API Generator and Removing support of Ruby 2

.github/workflows/compatibility.yml

@@ -19,7 +19,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        cluster-version: [ "1.0.0", "1.0.1", "1.1.0", "1.2.0", "1.2.1", "1.2.2", "1.2.3", "1.2.4", "1.3.0", "1.3.1", "2.0.0" ]
+        cluster-version: [ "1.3.3", "2.0.1", "2.18.0" ]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -52,7 +52,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        cluster-version: [ "1.0.0", "1.0.1", "1.1.0", "1.2.0", "1.2.1", "1.2.2", "1.2.3", "1.2.4", "1.3.0", "1.3.1", "1.3.2", "1.3.3", "2.0.0", "2.0.1" ]
+        cluster-version: [ "1.3.3", "2.0.1" ]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4

.github/workflows/generate_api.yml

@@ -0,0 +1,63 @@
+name: Generate API from Spec
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * 0" # Every Sunday at midnight GMT
+jobs:
+  generate-api:
+    if: ${{ github.repository == 'opensearch-project/opensearch-ruby' }}
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./api_generator
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          fetch-depth: 0
+
+      - name: Config git to rebase
+        run: git config --global pull.rebase true
+
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.1
+
+      - name: Update bundler
+        run: |
+          sudo apt-get update
+          bundle install
+
+      - name: Generate API
+        run: |-
+          bundle exec rake download_spec
+          bundle exec rake generate_api
+
+      - name: Get current date
+        id: date
+        run: echo "date=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
+
+      - name: GitHub App token
+        id: github_app_token
+        uses: tibdex/[email protected]
+        with:
+          app_id: ${{ secrets.APP_ID }}
+          private_key: ${{ secrets.APP_PRIVATE_KEY }}
+
+      - name: Create pull request
+        uses: peter-evans/create-pull-request@v7
+        with:
+          token: ${{ steps.github_app_token.outputs.token }}
+          commit-message: "Updated opensearch-ruby to reflect the latest OpenSearch API spec (${{ env.date }})"
+          title: "[AUTOCUT] Update opensearch-ruby to reflect the latest OpenSearch API spec (${{ env.date }})"
+          body: |
+            Update `opensearch-ruby` to reflect the latest [OpenSearch API spec](https://github.com/opensearch-project/opensearch-api-specification/releases/download/main-latest/opensearch-openapi.yaml).
+            Date: ${{ env.date }}
+          branch: update-api-from-spec-${{ env.date }}
+          base: main
+          signoff: true
+          labels: |
+            autocut

.github/workflows/lint.yml

@@ -10,7 +10,7 @@ jobs:
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.5
+          ruby-version: 3.0
       - run: |
           sudo apt-get update
           sudo apt-get install libcurl4-openssl-dev

.github/workflows/main.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ 2.5, 2.6, 2.7, '3.0', 3.1, 3.2, 3.3, jruby-9.3 ]
+        ruby: [ 3.0, 3.3, jruby-9.4 ]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -52,7 +52,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ 2.6, 2.7, '3.0', 3.1, 3.2, 3.3, jruby-9.3 ]
+        ruby: [ 3.0, 3.3, jruby-9.4 ]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -85,7 +85,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ 2.5, 2.6, 2.7, '3.0', 3.1, 3.2, 3.3, jruby-9.3 ]
+        ruby: [ 3.0, 3.3, jruby-9.4 ]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4

.github/workflows/test-unreleased.yml

@@ -14,6 +14,9 @@ on:
 
 jobs:
   test:
+    env:
+      TEST_OPENSEARCH_SERVER: http://localhost:9200
+      PORT: 9200
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
@@ -98,7 +101,7 @@ jobs:
           bundle install
         working-directory: ruby-client
 
-      - name: opensearch-ruby
+      - name: Perform Integration Tests
         working-directory: ruby-client
         run: rake test:integration
 

.gitignore

@@ -8,13 +8,13 @@ coverage
 docs/
 rdoc/
 tmp
-Gemfile.lock
+/Gemfile.lock
 .DS_Store
 *.log
 .idea/*
 profile/**/data/*.json
 .byebug_history
 dist/
 gem-private_key.pem
-.ruby-version
+/.ruby-version
 */.idea/**

.rubocop.yml

@@ -5,7 +5,7 @@ require:
   - rubocop-rspec
 
 AllCops:
-  TargetRubyVersion: 2.5
+  TargetRubyVersion: 3.0
   NewCops: enable
   Exclude:
     - 'api_generator/**/*'
@@ -36,3 +36,6 @@ Layout/FirstArgumentIndentation:
 
 Layout/FirstArrayElementIndentation:
   Enabled: false
+
+Layout/LineLength:
+  Enabled: false

CHANGELOG.md

@@ -9,6 +9,15 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ### Fixed
 ### Security
 
+## [4.0.0]
+### Added
+- Added an API Generator ([#233](https://github.com/opensearch-project/opensearch-ruby/issues/233))
+- Added a workflow to generate API methods from OpenSearch API Spec
+### Changed
+- Restructured the API methods and modules to be more efficient and intuitive
+### Deprecated
+- Removed support for Ruby 2.x
+
 ## [3.4.0]
 ### Added
 - Added `script_score` to Query DSL ([#254](https://github.com/opensearch-project/opensearch-ruby/pull/254))

UPGRADING.md

@@ -1,6 +1,10 @@
 # Upgrading
 Major versions of OpenSearch introduce breaking changes that require careful upgrades of the client. Check the [Compatibility](COMPATIBILITY.md) doc to see which version of the client should be used against your OpenSearch cluster.
 
