chore: add automated testing for links on markdown documentation (#2537)

Author: yfodil

.github/workflows/docs.yml

@@ -14,3 +14,14 @@ jobs:
           SHELL: /bin/bash
       - name: Exit 1 if not empty
         run: git diff --exit-code
+  markdown-link-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: gaurav-nelson/[email protected]
+        with:
+          use-quiet-mode: 'yes'
+          use-verbose-mode: 'yes'
+          config-file: '.markdownlinkcheck.json'
+          folder-path: 'docs'
+          file-extension: '.md'

.markdownlinkcheck.json

@@ -0,0 +1,18 @@
+{
+  "ignorePatterns": [
+    {
+      "pattern": "^https://github.com/[^/]+/[^/]+/(issues|labels|pull)"
+    },
+    {
+      "pattern": "^http://169.254.42.42/[^/])"
+    },
+    {
+      "pattern": "^https://api.scaleway.com/account/v1"
+    }
+  ],
+  "timeout": "20s",
+  "retryOn429": true,
+  "retryCount": 5,
+  "fallbackRetryDelay": "30s",
+  "aliveStatusCodes": [200, 206]
+}

docs/developer.md

@@ -31,14 +31,14 @@ Be sure to check out the resource you create in each test and remember to delete
 When running a test, you might need information such as ID that you cannot know in advance (such as ID of resources).
 The `core.Test` uses different helpers to pass useful information around.
 
-One of them is the [`core.testMetadata`](https://github.com/scaleway/scaleway-cli/blob/v2/internal/core/testing.go#L80).
+One of them is the [`core.testMetadata`](https://github.com/scaleway/scaleway-cli/blob/master/internal/core/testing.go#L80).
 It is designed to store information such as ID or object describing a resource during a test.
 This metadata can use the `render` method to provide helpful golang templating features to have commands arguments computed dynamically.
 
 #### BeforeFunc and AfterFunc
 
 Usually, you might need to set up and teardown resources when you are running a test for testing a specific command.
-For that you can use [`BeforeFunc`](https://github.com/scaleway/scaleway-cli/blob/v2/internal/core/testing.go#L84) and [`AfterFunc`](https://github.com/scaleway/scaleway-cli/blob/v2/internal/core/testing.go#L86).
+For that you can use [`BeforeFunc`](https://github.com/scaleway/scaleway-cli/blob/master/internal/core/testing.go#L100) and [`AfterFunc`](https://github.com/scaleway/scaleway-cli/blob/master/internal/core/testing.go#L102).
 Those types allow you to execute code before (`BeforeFunc`) or after (`AfterFunc`) the main command you want to test.
 Those functions can access the metadata to change dynamically their behavior.
 
@@ -75,4 +75,4 @@ If you want to contribute new tests you should have the following:
     - Install go for your platform
     - Install your credentials, preferably in a configuration file (run `scw init`)
         - Keep in mind that if you record interaction, the resource you will instantiate will be delivered and billed.
-        - Clean up the resource you don't use once the recording is over.
+        - Clean up the resource you don't use once the recording is over.