[COMMON] Adds 2 upper-constraints files to pin all dependencies

It leverages the latest change from lfdocs-conf and the
upper-constraints.txt now centralized in ONAP docs.
In a long run, upperconstraints.os.txt should be removed once ONAP
is synced with OpenStack.

docs/requirements-docs.txt is renamed requirements.txt as it mixes
both docs and linter dependencies.

It removes tox and setuptools from requirements as nothing depends on them
(most requirements should be removed except lfdocsconf)

Issue-ID: DOC-765

Change-Id: Iae808297484f4798de82a43597ccad7905ff4c94
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
diff --git a/tox.ini b/tox.ini
index efe3b38..bbd00f8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,27 +12,35 @@
 ignore-path-errors=docs/helm-search.txt;D001
 
 [testenv:doc8]
-deps = -rdocs/requirements-docs.txt
-       doc8
+deps =
+    -r{toxinidir}/requirements.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.os.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.onap.txt
 commands =
  - doc8 docs/
 
 [testenv:docs]
-deps = -rdocs/requirements-docs.txt
+deps =
+    -r{toxinidir}/requirements.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.os.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.onap.txt
 commands =
  sphinx-build -q -W -b html -n -d {envtmpdir}/doctrees ./docs/ {toxinidir}/docs/_build/html
 
 [testenv:docs-linkcheck]
-deps = -rdocs/requirements-docs.txt
+deps =
+    -r{toxinidir}/requirements.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.os.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.onap.txt
 commands = sphinx-build -q -W -b linkcheck -d {envtmpdir}/doctrees ./docs/ {toxinidir}/docs/_build/linkcheck
 
 [testenv:spelling]
 #basepython = python3
 whitelist_externals = wget
 deps =
-    -rdocs/requirements-docs.txt
-    sphinxcontrib-spelling
-    PyEnchant
+    -r{toxinidir}/requirements.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.os.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.onap.txt
 changedir={toxinidir}/docs
 commands =
     wget -nv https://git.onap.org/doc/plain/docs/spelling_wordlist.txt -O spelling_wordlist.txt
@@ -41,8 +49,9 @@
 [testenv:gitlint]
 basepython = python3
 deps =
-  gitlint
-
+    -r{toxinidir}/requirements.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.os.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.onap.txt
 commands =
   gitlint
 
@@ -58,12 +67,18 @@
     find . -not -path '*/\.*' -name *.sh -exec checkbashisms \{\} +
 
 [testenv:autopep8]
-deps = autopep8
+deps =
+    -r{toxinidir}/requirements.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.os.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.onap.txt
 commands =
     autopep8 --max-line-length 120 --in-place --recursive kubernetes/ TOSCA/ docs/
 
 [testenv:pylint]
-deps = pylint
+deps =
+    -r{toxinidir}/requirements.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.os.txt
+    -chttps://git.onap.org/doc/plain/etc/upper-constraints.onap.txt
 whitelist_externals = find
 commands =
     find kubernetes/ TOSCA/ docs/ -name *.py -exec pylint --max-line-length=120 --disable=missing-docstring --method-rgx="(([a-z_][a-zA-Z0-9_]{2,})|(_[a-z0-9_]*)|(__[a-zA-Z][a-zA-Z0-9_]+__))$" --variable-rgx="[a-zA-Z_][a-zA-Z0-9_]{1,30}$" --reports=y --score=y  --output-format=colorized  \{\} +