Enable Dynamic Library and Header Package Creation ( experimental PR - Do not Submit)

score/mw/com/deploy/copy_headers.bzl

@@ -0,0 +1,123 @@
+# *******************************************************************************
+# Copyright (c) 2025 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+# *******************************************************************************
+
+"""Rule to copy headers with path stripping into an include directory."""
+
+def _copy_headers_impl(ctx):
+    """Copy headers from extracted headers into include/ directory structure.
+
+    Filters out headers from nlohmann, boost, and visitor top-level directories.
+    """
+
+    # Define top-level directory names to exclude
+    exclude_top_level_dirs = [
+        "nlohmann",
+        #"boost",  # could not remove this due to linux dependency.
+        "visitor",
+    ]
+
+    input_headers = ctx.attr.headers.files.to_list()
+    output_headers = []
+
+    # Track unique output paths to avoid duplicate declarations
+    seen_paths = {}
+
+    for hdr in input_headers:
+        # Get the path and strip external repository prefixes
+        short_path = hdr.short_path
+
+        # Remove external repository prefix (e.g., "../communication~/" or "external/boost.core~/")
+        if short_path.startswith("../"):
+            parts = short_path.split("/")
+            if len(parts) >= 3:
+                # Skip ".." and "repo_name~", get the rest
+                relative_path = "/".join(parts[2:])
+            else:
+                relative_path = short_path
+        elif short_path.startswith("external/"):
+            parts = short_path.split("/")
+            if len(parts) >= 3:
+                # Skip "external" and "repo_name~", get the rest
+                relative_path = "/".join(parts[2:])
+            else:
+                relative_path = short_path
+        else:
+            relative_path = short_path
+
+        # Strip intermediate include/ directories from paths like:
+        # score/language/futurecpp/include/score/expected.hpp -> score/expected.hpp
+        # boost/include/boost/core.hpp -> boost/core.hpp
+        path_parts = relative_path.split("/")
+        if "include" in path_parts:
+            # Find the last occurrence of "include" and take everything after it
+            include_idx = len(path_parts) - 1 - path_parts[::-1].index("include")
+            relative_path = "/".join(path_parts[include_idx + 1:])
+            # Update path_parts after stripping include
+            path_parts = relative_path.split("/")
+
+        # Strip _virtual_includes directories from paths like:
+        # score/static_reflection/_virtual_includes/static_reflection/score/... -> score/...
+        if "_virtual_includes" in path_parts:
+            virtual_idx = path_parts.index("_virtual_includes")
+            if virtual_idx + 2 < len(path_parts):
+                relative_path = "/".join(path_parts[virtual_idx + 2:])
+            else:
+                relative_path = "/".join(path_parts[:virtual_idx] + path_parts[virtual_idx + 1:])
+            # Update path_parts after stripping _virtual_includes
+            path_parts = relative_path.split("/")
+
+        # NOW check the top-level directory AFTER all path processing
+        # Get the top-level directory name from the processed relative path
+        if len(path_parts) > 0:
+            top_level_dir = path_parts[0]
+        else:
+            top_level_dir = relative_path
+
+        # Check if top-level directory should be excluded
+        if top_level_dir in exclude_top_level_dirs:
+            # Skip this header - don't copy it
+            continue
+
+        # Create output file path
+        output_path = "include/" + relative_path
+
+        # Skip if we've already declared this output path
+        if output_path in seen_paths:
+            continue
+
+        seen_paths[output_path] = hdr
+
+        # Create output file in include/ directory
+        output_file = ctx.actions.declare_file(output_path)
+        output_headers.append(output_file)
+
+        # Copy the header
+        ctx.actions.run_shell(
+            inputs = [hdr],
+            outputs = [output_file],
+            command = "mkdir -p $(dirname {}) && rm -f {} && cp {} {}".format(output_file.path, output_file.path, hdr.path, output_file.path),
+            mnemonic = "CopyHeader",
+        )
+
+    return [DefaultInfo(files = depset(output_headers))]
+
+copy_headers = rule(
+    implementation = _copy_headers_impl,
+    attrs = {
+        "headers": attr.label(
+            mandatory = True,
+            doc = "Target providing headers to copy",
+        ),
+    },
+    doc = "Copies headers into an include/ directory with proper path structure",
+)

score/mw/com/deploy/extract_headers_for_deps.bzl

@@ -0,0 +1,79 @@
+# *******************************************************************************
+# Copyright (c) 2025 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+# *******************************************************************************
+
+"""Rule to extract PUBLIC headers from cc_library targets."""
+
+def _extract_public_headers_impl(ctx):
+    """Implementation function to extract PUBLIC headers from CcInfo provider.
+
+    This extracts:
+    1. Direct public headers (from 'hdrs' attribute) of specified deps
+    2. Transitive public headers from all dependencies
+
+    It does NOT include:
+    - Private headers (from 'srcs' attribute with .h extension)
+    - Implementation files
+    """
+
+    # Collect all public headers transitively
+    all_headers = []
+
+    print("=== extract_headers: Starting header extraction ===")
+    print("Number of deps:", len(ctx.attr.deps))
+
+    for dep in ctx.attr.deps:
+        if CcInfo not in dep:
+            print("Skipping dep (no CcInfo):", dep.label)
+            continue
+
+        print("Processing dep:", dep.label)
+        cc_info = dep[CcInfo]
+        compilation_context = cc_info.compilation_context
+
+        # headers: All headers needed for compilation (public + transitive)
+        headers_depset = compilation_context.headers
+        headers_list = headers_depset.to_list()
+        print("  Found", len(headers_list), "headers")
+
+        # Print first 10 headers as sample
+        for i, hdr in enumerate(headers_list[:10]):
+            print("    [", i, "]:", hdr.short_path)
+        if len(headers_list) > 10:
+            print("    ... and", len(headers_list) - 10, "more headers")
+
+        all_headers.append(headers_depset)
+
+    headers = depset(transitive = all_headers)
+    total_headers = len(headers.to_list())
+    print("=== Total headers extracted:", total_headers, "===")
+
+    return [DefaultInfo(files = headers)]
+
+extract_headers = rule(
+    implementation = _extract_public_headers_impl,
+    attrs = {
+        "deps": attr.label_list(
+            providers = [CcInfo],
+            doc = "cc_library targets to extract public headers from (includes transitive deps)",
+        ),
+    },
+    doc = """Extracts public headers from cc_library targets through CcInfo provider.
+
+    This rule extracts all headers that are part of the public API of the specified
+    cc_library targets, including their transitive dependencies. These are the headers
+    that consumers need to compile against these libraries.
+
+    Note: compilation_context.headers includes all headers needed for compilation,
+    which means it includes public headers from the target and all its transitive deps.
+    """,
+)

score/mw/com/example/ipc_bridge/BUILD

@@ -102,4 +102,11 @@ cc_library(
 
 exports_files([
     "etc/mw_com_config.json",
+    "assert_handler.cpp",
+    "assert_handler.h",
+    "datatype.cpp",
+    "datatype.h",
+    "sample_sender_receiver.cpp",
+    "sample_sender_receiver.h",
+    "main.cpp",
 ])

