tools: pin the version of breathe that works with Python2

Signed-off-by: Alfredo Deza <adeza@redhat.com>
(cherry picked from commit 7ab6a390053d7034b8dcf5a3d94c23a83d29f8ab)

diff --git a/admin/doc-requirements.txt b/admin/doc-requirements.txt
index 9c16068fc0e89b43543db76c5a483d9356cb48a2..0939b68133435eb2a9ac60c12d3f48a441a32398 100644 (file)
--- a/admin/doc-requirements.txt
+++ b/admin/doc-requirements.txt
@@ -1,6 +1,7 @@
 Sphinx == 1.8.3
 git+https://github.com/ceph/sphinx-ditaa.git@py3#egg=sphinx-ditaa
-git+https://github.com/michaeljones/breathe#egg=breathe
+# newer versions of breathe will require Sphinx >= 2.0.0 and are Python3 only
+breathe==4.12.0
 # 4.2 is not yet release at the time of writing, to address CVE-2017-18342,
 # we have to use its beta release.
 pyyaml>=4.2b1