Link Checker test enhancement (#1352)

Check link in current branch if "main" link fails.

.github/workflows/link_checker.yml

@@ -2,9 +2,14 @@ name: Check Markdown and doc links
 
 on:
   workflow_dispatch: # Allow manual triggers
+  schedule:
+    - cron: 0 0 * * *
   pull_request:
     branches:
       - main
+  push:
+    branches:
+      - main
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}

tests/doc_tests/test_docs_links.py

@@ -15,7 +15,7 @@
 import unittest
 import subprocess
 from shutil import rmtree
-from os import walk, getcwd
+from os import walk, getcwd, getenv
 from os.path import join, isdir, isfile
 import requests
 import re
@@ -28,18 +28,29 @@ class TestDocsLinks(unittest.TestCase):
     """
 
     @staticmethod
-    def check_link(_url):
+    def check_link(_url, branch_name):
         try:
             response = requests.get(_url)
             if response.status_code == 200:
                 return True
         except Exception as e:
             print(f"Error checking link '{_url}': {e}")
-            return False
+
+        try:
+            _url = _url.replace('/main/', f'/{branch_name}/')
+            response = requests.get(_url)
+            if response.status_code == 200:
+                return True
+        except Exception as e:
+            print(f"Error checking link '{_url}': {e}")
+
+        return False
 
     def test_readme_and_rst_files(self):
         mct_folder = getcwd()
         print("MCT folder:", mct_folder)
+        branch_name = getenv("GITHUB_HEAD_REF")
+        print("Branch name:", branch_name)
         are_links_ok = True
         for filepath, _, filenames in walk(mct_folder):
             for filename in filenames:
@@ -61,9 +72,9 @@ def test_readme_and_rst_files(self):
                                     pass
                                 elif _link.startswith('data:image/'):
                                     # A link starting with 'data:image/' is a base64-encoded image --> ignore
-                                    print("Inline image, skipping:", _link)
+                                    print("Inline image, skipping.")
                                 elif 'http://' in _link or 'https://' in _link:
-                                    if self.check_link(_link):
+                                    if self.check_link(_link, branch_name):
                                         print("Link ok:", _link)
                                     else:
                                         are_links_ok = False
@@ -90,7 +101,7 @@ def test_readme_and_rst_files(self):
                                     # This link is checked when generating the docs
                                     pass
                                 elif 'http://' in _link or 'https://' in _link:
-                                    if self.check_link(_link):
+                                    if self.check_link(_link, branch_name):
                                         print("Link ok:", _link)
                                     else:
                                         are_links_ok = False