[v2] doc: make sphinx errors more visible

Message ID 20201016123906.3027007-1-thomas@monjalon.net (mailing list archive)
State Accepted, archived
Delegated to: Thomas Monjalon
Headers
Series [v2] doc: make sphinx errors more visible |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Thomas Monjalon Oct. 16, 2020, 12:39 p.m. UTC
  When running Sphinx through ninja, the wrapper configured in meson
redirects stdout to a log file.
It makes more important to print issues on stderr.

Some warnings generated by the conf.py were hidden because
printed on stdout. The first improvement is to print them on stderr.

The second measure is to stop processing if meson was configured
with --werror.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
v2: check -W option directly from Sphinx argv
---
 doc/guides/conf.py | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)
  

Comments

Bruce Richardson Oct. 16, 2020, 12:43 p.m. UTC | #1
On Fri, Oct 16, 2020 at 02:39:06PM +0200, Thomas Monjalon wrote:
> When running Sphinx through ninja, the wrapper configured in meson
> redirects stdout to a log file.
> It makes more important to print issues on stderr.
> 
> Some warnings generated by the conf.py were hidden because
> printed on stdout. The first improvement is to print them on stderr.
> 
> The second measure is to stop processing if meson was configured
> with --werror.
> 
> Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
> ---

LGTM anyway

Acked-by: Bruce Richardson <bruce.richardson@intel.com>
  
Thomas Monjalon Oct. 16, 2020, 3:57 p.m. UTC | #2
16/10/2020 14:43, Bruce Richardson:
> On Fri, Oct 16, 2020 at 02:39:06PM +0200, Thomas Monjalon wrote:
> > When running Sphinx through ninja, the wrapper configured in meson
> > redirects stdout to a log file.
> > It makes more important to print issues on stderr.
> > 
> > Some warnings generated by the conf.py were hidden because
> > printed on stdout. The first improvement is to print them on stderr.
> > 
> > The second measure is to stop processing if meson was configured
> > with --werror.
> > 
> > Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
> > ---
> 
> LGTM anyway
> 
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>

Applied
  

Patch

diff --git a/doc/guides/conf.py b/doc/guides/conf.py
index 2ffe5a5969..9de490e1c4 100644
--- a/doc/guides/conf.py
+++ b/doc/guides/conf.py
@@ -12,6 +12,7 @@ 
 from os.path import basename
 from os.path import dirname
 from os.path import join as path_join
+from sys import argv, stderr
 
 import configparser
 
@@ -22,9 +23,12 @@ 
     html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
 except:
     print('Install the sphinx ReadTheDocs theme for improved html documentation '
-          'layout: https://sphinx-rtd-theme.readthedocs.io/')
+          'layout: https://sphinx-rtd-theme.readthedocs.io/',
+          file=stderr)
     pass
 
+stop_on_error = ('-W' in argv)
+
 project = 'Data Plane Development Kit'
 html_logo = '../logo/DPDK_logo_vertical_rev_small.png'
 latex_logo = '../logo/DPDK_logo_horizontal_tag.png'
@@ -217,7 +221,10 @@  def generate_overview_table(output_filename, table_id, section, table_name, titl
         if not config.has_section(section):
             print("{}: File '{}' has no [{}] secton".format(warning,
                                                             ini_filename,
-                                                            section))
+                                                            section),
+                                                            file=stderr)
+            if stop_on_error:
+                raise Exception('Warning is treated as a failure')
             continue
 
         # Check for valid features names.
@@ -225,7 +232,10 @@  def generate_overview_table(output_filename, table_id, section, table_name, titl
             if name not in valid_features:
                 print("{}: Unknown feature '{}' in '{}'".format(warning,
                                                                 name,
-                                                                ini_filename))
+                                                                ini_filename),
+                                                                file=stderr)
+                if stop_on_error:
+                    raise Exception('Warning is treated as a failure')
                 continue
 
             if value:
@@ -418,7 +428,8 @@  def setup(app):
 
     if LooseVersion(sphinx_version) < LooseVersion('1.3.1'):
         print('Upgrade sphinx to version >= 1.3.1 for '
-              'improved Figure/Table number handling.')
+              'improved Figure/Table number handling.',
+              file=stderr)
         # Add a role to handle :numref: references.
         app.add_role('numref', numref_role)
         # Process the numref references once the doctree has been created.