docs: update gitea-cloudflare pages deploy snippet to inline manifest as form arg

docs/operations/gitea-cloudflare.pages.md

@@ -73,18 +73,30 @@ jobs:
 
 If the `cloudflare/pages-action@v1` action is unavailable from Gitea, use the direct Cloudflare Pages API (multipart/form-data with manifest):
 
+Snippet to generate a manifest in format `-F manifest='{"index.html": "abc123", "style.css": "def456"}'`
+
+```bash
+# Build manifest form argument from all files in frontend/dist
+form_args="-F manifest={"
+for file in $(find frontend/dist -type f | sed 's|^frontend/dist/||'); do
+  hash=$(sha256sum "frontend/dist/$file" | awk '{print $1}')
+  form_args="$form_args\"$file\":\"$hash\","
+done
+form_args="${form_args%,}}" # remove trailing comma and close JSON
+```
+
 ```yaml
 - name: Generate deployment manifest
   run: |
     cd frontend/dist
-          echo "{" > manifest.json
+    form_args="-F manifest={"
-          first=true
+    for file in $(find . -type f ! -name manifest.json | sed 's|^\./||'); do
-          for file in $(find . -type f | sed 's|^\./||'); do
       hash=$(sha256sum "$file" | awk '{print $1}')
-            if [ "$first" = true ]; then first=false; else echo "," >> manifest.json; fi
+      form_args="$form_args\"$file\":\"$hash\","
-            printf '  "%s": "%s"' "$file" "$hash" >> manifest.json
     done
-          echo "" >> manifest.json && echo "}" >> manifest.json
+    form_args="${form_args%,}}" # remove trailing comma and close JSON
+    echo "Form arguments: $form_args"
+    echo "FORM_ARGS=$form_args" >> $GITHUB_ENV
 
 - name: Deploy to Cloudflare Pages
   env:
@@ -92,10 +104,7 @@ If the `cloudflare/pages-action@v1` action is unavailable from Gitea, use the di
     CLOUDFLARE_ACCOUNT_ID: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
   run: |
     cd frontend/dist
-          form_args="-F manifest=@manifest.json"
+    form_args="$FORM_ARGS" # use form arguments generated in previous step
-          for file in $(find . -type f ! -name manifest.json | sed 's|^\./||'); do
-            form_args="$form_args -F $file=@$file"
-          done
     COMMIT_HASH=$(git rev-parse --short HEAD 2>/dev/null || echo "unknown")
     curl -sS -X POST \
       "https://api.cloudflare.com/client/v4/accounts/${CLOUDFLARE_ACCOUNT_ID}/pages/projects/linearvoid/deployments" \