feat(site): migrate documentation to Docsy

update circleci config

.circleci/config.yml

@@ -2,16 +2,19 @@
 #
 # Check https://circleci.com/docs/2.0/language-java/ for more details
 #
-version: 2
-# Use dedicated machine for testcontainer
-# https://www.testcontainers.org/supported_docker_environment/continuous_integration/circle_ci/
-executorType: machine
+version: 2.1
+executors:
+  default-executor:
+    machine:
+      image: ubuntu-1604:201903-01
+  node-executor:
+    docker:
+      - image: circleci/node:latest
 jobs:
   build:
-#   docker:
-#      # specify the version you desire here
-#     - image: circleci/openjdk:8-jdk
-
+    # Use dedicated machine for testcontainer
+    # https://www.testcontainers.org/supported_docker_environment/continuous_integration/circle_ci
+    executor: default-executor
     working_directory: ~/repo
 
     environment:
@@ -40,3 +43,24 @@ jobs:
 
       - store_test_results:
           path: target/surefire-reports
+  build-site:
+    executor: node-executor
+
+    working_directory: ~/repo
+
+    steps:
+      - checkout
+      - run:
+          name: Build and Deploy Site
+          command: ./build-deploy-site.sh
+workflows:
+  version: 2
+  ci_build:
+    jobs:
+      - build
+      - build-site:
+          filters:
+            branches:
+              only: master
+          requires:
+            - build

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "site/themes/docsy"]
+	path = site/themes/docsy
+	url = https://github.com/google/docsy.git

build-deploy-site.sh

@@ -0,0 +1,77 @@
+#!/bin/bash
+#
+# Copyright 2019-2020 StreamThoughts.
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+last_commit="$(git diff --name-status HEAD~1 site | cat | grep 'site/')"
+
+HUGO_BUILD_DIR=$(pwd)/docs/
+HUGO_SOURCE_DIR=$(pwd)/site/
+HUGO_VERSION=0.60.1
+HUGO_DIST_DIR=/tmp/hugo/v${HUGO_VERSION}
+HUGO_RELEASE=https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_Linux-64bit.tar.gz
+
+# backup Git user info
+GIT_USER_NAME=$(git config user.name)
+GIT_USER_EMAIL=$(git config user.email)
+
+
+build_and_deploy(){
+  echo "Buildind Hugo site"
+  rm -rf docs/*
+  rm $HUGO_DIST_DIR && mkdir -p $HUGO_DIST_DIR
+  git config --global user.email circleci@circleci
+  git config --global user.name CircleCI
+  # update hugo theme submodule
+  git submodule sync && git submodule update --init --recursive
+  # install hugo and build
+  wget $HUGO_RELEASE -P $HUGO_DIST_DIR && \
+  (cd $HUGO_DIST_DIR; tar -xzvf $HUGO_DIST_DIR/hugo_extended_${HUGO_VERSION}_Linux-64bit.tar.gz) && \
+  (cd $HUGO_SOURCE_DIR; sudo npm install) && \
+  HUGO_ENV=production $HUGO_DIST_DIR/hugo -v -s $HUGO_SOURCE_DIR -d $HUGO_BUILD_DIR
+  if [[ $? -eq 0 ]]; then
+    echo "Deploying site updates"
+    git add docs
+    git commit -m "docs(gh-pages): build and deploy site [skip ci]"
+    git push
+  else
+    echo "Hugo build failed"
+  fi
+  # reset git config
+  git config --global user.email $GIT_USER_EMAIL
+  git config --global user.name $GIT_USER_NAME
+  exit $?
+}
+
+if [ $# -eq 1 ]; then
+case $1 in
+    --force)
+      build_and_deploy
+    ;;
+    *)
+       echo "Unknown arg $1"
+    ;;
+esac
+fi
+
+if [[ ${last_commit} ]]; then
+  build_and_deploy
+else
+  echo "Skipping site building, lastest commit message doesn't change path directory 'site/'"
+fi
+
+exit 0

site/assets/scss/_buttons.scss

@@ -0,0 +1,24 @@
+.btn {
+    display: inline-flex;
+    align-items: center;
+    border: none;
+    border-radius: 4px;
+    color: #ffffff;
+    font-size: 16px;
+    font-weight: bold;
+    letter-spacing: 1.06px;
+    text-align: center;
+    text-transform: uppercase;
+    width: 186px;
+    height: 52px;
+    cursor: pointer;
+    justify-content: center;
+    padding-left: 0.8em;
+    padding-right: 0.8em;
+
+    &-github {
+    	background-color: transparent;
+    	border: solid 1px #ffffff;
+    	color: #ffffff !important ; 
+    }
+}