Make code compatible with Ruby 2.7

Not including specs etc.

CHANGELOG.md

@@ -4,6 +4,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.1.1/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Fixed
+
+- Fixed YARD example rendering issues in `InvalidKeyFormatError#initialize`, `InvalidKeyLengthError#initialize`,
+`InvalidKeyTypeError#initialize`, `Event#initialize`, `EncryptedDirectMessage#initialize` and `Filter#to_h`
+
 ## [0.5.0] 2023-11-20
 
 ### Added
@@ -82,6 +89,7 @@ principles of immutability and was a major source of internal complexity as I ne
 
 - Initial release
 
+[unreleased]: https://github.com/wilsonsilva/nostr/compare/v0.5.0...HEAD
 [0.5.0]: https://github.com/wilsonsilva/nostr/compare/v0.4.0...v0.5.0
 [0.4.0]: https://github.com/wilsonsilva/nostr/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/wilsonsilva/nostr/compare/v0.2.0...v0.3.0

lib/nostr/client.rb

@@ -81,7 +81,7 @@ module Nostr
     # @return [Subscription] The subscription object
     #
     def subscribe(subscription_id: SecureRandom.hex, filter: Filter.new)
-      subscriptions[subscription_id] = Subscription.new(id: subscription_id, filter:)
+      subscriptions[subscription_id] = Subscription.new(id: subscription_id, filter: filter)
       parent_to_child_channel.push([ClientMessageType::REQ, subscription_id, filter.to_h].to_json)
       subscriptions[subscription_id]
     end

lib/nostr/errors/invalid_key_format_error.rb

@@ -9,7 +9,7 @@ module Nostr
     # Initializes the error
     #
     # @example
-    #   InvalidKeyFormatError.new('private'')
+    #   InvalidKeyFormatError.new('private')
     #
     # @param [String] key_kind The kind of key that is invalid (public or private)
     #

lib/nostr/errors/invalid_key_length_error.rb

@@ -9,7 +9,7 @@ module Nostr
     # Initializes the error
     #
     # @example
-    #   InvalidKeyLengthError.new('private'')
+    #   InvalidKeyLengthError.new('private')
     #
     # @param [String] key_kind The kind of key that is invalid (public or private)
     #

lib/nostr/errors/invalid_key_type_error.rb

@@ -9,10 +9,12 @@ module Nostr
     # Initializes the error
     #
     # @example
-    #   InvalidKeyTypeError.new('private'')
+    #   InvalidKeyTypeError.new('private')
     #
     # @param [String] key_kind The kind of key that is invalid (public or private)
     #
-    def initialize(key_kind) = super("Invalid #{key_kind} key type")
+    def initialize(key_kind)
+      super("Invalid #{key_kind} key type")
+    end
   end
 end

lib/nostr/event.rb

@@ -149,7 +149,9 @@ module Nostr
     #
     # @return [Array<String>] The event's updated list of tags
     #
-    def add_event_reference(event_id) = tags.push(['e', event_id])
+    def add_event_reference(event_id)
+      tags.push(['e', event_id])
+    end
 
     # Adds a reference to a pubkey as a 'p' tag
     #
@@ -163,7 +165,9 @@ module Nostr
     #
     # @return [Array<String>] The event's updated list of tags
     #
-    def add_pubkey_reference(pubkey) = tags.push(['p', pubkey.to_s])
+    def add_pubkey_reference(pubkey)
+      tags.push(['p', pubkey.to_s])
+    end
 
