Rework into SQL::Builder with no external gem dependencies

Author: solnic

.github/ISSUE_TEMPLATE/bug-report.md

@@ -0,0 +1,26 @@
+---
+name: "\U0001F41B Bug report"
+about: See CONTRIBUTING.md for more information
+title: ''
+labels: bug, help wanted
+assignees: ''
+
+---
+
+## Describe the bug
+
+A clear and concise description of what the bug is.
+
+## To Reproduce
+
+Provide detailed steps to reproduce, **an executable script would be best**.
+
+## Expected behavior
+
+A clear and concise description of what you expected to happen.
+
+## My environment
+
+- Affects my production application: **YES/NO**
+- Ruby version: ...
+- OS: ...

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Community Support
+    url: https://discourse.dry-rb.org
+    about: Please ask and answer questions here.

.github/SUPPORT.md

@@ -0,0 +1,3 @@
+## Support
+
+If you need help with any of the dry-rb libraries, feel free to ask questions on our [discussion forum](https://discourse.dry-rb.org/). This is the best place to seek help. Make sure to search for a potential solution in past threads before posting your question. Thanks! :heart:

.github/workflows/ci.yml

@@ -0,0 +1,50 @@
+---
+name: ci
+on:
+  push:
+    paths:
+    - ".github/workflows/ci.yml"
+    - lib/**
+    - "*.gemspec"
+    - spec/**
+    - Rakefile
+    - Gemfile
+    - Gemfile.devtools
+    - ".rubocop.yml"
+    - project.yml
+  pull_request:
+    branches:
+    - master
+  create:
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby:
+        - head
+        - '2.7'
+        - '2.6'
+        - '2.5'
+        - jruby
+        include:
+        - ruby: '2.7'
+          coverage: 'true'
+    env:
+      COVERAGE: "${{matrix.coverage}}"
+      COVERAGE_TOKEN: "${{secrets.CODACY_PROJECT_TOKEN}}"
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: "${{matrix.ruby}}"
+    - name: Install latest bundler
+      run: |
+        gem install bundler --no-document
+        bundle config set without 'tools benchmarks docs'
+    - name: Bundle install
+      run: bundle install --jobs 4 --retry 3
+    - name: Run all tests
+      run: bundle exec rake

.rspec

@@ -1,2 +1,4 @@
---format documentation
 --color
+--require spec_helper
+--order random
+--warnings

.rubocop.yml

@@ -0,0 +1,109 @@
+# this file is managed by dry-rb/devtools project
+
+AllCops:
+  TargetRubyVersion: 2.7
+  NewCops: disable
+
+Style/StringLiterals:
+  Enabled: true
+  EnforcedStyle: double_quotes
+
+Style/AccessModifierDeclarations:
+  Enabled: false
+
+Style/BlockDelimiters:
+  Enabled: false
+
+Style/SymbolArray:
+  Exclude:
+    - "spec/**/*_spec.rb"
+
+Style/ConditionalAssignment:
+  Enabled: false
+
+Style/ClassAndModuleChildren:
+  Exclude:
+    - "spec/**/*_spec.rb"
+
+Style/ParallelAssignment:
+  Enabled: false
+
+Style/Alias:
+  Enabled: true
+  EnforcedStyle: prefer_alias_method
+
+Style/LambdaCall:
+  Enabled: false
+
+Style/StabbyLambdaParentheses:
+  Enabled: false
+
+Style/FormatString:
+  Enabled: false
+
+Style/Documentation:
+  Enabled: false
+
+Style/AsciiComments:
+  Enabled: false
+
+Style/DateTime:
+  Enabled: false
+
+Style/IfUnlessModifier:
+  Enabled: false
+
+Style/EachWithObject:
+  Enabled: false
+
+Lint/SuppressedException:
+  Exclude:
+    - "spec/spec_helper.rb"
+
+Lint/BooleanSymbol:
+  Enabled: false
+
+Layout/SpaceInLambdaLiteral:
+  Enabled: false
+
+Layout/MultilineMethodCallIndentation:
+  Enabled: true
+  EnforcedStyle: indented
+
+Layout/FirstArrayElementIndentation:
+  EnforcedStyle: consistent
+
+Naming/VariableNumber:
+  Enabled: false
+
+Naming/PredicateName:
+  Enabled: false
+
+Naming/FileName:
+  Exclude:
+    - "lib/dry-*.rb"
+
+Naming/MethodName:
+  Enabled: false
+
+Naming/MemoizedInstanceVariableName:
+  Enabled: false
+
+Layout/LineLength:
+  Max: 100
+
+Metrics/MethodLength:
+  Enabled: false
+
+Metrics/ClassLength:
+  Enabled: false
+
+Metrics/BlockLength:
+  Enabled: false
+
+Metrics/AbcSize:
+  Max: 25
+
+Metrics/CyclomaticComplexity:
+  Enabled: true
+  Max: 12

