[lldb] move package generation from python to cmake

Summary: This is the last part. And we can remove the python script.

Subscribers: lldb-commits, mgorny

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D69019

lldb/scripts/Python/createPythonInit.py

@@ -0,0 +1,17 @@
+import os
+import sys
+
+pkgRelDir = sys.argv[1]
+pkgFiles = sys.argv[2:]
+
+getFileName = lambda f: os.path.splitext(os.path.basename(f))[0]
+importNames = ', '.join('"{}"'.format(getFileName(f)) for f in pkgFiles)
+
+script = """__all__ = [{import_names}]
+for x in __all__:
+  __import__('lldb.{pkg_name}.' + x)
+""".format(import_names=importNames, pkg_name=pkgRelDir.replace("/", "."))
+
+pkgIniFile = os.path.normpath(os.path.join(pkgRelDir, "__init__.py"))
+with open(pkgIniFile, "w") as f:
+    f.write(script)