Add sources, fix blank line issue

pyproject.toml

@@ -35,7 +35,7 @@ name = "rtl-manifest"  # REQUIRED, is the only field that cannot be marked as dy
 # https://packaging.python.org/guides/single-sourcing-package-version/
 
 # dynamic = ["version"]
-version = "0.2.0"  # REQUIRED, although can be dynamic
+version = "0.3.0"  # REQUIRED, although can be dynamic
 
 # This is a one-line description or tagline of what your project does. This
 # corresponds to the "Summary" metadata field:

src/rtl_manifest/rtl_manifest.py

@@ -1,6 +1,6 @@
 
 import argparse
-from typing import List
+from typing import List, Tuple
 import pathlib
 
 
@@ -21,7 +21,19 @@ def rtl_manifest_main():
     pass
 
 def read_sources(source_file: str) -> List[str]:
+    sources, incdirs = parse(source_file)
+
+    return sources
+
+def read_incdirs(source_file: str) -> List[str]:
+    sources, incdirs = parse(source_file)
+
+    return incdirs
+
+def parse(source_file: str) -> Tuple[List[str], List[str]]:
     files = []
+    incdirs = []
+
     base_dir = pathlib.Path(source_file).parent
 
 
@@ -30,12 +42,18 @@ def read_sources(source_file: str) -> List[str]:
             path = line.strip()
             if path.startswith("#"):
                 continue
+            if path == "":
+                continue
+            if path.startswith("`include "):
+                abs_path = pathlib.Path(base_dir / path.split()[1]).absolute()
+                incdirs.append(abs_path)
+                continue
             if (path.endswith("sources.list")):
                 new_path = pathlib.Path(base_dir) / path
-                for recursive_path in read_sources(new_path):
+                for recursive_path in parse(new_path):
                     files.append(recursive_path)
             else:
                 abs_path = pathlib.Path(base_dir / path).absolute()
                 files.append(str(abs_path))
 
-    return files
+    return files, incdirs

test/sources.list

@@ -1,3 +1,6 @@
 src/sub/submodule/sources.list
 src/example.sv
 # This is a comment!
+
+# ^ above was a blank line
+`include .