+### Upgrade to OpenSearch Ruby 4
+OpenSearch Ruby 4 drops support for Ruby 2.x. If you are using Ruby 2.x, you should upgrade to Ruby 3.x before upgrading to OpenSearch Ruby 4.
+
+
 ### Upgrade to OpenSearch Ruby 3
 In Version 3 of the OpenSearch Ruby client, we have added the `api` and `transport` modules as the core components of the gem, instead of treating them as separate gems that are required by the `opensearch-ruby` gem. This removes the confusions around compatibility between the ruby client, its legacy dependencies, and the OpenSearch cluster.
 

api_generator/.gitignore

@@ -0,0 +1 @@
+opensearch-openapi.yaml

api_generator/.rubocop.yml

@@ -0,0 +1,19 @@
+require: rubocop-rake
+AllCops:
+  Include:
+    - 'lib/**/*.rb'
+    - 'Rakefile'
+  NewCops: enable
+
+Metrics/CyclomaticComplexity:
+  Enabled: false
+Metrics/MethodLength:
+  Enabled: false
+Metrics/AbcSize:
+  Enabled: false
+Metrics/PerceivedComplexity:
+  Enabled: false
+Layout/EmptyLineAfterGuardClause:
+  Enabled: false
+Style/MultilineBlockChain:
+  Enabled: false

api_generator/.ruby-version

@@ -0,0 +1 @@
+3.1.0

api_generator/Rakefile

@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: Apache-2.0
+#
+# The OpenSearch Contributors require contributions made to
+# this file be licensed under the Apache-2.0 license or a
+# compatible open source license.
+
+# frozen_string_literal: true
+
+require 'rake'
+require 'active_support/all'
+
+task :download_spec do
+  sh 'curl -L -X GET "https://github.com/opensearch-project/opensearch-api-specification/releases/download/main-latest/opensearch-openapi.yaml" -o opensearch-openapi.yaml'
+end
+
+
+task :generate_api do
+  require './lib/generator'
+  generator = Generator.new('./opensearch-openapi.yaml', '../')
+  generator.generate
+end

api_generator/gemfile

@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: Apache-2.0
+#
+# The OpenSearch Contributors require contributions made to
+# this file be licensed under the Apache-2.0 license or a
+# compatible open source license.
+
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
+
+gem 'rake'
+gem 'rubocop', '~> 1.44', require: false
+gem 'rubocop-rspec', require: false
+gem 'rubocop-rake', require: false
+gem 'mustache', '~> 1'
+gem 'activesupport', '~> 7'

api_generator/gemfile.lock

@@ -0,0 +1,71 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    activesupport (7.2.1)
+      base64
+      bigdecimal
+      concurrent-ruby (~> 1.0, >= 1.3.1)
+      connection_pool (>= 2.2.5)
+      drb
+      i18n (>= 1.6, < 2)
+      logger (>= 1.4.2)
+      minitest (>= 5.1)
+      securerandom (>= 0.3)
+      tzinfo (~> 2.0, >= 2.0.5)
+    ast (2.4.2)
+    base64 (0.2.0)
+    bigdecimal (3.1.8)
+    concurrent-ruby (1.3.4)
+    connection_pool (2.4.1)
+    drb (2.2.1)
+    i18n (1.14.6)
+      concurrent-ruby (~> 1.0)
+    json (2.7.2)
+    language_server-protocol (3.17.0.3)
+    logger (1.6.1)
+    minitest (5.25.1)
+    mustache (1.1.1)
+    parallel (1.26.3)
+    parser (3.3.5.0)
+      ast (~> 2.4.1)
+      racc
+    racc (1.8.1)
+    rainbow (3.1.1)
+    rake (13.2.1)
+    regexp_parser (2.9.2)
+    rubocop (1.66.1)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.4, < 3.0)
+      rubocop-ast (>= 1.32.2, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.32.3)
+      parser (>= 3.3.1.0)
+    rubocop-rake (0.6.0)
+      rubocop (~> 1.0)
+    rubocop-rspec (2.11.1)
+      rubocop (~> 1.19)
+    ruby-progressbar (1.13.0)
+    securerandom (0.3.1)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
+    unicode-display_width (2.6.0)
+
+PLATFORMS
+  ruby
+  x86_64-darwin-22
+
+DEPENDENCIES
+  activesupport (~> 7)
+  mustache (~> 1)
+  rake
+  rubocop (~> 1.44)
+  rubocop-rake
+  rubocop-rspec
+
+BUNDLED WITH
+   2.5.3

api_generator/lib/_generated_code_warning.txt

@@ -0,0 +1,2 @@
+# This file is generated from the OpenSearch REST API spec.
+# Do not modify it by hand. Instead, modify the generator or the spec.

api_generator/lib/_license_header.txt

@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: Apache-2.0
+#
+# The OpenSearch Contributors require contributions made to
+# this file be licensed under the Apache-2.0 license or a
+# compatible open source license.