ignore links for ipynb files (#39)

* ignore links for ipynb files

* update test workflow macos version

* update ipynb test case

* update example file for test case

* fix other test cases

.github/workflows/tests.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        PLATFORM: ['ubuntu-latest', 'macos-latest',  'windows-latest']
+        PLATFORM: ['ubuntu-latest', 'macos-10.15',  'windows-latest']
         PYTHON_VERSION: ['3.6', '3.9']
     steps:
       - name: Checkout

examples/linkcheck.ipynb

@@ -46,8 +46,15 @@
     "\n",
     "[markdown local bad](doesntexist.html)\n",
     "\n",
-    "[markdown absolute](/tmp)"
+    "[markdown absolute](/tmp)\n",
+    "\n",
+    "[markdown link to ignore](http://example.com/404)"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": []
   }
  ],
  "metadata": {

pytest_check_links/plugin.py

@@ -136,7 +136,12 @@ def _items_from_notebook(self):
             html = MarkdownWithMath(renderer=renderer).render(cell.source)
             basename = 'Cell %i' % cell_num
             for item in links_in_html(basename, self, html):
-                yield item
+                ignore = False
+                for pattern in self.ignore_links:
+                    if re.match(pattern, item.target):
+                        ignore = True
+                if not ignore:
+                    yield item
 
     def collect(self):
         path = self.fspath

test/test_cache.py

@@ -31,7 +31,7 @@ def test_cache_expiry(testdir, base_args, cache_name, tmpdir):
     args = base_args + ["--check-links-cache-expire-after", "2"]
     if cache_name:
         args += ["--check-links-cache-name", os.path.join(str(tmpdir), cache_name)]
-    expected = dict(passed=3, failed=3)
+    expected = dict(passed=3, failed=4)
     t0 = time.time()
     result = testdir.runpytest(*args)
     t1 = time.time()

test/test_check_links.py

@@ -6,6 +6,8 @@
 def test_ipynb(testdir):
     testdir.copy_example('linkcheck.ipynb')
     result = testdir.runpytest("-v", "--check-links")
+    result.assert_outcomes(passed=3, failed=4)
+    result = testdir.runpytest("-v", "--check-links", "--check-links-ignore", "http.*example.com/.*")
     result.assert_outcomes(passed=3, failed=3)
 
 def test_markdown(testdir):
@@ -47,4 +49,4 @@ def test_link_ext(testdir):
     testdir.copy_example('rst.rst')
     testdir.copy_example('markdown.md')
     result = testdir.runpytest("-v", "--check-links", "--links-ext=md,ipynb")
-    result.assert_outcomes(passed=11, failed=7)
+    result.assert_outcomes(passed=11, failed=8)