🔧 Update vulnerable gems (#2)

* 🔧 Update vulnerable gems

.rubocop.yml

@@ -0,0 +1,239 @@
+Rails:
+  Enabled: false
+
+AllCops:
+  Include:
+    - 'lib/**/*.rb'
+  Exclude:
+    - 'bin/*'
+    - '.bundle/**/*'
+    - 'spec/**/*.rb'
+
+# Pending
+Style/HashSyntax:
+  Description: >-
+                 Prefer Ruby 1.9 hash syntax { a: 1, b: 2 } over 1.8 syntax
+                 { :a => 1, :b => 2 }.
+  Enabled: true
+  EnforcedStyle: ruby19
+  SupportedStyles:
+    - ruby19
+    - hash_rockets
+
+# Modified
+Metrics/LineLength:
+  Description: 'Limit lines to 80 characters.'
+  Enabled: true
+  Max: 100
+
+Metrics/AbcSize:
+  Max: 25
+
+# Pending
+Layout/SpaceBeforeFirstArg:
+  Description: >-
+                 Checks that exactly one space is used between a method name
+                 and the first argument for method calls without parentheses.
+  Enabled: false
+
+# Disabled
+Style/Documentation:
+  Description: 'Document classes and non-namespace modules.'
+  Enabled: false
+
+# Modified
+Metrics/MethodLength:
+  Description: 'Avoid methods longer than 10 lines of code.'
+  CountComments: false  # count full line comments?
+  Enabled: true
+  Max: 100
+
+# Disabled
+Style/ClassAndModuleChildren:
+  Description: 'Checks style of children classes and modules.'
+  Enabled: false
+  # Checks the style of children definitions at classes and modules.
+  #
+  # Basically there are two different styles:
+  #
+  # `nested` - have each child on a separate line
+  #   class Foo
+  #     class Bar
+  #     end
+  #   end
+  #
+  # `compact` - combine definitions as much as possible
+  #   class Foo::Bar
+  #   end
+  #
+  # The compact style is only forced, for classes / modules with one child.
+  EnforcedStyle: nested
+  SupportedStyles:
+    - nested
+    - compact
+
+# Disabled
+Style/Lambda:
+  Description: 'Use the new lambda literal syntax for single-line blocks.'
+  Enabled: false
+
+# Disabled
+Style/MethodCallWithoutArgsParentheses:
+  Description: 'Do not use parentheses for method calls with no arguments.'
+  Enabled: false
+
+# Modified
+Style/PercentLiteralDelimiters:
+  Description: 'Use `%`-literal delimiters consistently'
+  Enabled: true
+  PreferredDelimiters:
+    '%':  ()
+    '%i': '[]'
+    '%q': ()
+    '%Q': ()
+    '%r': '{}'
+    '%s': ()
+    '%w': '[]'
+    '%W': '[]'
+    '%x': ()
+
+# Modified
+# Avoid complex methods.
+Metrics/CyclomaticComplexity:
+  Description: 'Avoid complex methods.'
+  Enabled: true
+  Max: 15
+
+# Disabled
+Style/AndOr:
+  Description: 'Use &&/|| instead of and/or.'
+  Enabled: false
+
+# Modified
+# Align with the style guide.
+Style/CollectionMethods:
+  Description: 'Preferred collection methods.'
+  Enabled: true
+  # Mapping from undesired method to desired_method
+  # e.g. to use `detect` over `find`:
+  #
+  # CollectionMethods:
+  #   PreferredMethods:
+  #     find: detect
+  PreferredMethods:
+    collect: 'map'
+    collect!: 'map!'
+    # inject: 'reduce'
+    detect: 'find'
+    find_all: 'select'
+
+# Disabled
+Style/LineEndConcatenation:
+  Description: >-
+                 Use \ instead of + or << to concatenate two string literals at
+                 line end.
+  Enabled: false
+
+# Modified
+Metrics/ClassLength:
+  Description: 'Avoid classes longer than 100 lines of code.'
+  Enabled: true
+  CountComments: false  # count full line comments?
+  Max: 1000
+
+# Modified
+# Align the elements of a hash literal if they span more than one line.
+Layout/AlignHash:
+  Description: >-
+                 Align the elements of a hash literal if they span more than
+                 one line.
+  Enabled: true
+  # Alignment of entries using hash rocket as separator. Valid values are:
+  #
+  # key - left alignment of keys
+  #   'a' => 2
+  #   'bb' => 3
+  # separator - alignment of hash rockets, keys are right aligned
+  #    'a' => 2
+  #   'bb' => 3
+  # table - left alignment of keys, hash rockets, and values
+  #   'a'  => 2
+  #   'bb' => 3
+  EnforcedHashRocketStyle: table
+  # Alignment of entries using colon as separator. Valid values are:
+  #
+  # key - left alignment of keys
+  #   a: 0
+  #   bb: 1
+  # separator - alignment of colons, keys are right aligned
+  #    a: 0
+  #   bb: 1
+  # table - left alignment of keys and values
+  #   a:  0
+  #   bb: 1
+  EnforcedColonStyle: table
+  # Select whether hashes that are the last argument in a method call should be
+  # inspected? Valid values are:
+  #
+  # always_inspect - Inspect both implicit and explicit hashes.
+  #   Registers an offence for:
+  #     function(a: 1,
+  #       b: 2)
+  #   Registers an offence for:
+  #     function({a: 1,
+  #       b: 2})
+  # always_ignore - Ignore both implicit and explicit hashes.
+  #   Accepts:
+  #     function(a: 1,
+  #       b: 2)
+  #   Accepts:
+  #     function({a: 1,
+  #       b: 2})
+  # ignore_implicit - Ignore only implicit hashes.
+  #   Accepts:
+  #     function(a: 1,
+  #       b: 2)
+  #   Registers an offence for:
+  #     function({a: 1,
+  #       b: 2})
+  # ignore_explicit - Ignore only explicit hashes.
+  #   Accepts:
+  #     function({a: 1,
+  #       b: 2})
+  #   Registers an offence for:
+  #     function(a: 1,
+  #       b: 2)
+  EnforcedLastArgumentHashStyle: always_inspect
+  SupportedLastArgumentHashStyles:
+    - always_inspect
+    - always_ignore
+    - ignore_implicit
+    - ignore_explicit
+
+# Disabled
+Style/NumericLiterals:
+  Description: >-
+                 Add underscores to large numeric literals to improve their
+                 readability.
+  Enabled: false
+  MinDigits: 5
+
+# Keep
+Style/RedundantReturn:
+  Description: "Don't use return where it's not required."
+  Enabled: true
+  # When true allows code like `return x, y`.
+  AllowMultipleReturnValues: false
+
+# Disabled
+Style/SingleLineBlockParams:
+  Description: 'Enforces the names of some block params.'
+  Enabled: false
+  Methods:
+    - reduce:
+        - a
+        - e
+    - inject:
+        - a
+        - e
+

.travis.yml

@@ -1,3 +1,3 @@
 language: ruby
 rvm:
-  - 2.2.0
+  - 2.3.6

Gemfile

@@ -3,8 +3,6 @@ source 'https://rubygems.org'
 # Specify your gem's dependencies in fluent-mixin-ec2meta-placeholders.gemspec
 gemspec
 
-gem 'ec2_meta', git: 'https://github.com/leonis/ec2_meta.git'
-
 group :development, :test do
   gem 'pry-byebug'
   gem 'gem-release'