     # Signs an event with the user's private key
     #
@@ -212,13 +216,13 @@ module Nostr
     #
     def to_h
       {
-        id:,
-        pubkey:,
-        created_at:,
-        kind:,
-        tags:,
-        content:,
-        sig:
+        id: id,
+        pubkey: pubkey,
+        created_at: created_at,
+        kind: kind,
+        tags: tags,
+        content: content,
+        sig: sig
       }
     end
 

lib/nostr/event_kind.rb

@@ -21,6 +21,7 @@ module Nostr
     # The content is set to the URL (e.g., wss://somerelay.com) of a relay the event creator wants to
     # recommend to its followers.
     #
+    # @deprecated This event kind was removed in https://github.com/nostr-protocol/nips/pull/703/files#diff-39307f1617417657ee9874be314f13aabdc74401b124d0afe8217f2919c9c7d8L105
     # @return [Integer]
     #
     RECOMMEND_SERVER = 2

lib/nostr/filter.rb

@@ -133,26 +133,29 @@ module Nostr
     # @api public
     #
     # @example
-    #   filter.to_h # => {:ids=>["c24881c305c5cfb7c1168be7e9b0e150"],
-    #    :authors=>["000000001c5c45196786e79f83d21fe801549fdc98e2c26f96dcef068a5dbcd7"],
-    #    :kinds=>[0, 1, 2],
-    #    :"#e"=>["7bdb422f254194ae4bb86d354c0bd5a888fce233ffc77dceb3e844ceec1fcfb2"],
-    #    :"#p"=>["000000001c5c45196786e79f83d21fe801549fdc98e2c26f96dcef068a5dbcd7"],
-    #    :since=>1230981305,
-    #    :until=>1292190341}
+    #   filter.to_h # =>
+    #   {
+    #      ids: ['c24881c305c5cfb7c1168be7e9b0e150'],
+    #      authors: ['000000001c5c45196786e79f83d21fe801549fdc98e2c26f96dcef068a5dbcd7'],
+    #      kinds: [0, 1, 2],
+    #      '#e': ['7bdb422f254194ae4bb86d354c0bd5a888fce233ffc77dceb3e844ceec1fcfb2'],
+    #      '#p': ['000000001c5c45196786e79f83d21fe801549fdc98e2c26f96dcef068a5dbcd7'],
+    #      since: 1230981305,
+    #      until: 1292190341
+    #   }
     #
     # @return [Hash] The filter as a hash.
     #
     def to_h
       {
-        ids:,
-        authors:,
-        kinds:,
+        ids: ids,
+        authors: authors,
+        kinds: kinds,
         '#e': e,
         '#p': p,
-        since:,
+        since: since,
         until: self.until,
-        limit:
+        limit: limit
       }.compact
     end
 

lib/nostr/key.rb

@@ -79,7 +79,9 @@ module Nostr
     #
     # @return [String] The bech32 string representation of the key
     #
-    def to_bech32 = Bech32.encode(hrp: self.class.hrp, data: self)
+    def to_bech32
+      Bech32.encode(hrp: self.class.hrp, data: self)
+    end
 
     protected
 

lib/nostr/keygen.rb

@@ -33,7 +33,7 @@ module Nostr
       private_key = generate_private_key
       public_key  = extract_public_key(private_key)
 
-      KeyPair.new(private_key:, public_key:)
+      KeyPair.new(private_key: private_key, public_key: public_key)
     end
 
     # Generates a private key
@@ -89,7 +89,7 @@ module Nostr
     def get_key_pair_from_private_key(private_key)
       validate_private_key(private_key)
       public_key = extract_public_key(private_key)
-      KeyPair.new(private_key:, public_key:)
+      KeyPair.new(private_key: private_key, public_key: public_key)
     end
 
     private

lib/nostr/user.rb

@@ -62,10 +62,10 @@ module Nostr
     )
       event = Event.new(
         pubkey: keypair.public_key,
-        kind:,
-        content:,
-        created_at:,
-        tags:
+        kind: kind,
+        content: content,
+        created_at: created_at,
+        tags: tags
       )
       event.sign(keypair.private_key)
     end

nostr.gemspec

@@ -12,7 +12,7 @@ Gem::Specification.new do |spec|
   spec.description = 'Client and relay implementation of the Nostr protocol.'
   spec.homepage = 'https://nostr-ruby.com/'
   spec.license = 'MIT'
-  spec.required_ruby_version = '>= 3.2.0'
+  spec.required_ruby_version = '>= 2.7.2'
   spec.metadata['rubygems_mfa_required'] = 'true'
 
   spec.metadata['homepage_uri'] = spec.homepage