Make aria dependency optional

Since cloudify has announced the retirement of aria, we need to add
opnfv-toscaparser as our default backend. However, since they have
conflicting dependencies, we need to make aria dependency optional.

Change-Id: I22bb5f7411162828226d4290fd00dfd91d49efa3
Issue-ID: VNFSDK-292
Signed-off-by: Lianhao Lu <lianhao.lu@intel.com>

5 files changed, 14 insertions, 8 deletions

diff --git a/requirements.txt b/requirements.txt
index f27a466..45562d5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
-ruamel.yaml<0.12.0,>=0.11.12
-requests<2.14.0,>=2.3.0
-apache-ariatosca==0.1.1
+ruamel.yaml<0.16
+requests>=2.3.0
+#apache-ariatosca==0.1.1
 stevedore >= 1.9.0
 udatetime<1.0,>=0.0.16
+nfv-toscaparser<2.0,>=1.0.1
diff --git a/setup.py b/setup.py
index c6ba237..7615d29 100644
--- a/setup.py
+++ b/setup.py
@@ -47,6 +47,8 @@ with open(os.path.join(root_dir, 'requirements.txt')) as requirements:
         else:
             install_requires.append(requirement)
 
+extras_require['aria'] = 'apache-ariatosca==0.1.1'
+
 version = { }
 with open(os.path.join(root_dir, 'vnfsdk_pkgtools/version.py')) as fp:
     exec(fp.read(), version)
@@ -83,7 +85,7 @@ setup(
         'console_scripts': [
             'vnfsdk = vnfsdk_pkgtools.cli.__main__:main'],
         'vnfsdk.pkgtools.validator': [
-            'aria = vnfsdk_pkgtools.validator.aria_validator:AriaValidator'
+            'aria = vnfsdk_pkgtools.validator.aria_validator:AriaValidator [aria]'
         ]
     },
 
diff --git a/tox.ini b/tox.ini
index 17f33c7..efdc361 100644
--- a/tox.ini
+++ b/tox.ini
@@ -33,7 +33,8 @@ basepython =
 
 [testenv:py27]
 commands =
-        coverage run --module pytest --junitxml xunit-results.xml
+        pip install 'apache-ariatosca==0.1.1'
+        coverage run --module pytest --junitxml xunit-results.xml tests/
         coverage xml --omit=".tox/py27/*","tests/*"
         coverage report --omit=".tox/py27/*","tests/*"
 	#pytest tests --cov-report term-missing --cov vnfsdk_pkgtools
diff --git a/vnfsdk_pkgtools/cli/__main__.py b/vnfsdk_pkgtools/cli/__main__.py
index 88776de..7cb4e54 100644
--- a/vnfsdk_pkgtools/cli/__main__.py
+++ b/vnfsdk_pkgtools/cli/__main__.py
@@ -18,7 +18,6 @@ from vnfsdk_pkgtools.packager import csar
 import sys
 import logging
 import argparse
-from aria import install_aria_extensions
 import os
 import shutil
 import tempfile
@@ -53,8 +52,6 @@ def parse_args(args_list):
     """
     CLI entry point
     """
-    install_aria_extensions()
-
     parser = argparse.ArgumentParser(description='VNF SDK CSAR manipulation tool')
 
     subparsers = parser.add_subparsers(help='csar-create')
diff --git a/vnfsdk_pkgtools/validator/aria_validator.py b/vnfsdk_pkgtools/validator/aria_validator.py
index b4b947c..e84d017 100644
--- a/vnfsdk_pkgtools/validator/aria_validator.py
+++ b/vnfsdk_pkgtools/validator/aria_validator.py
@@ -15,6 +15,7 @@
 
 import os
 
+from aria import install_aria_extensions
 from aria.parser.loading import UriLocation
 from aria.parser.consumption import (
     ConsumptionContext,
@@ -29,6 +30,10 @@ from vnfsdk_pkgtools import validator
 
 
 class AriaValidator(validator.ValidatorBase):
+    def __init__(self):
+        super(AriaValidator, self).__init__()
+        install_aria_extensions()
+
     def validate(self, reader):
         context = ConsumptionContext()
         service_template_path = os.path.join(reader.destination,