feature: add support for pywasm runtime

Author: mohanson

adapters/pywasm-runtime.py

@@ -0,0 +1,28 @@
+import argparse
+import os
+import sys
+
+import pywasm  # pip install pywasm
+
+parser = argparse.ArgumentParser()
+parser.add_argument("--version", action="store_true")
+parser.add_argument("--test-file", action="store")
+parser.add_argument("--arg", action="append", default=[])
+parser.add_argument("--env", action="append", default=[])
+parser.add_argument("--dir", action="append", default=[])
+
+args = parser.parse_args()
+
+if args.version:
+    print('pywasm: https://github.com/mohanson/pywasm/releases/latest')
+    sys.exit(0)
+
+runtime = pywasm.core.Runtime()
+wasi = pywasm.wasi.Preview1(
+    [os.path.basename(args.test_file)] + args.arg,
+    {e: e for e in args.dir},
+    dict([e.split('=') for e in args.env]),
+)
+wasi.bind(runtime)
+exit = wasi.main(runtime, runtime.instance_from_file(args.test_file))
+sys.exit(exit)