Add install_tree, force_symlink helper functions.

1 files changed, 0 insertions, 82 deletions

diff --git a/lib/spack/llnl/util/link_tree.py b/lib/spack/llnl/util/link_tree.py
index 4d778eca1e..583f077b79 100644
--- a/lib/spack/llnl/util/link_tree.py
+++ b/lib/spack/llnl/util/link_tree.py
@@ -32,88 +32,6 @@ from llnl.util.filesystem import *
 empty_file_name = '.spack-empty'
 
 
-def traverse_tree(source_root, dest_root, rel_path='', **kwargs):
-    """Traverse two filesystem trees simultaneously.
-
-    Walks the LinkTree directory in pre or post order.  Yields each
-    file in the source directory with a matching path from the dest
-    directory, along with whether the file is a directory.
-    e.g., for this tree::
-
-        root/
-          a/
-            file1
-            file2
-          b/
-            file3
-
-    When called on dest, this yields::
-
-        ('root',         'dest')
-        ('root/a',       'dest/a')
-        ('root/a/file1', 'dest/a/file1')
-        ('root/a/file2', 'dest/a/file2')
-        ('root/b',       'dest/b')
-        ('root/b/file3', 'dest/b/file3')
-
-    Optional args:
-
-    order=[pre|post] -- Whether to do pre- or post-order traveral.
-
-    ignore=<predicate> -- Predicate indicating which files to ignore.
-
-    follow_nonexisting -- Whether to descend into directories in
-                          src that do not exit in dest. Default True.
-
-    follow_links -- Whether to descend into symlinks in src.
-
-    """
-    follow_nonexisting = kwargs.get('follow_nonexisting', True)
-    follow_links = kwargs.get('follow_link', False)
-
-    # Yield in pre or post order?
-    order  = kwargs.get('order', 'pre')
-    if order not in ('pre', 'post'):
-        raise ValueError("Order must be 'pre' or 'post'.")
-
-    # List of relative paths to ignore under the src root.
-    ignore = kwargs.get('ignore', lambda filename: False)
-
-    # Don't descend into ignored directories
-    if ignore(rel_path):
-        return
-
-    source_path = os.path.join(source_root, rel_path)
-    dest_path   = os.path.join(dest_root, rel_path)
-
-    # preorder yields directories before children
-    if order == 'pre':
-        yield (source_path, dest_path)
-
-    for f in os.listdir(source_path):
-        source_child = os.path.join(source_path, f)
-        dest_child   = os.path.join(dest_path, f)
-        rel_child    = os.path.join(rel_path, f)
-
-        # Treat as a directory
-        if os.path.isdir(source_child) and (
-            follow_links or not os.path.islink(source_child)):
-
-            # When follow_nonexisting isn't set, don't descend into dirs
-            # in source that do not exist in dest
-            if follow_nonexisting or os.path.exists(dest_child):
-                tuples = traverse_tree(source_root, dest_root, rel_child, **kwargs)
-                for t in tuples: yield t
-
-        # Treat as a file.
-        elif not ignore(os.path.join(rel_path, f)):
-            yield (source_child, dest_child)
-
-    if order == 'post':
-        yield (source_path, dest_path)
-
-
-
 class LinkTree(object):
     """Class to create trees of symbolic links from a source directory.