email];
-        if (data == null) {
-          data = this.add_author(entry, by_author, by_email);
-        }
-        if (!data[entry.date]) {
-          this.add_date(entry.date, data);
-        }
-        this.store_data(entry, total[entry.date], data[entry.date]);
-      }
-      total = _.toArray(total);
-      by_author = _.toArray(by_author);
-      return {
-        total: total,
-        by_author: by_author
-      };
-    },
-    add_date: function(date, collection) {
-      collection[date] = {};
-      return collection[date].date = date;
-    },
-    add_author: function(author, by_author, by_email) {
-      var data, normalized_email;
-      data = {};
-      data.author_name = author.author_name;
-      data.author_email = author.author_email;
-      normalized_email = author.author_email.toLowerCase();
-      by_author[author.author_name] = data;
-      by_email[normalized_email] = data;
-      return data;
-    },
-    store_data: function(entry, total, by_author) {
-      this.store_commits(total, by_author);
-      this.store_additions(entry, total, by_author);
-      return this.store_deletions(entry, total, by_author);
-    },
-    store_commits: function(total, by_author) {
-      this.add(total, "commits", 1);
-      return this.add(by_author, "commits", 1);
-    },
-    add: function(collection, field, value) {
-      if (collection[field] == null) {
-        collection[field] = 0;
-      }
-      return collection[field] += value;
-    },
-    store_additions: function(entry, total, by_author) {
-      if (entry.additions == null) {
-        entry.additions = 0;
+
+export default {
+  parse_log: function(log) {
+    var by_author, by_email, data, entry, i, len, total, normalized_email;
+    total = {};
+    by_author = {};
+    by_email = {};
+    for (i = 0, len = log.length; i < len; i += 1) {
+      entry = log[i];
+      if (total[entry.date] == null) {
+        this.add_date(entry.date, total);
       }
-      this.add(total, "additions", entry.additions);
-      return this.add(by_author, "additions", entry.additions);
-    },
-    store_deletions: function(entry, total, by_author) {
-      if (entry.deletions == null) {
-        entry.deletions = 0;
+      normalized_email = entry.author_email.toLowerCase();
+      data = by_author[entry.author_name] || by_email[normalized_email];
+      if (data == null) {
+        data = this.add_author(entry, by_author, by_email);
       }
-      this.add(total, "deletions", entry.deletions);
-      return this.add(by_author, "deletions", entry.deletions);
-    },
-    get_total_data: function(parsed_log, field) {
-      var log, total_data;
-      log = parsed_log.total;
-      total_data = this.pick_field(log, field);
-      return _.sortBy(total_data, function(d) {
-        return d.date;
-      });
-    },
-    pick_field: function(log, field) {
-      var total_data;
-      total_data = [];
-      _.each(log, function(d) {
-        return total_data.push(_.pick(d, [field, 'date']));
-      });
-      return total_data;
-    },
-    get_author_data: function(parsed_log, field, date_range) {
-      var author_data, log;
-      if (date_range == null) {
-        date_range = null;
-      }
-      log = parsed_log.by_author;
-      author_data = [];
-      _.each(log, (function(_this) {
-        return function(log_entry) {
-          var parsed_log_entry;
-          parsed_log_entry = _this.parse_log_entry(log_entry, field, date_range);
-          if (!_.isEmpty(parsed_log_entry.dates)) {
-            return author_data.push(parsed_log_entry);
-          }
-        };
-      })(this));
-      return _.sortBy(author_data, function(d) {
-        return d[field];
-      }).reverse();
-    },
-    parse_log_entry: function(log_entry, field, date_range) {
-      var parsed_entry;
-      parsed_entry = {};
-      parsed_entry.author_name = log_entry.author_name;
-      parsed_entry.author_email = log_entry.author_email;
-      parsed_entry.dates = {};
-      parsed_entry.commits = parsed_entry.additions = parsed_entry.deletions = 0;
-      _.each(_.omit(log_entry, 'author_name', 'author_email'), (function(_this) {
-        return function(value, key) {
-          if (_this.in_range(value.date, date_range)) {
-            parsed_entry.dates[value.date] = value[field];
-            parsed_entry.commits += value.commits;
-            parsed_entry.additions += value.additions;
-            return parsed_entry.deletions += value.deletions;
-          }
-        };
-      })(this));
-      return parsed_entry;
-    },
