[lldb] Unifying lldb python path

Based on mgorny@'s D67890

There are 3 places where python site-package path is calculated
independently:

1. finishSwigPythonLLDB.py where files are written to site-packages.

2. lldb/scripts/CMakeLists.txt where site-packages are installed.

3. ScriptInterpreterPython.cpp where site-packages are added to
PYTHONPATH.

This change creates the path once and use it everywhere. So that they
will not go out of sync.

Also it provides a chance for cross compiling users to specify the right
path for site-packages.

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D68442

llvm-svn: 373991

1 files changed, 0 insertions, 44 deletions

diff --git a/lldb/scripts/get_relative_lib_dir.py b/lldb/scripts/get_relative_lib_dir.py
deleted file mode 100644
index 3afeeafd7b4..00000000000
--- a/lldb/scripts/get_relative_lib_dir.py
+++ /dev/null
@@ -1,44 +0,0 @@
-import distutils.sysconfig
-import os
-import platform
-import re
-import sys
-
-
-def get_python_relative_libdir():
-    """Returns the appropropriate python libdir relative to the build directory.
-
-    @param exe_path the path to the lldb executable
-
-    @return the python path that needs to be added to sys.path (PYTHONPATH)
-    in order to find the lldb python module.
-    """
-    if platform.system() != 'Linux':
-        return None
-
-    # We currently have a bug in lldb -P that does not account for
-    # architecture variants in python paths for
-    # architecture-specific modules.  Handle the lookup here.
-    # When that bug is fixed, we should just ask lldb for the
-    # right answer always.
-    arch_specific_libdir = distutils.sysconfig.get_python_lib(True, False)
-    split_libdir = arch_specific_libdir.split(os.sep)
-    lib_re = re.compile(r"^lib.*$")
-
-    for i in range(len(split_libdir)):
-        match = lib_re.match(split_libdir[i])
-        if match is not None:
-            # We'll call this the relative root of the lib dir.
-            # Things like RHEL will have an arch-specific python
-            # lib dir, which isn't 'lib' on x86_64.
-            return os.sep.join(split_libdir[i:])
-    # Didn't resolve it.
-    return None
-
-if __name__ == '__main__':
-    lib_dir = get_python_relative_libdir()
-    if lib_dir is not None:
-        sys.stdout.write(lib_dir)
-        sys.exit(0)
-    else:
-        sys.exit(1)