feat: initial commit

.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/ruby
+{
+	"name": "Ruby",
+
+	"image": "mcr.microsoft.com/devcontainers/ruby:0-3.2",
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "bundle && bundle exec overcommit --install",
+
+	// Configure tool-specific properties.
+	// "customizations": {},
+
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	"remoteUser": "root",
+
+    "customizations": {
+		"vscode": {
+			"settings": {
+				// Basic formatting settings.
+				"files.trimTrailingWhitespace": true,
+				"files.insertFinalNewline": true,
+
+				// Colorize and highlight bracket pairs.
+				"editor.guides.bracketPairs": true,
+				"editor.bracketPairColorization.enabled": true,
+
+				// Require to confirm exit when the terminal is active (helps a lot when accidentally Cmd-Q pressed).
+				"terminal.integrated.confirmOnExit": "hasChildProcesses",
+
+				// Controls the maximum amount of lines the terminal keeps in its buffer.
+				// Increase to 50000. Default 1000 is too low.
+				"terminal.integrated.scrollback": 50000,
+
+				// Ruby LSP settings
+				"rubyLsp.formatter": "rubocop",
+				"rubyLsp.enableExperimentalFeatures": true,
+
+				// Ruby LSP advanced semantic highlighting.
+				"workbench.colorTheme": "Spinel",
+
+				// Ruby settings.
+				"[ruby]": {
+					"editor.formatOnSave": true,
+					"editor.formatOnType": true,
+					"editor.defaultFormatter": "Shopify.ruby-lsp",
+					"editor.rulers": [
+						120
+					],
+					"editor.tabSize": 2,
+					"editor.insertSpaces": true,
+					"editor.semanticHighlighting.enabled": true
+				},
+			},
+
+			// Add the IDs of extensions you want installed when the container is created in the array below.
+			"extensions": [
+				"shopify.ruby-extensions-pack",
+				"eamodio.gitlens",
+				"ms-azuretools.vscode-docker",
+				"davidanson.vscode-markdownlint",
+				"bierner.markdown-preview-github-styles",
+        		"github.vscode-github-actions"
+			]
+		}
+	}
+}

.dockerignore

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+.bundle/*
+.idea*
+log/*
+tmp/*
+.ruby-lsp/*

.editorconfig

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+# Defines the coding style for different editors and IDEs.
+# http://editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true

.github/CODEOWNERS

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+# https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners
+
+* @oleksii-leonov

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: bundler
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/main.yml

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+name: Test Suite
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  overcommit:
+    runs-on: ubuntu-latest
+    name: Overcommit checks
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.2
+          bundler-cache: true
+      - name: Overcommit checks
+        # NOTE: Set to make Overcommit's AuthorName and AuthorEmail checks happy.
+        env:
+          GIT_AUTHOR_NAME: example
+          GIT_AUTHOR_EMAIL: example@example.com
+        run: |
+          bundle exec overcommit --sign --force
+          SKIP=ForbiddenBranches bundle exec overcommit --run
+  specs:
+    needs: [overcommit]
+    runs-on: ${{ matrix.os }}
+    name: Ruby ${{ matrix.ruby }} on ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: ["ubuntu-22.04", "macos-12", "windows-2022"]
+        ruby: ["2.6", "2.7", "3.0", "3.1", "3.2"]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - name: Run the default task
+        env:
+          # NOTE: Using fixed console table width.
+          # TTY width in GitHub actions could be as small as "1" for Windows machines.
+          TTY_TABLE_WIDTH: fixed
+        run: bundle exec rake
+  build_and_test_docker_image:
+    needs: [overcommit]
+    runs-on: ubuntu-latest
+    name: Build and test docker image
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Build docker image
+        uses: docker/build-push-action@v4
+        with:
+          load: true
+          tags: test
+      - name: Run image
+        run: |
+          mkdir -p /tmp/sample_data
+          cp spec/sample_data/system/input.csv /tmp/sample_data/input.csv
+          docker run -t --rm \
+            -v /tmp/sample_data:/tmp/sample_data \
+            test \
+            --input /tmp/sample_data/input.csv \
+            --output /tmp/sample_data/output.csv
+      - name: Check results
+        run: diff /tmp/sample_data/output.csv spec/sample_data/system/output.csv

.gitignore

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+*.gem
+*.rbc
+/.config
+/coverage/
+/spec/reports/
+/spec/examples.txt
+/tmp/
+
+## Documentation cache and generated files:
+/.yardoc/
+/_yardoc/
+/doc/
+/rdoc/
+
+## Environment normalization:
+/.bundle/
+/vendor/bundle
+/lib/bundler/man/
+
+# for a library or gem, you might want to ignore these files since the code is
+# intended to run in multiple environments; otherwise, check them in:
+Gemfile.lock
+.ruby-version
+.ruby-gemset
+
+# unless supporting rvm < 1.11.0 or doing something fancy, ignore this:
+.rvmrc
+
+# RSpec
+/.rspec_status
+
+# Checksums folder
+/checksums
+
+# MacOS files
+.DS_Store
+.AppleDouble
+.LSOverride
+._*
+.Spotlight-V100
+.Trashes
+
+# Ruby-LSP VSCode extension
+/.ruby-lsp
+
+# VSCode workspace settings
+/.vscode

.overcommit.yml

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+PreCommit:
+  ALL:
+    on_warn: fail
+  BundleCheck:
+    enabled: true
+  FileSize:
+    enabled: true
+    size_limit_bytes: 1_000_000
+  ForbiddenBranches:
+    enabled: true
+  LineEndings:
+    enabled: true
+  RuboCop:
+    enabled: true
+  TrailingWhitespace:
+    enabled: true
+  YamlSyntax:
+    enabled: true
+
+CommitMsg:
+  ALL:
+    on_warn: fail
+  # Disable some default Overcommit checks to avoid collisions with commitlint.
+  TextWidth:
+    enabled: false
+  CapitalizedSubject:
+    enabled: false
+  SingleLineSubject:
+    enabled: false

.rspec

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+--format documentation
+--color
+--require spec_helper

.rubocop.yml

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+require:
+  - rubocop-rspec
+
+AllCops:
+  NewCops: enable
+  TargetRubyVersion: 2.6
+
+Style/StringLiterals:
+  Enabled: true
+  EnforcedStyle: double_quotes
+
+Style/StringLiteralsInInterpolation:
+  Enabled: true
+  EnforcedStyle: double_quotes
+
+Layout/LineLength:
+  Max: 120
+
+# Relax RSpec metrics
+RSpec/ExampleLength:
+  Max: 20 # Defaut is 5
+
+RSpec/MultipleExpectations:
+  Max: 3 # Defaut is 1
+
+RSpec/MultipleMemoizedHelpers:
+  Max: 10 # Defaut is 5

CHANGELOG.md

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+## [Unreleased]
+
+## [0.1.0] - 2023-05-02
+
+- Initial release