From 9e6d35490a6542f9c97607f93c2ef8ca8e03cbcc Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Wed, 6 Jan 2016 20:12:03 +0000
Subject: Vendor import of lldb trunk r256945:
 https://llvm.org/svn/llvm-project/lldb/trunk@256945

---
 utils/vim-lldb/python-vim-lldb/import_lldb.py | 61 +++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 utils/vim-lldb/python-vim-lldb/import_lldb.py

(limited to 'utils/vim-lldb/python-vim-lldb/import_lldb.py')

diff --git a/utils/vim-lldb/python-vim-lldb/import_lldb.py b/utils/vim-lldb/python-vim-lldb/import_lldb.py
new file mode 100644
index 0000000000000..a2145d504661f
--- /dev/null
+++ b/utils/vim-lldb/python-vim-lldb/import_lldb.py
@@ -0,0 +1,61 @@
+
+# Locate and load the lldb python module
+
+import os, sys
+
+def import_lldb():
+  """ Find and import the lldb modules. This function tries to find the lldb module by:
+      1. Simply by doing "import lldb" in case the system python installation is aware of lldb. If that fails,
+      2. Executes the lldb executable pointed to by the LLDB environment variable (or if unset, the first lldb
+         on PATH") with the -P flag to determine the PYTHONPATH to set. If the lldb executable returns a valid
+         path, it is added to sys.path and the import is attempted again. If that fails, 3. On Mac OS X the
+         default Xcode 4.5 installation path.
+  """
+
+  # Try simple 'import lldb', in case of a system-wide install or a pre-configured PYTHONPATH
+  try:
+    import lldb
+    return True
+  except ImportError:
+    pass
+
+  # Allow overriding default path to lldb executable with the LLDB environment variable
+  lldb_executable = 'lldb'
+  if 'LLDB' in os.environ and os.path.exists(os.environ['LLDB']):
+    lldb_executable = os.environ['LLDB']
+
+  # Try using builtin module location support ('lldb -P')
+  from subprocess import check_output, CalledProcessError
+  try:
+    with open(os.devnull, 'w') as fnull:
+      lldb_minus_p_path = check_output("%s -P" % lldb_executable, shell=True, stderr=fnull).strip()
+    if not os.path.exists(lldb_minus_p_path):
+      #lldb -P returned invalid path, probably too old
+      pass
+    else:
+      sys.path.append(lldb_minus_p_path)
+      import lldb
+      return True
+  except CalledProcessError:
+    # Cannot run 'lldb -P' to determine location of lldb python module
+    pass
+  except ImportError:
+    # Unable to import lldb module from path returned by `lldb -P`
+    pass
+
+  # On Mac OS X, use the try the default path to XCode lldb module
+  if "darwin" in sys.platform:
+    xcode_python_path = "/Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework/Versions/Current/Resources/Python/"
+    sys.path.append(xcode_python_path)
+    try:
+      import lldb
+      return True
+    except ImportError:
+      # Unable to import lldb module from default Xcode python path
+      pass
+
+  return False
+
+if not import_lldb():
+  import vim
+  vim.command('redraw | echo "%s"' % " Error loading lldb module; vim-lldb will be disabled. Check LLDB installation or set LLDB environment variable.")
-- 
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