[PATCH 1/8] conf.py: add linkcheck builder exclusions

The linkcheck builder can be used to scout for broken links. By looking at
the output of:

  grep -E -r --no-filename -o 'href="http.://[^/"]+' | sort | uniq -c | sort -nr

from the HTML output directory, exclude links that are too frequent.
Also remove docs.yoctoproject.org links are those should already be
validated when building the documentation.

Signed-off-by: Antonin Godard <[email protected]>
---
 documentation/conf.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/documentation/conf.py b/documentation/conf.py
index 7b201ebd6..aff01c1ed 100644
--- a/documentation/conf.py
+++ b/documentation/conf.py
@@ -143,6 +143,19 @@ suppress_warnings = ['epub.unknown_project_files']
 # sphinx-copybutton configuration
 copybutton_prompt_text = "$ "
 
+# When using the linkcheck builder, ignore the following links which are too
+# present in the docs, and self-references to yocto-docs which are already
+# checked.
+linkcheck_ignore = [
+    r'https?://nvd\.nist\.gov.*',
+    r'https?://docs\.yoctoproject\.org.*',
+    r'https?://git\.yoctoproject\.org.*',
+    r'https?://git\.openembedded\.org.*',
+    r'https?://downloads\.yoctoproject\.org.*',
+    r'https?://mirrors\.kernel\.org.*',
+    r'https?://mirrors\.edge\.kernel\.org.*'
+]
+
 # -- Options for HTML output -------------------------------------------------
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for

-- 
2.54.0