Super linter (#317)

* Adding super-linter CI

* Adding comment to changelog

* Linting update to changelog

* Revert "Linting update to changelog"

This reverts commit b8bd474.

* Beginning to test CPP, Markdown and YAML linters

* Linting for consistency for markdown

* Complete rules for cpplint

* Remove ruby linting

* Fixing file name

* Explicitly state the config file

* Try json format for config file

* Clean up and testing a new path

* Needed linter rules root path with the new custom config

* Trying a different config option

* Cleaned up the file endings

* Removing a few linter changes.

* Removing more linting changes

Author: prestoncarman

Diff for: .github/workflows/linter.yaml

@@ -0,0 +1,34 @@
+---
+name: Lint Code Base
+
+on:
+  push:
+    branches-ignore: [master, main]
+    # Remove the line above to run when pushing to master
+  pull_request:
+    branches: [master, main]
+
+jobs:
+  build:
+    name: Lint Code Base
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v2
+        with:
+          # Full git history is needed to get a proper list of changed files within `super-linter`
+          fetch-depth: 0
+
+      - name: Lint Code Base
+        uses: github/super-linter/slim@v4
+        env:
+          VALIDATE_ALL_CODEBASE: true
+          FILTER_REGEX_EXCLUDE: ./cpp/arduino/avr/*
+          DEFAULT_BRANCH: master
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          VALIDATE_CPP: true
+          VALIDATE_MARKDOWN: true
+          VALIDATE_YAML: true
+          LINTER_RULES_PATH: /
+          MARKDOWN_CONFIG_FILE: /.markdown-lint.json

Diff for: .markdown-lint.json

@@ -0,0 +1,20 @@
+{
+  "blanks-around-fences": false,
+  "blanks-around-headings": false,
+  "blanks-around-lists": false,
+  "commands-show-output": false,
+  "first-line-h1": false,
+  "header-increment": false,
+  "line_length": {
+    "line_length": 600
+  },
+  "no-bare-urls": false,
+  "no-duplicate-heading": false,
+  "no-multiple-blanks": {
+    "maximum": 2
+  },
+  "single-h1": false,
+  "ul-indent": {
+    "indent": 4
+  }
+}

Diff for: CHANGELOG.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - `--min-free-space=N` command-line argument to fail if free space is below required value
 - Add `_BV()` macro.
 - Support for `dtostrf()`
+- Added a CI workflow to lint the code base
 - Added a CI workflow to check for spelling errors
 
 ### Changed
@@ -202,7 +203,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - `GodmodeState` now uses timestamped PinHistory for Analog and Digital
 
 ### Fixed
-* `ArduinoQueue` no longer leaks memory
+- `ArduinoQueue` no longer leaks memory
 
 
 ## [0.1.21] - 2019-02-07

Diff for: CONTRIBUTING.md

@@ -11,8 +11,8 @@ ArduinoCI uses a very standard GitHub workflow.
 
 Pull requests will trigger a Travis CI job.  The following two commands will be expected to pass (so you may want to run them locally before opening the pull request):
 
- * `bundle exec rubocop -D .` - code style tests
- * `bundle exec rspec` - functional tests
+* `bundle exec rubocop -D .` - code style tests
+* `bundle exec rspec` - functional tests
 
  If you do not already have a working ruby development environment set up, run the following commands:
 

Diff for: CPPLINT.cfg

@@ -0,0 +1,3 @@
+set noparent
+filter=-build/header_guard, -build/include, -build/include_order, -build/include_subdir, -build/include_what_you_use, -build/namespaces, -legal/copyright, -readability/alt_tokens, -readability/braces, -readability/casting, -readability/fn_size, -readability/inheritance, -readability/todo, -runtime/arrays, -runtime/explicit, -runtime/int, -runtime/printf, -runtime/references, -whitespace
+linelength=120

Diff for: README.md

@@ -120,15 +120,15 @@ gem 'arduino_ci', path: '/path/to/development/dir/for/arduino_ci'
 ### Installing the Dependencies
 
 Fulfilling the `arduino_ci` library dependency is as easy as running either of these two commands:
-```
+
+```console
 $ bundle install   # adds packages to global library (may require admin rights)
 $ bundle install --path vendor/bundle   # adds packages to local library
 ```
 
 This will create a `Gemfile.lock` in your project directory, which you may optionally check into source control.  A broader introduction to ruby dependencies is outside the scope of this document.
 
 
-
 ### Running `arduino_ci.rb` To Test Your Library
 
 With that installed, just the following shell command each time you want the tests to execute:

Diff for: REFERENCE.md

@@ -314,7 +314,6 @@ bundle exec arduino_ci.rb
 Note the use of subshell to execute `bundle exec arduino_library_location.rb`.  This command simply returns the directory in which Arduino Libraries are (or should be) installed.
 
 
-
 # Mocks of Arduino Hardware Functions
 
 Unless your library peforms something general (e.g. a mathematical or string function, a data structure like Queue, etc), you may need to ensure that your code interacts properly with the Arduino hardware.  There are a series of mocks to assist in this.

Diff for: SampleProjects/DoSomething/test/README.md

@@ -4,6 +4,6 @@ These files are designed to test the testing framework (the Ruby gem) itself, li
 
 ## Naming convention
 
-Files in this directory are given names that either contains "bad" (if it is expected to fail) or "good" (if it is expected to pass).  This provides a signal to `rspec` for how the code is expected to perform (see `spec/cpp_library_spec.rb`). 
+Files in this directory are given names that either contains "bad" (if it is expected to fail) or "good" (if it is expected to pass).  This provides a signal to `rspec` for how the code is expected to perform (see `spec/cpp_library_spec.rb`).
 
 When writing your own tests you should not follow this ("bad" and "good") naming convention. You should write all your tests expecting them to pass (relying on this `DoSomething` test to ensure that failures are actually noticed!).

Diff for: cpp/arduino/avr/CPPLINT.cfg

@@ -0,0 +1,3 @@
+# The files in this directory have been copied from Arduino.
+# This file configures cpplint to ignore all files in this directory.
+exclude_files=.*