fix(cicd): keep branch follower debug JSON parseable

scripts/native/cicd/controller-one-shot.sh

@@ -3,8 +3,6 @@ set -eu
 
 cd /work
 rm -rf /work/unidesk
-started_at=$(date -Iseconds)
-echo "branch-follower one-shot started ${started_at}" >&2
 
 /etc/unidesk-cicd-branch-follower/sync-source.sh \
   "${UNIDESK_CONTROLLER_SOURCE_REPOSITORY}" \
@@ -16,6 +14,34 @@ git clone --branch "${UNIDESK_CONTROLLER_SOURCE_BRANCH}" "/cache/${UNIDESK_CONTR
 cp /etc/unidesk-cicd-branch-follower/cicd-branch-followers.yaml /work/unidesk/config/cicd-branch-followers.yaml
 cd /work/unidesk
 
-"$@"
+machine_output=false
+for arg in "$@"; do
+  case "$arg" in
+    --json|--raw|json)
+      machine_output=true
+      ;;
+  esac
+done
 
-echo "branch-follower one-shot finished $(date -Iseconds)" >&2
+if [ "${machine_output}" = true ]; then
+  output_file=$(mktemp)
+  if "$@" >"${output_file}"; then
+    node - "${output_file}" <<'NODE'
+const { readFileSync } = require("node:fs");
+const path = process.argv[2];
+const text = readFileSync(path, "utf8").trim();
+if (text.length === 0) process.exit(0);
+try {
+  process.stdout.write(JSON.stringify(JSON.parse(text)));
+} catch {
+  process.stdout.write(text);
+}
+NODE
+  else
+    status=$?
+    cat "${output_file}"
+    exit "${status}"
+  fi
+else
+  "$@"
+fi

scripts/src/cicd-branch-follower.ts

@@ -2862,16 +2862,39 @@ function parseJsonObject(text: string): Record<string, unknown> | null {
     const parsed = JSON.parse(trimmed) as unknown;
     return asOptionalRecord(parsed);
   } catch {
-    const start = trimmed.indexOf("{");
-    const end = trimmed.lastIndexOf("}");
-    if (start < 0 || end <= start) return null;
-    try {
-      const parsed = JSON.parse(trimmed.slice(start, end + 1)) as unknown;
-      return asOptionalRecord(parsed);
-    } catch {
-      return null;
+    return parseFirstJsonObject(trimmed);
+  }
+}
+
+function parseFirstJsonObject(text: string): Record<string, unknown> | null {
+  const start = text.indexOf("{");
+  if (start < 0) return null;
+  let depth = 0;
+  let inString = false;
+  let escaped = false;
+  for (let index = start; index < text.length; index += 1) {
+    const char = text[index];
+    if (inString) {
+      if (escaped) escaped = false;
+      else if (char === "\\") escaped = true;
+      else if (char === "\"") inString = false;
+      continue;
+    }
+    if (char === "\"") inString = true;
+    else if (char === "{") depth += 1;
+    else if (char === "}") {
+      depth -= 1;
+      if (depth === 0) {
+        try {
+          const parsed = JSON.parse(text.slice(start, index + 1)) as unknown;
+          return asOptionalRecord(parsed);
+        } catch {
+          return null;
+        }
+      }
     }
   }
+  return null;
 }
 
 function recordAt(root: Record<string, unknown>, path: string[]): Record<string, unknown> | null {