Update docs and pep8 tox environments

Make the docs tox environment use doc/requirements.

For pep8, just install the linters and skip installing the package.
Doing this but leaving in the constraints file keeps us in line with
upper-constraints on linters but lets our pep8 envs be tiny.

Finally, remove the doc8 line-length setting. It's not a big enough
difference to warrant changing it.

Change-Id: I3df81474fb52e2587d22c7789b6b553139eb37f2

doc/source/user/config/configuration.rst

@@ -11,8 +11,8 @@ Environment Variables
 provide backwards compatibility to service-specific variables such as
 `NOVA_USERNAME`.
 
-If you have OpenStack environment variables set, `os-client-config` will produce
-a cloud config object named `envvars` containing your values from the
+If you have OpenStack environment variables set, `os-client-config` will
+produce a cloud config object named `envvars` containing your values from the
 environment. If you don't like the name `envvars`, that's ok, you can override
 it by setting `OS_CLOUD_NAME`.
 
@@ -119,11 +119,11 @@ location rules previously mentioned for the config files.
 `regions` can be a list of regions. When you call `get_all_clouds`,
 you'll get a cloud config object for each cloud/region combo.
 
-As seen with `dns_service_type`, any setting that makes sense to be per-service,
-like `service_type` or `endpoint` or `api_version` can be set by prefixing
-the setting with the default service type. That might strike you funny when
-setting `service_type` and it does me too - but that's just the world we live
-in.
+As seen with `dns_service_type`, any setting that makes sense to be
+per-service, like `service_type` or `endpoint` or `api_version` can be set
+by prefixing the setting with the default service type. That might strike you
+funny when setting `service_type` and it does me too - but that's just the
+world we live in.
 
 Auth Settings
 -------------

doc/source/user/guides/network.rst

@@ -56,8 +56,8 @@ List Security Groups
 --------------------
 
 A **security group** acts as a virtual firewall for servers. It is a container
-for security group rules which specify the type of network traffic and direction
-that is allowed to pass through a port.
+for security group rules which specify the type of network traffic and
+direction that is allowed to pass through a port.
 
 .. literalinclude:: ../examples/network/list.py
    :pyobject: list_security_groups

test-requirements.txt

@@ -1,10 +1,7 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
-
 coverage!=4.4,>=4.0 # Apache-2.0
-doc8>=0.6.0 # Apache-2.0
 extras>=1.0.0 # MIT
 fixtures>=3.0.0 # Apache-2.0/BSD
 jsonschema<3.0.0,>=2.6.0 # MIT

tox.ini

@@ -12,9 +12,9 @@ setenv =
     LANGUAGE=en_US:en
     LC_ALL=C
 deps =
-  -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
-  -r{toxinidir}/test-requirements.txt
-  -r{toxinidir}/requirements.txt
+    -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
+    -r{toxinidir}/test-requirements.txt
+    -r{toxinidir}/requirements.txt
 commands = stestr run {posargs}
            stestr slowest
 
@@ -30,14 +30,18 @@ commands = stestr --test-path ./openstack/tests/functional run --serial {posargs
            stestr slowest
 
 [testenv:pep8]
+usedevelop = False
+skip_install = True
 deps =
-  -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
-  -r{toxinidir}/requirements.txt
-  -r{toxinidir}/test-requirements.txt
-  -r{toxinidir}/doc/requirements.txt
+    -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
+    doc8
+    hacking
+    pygments
+    readme
 commands =
-  doc8 doc/source
-  flake8
+    doc8 doc/source
+    python setup.py check -r -s
+    flake8
 
 [testenv:venv]
 commands = {posargs}
@@ -65,14 +69,15 @@ passenv = HOME USER
 commands = {toxinidir}/extras/run-ansible-tests.sh -e {envdir} {posargs}
 
 [testenv:docs]
-basepython = python3
 deps =
-  -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
-  -r{toxinidir}/requirements.txt
-  -r{toxinidir}/doc/requirements.txt
+    -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
+    -r{toxinidir}/requirements.txt
+    -r{toxinidir}/doc/requirements.txt
 commands = sphinx-build -W -d doc/build/doctrees -b html doc/source/ doc/build/html
 
 [testenv:releasenotes]
+usedevelop = False
+skip_install = True
 commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
 [flake8]
@@ -91,5 +96,3 @@ exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build
 
 [doc8]
 extensions = .rst, .yaml
-# Maximal line length should be 80.
-max-line-length = 80