linux-kernel - [PATCH 4.9 022/116] docs: sphinx-extensions: make rstFlatTable work with docutils 0.13

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Date:   Fri,  6 Jan 2017 22:43:04 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dmitry Shachnev <mitya57@...ian.org>,
        Jonathan Corbet <corbet@....net>
Subject: [PATCH 4.9 022/116] docs: sphinx-extensions: make rstFlatTable work with docutils 0.13

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dmitry Shachnev <mitya57@...ian.org>

commit 217e2bfab22e740227df09f22165e834cddd8a3b upstream.

In docutils 0.13, the return type of get_column_widths method of the
Table directive has changed [1], which breaks our flat-table directive
and leads to a TypeError when trying to build the docs [2].

This patch adds support for the new return type, while keeping support
for older docutils versions too.

[1] https://sourceforge.net/p/docutils/patches/120/
[2] https://sourceforge.net/p/docutils/bugs/303/

Signed-off-by: Dmitry Shachnev <mitya57@...ian.org>
Signed-off-by: Jonathan Corbet <corbet@....net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 Documentation/sphinx/rstFlatTable.py |    5 +++++
 1 file changed, 5 insertions(+)

--- a/Documentation/sphinx/rstFlatTable.py
+++ b/Documentation/sphinx/rstFlatTable.py
@@ -157,6 +157,11 @@ class ListTableBuilder(object):
     def buildTableNode(self):
 
         colwidths    = self.directive.get_column_widths(self.max_cols)
+        if isinstance(colwidths, tuple):
+            # Since docutils 0.13, get_column_widths returns a (widths,
+            # colwidths) tuple, where widths is a string (i.e. 'auto').
+            # See https://sourceforge.net/p/docutils/patches/120/.
+            colwidths = colwidths[1]
         stub_columns = self.directive.options.get('stub-columns', 0)
         header_rows  = self.directive.options.get('header-rows', 0)