[ci] Use SEMVER for builds (#4)

* Use SEMVER

Author: Ryan Faircloth

.circleci/config.yml

@@ -3,6 +3,83 @@ version: 2.1
 orbs:
   python: circleci/python@0.2.1
 
+  splunk-release:
+    executors:
+      python37:
+        docker:
+          - image: circleci/python:3.7
+    commands:
+      tag:
+        parameters:
+          gh_user:
+            description: Git Hub username
+            type: string
+          gh_token:
+            description: Git Hub token
+            type: string
+          tag_level:
+            description: Tag level
+            type: string
+        steps:
+          - run:
+              name: TAG
+              command: |
+                git remote set-url origin https://<<parameters.gh_user>>:<<parameters.gh_token>>@github.com/${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}.git
+                ./semtag <<parameters.tag_level>>
+      merge-to-master:
+        parameters:
+          gh_user:
+            description: Git Hub username
+            type: string
+          gh_token:
+            description: Git Hub token
+            type: string
+        steps:
+          - run:
+              name: Merge
+              command: |
+                git remote set-url origin https://<<parameters.gh_user>>:<<parameters.gh_token>>@github.com/${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}.git
+                git config --global user.email "addonreleasesrv@splunk.com"
+                git config --global user.name "Add on release service"
+                git pull origin master
+                git merge master -m "Merge from master"
+                git checkout master
+                git merge develop
+                git push
+    jobs:
+      tag:
+        parameters:
+          gh_user:
+            description: Git Hub username
+            type: string
+          gh_token:
+            description: Git Hub token
+            type: string
+          tag_level:
+            description: Tag level
+            type: string
+        executor: python37
+        steps:
+          - checkout
+          - tag:
+              tag_level: <<parameters.tag_level>>
+              gh_user: <<parameters.gh_user>>
+              gh_token: <<parameters.gh_token>>
+      merge-to-master:
+        executor: python37
+        parameters:
+          gh_user:
+            description: Git Hub username
+            type: string
+          gh_token:
+            description: Git Hub token
+            type: string
+        steps:
+          - checkout
+          - merge-to-master:
+              gh_user: <<parameters.gh_user>>
+              gh_token: <<parameters.gh_token>>
+
 executors:
   linux:
     machine:
@@ -119,6 +196,23 @@ jobs:
       - store_artifacts:
           path: htmlcov
 
+  publish-pypi:
+    docker:
+      - image: circleci/python:3.7
+    steps:
+      - setup_remote_docker:
+          docker_layer_caching: true
+      - attach_workspace:
+          at: /tmp/workspace
+      - checkout
+      - run:
+          name: "Publish on PyPI"
+          command: |
+            PATH=$PATH:/usr/local/go/bin
+            pip install twine
+            python setup.py sdist bdist_wheel
+            twine upload dist/*
+
 workflows:
   main:
     jobs:
@@ -127,9 +221,104 @@ workflows:
             parameters:
               os: [linux]
               python-version: ["2.7.17", "3.7.4"]
+          filters:
+            branches:
+              only: /.*/
       - test-splunk:
           matrix:
             parameters:
               os: [linux]
               splunk-version: ["7.2", "7.3", "8.0"]
               python-version: ["2.7.17", "3.7.4"]
+          filters:
+            branches:
+              only: /.*/
+      - splunk-release/tag:
+          name: tag-alpha
+          tag_level: alpha
+          gh_user: ${GH_USER}
+          gh_token: ${GH_PAT}
+          filters:
+            branches:
+              only: develop
+          requires:
+            - test-unit
+      - approval-tag-beta:
+          requires:
+            - tag-alpha
+          type: approval
+          filters:
+            branches:
+              only: develop
+      - splunk-release/tag:
+          name: tag-beta
+          tag_level: beta
+          gh_user: ${GH_USER}
+          gh_token: ${GH_PAT}
+          requires:
+            - approval-tag-beta
+      - approval-merge-beta-to-master:
+          requires:
+            - tag-beta
+          type: approval
+          filters:
+            branches:
+              only: develop
+      - splunk-release/merge-to-master:
+          name: merge-beta-to-master
+          gh_user: ${GH_USER}
+          gh_token: ${GH_PAT}
+          requires:
+            - approval-merge-beta-to-master
+          filters:
+            branches:
+              only: develop
+      - splunk-release/tag:
+          name: tag-candidate
+          tag_level: candidate
+          gh_user: ${GH_USER}
+          gh_token: ${GH_PAT}
+          filters:
+            branches:
+              only: master
+      - approval-tag-final-major:
+          type: approval
+          requires:
+            - tag-candidate
+      - splunk-release/tag:
+          name: tag-final-major
+          tag_level: final -s major
+          gh_user: ${GH_USER}
+          gh_token: ${GH_PAT}
+          requires:
+            - approval-tag-final-major
+      - approval-tag-final-minor:
+          type: approval
+          requires:
+            - tag-candidate
+      - splunk-release/tag:
+          name: tag-final-minor
+          tag_level: final -s minor
+          gh_user: ${GH_USER}
+          gh_token: ${GH_PAT}
+          requires:
+            - approval-tag-final-minor
+      - approval-tag-final-patch:
+          type: approval
+          requires:
+            - tag-candidate
+      - splunk-release/tag:
+          name: tag-final-patch
+          tag_level: final -s patch
+          gh_user: ${GH_USER}
+          gh_token: ${GH_PAT}
+          requires:
+            - approval-tag-final-patch
+  publish:
+    jobs:
+      - publish-pypi:
+          filters:
+            branches:
+              ignore: /.*/
+            tags:
+              only: /^v\d*\.\d*\.\d*.*$/