Use python instead?

Author: Astraea Quinn S

.github/workflows/integration-tests.yml

@@ -17,57 +17,52 @@ jobs:
         python-version: ["3.13"]
 
     steps:
-    - name: Parse testing SDK branch from PR body
+    - name: Parse testing SDK branch from PR body (Python)
       id: parse
       shell: bash
       run: |
         set -euo pipefail
     
-        # Safely capture the PR body without breaking on quotes/newlines.
-        # GitHub interpolates the expression *before* bash sees it.
-        pr_body=$(cat <<'EOF'
-        ${{ github.event.pull_request.body }}
-        EOF
-        )
+        python - << 'PYTHON'
+        import os
+        import re
 
-        default_ref="main"
+        body = os.environ.get("PR_BODY", "") or ""
+        default_ref = "main"
 
-        # Extract value from lines like:
-        #   TESTING_SDK_BRANCH: feature/foo
-        #   TESTING_SDK_BRANCH = feature/foo
-        #   some text TESTING_SDK_BRANCH :   feature/foo
-        #
-        # Rules:
-        # - case-insensitive key
-        # - accept ":" or "="
-        # - ignore surrounding whitespace
-        ref=$(
-          printf '%s\n' "$pr_body" \
-          | awk '
-              BEGIN { IGNORECASE = 1 }
-              {
-                # Match key, optional whitespace, : or =, optional whitespace, capture rest
-                if (match($0, /TESTING_SDK_BRANCH[[:space:]]*[:=][[:space:]]*(.*)$/, m)) {
-                  val = m[1]
-                  # Trim trailing whitespace
-                  sub(/[[:space:]]+$/, "", val)
-                  if (val != "") {
-                    print val
-                    exit 0
-                  }
-                }
-              }
-            ' \
-          | head -n1 \
-          | tr -d "\r"
-        )
+        # Regex:
+        # - (?i)            case-insensitive
+        # - TESTING_SDK_BRANCH
+        # - optional spaces
+        # - : or =
+        # - optional spaces
+        # - capture rest of line
+        pattern = re.compile(r"(?i)TESTING_SDK_BRANCH\s*[:=]\s*(.+)$")
 
-        if [ -z "${ref:-}" ]; then
-          ref="$default_ref"
-        fi
+        ref = None
+        for line in body.splitlines():
+          m = pattern.search(line)
+          if m:
+            # Strip trailing whitespace
+            candidate = m.group(1).strip()
+            if candidate:
+              ref = candidate
+              break
+    
+        if not ref:
+          ref = default_ref
 
-        echo "testing_ref=$ref" >> "$GITHUB_OUTPUT"
-        echo "Using testing SDK branch: $ref"
+        github_output = os.environ.get("GITHUB_OUTPUT")
+        if not github_output:
+          raise SystemExit("GITHUB_OUTPUT not set")
+    
+        with open(github_output, "a", encoding="utf-8") as fh:
+          fh.write(f"testing_ref={ref}\n")
+    
+        print(f"Using testing SDK branch: {ref}")
+        PYTHON
+      env:
+        PR_BODY: ${{ github.event.pull_request.body }}
     - name: Checkout Language SDK (this PR)
       uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8  # v5.0.0
       with: