Feature/drop pex requirement pants

src/asyncapi_python_pants/rules.py

@@ -1,4 +1,3 @@
-from importlib.metadata import version
 from pants.engine.internals.native_engine import (
     Digest,
     MergeDigests,
@@ -16,7 +15,6 @@
 from pants.engine.rules import rule, Get, MultiGet
 from pants.engine.process import ProcessResult
 from pants.source.source_root import SourceRoot, SourceRootRequest
-from pants.backend.python.target_types import ConsoleScript
 from pants.backend.python.util_rules.interpreter_constraints import (
     InterpreterConstraints,
 )
@@ -38,11 +36,9 @@ async def generate_python_from_asyncapi(
         PexRequest(
             output_filename="asyncapi-python-codegen.pex",
             internal_only=True,
-            requirements=PexRequirements(
-                [f"asyncapi-python[codegen]=={version('asyncapi-python')}"]
-            ),
+            requirements=PexRequirements([]),
             interpreter_constraints=InterpreterConstraints([">=3.9"]),
-            main=ConsoleScript("asyncapi-python-codegen"),
+            # No main parameter - creates a REPL-style PEX
         ),
     )
     transitive_targets = await Get(
@@ -67,11 +63,16 @@ async def generate_python_from_asyncapi(
     )
     output_dir = "_generated_files"
     module_name = request.protocol_target.address.target_name
+
+    # Use PexProcess to execute the PEX
     result = await Get(
         ProcessResult,
         PexProcess(
             pex,
             argv=[
+                "-m",
+                "asyncapi_python_codegen",  # Execute as module
+                "generate",  # Your CLI command
                 request.protocol_target[AsyncapiServiceField].value or "",
                 f"{output_dir}/{module_name}",
             ],