Add CI for checking markdown format. (#325)

Signed-off-by: ChenYing Kuo <evshary@gmail.com>

.github/workflows/ci.yml

@@ -59,6 +59,15 @@ jobs:
       - name: Gradle Test
         run: gradle jvmTest --info
 
+  markdown_lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: DavidAnson/markdownlint-cli2-action@v18
+        with:
+          config: '.markdownlint.yaml'
+          globs: '**/README.md'
+
   # NOTE: In GitHub repository settings, the "Require status checks to pass
   # before merging" branch protection rule ensures that commits are only merged
   # from branches where specific status checks have passed. These checks are
@@ -67,7 +76,7 @@ jobs:
   ci:
     name: CI status checks
     runs-on: ubuntu-latest
-    needs: build
+    needs: [build, markdown_lint]
     if: always()
     steps:
       - name: Check whether all jobs pass

.markdownlint.yaml

@@ -0,0 +1,7 @@
+{
+  "MD013": false, # Line length limitation
+  "MD024": false, # Allow multiple headings with the same content
+  "MD033": false, # Enable Inline HTML
+  "MD041": false, # Allow first line heading
+  "MD045": false, # Allow Images have no alternate text
+}

README.md

@@ -7,7 +7,6 @@
 [![License](https://img.shields.io/badge/License-EPL%202.0-blue)](https://choosealicense.com/licenses/epl-2.0/)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
 
-
 # Eclipse Zenoh
 
 The Eclipse Zenoh: Zero Overhead Pub/sub, Store/Query and Compute.
@@ -16,36 +15,34 @@ Zenoh (pronounce _/zeno/_) unifies data in motion, data at rest and computations
 
 Check the website [zenoh.io](http://zenoh.io) and the [roadmap](https://github.com/eclipse-zenoh/roadmap) for more detailed information.
 
-
 ----
 
 # <img src="kotlin-logo.png" alt="Kotlin" height="50">  Kotlin API
 
-
 This repository provides a Kotlin binding based on the main [Zenoh implementation written in Rust](https://github.com/eclipse-zenoh/zenoh).
 
 The code relies on the Zenoh JNI native library, which written in Rust and communicates with the Kotlin layer via the Java Native Interface (JNI).
 
 ## Documentation
 
-The documentation of the API is published at https://eclipse-zenoh.github.io/zenoh-kotlin/index.html.
+The documentation of the API is published [here](https://eclipse-zenoh.github.io/zenoh-kotlin/index.html).
 
 Alternatively, you can build it locally as [explained below](#building-the-documentation).
 
 ----
+
 # How to import
 
 :warning: Note nº1: **About the released packages**
 
 The released packages can be found in the "packages" section of this repository, or in the links below:
-* [Android packages](https://github.com/eclipse-zenoh/zenoh-kotlin/packages/1968034/versions)
-* [JVM packages](https://github.com/eclipse-zenoh/zenoh-kotlin/packages/2016733/versions)
+
+- [Android packages](https://github.com/eclipse-zenoh/zenoh-kotlin/packages/1968034/versions)
+- [JVM packages](https://github.com/eclipse-zenoh/zenoh-kotlin/packages/2016733/versions)
 
 These are 'nightly' packages that need to be imported as explained in the following sections of this README.
 We plan to publish our packages into Maven central in the very short term.
 
-
-
 ## <img src="android-robot.png" alt="Android" height="50"> Android
 
 For this first version we have published a [Github package](https://github.com/eclipse-zenoh/zenoh-kotlin/packages/1968034) with the library which can be imported on your projects.
@@ -84,6 +81,7 @@ implementation("org.eclipse.zenoh:zenoh-kotlin-android:1.0.0")
 ### Platforms
 
 The library targets the following platforms:
+
 - x86
 - x86_64
 - arm
@@ -102,8 +100,9 @@ Zenoh is a communications protocol, therefore the permissions required are:
 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
 ```
 
----
-# <img src="jvm.png" alt="Java" height="50">  JVM
+----
+
+## <img src="jvm.png" alt="Java" height="50">  JVM
 
 Similar to Android, we have published a Github package to import on your projects.
 
@@ -140,26 +139,27 @@ implementation("io.zenoh:zenoh-kotlin-jvm:1.0.0")
 
 For the moment, the library targets the following platforms:
 
-    - x86_64-unknown-linux-gnu
-    - aarch64-unknown-linux-gnu
-    - x86_64-apple-darwin
-    - aarch64-apple-darwin
-    - x86_64-pc-windows-msvc
-
+- x86_64-unknown-linux-gnu
+- aarch64-unknown-linux-gnu
+- x86_64-apple-darwin
+- aarch64-apple-darwin
+- x86_64-pc-windows-msvc
 
----
+----
 
 # How to build it
 
 ## What you need
 
 Basically:
-* Rust ([Installation guide](https://doc.rust-lang.org/cargo/getting-started/installation.html))
-* Kotlin ([Installation guide](https://kotlinlang.org/docs/getting-started.html#backend))
-* Gradle ([Installation guide](https://gradle.org/install/))
+
+- Rust ([Installation guide](https://doc.rust-lang.org/cargo/getting-started/installation.html))
+- Kotlin ([Installation guide](https://kotlinlang.org/docs/getting-started.html#backend))
+- Gradle ([Installation guide](https://gradle.org/install/))
 
 and in case of targetting Android you'll also need:
-* Android SDK ([Installation guide](https://developer.android.com/about/versions/11/setup-sdk))
+
+- Android SDK ([Installation guide](https://developer.android.com/about/versions/11/setup-sdk))
 
 ## <img src="jvm.png" alt="JVM" height="50"> JVM
 
@@ -179,7 +179,7 @@ Once we have published the package, we should be able to find it under `~/.m2/re
 
 Finally, in the `build.gradle.kts` file of the project where you intend to use this library, add mavenLocal to the list of repositories and add zenoh-kotlin as a dependency:
 
-```
+```kotlin
 repositories {
     mavenCentral()
     mavenLocal()
@@ -202,14 +202,14 @@ It can be set up by using Android Studio (go to `Preferences > Languages & Frame
 or alternatively it can be found [here](https://developer.android.com/ndk/downloads).
 
 The native platforms we are going to target are the following ones:
-```
+
 - x86
 - x86_64
 - arm
 - arm64
-```
 
 Therefore, if they are not yet already added to the Rust toolchain, run:
+
 ```bash
 rustup target add armv7-linux-androideabi; \
 rustup target add i686-linux-android; \
@@ -219,8 +219,8 @@ rustup target add x86_64-linux-android
 
