feat(ci): add firebase preview to PRs (#5970)

.firebaserc

@@ -0,0 +1,5 @@
+{
+  "projects": {
+    "default": "ngx-bootstrap-demo"
+  }
+}

.travis.yml

@@ -1,6 +1,6 @@
 sudo: false
 language: node_js
-node_js: "10"
+node_js: "12"
 
 services:
   - xvfb
@@ -38,6 +38,8 @@ testPostDeploy: &testPostDeploy
 stages:
 - name: "Publish to ngx-bootstrap-ci"
   if: ( branch = development AND type = push ) OR type = pull_request OR tag =~ ^v\d+
+- name: "Deploy to firebase preview channel"
+  if: branch = development AND type = pull_request
 - name: Testing
   if: ( branch = development AND type = push ) OR type = pull_request OR tag =~ ^v\d+
 - name: deploy
@@ -140,6 +142,16 @@ jobs:
     - npm config set '//registry.npmjs.org/:_authToken' $NPM_AUTH_TOKEN_CI
     - if [[ "$TRAVIS_PULL_REQUEST" != false ]]; then npm unpublish --tag $TRAVIS_COMMIT --force; fi
 
+  - stage: "Deploy to firebase preview channel"
+    skip_cleanup: true
+    provider: firebase
+    project: ngx-bootstrap-demo
+    before_script:
+      - sudo apt-get install jq
+      - npm install firebase-tools -g
+      - npm run demo.ng-build
+    script: bash scripts/firebase/deploy-to-preview-channel.sh
+
   - &surge
     stage: deploy
     script:

firebase.json

@@ -0,0 +1,10 @@
+{
+  "hosting": {
+    "public": "demo/dist/browser",
+    "ignore": [
+      "firebase.json",
+      "**/.*",
+      "**/node_modules/**"
+    ]
+  }
+}

scripts/firebase/deploy-to-preview-channel.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+DEPLOY_TO_PREVIEW_CHANNEL_RESULT=$(firebase hosting:channel:deploy pr-$TRAVIS_PULL_REQUEST --expires 30d --token $FIREBASE_TOKEN --json)
+
+RESULT=`echo ${DEPLOY_TO_PREVIEW_CHANNEL_RESULT} | jq -r '.result'`
+NGX_BOOTSTRAP_DEMO=`echo ${RESULT} | jq -r '."ngx-bootstrap-demo"'`
+SITE=`echo ${NGX_BOOTSTRAP_DEMO} | jq -r .site`
+URL=`echo ${NGX_BOOTSTRAP_DEMO} | jq -r .url`
+EXPIRE_TIME_UTC=`echo ${NGX_BOOTSTRAP_DEMO} | jq -r .expireTime`
+EXPIRE_TIME=$(TZ='GMT' date -d $EXPIRE_TIME_UTC +%c)
+
+NEW_COMMENT="Project: $SITE \n Url: $URL \n This link will expire at $EXPIRE_TIME"
+COMMENTS=$(curl -X GET "https://api.github.com/repos/$TRAVIS_REPO_SLUG/issues/$TRAVIS_PULL_REQUEST/comments")
+
+SUBSTRING="Project: ngx-bootstrap-demo"
+COMMENT_ID=-1
+
+for row in $(echo "${COMMENTS}" | jq -r '.[] | @base64'); do
+echo ${row}
+  _jq() {
+     echo ${row} | base64 --decode | jq -r ${1}
+  }
+  BODY=$(_jq '.body')
+
+  if [[ ${BODY} == *"$SUBSTRING"* ]]; then
+    COMMENT_ID=$(_jq '.id')
+  fi
+done
+
+if [[ ${COMMENT_ID} -ge 0 ]];
+  then
+    curl -H "Authorization: token ${GITHUB_TOKEN}" -X PATCH -d "{\"body\": \"$NEW_COMMENT\"}" "https://api.github.com/repos/${TRAVIS_REPO_SLUG}/issues/comments/${COMMENT_ID}"
+  else
+    curl -H "Authorization: token ${GITHUB_TOKEN}" -X POST -d "{\"body\": \"$NEW_COMMENT\"}" "https://api.github.com/repos/${TRAVIS_REPO_SLUG}/issues/${TRAVIS_PULL_REQUEST}/comments"
+fi