fix: Bundle less lodash

- Use lodash sub modules
- Drop fork

lib/ruby/gem-requirement.js

@@ -1,4 +1,8 @@
-const _ = require('@snyk/lodash');
+const _escapeRegExp = require('lodash.escaperegexp');
+const _isEmpty = require('lodash.isempty');
+const _flatten = require('lodash.flatten');
+const _uniq = require('lodash.uniq');
+
 const GemVersion = require('./gem-version');
 
 const OPS = {
@@ -11,7 +15,7 @@ const OPS = {
   '~>': (v, r) => v.compare(r) >= 0 && v.release().compare(r.bump()) < 0,
 };
 
-const quoted  = Object.keys(OPS).map(k => _.escapeRegExp(k)).join('|');
+const quoted  = Object.keys(OPS).map(k => _escapeRegExp(k)).join('|');
 const PATTERN_RAW = `\\s*(${quoted})?\\s*(${GemVersion.VERSION_PATTERN})\\s*`;
 // --
 // A regular expression that matches a requirement
@@ -78,9 +82,9 @@ module.exports = class GemRequirement {
   // same as <tt>">= 0"</tt>.
 
   constructor(...requirements) {
-    requirements = _(requirements).flatten().filter(Boolean).uniq().value();
+    requirements = _uniq(_flatten(requirements));
 
-    if (_.isEmpty(requirements)) {
+    if (_isEmpty(requirements)) {
       this.requirements = [DefaultRequirement];
     } else {
       this.requirements = requirements.map(GemRequirement.parse);

lib/ruby/gem-version.js

@@ -147,7 +147,8 @@
 //
 // For the last example, single-digit versions are automatically extended with
 // a zero to give a sensible result.
-const _ = require('@snyk/lodash');
+const _isNumber = require('lodash.isnumber');
+const _isString = require('lodash.isstring');
 
 const VERSION_PATTERN = '[0-9]+(\.[0-9a-zA-Z]+)*(-[0-9A-Za-z-]+(\.[0-9A-Za-z-]+)*)?';
 const ANCHORED_VERSION_PATTERN = new RegExp(`^\\s*(${VERSION_PATTERN})?\\s*$`);
@@ -379,8 +380,8 @@ class GemVersion {
         continue;
       }
 
-      if (_.isString(lhs) && _.isNumber(rhs)) { return -1; }
-      if (_.isNumber(lhs) && _.isString(rhs)) { return 1; }
+      if (_isString(lhs) && _isNumber(rhs)) { return -1; }
+      if (_isNumber(lhs) && _isString(rhs)) { return 1; }
 
       if (lhs < rhs) { return -1; }
       if (lhs > rhs) { return 1; }

package.json

@@ -19,6 +19,11 @@
     "node": ">=8"
   },
   "dependencies": {
-    "@snyk/lodash": "4.17.15-patch"
+    "lodash.escaperegexp": "^4.1.0",
+    "lodash.flatten": "^4.4.0",
+    "lodash.isempty": "^4.4.0",
+    "lodash.isnumber": "^3.0.0",
+    "lodash.isstring": "^4.0.0",
+    "lodash.uniq": "^4.5.0"
   }
 }