 to install them.
 
-
 So, in order to publish the library onto Maven Local, run:
+
 ```bash
 gradle -Pandroid=true publishAndroidReleasePublicationToMavenLocal
 ```
@@ -230,7 +230,8 @@ publish the library, containing the native binaries.
 
 You should now be able to see the package under `~/.m2/repository/io/zenoh/zenoh-kotlin-android/1.0.0`
 with the following files:
-```
+
+```raw
 zenoh-kotlin-android-1.0.0-sources.jar
 zenoh-kotlin-android-1.0.0.aar
 zenoh-kotlin-android-1.0.0.module
@@ -241,22 +242,24 @@ Now the library is published on maven local, let's now see how to import it into
 
 First, we need to indicate we want to look into mavenLocal for our library, so in your top level `build.gradle.kts` you need to specify
 the `mavenLocal` repository:
-```
+
+```kotlin
 repositories {
     mavenCentral()
     ...
     mavenLocal() // We add this line
 }
 ```
 
-Then in your app's `build.gradle.kts` filen add the dependency:
-```
+Then in your app's `build.gradle.kts` file add the dependency:
+
+```kotlin
 implementation("io.zenoh:zenoh-kotlin-android:1.0.0")
 ```
 
 And finally, do not forget to add the required internet permissions on your manifest!
 
-```
+```xml
 <uses-permission android:name="android.permission.INTERNET" />
 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 ```
@@ -268,6 +271,7 @@ And that was it! You can now import the code from the `io.zenoh` package and use
 Because it's a Kotlin project, we use [Dokka](https://kotlinlang.org/docs/dokka-introduction.html) to generate the documentation.
 
 In order to build it, run:
+
 ```bash
 gradle zenoh-kotlin:dokkaHtml
 ```
@@ -298,7 +302,7 @@ causes the logs to appear in standard output.
 
 The log levels are the ones from Rust: `trace`, `info`, `debug`, `error` and `warn`.
 
----
+----
 
 # Examples
 

examples/README.md

@@ -4,19 +4,18 @@
 
 ## Start instructions
 
-
-
 ```bash
-  gradle <example> --args="<arguments>"
+gradle <example> --args="<arguments>"
 ```
 
 for instance
 
 ```bash
-  gradle ZPub --args="-h"
+gradle ZPub --args="-h"
 ```
 
 will return
+
 ```bash
 > Task :examples:ZPub
 Usage: zpub [<options>]
@@ -44,20 +43,21 @@ The connect and listen parameters (that are common to all the examples) accept m
 For instance:
 
 ```bash
-  gradle ZPub --args="-l tcp/localhost:7447 -l tcp/localhost:7448 -l tcp/localhost:7449"
+gradle ZPub --args="-l tcp/localhost:7447 -l tcp/localhost:7448 -l tcp/localhost:7449"
 ```
 
 There is the possibility to provide a Zenoh config file as follows
+
 ```bash
-  gradle ZPub --args="-c path/to/config.json5"
+gradle ZPub --args="-c path/to/config.json5"
 ```
 
 In that case, any other provided configuration parameters through the command line interface will not be taken into consideration.
 
 One last comment regarding Zenoh logging for the examples, remember it can be enabled through the environment variable `RUST_LOG` as follows:
 
 ```bash
-  RUST_LOG=<level> gradle ZPub
+RUST_LOG=<level> gradle ZPub
 ```
 
 where `<level>` can be either `info`, `trace`, `debug`, `warn` or `error`.
@@ -76,12 +76,15 @@ Usage:
 ```bash
 gradle ZPub
 ```
+
 or
+
 ```bash
 gradle ZPub --args="-k demo/example/test -v 'hello world'"
 ```
 
 ### ZSub
+
 Creates a subscriber with a key expression.
 The subscriber will be notified of each put made on any key expression matching
 the subscriber's key expression, and will print this notification.
@@ -91,7 +94,9 @@ Usage:
 ```bash
 gradle ZSub
 ```
+
 or
+
 ```bash
 gradle ZSub --args="-k demo/example/test"
 ```
@@ -105,6 +110,7 @@ will receive this query and reply with paths/values that will be received by the
 ```bash
 gradle ZGet
 ```
+
 or
 
 ```bash
@@ -129,6 +135,7 @@ gradle ZPut --args="-k demo/example/put -v 'Put from Kotlin!'"
 ```
 
 ### ZDelete
+
 Performs a Delete operation into a path/value into Zenoh.
 
 Usage: