Port ara.setup helper modules from 0.x to 1.0

0.x has helper modules to easily find the path where things are located.
These weren't originally in 1.0 mostly because ara-plugins was split
into another project.

We can add those back in for convenience now.

Change-Id: I8272fd6f43b08f71e0bce3626dbcee3ca1fc85ac

README.rst

@@ -29,8 +29,7 @@ Here's how you can get started from scratch with default settings:
     pip install ansible git+https://github.com/openstack/ara@feature/1.0
 
     # Tell Ansible to use the ARA callback plugin
-    # "python -m ara.plugins" provides the path to the ARA plugins directory
-    export ANSIBLE_CALLBACK_PLUGINS="$(python -m ara.plugins)/callback"
+    export ANSIBLE_CALLBACK_PLUGINS="$(python -m ara.setup.callback_plugins)"
 
     # Run your playbook as your normally would
     ansible-playbook playbook.yml

ara/plugins/__init__.py

@@ -1,3 +0,0 @@
-import os
-
-LOCATION = os.path.abspath(os.path.dirname(__file__))

ara/setup/README.rst

@@ -0,0 +1,5 @@
+This directory contains scripts meant to help configuring ARA with Ansible.
+
+For more information, visit the documentation_.
+
+.. _documentation: http://ara.readthedocs.io/en/latest/configuration.html

ara/setup/__init__.py

@@ -0,0 +1,25 @@
+#  Copyright (c) 2018 Red Hat, Inc.
+#
+#  This file is part of ARA Records Ansible.
+#
+#  ARA is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  ARA is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with ARA.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+
+# The path where ARA is installed (parent directory)
+path = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
+
+plugins = os.path.abspath(os.path.join(path, "plugins"))
+action_plugins = os.path.abspath(os.path.join(plugins, "actions"))
+callback_plugins = os.path.abspath(os.path.join(plugins, "callbacks"))

ara/setup/action_plugins.py

@@ -0,0 +1,23 @@
+#  Copyright (c) 2019 Red Hat, Inc.
+#
+#  This file is part of ARA Records Ansible.
+#
+#  ARA is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  ARA is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with ARA.  If not, see <http://www.gnu.org/licenses/>.
+
+from __future__ import print_function
+
+from . import action_plugins
+
+if __name__ == "__main__":
+    print(action_plugins)

ara/setup/ansible.py

@@ -0,0 +1,31 @@
+#  Copyright (c) 2019 Red Hat, Inc.
+#
+#  This file is part of ARA Records Ansible.
+#
+#  ARA is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  ARA is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with ARA.  If not, see <http://www.gnu.org/licenses/>.
+
+from __future__ import print_function
+
+from . import action_plugins, callback_plugins
+
+config = """
+[defaults]
+callback_plugins={}
+action_plugins={}
+""".format(
+    callback_plugins, action_plugins
+)
+
+if __name__ == "__main__":
+    print(config.strip())

ara/setup/callback_plugins.py

@@ -0,0 +1,23 @@
+#  Copyright (c) 2019 Red Hat, Inc.
+#
+#  This file is part of ARA Records Ansible.
+#
+#  ARA is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  ARA is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with ARA.  If not, see <http://www.gnu.org/licenses/>.
+
+from __future__ import print_function
+
+from . import callback_plugins
+
+if __name__ == "__main__":
+    print(callback_plugins)

ara/setup/env.py

@@ -0,0 +1,48 @@
+#  Copyright (c) 2019 Red Hat, Inc.
+#
+#  This file is part of ARA Records Ansible.
+#
+#  ARA is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  ARA is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with ARA.  If not, see <http://www.gnu.org/licenses/>.
+
+from __future__ import print_function
+
+import os
+from distutils.sysconfig import get_python_lib
+
+from . import action_plugins, callback_plugins
+
+exports = """
+export ANSIBLE_CALLBACK_PLUGINS={}
+export ANSIBLE_ACTION_PLUGINS={}
+""".format(
+    callback_plugins, action_plugins
+)
+
+if "VIRTUAL_ENV" in os.environ:
+    """ PYTHONPATH may be exported when 'ara' module is installed in a
+    virtualenv and ansible is installed on system python to avoid ansible
+    failure to find ara module.
+    """
+    # inspired by https://stackoverflow.com/a/122340/99834
+    lib = get_python_lib()
+    if "PYTHONPATH" in os.environ:
+        python_paths = os.environ["PYTHONPATH"].split(os.pathsep)
+    else:
+        python_paths = []
+    if lib not in python_paths:
+        python_paths.append(lib)
+        exports += "export PYTHONPATH=%s\n" % os.pathsep.join(python_paths)
+
+if __name__ == "__main__":
+    print(exports.strip())

ara/setup/path.py

@@ -1,6 +1,6 @@
-#  Copyright (c) 2018 Red Hat, Inc.
+#  Copyright (c) 2019 Red Hat, Inc.
 #
-#  This file is part of ARA: Ansible Run Analysis.
+#  This file is part of ARA Records Ansible.
 #
 #  ARA is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
@@ -15,7 +15,9 @@
 #  You should have received a copy of the GNU General Public License
 #  along with ARA.  If not, see <http://www.gnu.org/licenses/>.
 
-from ara.plugins import LOCATION
+from __future__ import print_function
+
+from . import path
 
 if __name__ == "__main__":
-    print(LOCATION)
+    print(path)

ara/setup/plugins.py

@@ -0,0 +1,23 @@
+#  Copyright (c) 2019 Red Hat, Inc.
+#
+#  This file is part of ARA Records Ansible.
+#
+#  ARA is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  ARA is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with ARA.  If not, see <http://www.gnu.org/licenses/>.
+
+from __future__ import print_function
+
+from . import plugins
+
+if __name__ == "__main__":
+    print(plugins)

roles/ara_tests/tasks/main.yaml

@@ -68,15 +68,15 @@
     virtualenv_python: python3
 
 - name: Get ARA plugins directory
-  command: "{{ ara_tests_virtualenv }}/bin/python -m ara.plugins"
-  register: ara_plugins
+  command: "{{ ara_tests_virtualenv }}/bin/python -m ara.setup.plugins"
+  register: ara_setup_plugins
 
 # These aren't in the same task (i.e, with loop) so we can tell individual test
 # runs apart easily rather than keeping all the output bundled in a single task.
 # TODO: Add validation for the tests
 - environment:
-    ANSIBLE_CALLBACK_PLUGINS: "{{ ara_plugins.stdout }}/callback"
-    ANSIBLE_ACTION_PLUGINS: "{{ ara_plugins.stdout }}/action"
+    ANSIBLE_CALLBACK_PLUGINS: "{{ ara_setup_plugins.stdout }}/callback"
+    ANSIBLE_ACTION_PLUGINS: "{{ ara_setup_plugins.stdout }}/action"
     ARA_DEBUG: true
     ARA_LOG_LEVEL: DEBUG
     ARA_BASE_DIR: "{{ ara_tests_data }}"