Refactor Github Action per b/485167538 (#581)

Co-authored-by: Ben Knutson <benknutson@google.com>

Author: google-admin

.github/workflows/pr_notification.yml

@@ -10,8 +10,11 @@ jobs:
     steps:
     - name: Pull Request Details
       run: |
-        echo "Pull Request: ${{ github.event.pull_request.title }}"
-        echo "Author: ${{ github.event.pull_request.user.login }}"
+        echo "Pull Request: ${GITHUB_EVENT_PULL_REQUEST_TITLE}"
+        echo "Author: ${GITHUB_EVENT_PULL_REQUEST_USER_LOGIN}"
+      env:
+        GITHUB_EVENT_PULL_REQUEST_TITLE: ${{ github.event.pull_request.title }}
+        GITHUB_EVENT_PULL_REQUEST_USER_LOGIN: ${{ github.event.pull_request.user.login }}
 
     - name: Google Chat Notification
       run: |
@@ -30,19 +33,19 @@ jobs:
                     {
                       "keyValue": {
                         "topLabel": "Repo",
-                        "content": "${{ github.event.pull_request.head.repo.full_name }}"
+                        "content": "${GITHUB_EVENT_PULL_REQUEST_HEAD_REPO_FULL_NAME}"
                       }
                     },
                     {
                       "keyValue": {
                         "topLabel": "Title",
-                        "content": "${{ github.event.pull_request.title }}"
+                        "content": "${GITHUB_EVENT_PULL_REQUEST_TITLE}"
                       }
                     },
                     {
                       "keyValue": {
                         "topLabel": "Creator",
-                        "content": "${{ github.event.pull_request.user.login }}"
+                        "content": "${GITHUB_EVENT_PULL_REQUEST_USER_LOGIN}"
                       }
                     },
                     {
@@ -76,7 +79,7 @@ jobs:
                             "text": "Open Pull Request",
                             "onClick": {
                               "openLink": {
-                                "url": "${{ github.event.pull_request.html_url }}"
+                                "url": "${GITHUB_EVENT_PULL_REQUEST_HTML_URL}"
                               }
                             }
                           }
@@ -89,3 +92,8 @@ jobs:
             }
           ]
         }'
+      env:
+        GITHUB_EVENT_PULL_REQUEST_HEAD_REPO_FULL_NAME: ${{ github.event.pull_request.head.repo.full_name }}
+        GITHUB_EVENT_PULL_REQUEST_TITLE: ${{ github.event.pull_request.title }}
+        GITHUB_EVENT_PULL_REQUEST_USER_LOGIN: ${{ github.event.pull_request.user.login }}
+        GITHUB_EVENT_PULL_REQUEST_HTML_URL: ${{ github.event.pull_request.html_url }}

.github/workflows/push_notification.yml

@@ -12,8 +12,11 @@ jobs:
     - name: Main Branch Push
       run: |
         echo "Workflow initiated by event with name: ${{ github.event_name }}"
-        echo "Pushing commit to main: ${{ github.event.head_commit.id }}"
-        echo "Pushed by: ${{ github.event.pusher.name }}"
+        echo "Pushing commit to main: ${GITHUB_EVENT_HEAD_COMMIT_ID}"
+        echo "Pushed by: ${GITHUB_EVENT_PUSHER_NAME}"
+      env:
+        GITHUB_EVENT_HEAD_COMMIT_ID: ${{ github.event.head_commit.id }}
+        GITHUB_EVENT_PUSHER_NAME: ${{ github.event.pusher.name }}
 
     - name: Push Notification to Google Chat
       run: |
@@ -24,21 +27,21 @@ jobs:
             {
               "header": {
                 "title": "Push to main branch",
-                "subtitle": "${{ github.event.head_commit.message }}"
+                "subtitle": "${GITHUB_EVENT_HEAD_COMMIT_MESSAGE}"
               },
               "sections": [
                 {
                   "widgets": [
                     {
                       "keyValue": {
                         "topLabel": "Repo",
-                        "content": "${{ github.event.repository.full_name }}"
+                        "content": "${GITHUB_EVENT_REPOSITORY_FULL_NAME}"
                       }
                     },
                     {
                       "keyValue": {
                         "topLabel": "Committed by",
-                        "content": "${{ github.event.head_commit.author.username }}"
+                        "content": "${GITHUB_EVENT_HEAD_COMMIT_AUTHOR_USERNAME}"
                       }
                     },
                     {
@@ -48,7 +51,7 @@ jobs:
                             "text": "Ref comparison",
                             "onClick": {
                               "openLink": {
-                                "url": "${{ github.event.compare }}"
+                                "url": "${GITHUB_EVENT_COMPARE}"
                               }
                             }
                           }
@@ -61,4 +64,9 @@ jobs:
             }
           ]
         }'
+      env:
+        GITHUB_EVENT_HEAD_COMMIT_MESSAGE: ${{ github.event.head_commit.message }}
+        GITHUB_EVENT_REPOSITORY_FULL_NAME: ${{ github.event.repository.full_name }}
+        GITHUB_EVENT_HEAD_COMMIT_AUTHOR_USERNAME: ${{ github.event.head_commit.author.username }}
+        GITHUB_EVENT_COMPARE: ${{ github.event.compare }}