score/mw/com/impl/BUILD

@@ -220,6 +220,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",
         "//score/mw/com/impl/tracing:__subpackages__",
     ],
     deps = [
@@ -239,6 +240,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",
         "//score/mw/com/impl/tracing:__subpackages__",
     ],
     deps = [
@@ -257,6 +259,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",   
         "//score/mw/com/impl/methods:__pkg__",
         "//score/mw/com/impl/mocking:__pkg__",
         "//score/mw/com/impl/plumbing:__pkg__",
@@ -312,6 +315,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",
         "//score/mw/com/impl:__subpackages__",
     ],
     deps = [
@@ -337,6 +341,7 @@ cc_library(
     ],
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",
         "//score/mw/com/impl:__pkg__",
         "//score/mw/com/impl/rust:__pkg__",
     ],
@@ -375,6 +380,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",
         "//score/mw/com/impl/bindings/lola:__pkg__",
         "//score/mw/com/impl/bindings/mock_binding:__pkg__",
         "//score/mw/com/impl/plumbing:__subpackages__",
@@ -400,6 +406,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",
         "//score/mw/com/impl/bindings/lola:__pkg__",
         "//score/mw/com/impl/bindings/mock_binding:__pkg__",
         "//score/mw/com/impl/plumbing:__subpackages__",
@@ -425,6 +432,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",
         "//score/mw/com/impl/bindings/lola:__pkg__",
         "//score/mw/com/impl/bindings/mock_binding:__pkg__",
         "//score/mw/com/impl/plumbing:__subpackages__",
@@ -449,6 +457,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",
         "//score/mw/com/impl/bindings/lola:__pkg__",
         "//score/mw/com/impl/bindings/mock_binding:__pkg__",
         "//score/mw/com/impl/plumbing:__subpackages__",
@@ -478,6 +487,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",
         "//score/mw/com/impl/bindings/lola:__pkg__",
         "//score/mw/com/impl/bindings/mock_binding:__pkg__",
         "//score/mw/com/impl/plumbing:__subpackages__",
@@ -501,7 +511,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
-        "//score/mw/com/impl:__subpackages__",
+        "//score/mw/com:__subpackages__",
     ],
     deps = [
         ":instance_identifier",
@@ -517,7 +527,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
-        "//score/mw/com/impl:__subpackages__",
+        "//score/mw/com:__subpackages__",
     ],
     deps = [
         ":error",
@@ -532,7 +542,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
-        "//score/mw/com/impl:__subpackages__",
+        "//score/mw/com:__subpackages__",
     ],
     deps = [
         ":handle_type",

score/mw/com/impl/bindings/lola/BUILD

@@ -19,6 +19,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",
         "//score/mw/com/impl/bindings/lola/test:__pkg__",
         "//score/mw/com/impl/plumbing:__pkg__",
     ],
@@ -257,6 +258,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",
         "//score/mw/com/impl/bindings/lola/test:__pkg__",
         "//score/mw/com/impl/bindings/lola/test_doubles:__pkg__",
     ],
@@ -330,7 +332,9 @@ cc_library(
     ],
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
-    visibility = ["//score/mw/com/impl/bindings/lola/test:__pkg__"],
+    visibility = [
+        "//score/mw/com:__subpackages__",
+        "//score/mw/com/impl/bindings/lola/test:__pkg__"],
     deps = [
         ":event",
         ":event_control",
@@ -729,7 +733,9 @@ cc_library(
         "//score/mw/com/impl/tracing:service_element_tracing_data",
     ],
     tags = ["FFI"],
-    visibility = ["//score/mw/com/impl/bindings/lola:__subpackages__"],
+    visibility = [
+        "//score/mw/com:__subpackages__",
+        "//score/mw/com/impl/bindings/lola:__subpackages__"],
     deps = [
         "//score/mw/com/impl:binding_type",
         "//score/mw/com/impl:runtime",

score/mw/com/impl/plumbing/BUILD

@@ -20,6 +20,7 @@ cc_library(
     features = COMPILER_WARNING_FEATURES,
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",
         "//score/mw/com/impl:__subpackages__",
     ],
     deps = [
@@ -601,6 +602,7 @@ cc_library(
     ],
     tags = ["FFI"],
     visibility = [
+        "//score/mw/com:__subpackages__",
         "//score/mw/com/impl:__subpackages__",
     ],
     deps = [
@@ -846,6 +848,7 @@ cc_unit_test_suites_for_host_and_qnx(
 rust_library(
     name = "sample_ptr_rs",
     srcs = ["sample_ptr.rs"],
+    tags = ["rust"],
     visibility = [
         "//score/mw/com:__subpackages__",
     ],