🖊 Lint markdown

.github/ISSUE_TEMPLATE/bug_report.md

@@ -26,8 +26,6 @@ assignees: ''
 
 > A clear and concise description of what the bug is.
 
-
-
 ## To Reproduce
 
 Steps to reproduce the behavior:
@@ -41,29 +39,20 @@ Steps to reproduce the behavior:
 
 > A clear and concise description of what you expected to happen.
 
-
-
 ## Actual Behavior
 
 > A clear and concise description of what actually happened.
 
-
-
 ## Screenshots, Terminal Output
 
 > If applicable, add screenshots to help explain your problem.
 
-
-
-```
+```bash
 $ mas command
 ...
 ```
 
-
 ## Additional Context
 
 > Add any other context about the problem here.
 > Did it work in a previous version?
-
-

.markdownlint.json

@@ -0,0 +1,4 @@
+{
+  "MD013": { "line_length": 120 },
+  "MD033": { "allowed_elements": ["h1", "img"] }
+}

Brewfile

@@ -1,3 +1,4 @@
+brew "markdownlint-cli"
 brew "shfmt"
 brew "swift-format"
 brew "swiftformat"

CODE_OF_CONDUCT.md

@@ -68,9 +68,9 @@ members of the project's leadership.
 ## Attribution
 
 This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
-available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+available at <https://www.contributor-covenant.org/version/1/4/code-of-conduct.html>
 
 [homepage]: https://www.contributor-covenant.org
 
 For answers to common questions about this code of conduct, see
-https://www.contributor-covenant.org/faq
+<https://www.contributor-covenant.org/faq>

CONTRIBUTING.md

@@ -6,7 +6,9 @@ We love pull requests from everyone. By participating in this project, you agree
 
 - Make sure you have a [GitHub account](https://github.com/join).
 - [Open an issue](https://github.com/mas-cli/mas/issues/new) to simply ask a question or request a new feature.
-- Search for similar issues with the [ERROR MESSAGE](https://github.com/mas-cli/mas/issues?utf8=%E2%9C%93&q=is%3Aopen+ERROR+MESSAGE) you are exeriencing.
+- Search for similar issues with the
+[ERROR MESSAGE](https://github.com/mas-cli/mas/issues?utf8=%E2%9C%93&q=is%3Aopen+ERROR+MESSAGE)
+you are exeriencing.
 - If one doesn't exist, [open a new issue](https://github.com/mas-cli/mas/issues/new)
   - Clearly describe the issue including steps to reproduce when it is a bug.
   - Include the earliest version of `mas` that you know has the issue.
@@ -50,7 +52,8 @@ to this project, but must remain an owner. By becoming a contributor, you agree
 
 - This project follows [trunk-based development](https://trunkbaseddevelopment.com/), where `master` is our trunk.
 - Release commits will be tagged in the format: `v1.2.3`.
-- Once releases are tagged, high-level release notes are published on the [releases](https://github.com/mas-cli/mas/releases) page.
+- Once releases are tagged, high-level release notes are published on the
+[releases](https://github.com/mas-cli/mas/releases) page.
 
 See GitHub's post on creating [Contributing Guidelines](https://github.com/blog/1184-contributing-guidelines)
 if you would like to set up something like this for your projects.

README.md

@@ -1,4 +1,4 @@
-[<p align="center"><img src="mas-cli.png" alt="mas-cli" width="450" height="auto"></p>][mas-cli]
+<h1 align="center"><img src="mas-cli.png" alt="mas-cli" width="450" height="auto"></h1>
 
 # mas-cli
 
@@ -109,7 +109,8 @@ $ mas purchase 768053424
 ```
 
 > Please note that you may have to re-authenticate yourself in the App Store to complete the purchase.
-This is the case if the application is not free or if you configured your account not to remember the credentials for free purchases.
+This is the case if the application is not free or if you configured your account not to remember the
+credentials for free purchases.
 
 Use `mas outdated` to list all applications with pending updates.
 
@@ -183,9 +184,14 @@ docs for more details.
 
 ## 💥 When something doesn't work
 
-If you see the error "This redownload is not available for this Apple ID either because it was bought by a different user of the item was refunded or cancelled.", it's probably because you haven't installed the app through the App Store yet. See [#46](https://github.com/mas-cli/mas/issues/46#issuecomment-248581233).
+If you see this error, it's probably because you haven't installed the app through the App Store yet.
+See [#46](https://github.com/mas-cli/mas/issues/46#issuecomment-248581233).
+> This redownload is not available for this Apple ID either because it was bought by a different user of the
+> item was refunded or cancelled.
 
-If `mas` doesn't work for you as expected (e.g. you can't update/download apps), run `mas reset` and try again. If the issue persists, please [file a bug](https://github.com/mas-cli/mas/issues/new)! All your feedback is much appreciated ✨
+If `mas` doesn't work for you as expected (e.g. you can't update/download apps), run `mas reset` and try again.
+If the issue persists, please [file a bug](https://github.com/mas-cli/mas/issues/new).
+All your feedback is much appreciated! ✨
 
 ## 📺 Using `tmux`
 

docs/style.md

@@ -7,13 +7,16 @@
      is intentional in markdown documents to create a line break like `<br>`, so these should _not_ be removed.
 - End each file with a [newline character](https://unix.stackexchange.com/questions/18743/whats-the-point-in-adding-a-new-line-to-the-end-of-a-file#18789).
 
-# Swift
+## Swift
 
 [Sample](sample.swift)
 
-- Avoid [force unwrapping optionals](https://blog.timac.org/2017/0628-swift-banning-force-unwrapping-optionals/) with `!` in production code
-   - Production code is what gets shipped with the app. Basically, everything under the [`mas-cli/`](https://github.com/mas-cli/mas/tree/master/mas-cli) folder.
-   - However, force unwrapping is **encouraged** in tests for less code and tests _should_ break when any expected conditions aren't met.
+- Avoid [force unwrapping optionals](https://blog.timac.org/2017/0628-swift-banning-force-unwrapping-optionals/)
+with `!` in production code
+  - Production code is what gets shipped with the app. Basically, everything under the
+  [`mas-cli/`](https://github.com/mas-cli/mas/tree/master/mas-cli) folder.
+  - However, force unwrapping is **encouraged** in tests for less code and tests
+  _should_ break when any expected conditions aren't met.
 - Prefer `struct`s over `class`es wherever possible
 - Default to marking classes as `final`
 - Prefer protocol conformance to class inheritance

script/format

@@ -13,13 +13,17 @@
 
 echo "==> 🚨 Formatting mas"
 
-for LINTER in shfmt swift-format swiftformat swiftlint; do
+for LINTER in markdownlint shfmt swift-format swiftformat swiftlint; do
   if [[ ! -x "$(command -v ${LINTER})" ]]; then
     echo "error: ${LINTER} is not installed. Run 'script/bootstrap' or 'brew install ${LINTER}'."
     exit 1
   fi
 done
 
+echo
+echo "--> 🖊 Markdown"
+markdownlint --config .markdownlint.json --fix .github .
+
 echo
 echo "--> 🕊️ Swift"
 for SOURCE in Package.swift Sources Tests; do

script/lint

@@ -12,7 +12,7 @@
 
 echo "==> 🚨 Linting mas"
 
-for LINTER in git swift-format swiftformat swiftlint; do
+for LINTER in git markdownlint shfmt swift-format swiftformat swiftlint; do
   if [[ ! -x "$(command -v ${LINTER})" ]]; then
     echo "error: ${LINTER} is not installed. Run 'script/bootstrap' or 'brew install ${LINTER}'."
     exit 1
@@ -22,6 +22,10 @@ done
 echo "--> 🌳 Git"
 git diff --check
 
+echo
+echo "--> 🖊 Markdown"
+markdownlint --config .markdownlint.json .github .
+
 echo
 echo "--> 🕊️ Swift"
 for SOURCE in Package.swift Sources Tests; do