tox: Keeping going with docs

1. Sphinx 1.8 introduced [1] the '--keep-going' argument which, as its name
suggests, keeps the build running when it encounters non-fatal errors.
This is exceptionally useful in avoiding a continuous edit-build loop
when undertaking large doc reworks where multiple errors may be
introduced.

2. Add whitelist_externals to fix the warning

[1] https://github.com/sphinx-doc/sphinx/commit/e3483e9b045

Change-Id: I47683ab1313981a8202afe6b3fe1779d40340452

1 files changed, 9 insertions, 3 deletions

diff --git a/tox.ini b/tox.ini
index 596d9f30b..17bf4c83f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -66,10 +66,12 @@ commands =
 
 [testenv:docs]
 basepython = python3
+whitelist_externals =
+  rm
 deps = -r{toxinidir}/doc/requirements.txt
 commands =
   rm -rf doc/build
-  sphinx-build -W -b html doc/source doc/build/html
+  sphinx-build -W --keep-going -b html doc/source doc/build/html
 
 [testenv:api-ref]
 basepython = python3
@@ -80,7 +82,7 @@ whitelist_externals = bash
                       rm
 commands =
   rm -rf api-ref/build
-  sphinx-build -W -b html -d api-ref/build/doctrees api-ref/source api-ref/build/html
+  sphinx-build -W --keep-going -b html -d api-ref/build/doctrees api-ref/source api-ref/build/html
 
 [testenv:genconfig]
 basepython = python3
@@ -130,8 +132,12 @@ commands = oslo_debug_helper {posargs}
 
 [testenv:releasenotes]
 basepython = python3
+whitelist_externals =
+  rm
 deps = -r{toxinidir}/doc/requirements.txt
-commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
+commands =
+  rm -rf releasenotes/build
+  sphinx-build -a -E -W -d releasenotes/build/doctrees --keep-going -b html releasenotes/source releasenotes/build/html
 
 [testenv:bindep]
 basepython = python3