Add task to install all requirements of an integration (#108262)

* Add task to install the requirements of an integration

* Gather recursive requirements

* Move valid_integration to util

* Apply suggestions from code review

Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>

* Implement suggestions

---------

Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>

script/install_integration_requirements.py

@@ -0,0 +1,54 @@
+"""Install requirements for a given integration."""
+
+import argparse
+from pathlib import Path
+import subprocess
+import sys
+
+from .gen_requirements_all import gather_recursive_requirements
+from .util import valid_integration
+
+
+def get_arguments() -> argparse.Namespace:
+    """Get parsed passed in arguments."""
+    parser = argparse.ArgumentParser(
+        description="Install requirements for a given integration"
+    )
+    parser.add_argument(
+        "integration", type=valid_integration, help="Integration to target."
+    )
+
+    arguments = parser.parse_args()
+
+    return arguments
+
+
+def main() -> int | None:
+    """Install requirements for a given integration."""
+    if not Path("requirements_all.txt").is_file():
+        print("Run from project root")
+        return 1
+
+    args = get_arguments()
+
+    requirements = gather_recursive_requirements(args.integration)
+
+    cmd = [
+        sys.executable,
+        "-m",
+        "pip",
+        "install",
+        "-c",
+        "homeassistant/package_constraints.txt",
+        "-U",
+        *requirements,
+    ]
+    print(" ".join(cmd))
+    subprocess.run(
+        cmd,
+        check=True,
+    )
+
+
+if __name__ == "__main__":
+    sys.exit(main())