1 files changed, 46 insertions, 0 deletions
diff --git a/pkgs/servers/home-assistant/build-custom-component/check_manifest.py b/pkgs/servers/home-assistant/build-custom-component/check_manifest.py
new file mode 100644
index 00000000000..bbe9535824e
--- /dev/null
+++ b/pkgs/servers/home-assistant/build-custom-component/check_manifest.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+
+import json
+import importlib_metadata
+import sys
+
+from packaging.requirements import Requirement
+
+
+def check_requirement(req: str):
+    # https://packaging.pypa.io/en/stable/requirements.html
+    requirement = Requirement(req)
+    try:
+        version = importlib_metadata.distribution(requirement.name).version
+    except importlib_metadata.PackageNotFoundError:
+        print(f"  - Dependency {requirement.name} is missing", file=sys.stderr)
+        return False
+
+    # https://packaging.pypa.io/en/stable/specifiers.html
+    if not version in requirement.specifier:
+        print(
+            f"  - {requirement.name}{requirement.specifier} expected, but got {version}",
+            file=sys.stderr,
+        )
+        return False
+
+    return True
+
+
+def check_manifest(manifest_file: str):
+    with open(manifest_file) as fd:
+        manifest = json.load(fd)
+    if "requirements" in manifest:
+        ok = True
+        for requirement in manifest["requirements"]:
+            ok &= check_requirement(requirement)
+        if not ok:
+            print("Manifest requirements are not met", file=sys.stderr)
+            sys.exit(1)
+
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        raise RuntimeError(f"Usage {sys.argv[0]} <manifest>")
+    manifest_file = sys.argv[1]
+    check_manifest(manifest_file)