Create GitHub Actions action to run Arduino Lint

.codespellrc

@@ -0,0 +1,6 @@
+[codespell]
+# In the event of a false positive, add the problematic word, in all lowercase, here:
+ignore-words-list = afterall
+check-filenames =
+check-hidden =
+skip = ./.git,./dist

.github/CONTRIBUTING.md

@@ -0,0 +1,31 @@
+## Development
+
+To work on the codebase you have to install all the dependencies:
+
+```sh
+# npm install
+```
+
+To run tests set the environment variable `GITHUB_TOKEN` with a valid Personal Access Token and then:
+
+```sh
+# npm run test
+```
+
+See the [official Github documentation][pat-docs] to learn more about Personal Access Tokens.
+
+## Release
+
+1. `npm install` to add all the dependencies, included development.
+1. `npm run build` to build the Action under the `./lib` folder.
+1. `npm run test` to see everything works as expected.
+1. `npm run pack` to package for distribution
+1. `git add src dist` to check in the code that matters.
+1. If the release will increment the major version, update the action refs in the examples in README.md
+   (e.g., `uses: arduino/arduino-lint-action@v1` -> `uses: arduino/arduino-lint-action@v2`).
+1. open a PR and request a review.
+1. After PR is merged, create a release, following the `vX.X.X` tag name convention.
+1. After the release, rebase the release branch for that major version (e.g., `v1` branch for the v1.x.x tags) on the
+   tag. If no branch exists for the release's major version, create one.
+
+[pat-docs]: https://docs.github.com/en/free-pro-team@latest/github/authenticating-to-github/creating-a-personal-access-token

.github/workflows/integration.yml

@@ -0,0 +1,92 @@
+name: Integration Tests
+
+on:
+  pull_request:
+  push:
+  schedule: # Scheduled trigger checks for breakage caused by changes to arduino-lint
+    # run every Tuesday at 3 AM UTC
+    - cron: "0 3 * * 2"
+  # workflow_dispatch event allows the workflow to be triggered manually
+  # See: https://docs.github.com/en/actions/reference/events-that-trigger-workflows#workflow_dispatch
+  workflow_dispatch:
+  # repository_dispatch event allows the workflow to be triggered via the GitHub API
+  # See: https://docs.github.com/en/actions/reference/events-that-trigger-workflows#repository_dispatch
+  repository_dispatch:
+
+jobs:
+  defaults:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout local repository
+        uses: actions/checkout@v2
+
+      - name: Build action
+        run: |
+          npm install
+          npm run build
+          npm run pack
+
+      # Run the action using default values as much as possible.
+      - name: Run action
+        uses: ./ # Use the action from the local path.
+        with:
+          path: .github/workflows/testdata/SpecificationSketch
+
+  expected-pass:
+    runs-on: ubuntu-latest
+
+    env:
+      REPORT_FILE_PATH: /tmp/report.json
+    steps:
+      - name: Checkout local repository
+        uses: actions/checkout@v2
+
+      - name: Build action
+        run: |
+          npm install
+          npm run build
+          npm run pack
+
+      # The contents of the test data path are structured so that the step will fail if arduino-lint is not run with the configuration according to these inputs.
+      - name: Run action
+        uses: ./
+        with:
+          path: .github/workflows/testdata/some-projects
+          compliance: permissive
+          library-manager: false
+          project-type: library
+          recursive: true
+          report-file: ${{ env.REPORT_FILE_PATH }}
+          official: true
+
+      - name: Verify report file exists
+        run: |
+          [ -e "${{ env.REPORT_FILE_PATH }}" ]
+
+  expected-fail:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout local repository
+        uses: actions/checkout@v2
+
+      - name: Build action
+        run: |
+          npm install
+          npm run build
+          npm run pack
+
+      # The contents of the test data path are structured so that the step will fail if arduino-lint is run with the default configuration.
+      - name: Run action
+        id: arduino-lint
+        continue-on-error: true
+        uses: ./
+        with:
+          path: .github/workflows/testdata/projects
+
+      - name: Fail the job if the action run succeeded
+        if: steps.arduino-lint.outcome == 'success'
+        run: |
+          echo "::error::The action run was expected to fail, but passed!"
+          exit 1

