Initial commit

.devcontainer/devcontainer.json

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+{
+  "name": "GitHub Actions (TypeScript)",
+  "image": "mcr.microsoft.com/devcontainers/typescript-node:20",
+  "postCreateCommand": "npm install",
+  "customizations": {
+    "codespaces": {
+      "openFiles": ["README.md"]
+    },
+    "vscode": {
+      "extensions": [
+        "bierner.markdown-preview-github-styles",
+        "davidanson.vscode-markdownlint",
+        "dbaeumer.vscode-eslint",
+        "esbenp.prettier-vscode",
+        "github.copilot",
+        "github.copilot-chat",
+        "github.vscode-github-actions",
+        "github.vscode-pull-request-github",
+        "me-dutour-mathieu.vscode-github-actions",
+        "redhat.vscode-yaml",
+        "rvest.vs-code-prettier-eslint",
+        "yzhang.markdown-all-in-one"
+      ],
+      "settings": {
+        "editor.defaultFormatter": "esbenp.prettier-vscode",
+        "editor.tabSize": 2,
+        "editor.formatOnSave": true,
+        "markdown.extension.list.indentationSize": "adaptive",
+        "markdown.extension.italic.indicator": "_",
+        "markdown.extension.orderedList.marker": "one"
+      }
+    }
+  },
+  "remoteEnv": {
+    "GITHUB_TOKEN": "${localEnv:GITHUB_TOKEN}"
+  },
+  "features": {
+    "ghcr.io/devcontainers/features/github-cli:1": {},
+    "ghcr.io/devcontainers-contrib/features/prettier:1": {}
+  }
+}

.env.example

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+# Do not commit your actual .env file to Git! This may contain secrets or other
+# private information.
+
+# Enable/disable step debug logging (default: `false`). For local debugging, it
+# may be useful to set it to `true`.
+ACTIONS_STEP_DEBUG=true
+
+# GitHub Actions inputs should follow `INPUT_<name>` format (case-sensitive).
+# Hyphens should not be converted to underscores!
+INPUT_MILLISECONDS=2400
+
+# GitHub Actions default environment variables. These are set for every run of a
+# workflow and can be used in your actions. Setting the value here will override
+# any value set by the local-action tool.
+# https://docs.github.com/en/actions/learn-github-actions/variables#default-environment-variables
+
+# CI="true"
+# GITHUB_ACTION=""
+# GITHUB_ACTION_PATH=""
+# GITHUB_ACTION_REPOSITORY=""
+# GITHUB_ACTIONS=""
+# GITHUB_ACTOR=""
+# GITHUB_ACTOR_ID=""
+# GITHUB_API_URL=""
+# GITHUB_BASE_REF=""
+# GITHUB_ENV=""
+# GITHUB_EVENT_NAME=""
+# GITHUB_EVENT_PATH=""
+# GITHUB_GRAPHQL_URL=""
+# GITHUB_HEAD_REF=""
+# GITHUB_JOB=""
+# GITHUB_OUTPUT=""
+# GITHUB_PATH=""
+# GITHUB_REF=""
+# GITHUB_REF_NAME=""
+# GITHUB_REF_PROTECTED=""
+# GITHUB_REF_TYPE=""
+# GITHUB_REPOSITORY=""
+# GITHUB_REPOSITORY_ID=""
+# GITHUB_REPOSITORY_OWNER=""
+# GITHUB_REPOSITORY_OWNER_ID=""
+# GITHUB_RETENTION_DAYS=""
+# GITHUB_RUN_ATTEMPT=""
+# GITHUB_RUN_ID=""
+# GITHUB_RUN_NUMBER=""
+# GITHUB_SERVER_URL=""
+# GITHUB_SHA=""
+# GITHUB_STEP_SUMMARY=""
+# GITHUB_TRIGGERING_ACTOR=""
+# GITHUB_WORKFLOW=""
+# GITHUB_WORKFLOW_REF=""
+# GITHUB_WORKFLOW_SHA=""
+# GITHUB_WORKSPACE=""
+# RUNNER_ARCH=""
+# RUNNER_DEBUG=""
+# RUNNER_NAME=""
+# RUNNER_OS=""
+# RUNNER_TEMP=""
+# RUNNER_TOOL_CACHE=""

.eslintignore

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+lib/
+dist/
+node_modules/
+coverage/

.gitattributes

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+* text=auto eol=lf
+
+dist/** -diff linguist-generated=true

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly
+    groups:
+      actions-minor:
+        update-types:
+          - minor
+          - patch
+
+  - package-ecosystem: npm
+    directory: /
+    schedule:
+      interval: weekly
+    groups:
+      npm-development:
+        dependency-type: development
+        update-types:
+          - minor
+          - patch
+      npm-production:
+        dependency-type: production
+        update-types:
+          - patch

.github/linters/.eslintrc.yml

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+env:
+  node: true
+  es6: true
+  jest: true
+
+globals:
+  Atomics: readonly
+  SharedArrayBuffer: readonly
+
+ignorePatterns:
+  - '!.*'
+  - '**/node_modules/.*'
+  - '**/dist/.*'
+  - '**/coverage/.*'
+  - '*.json'
+
+parser: '@typescript-eslint/parser'
+
+parserOptions:
+  ecmaVersion: 2023
+  sourceType: module
+  project:
+    - './.github/linters/tsconfig.json'
+    - './tsconfig.json'
+
+plugins:
+  - jest
+  - '@typescript-eslint'
+
+extends:
+  - eslint:recommended
+  - plugin:@typescript-eslint/recommended-type-checked
+  - plugin:jest/recommended
+
+rules:
+  {
+    'camelcase': 'off',
+    'eslint-comments/no-use': 'off',
+    'eslint-comments/no-unused-disable': 'off',
+    'i18n-text/no-en': 'off',
+    'import/no-namespace': 'off',
+    'no-console': 'off',
+    'semi': 'off',
+    '@typescript-eslint/array-type': 'error',
+    '@typescript-eslint/consistent-type-assertions': 'error',
+    '@typescript-eslint/explicit-member-accessibility':
+      ['error', { 'accessibility': 'no-public' }],
+    '@typescript-eslint/explicit-function-return-type':
+      ['error', { 'allowExpressions': true }],
+    '@typescript-eslint/no-empty-interface': 'error',
+    '@typescript-eslint/no-extraneous-class': 'error',
+    '@typescript-eslint/no-inferrable-types': 'error',
+    '@typescript-eslint/no-non-null-assertion': 'warn',
+    '@typescript-eslint/no-unnecessary-qualifier': 'error',
+    '@typescript-eslint/no-useless-constructor': 'error',
+    '@typescript-eslint/no-var-requires': 'error',
+    '@typescript-eslint/prefer-for-of': 'warn',
+    '@typescript-eslint/prefer-function-type': 'warn',
+    '@typescript-eslint/prefer-includes': 'error',
+    '@typescript-eslint/prefer-string-starts-ends-with': 'error',
+    '@typescript-eslint/promise-function-async': 'error',
+    '@typescript-eslint/require-array-sort-compare': 'error',
+    '@typescript-eslint/space-before-function-paren': 'off'
+  }

.github/linters/.markdown-lint.yml

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+# Unordered list style
+MD004:
+  style: dash
+
+# Ordered list item prefix
+MD029:
+  style: one
+
+# Spaces after list markers
+MD030:
+  ul_single: 1
+  ol_single: 1
+  ul_multi: 1
+  ol_multi: 1
+
+# Code block style
+MD046:
+  style: fenced

.github/linters/.yaml-lint.yml

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+rules:
+  document-end: disable
+  document-start:
+    level: warning
+    present: false
+  line-length:
+    level: warning
+    max: 80
+    allow-non-breakable-words: true
+    allow-non-breakable-inline-mappings: true

.github/linters/tsconfig.json

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+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "noEmit": true
+  },
+  "include": ["../../__tests__/**/*", "../../src/**/*"],
+  "exclude": ["../../dist", "../../node_modules", "../../coverage", "*.json"]
+}

.github/workflows/check-dist.yml

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+# In TypeScript actions, `dist/` is a special directory. When you reference
+# an action with the `uses:` property, `dist/index.js` is the code that will be
+# run. For this project, the `dist/index.js` file is transpiled from other
+# source files. This workflow ensures the `dist/` directory contains the
+# expected transpiled code.
+#
+# If this workflow is run from a feature branch, it will act as an additional CI
+# check and fail if the checked-in `dist/` directory does not match what is
+# expected from the build.
+name: Check Transpiled JavaScript
+
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  check-dist:
+    name: Check dist/
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        id: checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        id: setup-node
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: .node-version
+          cache: npm
+
+      - name: Install Dependencies
+        id: install
+        run: npm ci
+
+      - name: Build dist/ Directory
+        id: build
+        run: npm run bundle
+
+      # This will fail the workflow if the `dist/` directory is different than
+      # expected.
+      - name: Compare Directories
+        id: diff
+        run: |
+          if [ ! -d dist/ ]; then
+            echo "Expected dist/ directory does not exist.  See status below:"
+            ls -la ./
+            exit 1
+          fi
+          if [ "$(git diff --ignore-space-at-eol --text dist/ | wc -l)" -gt "0" ]; then
+            echo "Detected uncommitted changes after build. See status below:"
+            git diff --ignore-space-at-eol --text dist/
+            exit 1
+          fi
+
+      # If `dist/` was different than expected, upload the expected version as a
+      # workflow artifact.
+      - if: ${{ failure() && steps.diff.outcome == 'failure' }}
+        name: Upload Artifact
+        id: upload
+        uses: actions/upload-artifact@v4
+        with:
+          name: dist
+          path: dist/

.github/workflows/ci.yml

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+name: Continuous Integration
+
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  test-typescript:
+    name: TypeScript Tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        id: checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        id: setup-node
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: .node-version
+          cache: npm
+
+      - name: Install Dependencies
+        id: npm-ci
+        run: npm ci
+
+      - name: Check Format
+        id: npm-format-check
+        run: npm run format:check
+
+      - name: Lint
+        id: npm-lint
+        run: npm run lint
+
+      - name: Test
+        id: npm-ci-test
+        run: npm run ci-test
+
+  test-action:
+    name: GitHub Actions Test
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        id: checkout
+        uses: actions/checkout@v4
+
+      - name: Test Local Action
+        id: test-action
+        uses: ./
+        with:
+          milliseconds: 2000
+
+      - name: Print Output
+        id: output
+        run: echo "${{ steps.test-action.outputs.time }}"