ci: Final CI fixes pass (#6556)

* Final CI fixes pass

* Change cut to awk

* Remove workflow_dispatch

* Start, success, failure messges

* Deploy from main and add comment

* Update .github/workflows/2-deploy-to-staging.yml
Co-authored-by: Zach Pomerantz <zzmp@uniswap.org>

* Update jobs to have correct comments, simplification in prod

---------
Co-authored-by: Zach Pomerantz <zzmp@uniswap.org>

.github/workflows/2-deploy-to-staging.yml

@@ -10,6 +10,16 @@ jobs:
     environment:
       name: deploy/staging
     steps:
+      - name: Send Slack message that deploy is starting
+        uses: slackapi/slack-github-action@007b2c3c751a190b6f0f040e47ed024deaa72844
+        with:
+          payload: |
+            {
+              "text": "Staging deploy started for branch: ${{ github.ref_name }}"
+            }
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
       - uses: actions/checkout@v3
       - uses: ./.github/actions/setup
       - run: yarn prepare
@@ -21,6 +31,7 @@ jobs:
         with:
           node-version: 16
       - name: Update Cloudflare Pages deployment
+        id: pages-deployment
         uses: cloudflare/pages-action@364c7ca09a4b57837c5967871d64a2c31adb8c0d
         with:
           apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
@@ -28,6 +39,19 @@ jobs:
           projectName: interface-staging
           directory: build
           githubToken: ${{ secrets.GITHUB_TOKEN }}
+          # Cloudflare uses `main` as the default production branch, so we push using the `main` branch so that it can be aliased by a custom domain.
+          branch: main
+      - name: Send Slack message about deployment outcome
+        uses: slackapi/slack-github-action@007b2c3c751a190b6f0f040e47ed024deaa72844
+        if: always()
+        with:
+          payload: |
+            {
+              "text": "Staging deploy **${{ steps.pages-deployment.outcome }}** for: ${{ github.ref_name }}"
+            }
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
       - name: Upload source maps to Sentry
         uses: getsentry/action-release@bd5f874fcda966ba48139b0140fb3ec0cb3aabdd
         continue-on-error: true

.github/workflows/4-deploy-to-prod.yml

@@ -10,6 +10,16 @@ jobs:
     environment:
       name: deploy/prod
     steps:
+      - name: Send Slack message that build is starting
+        uses: slackapi/slack-github-action@007b2c3c751a190b6f0f040e47ed024deaa72844
+        with:
+          payload: |
+            {
+              "text": "Production deploy started for branch: ${{ github.ref_name }}"
+            }
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
       - uses: actions/checkout@v3
       - uses: ./.github/actions/setup
       - run: yarn prepare
@@ -70,14 +80,27 @@ jobs:
 
       - name: Update Cloudflare Pages deployment
         uses: cloudflare/pages-action@364c7ca09a4b57837c5967871d64a2c31adb8c0d
+        id: pages-deployment
         with:
           apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
           accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
           projectName: ${{ secrets.CLOUDFLARE_PROJECT_NAME }}
           directory: build
           githubToken: ${{ secrets.GITHUB_TOKEN }}
+          # Cloudflare uses `main` as the default production branch, so we push using the `main` branch so that it can be aliased by a custom domain.
           branch: main
 
+      - name: Send Slack message about deployment outcome
+          uses: slackapi/slack-github-action@007b2c3c751a190b6f0f040e47ed024deaa72844
+          if: always()
+          with:
+            payload: |
+              {
+                "text": "Production deploy **${{ steps.pages-deployment.outcome }}** for: ${{ github.ref_name }}"
+              }
+          env:
+            SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+            SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
       - name: Upload source maps to Sentry
         uses: getsentry/action-release@4744f6a65149f441c5f396d5b0877307c0db52c7
         continue-on-error: true

.github/workflows/notify-slack-on-release-merge.yml

@@ -11,8 +11,10 @@ name: Slack notifications for releases/* merges
 #  | sed 's/"//g' | sed 's/\\t/;/g' | sed 's/\\n/;/g' | sed 's/\\//g' \
 # We then use awk to format the TSV into a Slack message
 #  | awk -F';' '{print "• <"$1"|"$2"> (<https://github.com/"$3"|"$3">, "$4") - "$5}' \
-# Finally, we need to deal with some escaping issues with newlines so that we don't break the Slack message format
+# We need to deal with some escaping issues with newlines so that we don't break the Slack message format
 #  | sed 's/$/\\n/g' | tr -d '\n' \
+# Finally we have to truncate the message to 3,000 characters max, otherwise Slack will reject it
+#  | awk '{print substr($0,0,3000);}' \
 # Then shove the bytes into a file to store them in their exact format
 #  > /tmp/parsed_github_context
 
@@ -38,6 +40,7 @@ jobs:
           | sed 's/"//g' | sed 's/\\t/;/g' | sed 's/\\n/;/g' | sed 's/\\//g' \
           | awk -F';' '{print "• <"$1"|"$2"> (<https://github.com/"$3"|"$3">, "$4") - "$5}' \
           | sed 's/$/\\n/g' | tr -d '\n' \
+          | awk '{print substr($0,0,3000);}' \
           > /tmp/parsed_github_context
           echo "SLACK_COMMITS=$(cat /tmp/parsed_github_context)" >> "$GITHUB_OUTPUT"
       - name: Send custom JSON data to Slack workflow