.github/workflows/spell-check.yml

@@ -0,0 +1,26 @@
+name: Spell Check
+
+on:
+  pull_request:
+  push:
+  schedule: # Schedule trigger for catching new misspelling detections resulting from dictionary updates.
+    # Run every Saturday at 3 AM UTC.
+    - cron: "0 3 * * 2"
+  # workflow_dispatch event allows the workflow to be triggered manually
+  # See: https://docs.github.com/en/actions/reference/events-that-trigger-workflows#workflow_dispatch
+  workflow_dispatch:
+  # repository_dispatch event allows the workflow to be triggered via the GitHub API
+  # See: https://docs.github.com/en/actions/reference/events-that-trigger-workflows#repository_dispatch
+  repository_dispatch:
+
+jobs:
+  spellcheck:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      # See: https://github.com/codespell-project/actions-codespell/blob/master/README.md
+      - name: Spell check
+        uses: codespell-project/actions-codespell@master

.github/workflows/test.yml

@@ -1,6 +1,8 @@
 name: Test Action
 
-on: [push, pull_request]
+on:
+  push:
+  pull_request:
 
 jobs:
   test:
@@ -11,14 +13,19 @@ jobs:
 
     strategy:
       matrix:
-        operating-system: [ubuntu-latest, windows-latest]
+        operating-system:
+          - ubuntu-latest
+          - windows-latest
 
     steps:
+      - name: Disable EOL conversions
+        run: git config --global core.autocrlf false
+
       - name: Checkout
-        uses: actions/checkout@master
+        uses: actions/checkout@v2
 
       - name: Set Node.js 10.x
-        uses: actions/setup-node@v1.4.4
+        uses: actions/setup-node@v1
         with:
           node-version: 10.x
 

.github/workflows/testdata/SpecificationSketch/SpecificationSketch.ino

@@ -0,0 +1,2 @@
+void setup() {}
+void loop() {}

.github/workflows/testdata/some-projects/InvalidSketch/Invalid Sketch.ino

@@ -0,0 +1,2 @@
+void setup() {}
+void loop() {}

.github/workflows/testdata/some-projects/PermissiveLibrary/library.properties

@@ -0,0 +1,11 @@
+name=ArduinoGraphics
+version=1.0.0
+author=Cristian Maglie <c.maglie@example.com>, Pippo Pluto <pippo@example.com>
+maintainer=Cristian Maglie <c.maglie@example.com>
+sentence=A library that requires the permissive compliance setting to pass the checks.
+paragraph=
+category=Other
+url=http://example.com/
+architectures=avr
+# Invalid permissive value only allowed in permissive compliance mode
+permissive=foo

README.md

@@ -1,66 +1,124 @@
-# setup-arduino-cli
+# `arduino/arduino-lint-action`
 
-[![Actions Status](https://github.com/arduino/setup-arduino-cli/workflows/Test%20Action/badge.svg)](https://github.com/arduino/setup-arduino-cli/actions)
+[![Tests Status](https://github.com/arduino/arduino-lint-action/workflows/Test%20Action/badge.svg)](https://github.com/arduino/arduino-lint-action/actions?workflow=Test+Action)
+[![Integration Tests Status](https://github.com/arduino/arduino-lint-action/workflows/Integration%20Tests/badge.svg)](https://github.com/arduino/arduino-lint-action/actions?workflow=Integration+Tests)
+[![Spellcheck Status](https://github.com/arduino/arduino-lint-action/workflows/Spell%20Check/badge.svg)](https://github.com/arduino/arduino-lint-action/actions?workflow=Spell+Check)
 
-This action makes the `arduino-cli` tool available to Workflows.
+[GitHub Actions](https://docs.github.com/en/free-pro-team@latest/actions) action that uses
+[Arduino Lint](https://github.com/arduino/arduino-lint) to check for problems with [Arduino](https://www.arduino.cc/)
+projects:
 
-## Usage
+- Libraries
+- Sketches
+- Boards platforms
 
-To get the latest stable version of `arduino-cli` just add this step:
+## Table of contents
 
-```yaml
-- name: Install Arduino CLI
-  uses: arduino/setup-arduino-cli@v1.1.1
-```
+<!-- toc -->
 
-If you want to pin a major or minor version you can use the `.x` wildcard:
+- [Inputs](#inputs)
+  - [`path`](#path)
+  - [`version`](#version)
+  - [`compliance`](#compliance)
+  - [`format`](#format)
+  - [`library-manager`](#library-manager)
+  - [`project-type`](#project-type)
+  - [`recursive`](#recursive)
+  - [`report-file`](#report-file)
+  - [`token`](#token)
+- [Usage](#usage)
 
-```yaml
-- name: Install Arduino CLI
-  uses: arduino/setup-arduino-cli@v1.1.1
-  with:
-    version: "0.x"
-```
+<!-- tocstop -->
 
-To pin the exact version:
+## Inputs
 
-```yaml
-- name: Install Arduino CLI
-  uses: arduino/setup-arduino-cli@v1.1.1
-  with:
-    version: "0.5.0"
-```
+### `path`
 
-## Examples
+Path containing Arduino project(s).
 
-[Here][example] there is a good example on how to use the action.
-See also the [Arduino on GitHub Actions blogpost][blogpost] to learn more.
+**Default**: `./`
 
-## Development
+### `version`
 
-To work on the codebase you have to install all the dependencies:
+The version of [Arduino Lint](https://github.com/arduino/arduino-lint) to use.
+Can be an exact version (e.g., `1.0.0`) or a version range (e.g., `1.x`).
 
-```sh
-# npm install
-```
+**Default**: `1.x`
 
-To run tests set the environment variable `GITHUB_TOKEN` with a valid Personal Access Token and then:
+### `compliance`
 
-```sh
-# npm run test
-```
+Configure how strict the tool is about which checks are considered errors vs warnings if they don't pass.
+
+#### Supported values
+
+- `strict` - enforces best practices, above and beyond the minimum requirements for specification compliance. Use this setting to ensure the best experience for the users of the project.
+- `specification` - enforces compliance with the official Arduino project specifications.
+- `permissive` - will cause the checks to fail only when severe problems are found. Although a project that passes at the permissive setting will work with the current Arduino development software versions, it may not be fully specification-compliant, risking incompatibility or a poor experience for the users.
+
+**Default**: `specification`
+
+### `library-manager`
+
+Configure the checks for libraries in the [Arduino Library Manager](https://github.com/arduino/Arduino/wiki/Library-Manager-FAQ) index.
+
+#### Supported values
+
+- `submit` - Also run additional checks required to pass before a library is accepted for inclusion in the index.
+- `update`- Also run additional checks required to pass before a library is accepted for inclusion in the index.
+- `false` - Don't run any Library Manager-specific checks.
+
+**Default**: `submit` for libraries, `false` for other project types
+
+### `project-type`
+
+Configures which types of projects to check, along with their subprojects.
 
-See the [official Github documentation][pat-docs] to know more about Personal Access Tokens.
+#### Supported values
+
+- `sketch`
+- `library`
+- `all` - Run checks on any type of project that is detected
+
+**Default**: `all`
+
+### `recursive`
+
+Set to `true` to search path recursively for Arduino projects to check.
+
+**Default**: `false`
+
+### `report-file`
+
+Save a JSON formatted report on the checks to this file.
+
+### `verbose`
+
+Set to `true` to show more information in the log about the checks being run.
+
+**Default**: `false`
+
+### `token`
+
+GitHub access token used to get information from the GitHub API.
+
+**Default**: [`GITHUB_TOKEN`](https://docs.github.com/en/free-pro-team@latest/actions/reference/authentication-in-a-workflow)
+
+## Usage
+
+The minimal workflow to run the default checks on the projects in the repository:
+
+```yaml
+on: [push, pull_request]
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: arduino/arduino-lint-action@v1
+```
 
-## Release
+## Contributing
 
-1. `npm install` to add all the dependencies, included development.
-2. `npm run build` to build the Action under the `./lib` folder.
-3. `npm run test` to see everything works as expected.
-4. `npm run pack` to package for distribution
-5. `git add src dist` to check in the code that matters.
-6. open a PR and request a review.
+To report bugs or make feature requests, please submit an issue: https://github.com/arduino/arduino-lint-action/issues
 
-[pat-docs]: https://docs.github.com/en/github/authenticating-to-github/creating-a-personal-access-token
-[example]: https://github.com/arduino/arduino-cli-example/blob/master/.github/workflows/test.yaml
-[blogpost]: https://blog.arduino.cc/2019/11/14/arduino-on-github-actions/
+Pull requests are welcome! Please see the [contribution guidelines](.github/CONTRIBUTING.md) for information.