Publish Vulpes Preview 15 sources for desktop, Android and Tundra

Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.

tools/inventory-gaia.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+"""Static inventory of the preserved, actually launched Gaia profile."""
+from pathlib import Path
+import json
+import re
+
+root = Path(__file__).resolve().parents[1]
+apps = root / "assets/webapps"
+report = {
+    "source": "assets/webapps",
+    "note": "Static references, including definitions: not a count of mandatory calls.",
+    "navigatorAPIs": {},
+    "legacyCustomElementFiles": [],
+    "apps": {},
+}
+for f in apps.rglob("*"):
+    if f.suffix not in (".js", ".html", ".webapp") or not f.is_file():
+        continue
+    s = f.read_text(errors="replace")
+    rel = str(f.relative_to(apps))
+    for api in set(re.findall(r"navigator\.(moz\w+|getDataStores)", s)):
+        info = report["navigatorAPIs"].setdefault(api, {"fileCount": 0, "examples": []})
+        info["fileCount"] += 1
+        if len(info["examples"]) < 3:
+            info["examples"].append(rel)
+    if "registerElement(" in s:
+        report["legacyCustomElementFiles"].append(rel)
+    if f.name == "manifest.webapp" and f.parent.parent == apps:
+        try:
+            d = json.loads(s)
+            report["apps"][f.parent.name] = {
+                "name": d.get("name"),
+                "permissions": d.get("permissions", {}),
+                "activities": list(d.get("activities", {})),
+            }
+        except ValueError:
+            pass
+out = root / "docs/legacy-dependencies.json"
+out.write_text(json.dumps(report, indent=2, ensure_ascii=False) + "\n")
+print(
+    len(report["navigatorAPIs"]),
+    "APIs referenced;",
+    len(report["apps"]),
+    "apps;",
+    len(report["legacyCustomElementFiles"]),
+    "files referencing Custom Elements v0",
+)