[all-commits] [llvm/llvm-project] e6f6c5: [Support] Improve Windows widenPath and add suppor...

[Andrew Ng via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: e6f6c551213a65b66e63f3c5d84b85d2b99097f3
      https://github.com/llvm/llvm-project/commit/e6f6c551213a65b66e63f3c5d84b85d2b99097f3
  Author: Andrew Ng <andrew.ng at sony.com>
  Date:   2020-03-19 (Thu, 19 Mar 2020)

  Changed paths:
    M llvm/include/llvm/Support/Path.h
    M llvm/include/llvm/Support/Windows/WindowsSupport.h
    M llvm/lib/Support/Windows/Path.inc
    M llvm/lib/Support/Windows/Program.inc
    M llvm/unittests/Support/Path.cpp

  Log Message:
  -----------
  [Support] Improve Windows widenPath and add support for long UNC paths

Check the path length limit against the length of the UTF-16 version of
the input rather than the UTF-8 equivalent, as the UTF-16 length may be
shorter. Move widenPath from the llvm::sys::path namespace in Path.h to
the llvm::sys::windows namespace in WindowsSupport.h. Only use the
reduced path length limit for create directory. Canonicalize using
sys::path::remove_dots().

Differential Revision: https://reviews.llvm.org/D75372