Added script for fixing broken symlinks in toolchains

scripts/fixsymlink.py

@@ -0,0 +1,47 @@
+# Copyright (C) Ivan Kravets <me@ikravets.com>
+# See LICENSE for details.
+
+from os import chdir, getcwd, readlink, remove, symlink, walk
+from os.path import exists, islink, join, split
+from sys import exit as sys_exit
+
+
+def get_symrelpath(root, sympath, ending=None):
+    head, tail = split(sympath)
+
+    if ending:
+        ending = join(tail, ending)
+        relpath = join("..", ending)
+    else:
+        relpath = tail
+        ending = tail
+
+    if exists(join(root, relpath)):
+        return relpath
+    elif head:
+        return get_symrelpath(root, head, ending)
+    else:
+        raise Exception()
+
+
+def fix_symlink(root, fname, brokenlink):
+    prevcwd = getcwd()
+    symrelpath = get_symrelpath(root, brokenlink)
+
+    chdir(root)
+    remove(fname)
+    symlink(symrelpath, fname)
+    chdir(prevcwd)
+
+
+def main():
+    for root, dirnames, filenames in walk("."):
+        for f in filenames:
+            path = join(root, f)
+            if not islink(path) or exists(path):
+                continue
+            fix_symlink(root, f, readlink(path))
+
+
+if __name__ == "__main__":
+    sys_exit(main())