docs: automarkup.py: ignore exceptions when seeking for xrefs
When using the automarkup extension with:
make pdfdocs
without passing an specific book, the code will raise an exception:
File "/devel/v4l/docs/Documentation/sphinx/automarkup.py", line 86, in auto_markup
node.parent.replace(node, markup_funcs(name, app, node))
File "/devel/v4l/docs/Documentation/sphinx/automarkup.py", line 59, in markup_funcs
'function', target, pxref, lit_text)
File "/devel/v4l/docs/sphinx_2.0/lib/python3.7/site-packages/sphinx/domains/c.py", line 308, in resolve_xref
contnode, target)
File "/devel/v4l/docs/sphinx_2.0/lib/python3.7/site-packages/sphinx/util/nodes.py", line 450, in make_refnode
'#' + targetid)
File "/devel/v4l/docs/sphinx_2.0/lib/python3.7/site-packages/sphinx/builders/latex/__init__.py", line 159, in get_relative_uri
return self.get_target_uri(to, typ)
File "/devel/v4l/docs/sphinx_2.0/lib/python3.7/site-packages/sphinx/builders/latex/__init__.py", line 152, in get_target_uri
raise NoUri
sphinx.environment.NoUri
This happens because not all references will belong to a single
PDF/LaTeX document.
Better to just ignore those than breaking Sphinx build.
Fixes: d74b0d31ddde ("Docs: An initial automarkup extension for sphinx")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
[jc: Narrowed the "except" and tweaked the comment]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/Documentation/sphinx/automarkup.py b/Documentation/sphinx/automarkup.py
index b300cf1..77e89c1 100644
--- a/Documentation/sphinx/automarkup.py
+++ b/Documentation/sphinx/automarkup.py
@@ -6,6 +6,7 @@
#
from docutils import nodes
from sphinx import addnodes
+from sphinx.environment import NoUri
import re
#
@@ -55,8 +56,15 @@
reftype = 'function',
reftarget = target, modname = None,
classname = None)
- xref = cdom.resolve_xref(app.env, docname, app.builder,
- 'function', target, pxref, lit_text)
+ #
+ # XXX The Latex builder will throw NoUri exceptions here,
+ # work around that by ignoring them.
+ #
+ try:
+ xref = cdom.resolve_xref(app.env, docname, app.builder,
+ 'function', target, pxref, lit_text)
+ except NoUri:
+ xref = None
#
# Toss the xref into the list if we got it; otherwise just put
# the function text.