.travis.yml

@@ -1,8 +1,17 @@
-source 'https://rubygems.org'
+# frozen_string_literal: true
+
+source "https://rubygems.org"
 
 # Specify your gem's dependencies in sql.rb.gemspec
 gemspec
 
+gem "rake"
+
 group :tools do
-  gem 'byebug', platforms: :mri
+  gem "byebug", platforms: :mri
+  gem "rubocop", "~> 1.6"
+end
+
+group :test do
+  gem "rspec", "~> 3.10"
 end

Gemfile

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015 Piotr Solnica
+Copyright (c) 2020 Piotr Solnica
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

LICENSE.txt LICENSELICENSE.txt renamed to LICENSE

@@ -1,78 +1,3 @@
-# SQL.rb (WIP/PoC)
+# sql-builder
 
-A set of tools to generate SQL using AST transformations.
-
-The goal of this project is to provide a foundation for generating SQL that is
-reusable for other Ruby libraries that need to translate their SQL-representation
-into SQL strings.
-
-The idea is that SQL.rb ships with its own AST and a couple of tools to help
-working with this AST.
-
-In example ActiveRecord **could do this**:
-
-``` ruby
-ar_ast = User.select(:id, :name).where(name: 'Jane').to_ast
-# s(:select,
-#   s(:fields, :id, :name),
-#   s(:from, 'users'),
-#   s(:where,
-#     s(:name, s(:eq, 'Jane'))
-#   )
-# )
-
-sql_ast = ActiveRecord::SQL.call(User, ar_ast)
-# s(:select,
-#   s(:fields,
-#     s(:id, 'id'), s(:id, 'name')
-#   ),
-#   s(:id, 'users'),
-#   s(:where,
-#     s(:eq, s(:id, 'name'), s(:string, 'Jane'))
-#   )
-# )
-
-SQL[sql_ast]
-# => SELECT "id", "name" FROM "users" WHERE "name" = 'Jane'
-```
-
-This project is in a PoC state and is heavily based on the experience and actual
-code written initially for [ROM](https://github.com/rom-rb), specifically:
-
-* [dkubb/sql](https://github.com/dkubb/sql) - ast-based pure sql generator/parser
-* [solnic/axiom-sql-generator](https://github.com/solnic/axiom-sql-generator) - which was an attempt to translate axiom ast into sql ast
-* a ton of ast-processing-related work done by [mbj](https://github.com/mbj) for unparser and mutant gems
-
-## Installation
-
-Add this line to your application's Gemfile:
-
-```ruby
-gem 'sql.rb'
-```
-
-And then execute:
-
-    $ bundle
-
-Or install it yourself as:
-
-    $ gem install sql.rb
-
-## Usage
-
-TODO: Write usage instructions here
-
-## Development
-
-After checking out the repo, run `bin/setup` to install dependencies. Then, run `bin/console` for an interactive prompt that will allow you to experiment.
-
-To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release` to create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
-
-## Contributing
-
-1. Fork it ( https://github.com/solnic/sql.rb/fork )
-2. Create your feature branch (`git checkout -b my-new-feature`)
-3. Commit your changes (`git commit -am 'Add some feature'`)
-4. Push to the branch (`git push origin my-new-feature`)
-5. Create a new Pull Request
+TODO