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1 files changed, 71 insertions, 0 deletions

diff --git a/node_modules/mime/src/build.js b/node_modules/mime/src/build.js
new file mode 100755
index 00000000..c70bc658
--- /dev/null
+++ b/node_modules/mime/src/build.js
@@ -0,0 +1,71 @@
+#!/usr/bin/env node
+
+'use strict';
+
+var fs = require('fs');
+var path = require('path');
+var mimeScore = require('mime-score');
+
+var db = require('mime-db');
+var chalk = require('chalk');
+
+var STANDARD_FACET_SCORE = 900;
+
+var byExtension = {};
+
+// Clear out any conflict extensions in mime-db
+for (var type in db) {
+  var entry = db[type];
+  entry.type = type;
+  if (!entry.extensions) continue;
+
+  entry.extensions.forEach(function(ext) {
+    var drop;
+    var keep = entry;
+    if (ext in byExtension) {
+      var e0 = entry;
+      var e1 = byExtension[ext];
+
+      e0.pri = mimeScore(e0.type, e0.source);
+      e1.pri = mimeScore(e1.type, e1.source);
+
+      drop = e0.pri < e1.pri ? e0 : e1;
+      keep = e0.pri >= e1.pri ? e0 : e1;
+
+      // Prefix lower-priority extensions with '*'
+      drop.extensions = drop.extensions.map(function(e) {return e == ext ? '*' + e : e});
+
+      console.log(
+        ext + ': Preferring ' + chalk.green(keep.type) + ' (' + keep.pri +
+        ') over ' + chalk.red(drop.type) + ' (' + drop.pri + ')' + ' for ' + ext
+      );
+    }
+
+    // Cache the hightest ranking type for this extension
+    if (keep == entry) byExtension[ext] = entry;
+  });
+}
+
+function writeTypesFile(types, path) {
+  fs.writeFileSync(path, JSON.stringify(types));
+}
+
+// Segregate into standard and non-standard types based on facet per
+// https://tools.ietf.org/html/rfc6838#section-3.1
+var standard = {};
+var other = {};
+
+Object.keys(db).sort().forEach(function(k) {
+  var entry = db[k];
+
+  if (entry.extensions) {
+    if (mimeScore(entry.type, entry.source) >= STANDARD_FACET_SCORE) {
+      standard[entry.type] = entry.extensions;
+    } else {
+      other[entry.type] = entry.extensions;
+    }
+  }
+});
+
+writeTypesFile(standard, path.join(__dirname, '../types', 'standard.json'));
+writeTypesFile(other, path.join(__dirname, '../types', 'other.json'));