-    in_range: function(date, date_range) {
-      var ref;
-      if (date_range === null || (date_range[0] <= (ref = new Date(date)) && ref <= date_range[1])) {
-        return true;
-      } else {
-        return false;
+      if (!data[entry.date]) {
+        this.add_date(entry.date, data);
       }
+      this.store_data(entry, total[entry.date], data[entry.date]);
+    }
+    total = _.toArray(total);
+    by_author = _.toArray(by_author);
+    return {
+      total: total,
+      by_author: by_author
+    };
+  },
+  add_date: function(date, collection) {
+    collection[date] = {};
+    return collection[date].date = date;
+  },
+  add_author: function(author, by_author, by_email) {
+    var data, normalized_email;
+    data = {};
+    data.author_name = author.author_name;
+    data.author_email = author.author_email;
+    normalized_email = author.author_email.toLowerCase();
+    by_author[author.author_name] = data;
+    by_email[normalized_email] = data;
+    return data;
+  },
+  store_data: function(entry, total, by_author) {
+    this.store_commits(total, by_author);
+    this.store_additions(entry, total, by_author);
+    return this.store_deletions(entry, total, by_author);
+  },
+  store_commits: function(total, by_author) {
+    this.add(total, "commits", 1);
+    return this.add(by_author, "commits", 1);
+  },
+  add: function(collection, field, value) {
+    if (collection[field] == null) {
+      collection[field] = 0;
+    }
+    return collection[field] += value;
+  },
+  store_additions: function(entry, total, by_author) {
+    if (entry.additions == null) {
+      entry.additions = 0;
+    }
+    this.add(total, "additions", entry.additions);
+    return this.add(by_author, "additions", entry.additions);
+  },
+  store_deletions: function(entry, total, by_author) {
+    if (entry.deletions == null) {
+      entry.deletions = 0;
+    }
+    this.add(total, "deletions", entry.deletions);
+    return this.add(by_author, "deletions", entry.deletions);
+  },
+  get_total_data: function(parsed_log, field) {
+    var log, total_data;
+    log = parsed_log.total;
+    total_data = this.pick_field(log, field);
+    return _.sortBy(total_data, function(d) {
+      return d.date;
+    });
+  },
+  pick_field: function(log, field) {
+    var total_data;
+    total_data = [];
+    _.each(log, function(d) {
+      return total_data.push(_.pick(d, [field, 'date']));
+    });
+    return total_data;
+  },
+  get_author_data: function(parsed_log, field, date_range) {
+    var author_data, log;
+    if (date_range == null) {
+      date_range = null;
+    }
+    log = parsed_log.by_author;
+    author_data = [];
+    _.each(log, (function(_this) {
+      return function(log_entry) {
+        var parsed_log_entry;
+        parsed_log_entry = _this.parse_log_entry(log_entry, field, date_range);
+        if (!_.isEmpty(parsed_log_entry.dates)) {
+          return author_data.push(parsed_log_entry);
+        }
+      };
+    })(this));
+    return _.sortBy(author_data, function(d) {
+      return d[field];
+    }).reverse();
+  },
+  parse_log_entry: function(log_entry, field, date_range) {
+    var parsed_entry;
+    parsed_entry = {};
+    parsed_entry.author_name = log_entry.author_name;
+    parsed_entry.author_email = log_entry.author_email;
+    parsed_entry.dates = {};
+    parsed_entry.commits = parsed_entry.additions = parsed_entry.deletions = 0;
+    _.each(_.omit(log_entry, 'author_name', 'author_email'), (function(_this) {
+      return function(value, key) {
+        if (_this.in_range(value.date, date_range)) {
+          parsed_entry.dates[value.date] = value[field];
+          parsed_entry.commits += value.commits;
+          parsed_entry.additions += value.additions;
+          return parsed_entry.deletions += value.deletions;
+        }
+      };
+    })(this));
+    return parsed_entry;
+  },
+  in_range: function(date, date_range) {
+    var ref;
+    if (date_range === null || (date_range[0] <= (ref = new Date(date)) && ref <= date_range[1])) {
+      return true;
+    } else {
+      return false;
     }
-  };
-}).call(window);
+  }
+};

spec/javascripts/graphs/stat_graph_contributors_util_spec.js

 /* eslint-disable quotes, no-var, camelcase, object-property-newline, comma-dangle, max-len, vars-on-top, quote-props */
-/* global ContributorsStatGraphUtil */
 
-require('~/graphs/stat_graph_contributors_util');
+import ContributorsStatGraphUtil from '~/graphs/stat_graph_contributors_util';
 
 describe("ContributorsStatGraphUtil", function () {
   describe("#parse_log", function () {